CONSERVATION OF HERITAGE SITES INCLUDING HERITAGE BUILDINGS, HERITAGE PRECINCTS AND NATURAL FEATURE AREAS.
Conservation of heritage sites shall include buildings, artifacts, structures, areas and precincts of historic, aesthetic, architectural, cultural or environmentally significant nature (heritage buildings and heritage precincts), natural feature areas of environmental significance or sites of scenic beauty.
8.1 APPLICABILITY
This regulation shall apply to heritage sites which shall include those buildings, artifacts, structures, streets, areas and precincts of historic, architectural, aesthetic, cultural or environmental value (hereinafter referred to as Listed Heritage Buildings / Listed Heritage Precincts) and those natural feature areas of environmental significance or of scenic beauty including, but not restricted to, sacred groves, hills, hillocks, water bodies (and the areas adjoining the same), open areas, wooded areas, points, walks, rides, bridle paths (hereinafter referred to as ‘listed natural feature areas’) which shall be listed in notification(s) to be issued by the State Government.
8.1.1 Definitions
(a) “Heritage building” means and includes any building of one or more premises or any part thereof and/or structure and/or artifact which requires conservation and / or preservation for historical and / or architectural and / or artisanary and /or aesthetic and/or cultural and/or environmental and/or ecological purpose and includes such portion of land adjoining such building or part thereof as may be required for fencing or covering or in any manner preserving the historical and/or architectural and/or aesthetic and/or cultural value of such building.
(b) “Heritage Precincts” means and includes any space that requires conservation and /or preservation for historical and / or architectural and/or aesthetic and/or cultural and/or environmental and/or ecological purpose. Walls or other boundaries of a particular area or place or building or may enclose such space by an imaginary line drawn around it.
(c) “Conservation” means all the processes of looking after a place so as to retain its historical and/or architectural and/or aesthetic and/or cultural significance and includes maintenance, preservation, restoration, reconstruction and adoption or a combination of more than one of these.
(d) “Preservation” means and includes maintaining the fabric of a place in its existing state and retarding deterioration.
(e) “Restoration” means and includes returning the existing fabric of a place to a known earlier state by removing accretions or by reassembling existing components without introducing new materials.
(f) “Reconstruction” means and includes returning a place as nearly as possible to a known earlier state and distinguished by the introduction of materials (new or old) into the fabric. This shall not include either recreation or conjectural reconstruction.
8.2 RESPONSIBILITY OF THE OWNERS OF HERITAGE BUILDINGS
It shall be the duty of the owners of heritage buildings and buildings in heritage precincts or in heritage streets to carry out regular repairs and maintenance of the buildings. The State Government, the Local Bodies and Authorities concerned shall not be responsible for such repair and maintenance except for the buildings owned by the Government and the Urban Local Bodies.
8.3 RESTRICTIONS ON DEVELOPMENT / RE-DEVELOPMENT / REPAIRS ETC
(i) No development or redevelopment or engineering operation or additions / alterations, repairs, renovations including painting of the building, replacement of special features or plastering or demolition of any part thereof of the said listed buildings or listed precincts or listed natural feature areas shall be allowed except with the prior permission of Commissioner, Urban Local Bodies/Authority. Before granting such permission, the agency concerned shall consult the Heritage Conservation Committee to be appointed by the State Government and shall act in according with the advice of the Heritage Conservation Committee.
(ii) Provided that, before granting any permission for demolition or major alterations / additions to listed buildings (or buildings within listed streets or precincts), or construction at any listed natural features, or alteration of boundaries of any listed natural feature areas, objections and suggestions from the public shall be invited and shall be considered by the Heritage Conservation Committee.
(iii) Provided that, only in exceptional cases, for reasons to be recorded in writing, the Commissioner, Urban Local Bodies/ Authority may refer the matter back to the Heritage Conservation Committee for reconsideration. However, the decision of the Heritage Conservation Committee after such reconsideration shall be final and binding.
8.4 PENALTIES
Violation of the regulations shall be punishable under the provisions regarding unauthorized development. In case of proved deliberate neglect of and/or damage to Heritage Buildings and Heritage Precincts, or if the building is allowed to be damaged or destroyed due to neglect or any other reason, in addition to penal action provided under the concerned Act, no permission to construct any new building shall be granted on the site if a Heritage Building or Building in a Heritage Precinct is damaged or pulled down without appropriate permission from Commissioner, Urban Local Bodies/Authority. It shall be open to the Heritage Conservation Committee to consider a request for re building/reconstruction of a Heritage Building that was unauthorizedly demolished or damaged, provided that the total built-up area in all floors put together in such new construction is not in excess of the total built-up area in all floors put together in the original Heritage Building in the same form and style in addition to other controls that may be specified.
8.5 PREPARATION OF LIST OF HERITAGE SITES INCLUDING HERITAGE BUILDINGS, HERITAGE PRECINCTS AND LISTED NATURAL FEATURE AREAS
The list of heritage sites including Heritage Buildings, Heritage Precincts and listed Natural Features Areas is to be prepared and supplemented by the Commissioner, Urban Local Bodies / Authority on the advice of the Heritage Conservation Committee. Before being finalized, objections and suggestions of the public are to be invited and considered. The said list to which the regulation applies shall not form part of this regulation for the purpose of Building Bye-laws. The list may be supplemented from time to time by Government on receipt of proposal from the agency concerned or by Government suo moto provided that before the list is supplemented, objections and suggestions from the public be invited and duly considered by the Commissioner, Urban Local Bodies,/ Authority and the Heritage Conservation Committee.
When a building or group of buildings or natural feature areas are listed it would automatically mean (unless otherwise indicated) that the entire property including its entire compound / plot boundary along with all the subsidiary structures and artifacts, etc. within the compound/plot boundary, etc. shall form part of list.
8.6 ALTERATION / MODIFICATION / RELAXATION IN DEVELOPMENT NORMS
On the advice of the said Heritage Conservation Committee to be appointed by the Government and for reasons to be recorded in writing, the Commissioner, Urban Local Bodies/ Authority shall follow the procedure as per Urban & Country Planning Act, 2007 to alter, modify or relax the Development Control Norms prescribed in the Master Plan, if required, for the conservation or preservation or retention of historic or aesthetic or cultural or architectural or environmental quality of any heritage site.
8.7 HERITAGE PRECINCTS / NATURAL FEATURE AREAS
In cases of streets, precincts, areas and (where deemed necessary by the Heritage Conservation Committee) natural feature areas notified, development permissions shall be granted in accordance with the
special separate regulation prescribed for respective streets, precincts / natural feature areas which shall be framed by the Commissioner, Urban Local Bodies / Authority on the advice of the Heritage Conservation Committee.
Before finalizing the special separate regulations for precincts, streets, natural features, areas, the draft of the same shall be published in the Official Gazette and in leading newspapers for the purpose of inviting objections and suggestions from the public. All objections and suggestions received within a period of 30 days from the date of publication in the official gazette shall be considered by the Commissioner, Urban Local Bodies/ Authority and Heritage Conservation Committee.
After consideration of the above suggestions and objections, the agency concerned, acting on the advice of the Heritage Conservation Committee shall modify (if necessary) the aforesaid draft separate regulations for streets, precincts, areas and natural features and forward the same to Government for notification
8.8 ROAD WIDENING
Widening of the existing roads under the Master Plan of the City or Town / Zonal Development Plan or in the Layout Plan shall be carried out considering the existing heritage buildings (even if they are not included in a Heritage Precinct) or which may affect listed natural features areas.
8.9 INCENTIVE USES FOR HERITAGE BUILDINGS
In cases of buildings located in non-commercial use zones included in the Heritage Conservation List, if the owner / owners agree to maintain the listed heritage building as it is in the existing state and to preserve its heritage state with due repairs and the owner / owners / lessees give a written undertaking to that effect, the owner / owners / lessees may be allowed with the approval of the Heritage Conservation Committee within permissible use zone to convert part or whole thereof of the non commercial area within such a heritage building to commercial/office use/hotel. Provided that if the heritage building is not maintained suitably or if the heritage value of the building is spoiled in any manner, the commercial / office / hotel use shall be disallowed.
8.10 MAINTAINING SKYLINE AND ARCHITECTURAL HARMONY
After the guidelines are framed, buildings within heritage precincts or in the vicinity of heritage sites shall maintain the skyline in the precinct and follow the architectural style (without any high-rise or multi storeyed development) as may be existing in the surrounding area, so as not to diminish or destroy the value and beauty of or the view from the said heritage sites. The development within the precinct or in the vicinity of heritage sites shall be in accordance with the guidelines framed by the Commissioner, Urban Local Bodies/Authority and the advice of the Heritage Conservation Committee or separate regulations / guidelines, if any, prescribed for respective zones by Urban Local Bodies / Authority.
8.11 RESTRICTIVE COVENANTS
Restrictions existing as imposed under covenants, terms and conditions on the leasehold plots either by the State Government or Urban Local Bodies of the city/town or by Authority shall continue to be imposed in addition to Development Control Regulations. However, in case of any conflict with the heritage preservation interest/environmental conservation, this Heritage Regulation shall prevail.
8.12 GRADING OF THE LISTED BUILDINGS / LISTED PRECINCTS
Listed Heritage Buildings / Listed Heritage Precincts may be graded into three categories. The definition of these and basic guidelines for development permissions are as follows:
Listing does not prevent change of ownership or usage. However, change of use of such Listed Heritage Building / Listed Precincts shall not be permitted without prior approval of the Heritage Conservation Committee. Use should be in harmony with the said listed heritage site.
| Grade-I | Grade-II | Grade-III |
| (A) Definition Heritage Grade-I comprises buildings and precincts of national or historic importance, embodying excellence in architectural style, design, technology and material usage and/or aesthetics; they may be associated with a great historic event, personality, movement or institution. They have been and are the prime landmarks of the region. All natural sites shall fall within Grade-I. |
Heritage Grade-II (A&B) comprises of buildings and precincts of regional or local importance possessing special architectural or aesthetic merit, or cultural or historical significance though of a lower scale than Heritage Grade-I. They are local landmarks, which contribute to the image and identity of the region. They may be the work of master craftsmen or may be models of proportion and ornamentation or designed to suit a particular climate. |
Heritage Grade-III comprises building and precincts of importance for townscape; that evoke architectural, aesthetic, or sociological interest though not as much as in Heritage Grade-II. These contribute to determine the character of the locality and can be representative of lifestyle of a particular community or region and may also be distinguished by setting, or special character of the façade and uniformity of height, width and scale |
| (B) Objective: Heritage Grade-I richly deserves careful preservation |
Heritage Grade-II deserves intelligent conservation. |
Heritage Grade-II deserves intelligent conservation (though on a lesser scale than Grade-II and special protection to unique features and attributes). |
| (C) Scope for Changes: No interventions be permitted either on exterior or interior of the heritage building or natural features unless it is necessary in the interest of strengthening and prolonging the life of the buildings/or precincts or any part or features thereof. For this purpose, absolutely essential and minimum changes would be allowed and they must be in conformity with the original. |
Grade-II(A): Internal changes and adaptive re-use may by and large be allowed but subject to strict scrutiny. Care would be taken to ensure the conservation of all special aspects for which it is included in Heritage Grade- II. Grade-II(B): In addition to the above, extension or additional building in the same plot or compound could in certain circumstances, be allowed provided that the extension / additional building is in harmony with (and does not detract from) the existing heritage building(s) or precincts especially in terms of height and façade. |
Internal changes and adaptive re-use may by and large be allowed. Changes can include extensions and additional buildings in the same plot or compound. However, any changes should be such that they are in harmony with and should be such that they do not detract from the existing heritage building/precinct |
| (D) Procedure: Development permission for the changes would be given on the advice of the Heritage Conservation Committee |
Development permission for the changes would be given on the advice of the Heritage Conservation Committee. |
Development permission for changes should be given on the advice of the Heritage Conservation Committee. |
8.13 OPINION OF THE HERITAGE CONSERVATION COMMITTEE
Nothing mentioned above should be deemed to confer a right on the owner / occupier of the plot to demolish or reconstruct or make alterations to his heritage building / buildings in a heritage precinct or on a natural heritage site if in the opinion of the Heritage Conservation Committee, such demolition / reconstruction /alteration is undesirable.
8.14 APPROVAL TO PRESEVE THE BEAUTY OF THE AREA
The Heritage Conservation Committee shall have the powers to direct, especially in areas designated by them, that the exterior design and height of buildings should have their approval to preserve the beauty of the area.
8.15 SIGNS AND OUTDOOR DISPLAY STRUCTURES / INCLUDING STREET FURNITURE ON HERITAGE SITES
Commissioner, Urban Local Bodies / Authority on the advice of the Heritage Conservation Committee shall frame regulations or guidelines to regulate signs, outdoor display structures and street furniture on heritage sites.
8.16 COMPOSITION OF HERITAGE CONSERVATION COMMITTEE
The Heritage Conservation Committee shall be appointed by the State Government comprising of:
(i) Secretary (UD, Housing and Town Planning) Chairman
(ii) Chief Town Planner/ Director, Town Planning Member Secretary
(iii) Structural Engineer having experience of ten years in the field and membership of the Institution of Engineers, India Member
(iv) Senior Architect PWD,AP registered with the Council Of Architecture Member
(v) Environmentalist having in-depth knowledge and experience of 10 years of the subject Member
(vi) Historian having knowledge of the region having 10 years experience in the field Member
(vii) Town Planner with valid registration.Member
(viii) Representative of State Archeological Department Member
(a) The Committee shall have the powers to co-opt upto three additional members who may have related experience.
(b) The tenure of the Chairman and Members other than Government Department / Local Bodies shall be three years.
The terms of reference of the Committee shall inter alia be:
(i) to advice the Commissioner, Urban Local Bodies/Authority whether development permission is to be granted under Building Bye-laws No.8.3 and the conditions of permission (vide BBL No. 8);
(ii) to prepare a supplementary list of heritage sites, which include buildings artifacts, structures, streets, areas, precincts of historic, aesthetic, architectural, cultural, or environmental significance and a supplementary list of natural feature areas of environmental significance, scenic beauty including but not restricted to sacred groves, hills, hillocks, water bodies (and the areas adjoining the same), open areas, wooded areas, points, walks, rides, bridle paths etc. to which this Building Bye-Law shall apply.
(iii) to advise whether any relaxation, modification, alteration, or variance of any of the Building Bye-laws be made.
(iv) to frame special regulations / guidelines for precincts and if necessary for natural feature areas to advise the Commissioner, Urban Local Bodies/ Authority regarding the same;
(v) to advise whether to allow commercial / office/ hotel use in the (name of the areas) and when to terminate the same;
(vi) to advise the Commissioner, Urban Local Bodies / Authority in the operation of this Building Bye-laws to regulate or eliminate/erection of outside advertisements/bill boards/street furniture;
(vii) to recommend guidelines to the Commissioner, Urban Local Bodies / Authority to be adopted by those private parties or public / Government agencies who sponsor beautification schemes at heritage sites;
(viii) to prepare special designs and guidelines / publications for listed buildings, control of height and essential façade characteristics such as maintenance of special types of balconies and other heritage items of the buildings and to suggest suitable designs adopting appropriate materials for replacement keeping the old form intact to the extent possible.
(ix) to prepare guidelines relating to design elements and conservation principles to be adhered to and to prepare other guidelines for the purposes of this Regulation;
(x) to advise the Commissioner, Urban Local Bodies / Authority on any other issues as may be required from time to time during course of scrutiny of development permissions and in overall interest of heritage / conservation;
(xi) to appear before the Government either independently or through representatives or on behalf of the Commissioner, Urban Local Bodies / Authority in cases of Appeals under Municipal Law/ Act in cases of listed buildings / heritage buildings and listed precincts / heritage precincts and listed natural feature areas.
8.17 IMPLICATIONS OF LISTING AS HERITAGE BUILDINGS
The Regulations do not amount to any blanket prevention of demolition or of changes to Heritage Buildings. The only requirement is to obtain clearance from the Commissioner, Urban Local Bodies/ Authority and Heritage Conservation Committee for demolition or changes of Heritage Buildings from heritage point of view.
8.18 OWNERSHIP NOT AFFECTED
Sale and purchase of Heritage Buildings does not require any permission from Municipality/ Authority/or Heritage Conservation Committee. The Regulations do not affect the ownership or usage. However, such usage should be in harmony with the said listed precincts / buildings. Care will be taken to ensure that the development permission relating to these buildings is given within 60 days.
ADDITIONAL PROVISONS IN DEVELOPMENT CONTROL REGULATIONS FOR SAFETY IN NATURAL HAZARD PRONE AREAS
9.1 INTRODUCTION
Subject to various provisions in previous Chapters, the following additional features are incorporated in the Bye-laws. These additional provisions should be notified under the relevant provision of the applicable legislation in this behalf.
9.2 DEFINITION
(i) Additions and /or Alterations Means any change in existing authorized building or change from one use to another use, or a structural change such as additions to the area or height, or the removal of part of a building, or a change to the structure such as the construction or cutting into or removal of any structural wall or part of a structural wall, column, beam, joist, floor including a mezzanine floor or other support. The addition to any existing structure shall only be permitted if it complies with the provisions of these Bye-laws.
(ii) Building Means all types of permanent building defined below, but structure of temporary nature like tents, hutment as well as shamianas erected for temporary purposes for ceremonial occasions, with the permission of the Competent Authority, shall not be considered to be "buildings". Definition of building shall also include "Unsafe Building" means a building which,
- is structurally unsafe,
- is insanitary,
- is not provided with adequate means of egress,
- constitutes a fire hazard,
- in relation to its existing use constitutes a hazard to safety or health or
- public welfare by reasons of inadequate maintenance, dilapidation or abandonment.
(iii) Natural Hazard means The probability of occurrence, within a specific period of time in a given area, of a potentially damaging natural phenomenon.
(iv) Natural Hazard Prone Areas means Areas likely to have moderate to high intensity of earthquake, or cyclonic storm, or significant flood flow or inundation, or land slides/mud flows/avalanches, or one or more of these hazards.
Note
Moderate to very high damage risk zones of earthquakes are as shown in Seismic Zones III, IV and V specified in IS:1893; moderate to very high damage risk zones of cyclones are those areas along the sea coast of India prone to having wind velocities of 39 m/s or more as specified in IS:875(Part 3;) and flood prone areas in river plains (unprotected and protected) are indicated in the Flood Atlas of India prepared by the Central Water Commission, besides, other areas can be flooded under conditions of heavy intensity rains, inundation in depressions, back flow in drains, inadequate drainage, etc. as identified through local surveys in the development plan of the area and landslide prone areas as identified by State Government / Land surveys.
(v) Lifeline Building mean
Those buildings which are of post earthquake importance such as hospital building, power house building, telephone exchange building and the like.
(vi) Special Building mean
Those buildings housing large gathering at a time such as cinemas, theatres, meeting halls, assembly halls, lecture halls, town halls and the like.
(vii) Retrofitting
Means upgrading the strength of an unsafe building by using suitable engineering techniques.
(viii) Quality Control means
Related to construction quality and to control of variation in the material properties and structural adequacy. In case of concrete, it is the control of accuracy of all operations which affect the consistency and strength of concrete, batching, mixing, transporting, placing, curing and testing.
(ix) Quality Audit means
Third party quality audit for an independent assessment of the quality and seismic or cyclone resistant features of all the high rise buildings in earthquake zone IV and V and coastal areas of the country. The quality audit report shall consist of conformance or non-conformance of structures with the technical specifications for earthquake and cyclone resistance and to suggest remedies/ rectification if any.
(x) Quality Assurance means
All planned and systematic actions necessary to ensure that the final product i.e.structure or structural elements will perform satisfactorily in service life.
(xi) Compliance means
The verification of the properties of construction materials based on test data and verification of the strength and structural adequacy for various components of buildings and structures.meets with the required standard.
(xii) Non-Structural Component means
Those components of buildings which do not contribute to the structural stability such as infill walls in RCC. framed buildings, glass panes, claddings, parapet walls, chimneys etc.
9.3 GENERAL REQUIREMENTS FOR DEVELOPMENT
9.3.1 Requirements of Site
(i) No earthquake prove or cyclonic zone land shall be used as a site for the construction of building, if the site is found to be liable to liquefaction by the Competent Authority under the earthquake intensity of the area, except where appropriate protection measures are taken
(ii) If the Competent Authority finds that the proposed development falls in the area liable to storm surge during cyclone, except where protection measures are adopted to prevent storm surge damage.
9.3.2 Requirement of Site Plan
(i) In hilly terrain, the site plan should include location of land slide prone areas, if any, on or near the site, detected during reconnaissance. The Authority in such case shall cause to ensure that the site is away from such land slide prone areas.
(ii) The site plan on a sloping site may also include proposals for diversion of the natural flow of water coming from uphill side of the building away from the foundation.
9.4` DECISION OF THE AUTHORITY
9.4 .1 Grant or Refusal of the Permission for Development On receipt of the application for Development Permission, the Competent Authority after making such inquiry and clearance from such an expert whenever considered necessary for the safety of building, as it thinks fit may communicate its decisions granting with or without condition including condition of submission of detailed working drawing/ structural drawing along with soil investigation report before the commencement of the work or refusing permission to the applicant as per the provisions of the Bye-Laws. On receipt of the application for Development Permission, the Competent Authority after making such inquiry as he thinks fit may communicate its decisions granting or refusing permission to the applicant as per the provisions of the Bye-Lays. The permission may be granted with or without conditions or subject to any general or special orders made by the State Government in this behalf.
The Development permission shall be in No. Form 5 and it should be issued by an officer authorized by the Competent Authority in this behalf. Every order granting permission subject to conditions or refusing permission shall state the grounds for imposing such conditions or for such refusal.
9.4.2 Exception for Small Building
The Competent Authority, however, may consider to grant exemption for submission of working drawing, structural drawing and soil investigation report in case the Competent Authority is satisfied that in
the area where the proposed construction is to be taken, similar types of structure and soil investigation reports are already available on record and such request is from an individual owner/developer, having plot of not more than 500 sq mt. in size and for a maximum 3 storied residential building.
If the local site conditions do not require any soil testing or if a soil testing indicates that no special structural design is required, a small building having up to ground + 2 floors, having load bearing structure, may be constructed.
If the proposed small house is to be constructed with load bearing type masonry construction technique, where no structural design is involved, no certificate from a Structural Engineer on Record will be
required (to be attached with Appendix “A-2” However, a Structural Design Basis Report Appendix “A-6” has to be submitted, duly filled in.
9.4.3 Suspension of Permission
Development permission granted under the relevant section of the Bye Laws shall deemed to be suspended in cases of resignation by any professional namely Architect on Record/ Engineer on Record,
Structural Engineer on Record, and Construction Engineer on Record, till the new appointments are made. During this period construction shall not be carried out at the site. Any work at site during this time shall be treated as unauthorized development without any due permission.
9.4.4 Structural Deviation during Course of Construction
Notwithstanding anything stated in the above Bye Laws it shall be incumbent on every person whose plans have been approved to submit revised (amended) plans for any structural deviations he proposes to make during the course of construction of his building work and the procedure laid down for plans or other documents here to before shall apply to all such Revised (amended) plans
ADDITIONAL PROVISONS IN BUILDING BYE LAWS FOR STRUCTURAL SAFETY IN NATURAL HAZARD PRONE AREAS
10.1 STRUCTURAL DESIGN
Subject to various provisions in the previous chapters, any building under the jurisdiction of these Bye-laws/regulations, structural design/ retrofitting shall only be carried out by a Structural Engineer or Structural Design Agency. Proof checking of various designs/ reports shall be carried out by the competent authority.
In general, the structural design of foundations, elements of masonry, timber, plain concrete, reinforced concrete, pre-stressed concrete and structural steel shall conform to the provisions of part VI Structural
Design Section – 1 Loads, Section – 2 Foundation, Section – 3 Wood, Section – 4 Masonry, Section – 5 Concrete & Section – 6 Steel of National Building Code of India (NBC), taking into consideration the Indian Standards as given below:
For General Structural Safety
1. IS: 456:2000 “Code of Practice for Plain and Reinforced Concrete
2. IS: 800-1984 “Code of Practice for General Construction in Steel
3. IS: 801-1975 “Code of Practice for Use of Cold Formal Light Gauge Steel Structural Members in General Building Construction
4. IS 875 ( Part 2):1987Design loads ( other than earthquake ) for buildings and structures Part2 Imposed Loads
5. IS 875 (Part 3):1987Design loads (other than earthquake) for buildings and structures Part 3 Wind Loads
6. IS 875 ( Part 4):1987Design loads ( other than earthquake ) for buildings and structures Part 4 Snow Loads
7. IS 875 (Part 5):1987Design loads (other than earthquake) for buildings and structures Part 5 special loads and load combination
8. IS: 883:1966 “Code of Practice for Design of Structural Timber in Building
9. IS: 1904:1987 “Code of Practice for Structural Safety of Buildings: Foundation”
10. IS1905:1987 “Code of Practice for Structural Safety of Buildings: Masonry Walls
11. IS 2911 (Part 1): Section 1: 1979 “Code of Practice for Design and Construction o
Pile Foundation Section 1
Part 1: Section 2 Based Cast-in-situ Piles
Part 1: Section 3 Driven Precast Concrete Piles
Part 1: Section 4 Based precast Concrete Piles
Part 2: Timber Piles
Part 3 Under Reamed Piles
Part 4 Load Test on Piles
For Cyclone/Wind Storm Protection
12. IS 875 (3)-1987 "Code of Practice for Design Loads (other than Earthquake) for Buildings and Structures, Part 3, Wind Loads"
13 Guidelines (Based on IS 875 (3)-1987) for improving the Cyclonic Resistance of Low rise houses and other building.
For Earthquake Protection
14 IS: 1893-2002 "Criteria for Earthquake Resistant Design of Structures (Fifth Revision)"
15 IS:13920-1993 "Ductile Detailing of Reinforced Concrete Structures subjected to Seismic Forces - Code of Practice"
16 IS:4326-1993 "Earthquake Resistant Design and Construction of Buildings - Code of Practice (Second Revision)"
17 IS:13828-1993 "Improving Earthquake Resistance of Low Strength Masonry Buildings - Guidelines"
18 IS:13827-1993 "Improving Earthquake Resistance of Earthen Buildings - Guidelines",
19 IS:13935-1993 "Repair and Seismic Strengthening of Buildings - Guidelines"
For Protection of Landslide Hazard
20 IS 14458 (Part 1): 1998 Guidelines for retaining wall for hill area: Part 1 Selection of type of wall.
21 IS 14458 (Part 2): 1997 Guidelines for retaining wall for hill area: Part 2 Design of Retaining/breast walls
22 IS 14458 (Part 3): 1998 Guidelines for retaining wall for hill area: Part 3 Construction of dry stone walls
23 IS 14496 (Part 2): 1998 Guidelines for preparation of landslide – Hazard zonation maps in mountainous terrains: Part 2 Macro zonation
Note
Whenever an Indian Standard including those referred in the National Building Code or the National Building Code is referred, the latest revision of the same shall be followed except specific criteria, if any, mentioned above against that code.
10.2 STRUCTURAL DESIGN BASIS REPORT
In compliance of the design with the above Indian Standard, the Structural Engineer will submit a structural design basis report in the Proforma attached herewith covering the essential safety requirements specified in the Standard.
(i) The” Structural Design Basis Report (SDBR)”consists of four parts (Appendix-.6)
Part-1 - General Information/ Data
Part-2 – Reinforced Concrete Buildings
Part-3 - Steel Buildings
10.3 SEISMIC STRENGTHENING/RETROFITTING:
Prior to seismic strengthening/ retrofitting of any existing structure, evaluation of the existing structure as regards structural vulnerability in the specified wind/ seismic hazard zone shall be carried out by a
Registered Structural Engineer. If as per the evaluation of the Registered Structural Engineer the seismic resistance is assessed to be less than the specified minimum seismic resistance as given in the note below, action will be initiated to carry out the upgrading of the seismic resistance of the building as per applicable standard guidelines.
Note:
(a) For masonry buildings reference is to be made to IS: 4326 and IS: 13935 and
(b) For concrete buildings and structures reference to be made to
BIS code on evaluation and seismic strengthening for retrofitting of RCC buildings under preparation at present.
10.4 REVIEW OF STRUCTURAL DESIGN:
(i) The Competent Authority shall create a Structural Design Review Panel (SDRP) consisting of senior registered Structural Engineers, whose task will be to review and certify the design prepared by Structural Engineer on record, whenever referred by the competent authority.
(ii) The Reviewing Agency shall submit addendum to the certificate or a new certificate in case of subsequent changes in structural design.
Notes:
• Public building means assembly of large number of people including schools, hospitals, Courts etc.
• Special structure means large span structures such as stadium, assembly halls, or tall structures such as water tanks, TV tower, chimney, etc.
10.5 CERTIFICATION REGARDING STRUCTURAL SAFETY IN DESIGN:
Structural Engineer on record shall give a certificate of structural safety of his design as per Proforma given in Form-3 and Form- 14. (Appendix-J & L) at the time of completion.
10.6 CONSTRUCTIONAL SAFETY
10.6.1 Supervision: All constructions shall be carried out under supervision of the Construction Engineer on record for various seismic zones.
10.6.2 Certification of structural safety in construction: The Construction Engineer on record shall give a certificate of structural safety of construction as per Performa given in Form-13 (Appendix-K) at the time of completion.
10.7 CONTROL OF SIGNS (HOARDINGS) AND OUTDOOR DISPLAY STRUCTURES AND PAGING TOWER AND TELEPHONE TOWER AND OUTDOOR DISPLAY STRUCTURES:
Following provisions shall apply for telecommunication infrastructure.
a) Location: The Telecommunication Infrastructure shall be either placed on the building roof tops or on the ground or open space within the premises subject to other regulations.
b) Type of structure
(i) Steel fabricated tower or antennae’s on M.S. pole.
(ii) Pre-fabricated shelters of fibre glass or P.V.C. on the building roof top/terrace for equipment. (iii) Masonry Structure/ Shelter on the ground for equipment.
(iv) D.G. Set with sound proof covers to reduce the noise level.
c) Requirement:
(i) Every applicant has to obtain/ procure the necessary permission from the “Standing Advisory Committee on Radio Frequency Allocation” (SACFA) issued by Ministry of Telecommunications.
(ii) Every applicant will have to produce the structural safety & stability certificate for the tower as well as the building from the Structural Engineer on Record (SER) which shall be the liability of both owner and SER.
(iii) Applicant has to produce / submit plans of structure to be erected.
d) Projection: No Pager and/or Telephone Tower shall project beyond the existing building line of the building on which it is erected in any direction.
10.9 STRUCTURAL REQUIREMENTS OF LOW COST HOUSING:
Notwithstanding anything contained herein, for the structural safety and services for development of low cost housing, the relevant provisions of applicable IS Codes shall be enforced.
10.10 INSPECTION:
The general requirement for inspection of the development shall also include the following regulation.
10.11 MAINTENANCE OF BUILDINGS:
In case of building older than fifty years, it shall be the duty of the owner of a building, to get his building inspected by a Registered Structural Engineer (RSE) within a year from the date of coming into
force of these regulations. The Structural Inspection Report (Form No.16) (Appendix M) shall be produced by the Owner to the Appropriate Authority. If any action, for ensuring the structural safety and stability of the building is to be taken, as recommended by SER, it shall be completed within five years. For other buildings, the owner shall get his building inspected after the age of building has crossed forty years. The procedure shall be followed as per above regulation.
10.12 PROTECTIVE MEASURES IN NATURAL HAZARD PRONE AREAS:
In natural hazard prone areas identified under the land use zoning regulations, structures buildings and installations which cannot be avoided, protective measures for such construction/ development should be properly safeguarded.
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