DCR

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ANNEXURE – XI

DEVELOPMENT CONTROL REGULATIONS WITH RESPECT TO

STRUCTURAL SAFETY

1        DEFINATION

♦    Natural Hazard

The probability of occurrence, within a specific period of time in a given area, of a potentially damaging natural phenomenon.

  ♦    Natural Hazard Prone Areas

Areas likely to have moderate to high intesity of earthquake, or cylconic 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 earthqualkes 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.

2        PROCEDURE FOR SECURING DEVELOPMENT PERMISSION

(1)    DETAILS TO BE SHOWN IN DRAWINGS :

A detailed plan (required copies) showing the plans, sections and elevations of the proposed development work to a scale of 1:100 showing the following details wherever applicable :

a)       Floor plans of all floors together with the covered, area; clearly indicating the size and spacing of all framing members and sizes of rooms and the position of staircases, ramps and lift wells.

b)       The use of all parts of the building.

c)       Thickness of walls, floor slabs and roof slabs with their materials. The section shall indicate the height of building and height of rooms and also the height of the parapet, the drainage and the slope of the roof. Atleast one section should be taken through the staircase. The position, form and dimension of the foundation, wall, floor, roofs, chimneys and various parts of the building, means of ventination and accesses to the various parts of the building and its appurtenances also should be shown in one cross section.

d)       The building elevation from the major street.

e)       The level of the site of the building, the level of lowest of building in relation to the level of any street adjoining the cartilage of the building in relation to one another and some known datum or crown of road.

f)         Cabin plan.

g)       The north point relative to the plans.

h)     The forms and dimensions of every water closets, privy, urinals, bathrooms, cesspools, well and water tank or cistern to be constructed in connection with the building.

i)     One copy of the detailed working drawing including structural details based on the approved building plan as verified and approved by the expert and shall submit the same before 7 days of commencement of the construction work at site for information and record. The applicant will inform the authority the date for commencement of work”.

Provided that in the case of individual residential building upto G+2 on a plot not more than 500 sq. mts. in size, the Competent Authority shall not enforce, on request of the owner/developer, to submit such details, subject to the condition that for such area similiar types of structures and soil investigation report are already available on record.

(2)   CERTIFICATE OF UNDERTAKING : Certificate in the prescribed form No. 2(a), 2(b), 2(c), and 2(d) by the registered Architect/Engineer/Structural Designer/Clerk of Works/ Developer/Owner.

(3)   DOCUMENTS TO BE FURNISHED WITH THE APPLICATION

(a) A person who is required under relevent section of the Act to give any notice or to furnish any plans/sections or written particulars by these Development Control Regulations, shall sign such notice, plans,, sections or written particulars or cause them to be signed by him and his duly authorised registered Architect, Engineer, Developer etc. as the case may be. Such person or authorised registered Architect, Engineer, Developer shall fursnish documentary evidence of his Authority. If such authorised registered Architect signs such notice or other document, Engineer, Developer it shall state the name and address of the person on whose behalf it has been furnished.

b)    Any notice or document shall be delivered to the office of the Competent Authority, within such hours as may be prescribed by the Competent Authority.

c)    The forms, plans, sections and descriptions to be furnished under these Developments Control Regulations shall all be signed by each of the the following persons :-

i)      A person making application for development permission under relevent section of the Act.

ii)     A person who has prepared the plans and sections with description who may be
registered engineer or an architect.

iii)    A person who is retained or engaged to supervise the said construction

iv)     A person who is responsible for the structural designs of the construction i.e. a structural designer.

v)      A clerk of works who is to look after the day-to-day supervision of the construction.

vi)     A Developer

d)    A person who is engaged either to prepare pain or to prepare a structural design and structural report or to supervise the building shall give an undertaking in Form No. 2(a), 2(b), 2(c), 2(d) prescribed under these Development Control Regulations.

e)    Every person who under the provision of the relevant sections of the Act may be required to furnish to the Authority any plan or other documents shall furnish copies (in required numbers) of such plans and other documents and copies (if required) of such documents which he may be called upon to furnish. One copy of each such plan and document shall be returned, on approval, to the applicant duly signed by the Competent Authority of the Authority or authorised officer.

f)      It shall be incumbent on every person whose plans have been approved to submit amended plans for any deviation amounting to increase in built-up area, F.S.I., building height or change in plans, 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 be applicable to all such amended plans.

g)    It shall be incumbent on every person whose plans have been approved, to submit a completion plan showing the final position of erected or re-erected building in duplicate or in required numbers and one copy of plan to be returned to the applicant after approval.

h)    Approval of drawing and acceptance of any statement, documents, structural report, structural drawings, progress certificate, or building completion certificates shall not discharge the owner, engineer, architect, clerk of works and structural designer, Developer, Owner from their responsibilities, imposed under the Act, the Development Control Regulations and the laws of tort and local acts.

REQUIREMENTS OF SITE :

No land shall be used as a site for the construction of building.

(a)   If the Competent Authority considers that the site is in sanitary or that it is dangerous to construct a building on it or no water supply is likely to be available within a reasonable period of time;

(b)   If the site is not drained properly or is incapable of being well drained;

(c)   if the building is proposed on any area filled up with carcasses, excreta, fifhy and offensive matter, till the production of a certificate from the Competent Authority to the effect that it is fit to be built upon from the health and sanitary point of view;

(d)   if the use of the said site is for a purpose which in the Competent Authority’s opinion may be a source of danger to the health and safety of the inhabitants of the neighbourhood,

(e)   if the Competent Authority is not satisfied that the owner of the building has taken the required measures to safeguard the construction from constantly getting damp;

(f)    if the level of the site is lower than the Datum Level prescribed by the Competent Authority depending on topography and drainage aspects.

(g)   for assembly use, for cinemas, theaters, places of public worship, residential hotels, lodging and boarding houses, unless the site has been previously approved by the Competent Authority and the Commissioner of Police;

(h)   unless it derives access from an authorised street/means of access described in these Regulations;

(i)    for industrial use other than a service industry unless the application is accompanied by a no objection certificate from the appropriate officer of the Industrial Location Policy;

(j) if the proposed development is likely to involve damage to or have deleterious impact on or is against urban aesthetic of environment or ecology and/or on historical / architectural/eshetical building and precincts or is not in the public interest.

(k) unless the owner/developer produces a certificate from an expert confirming that the site is not liable for liquefaction except in cases where adequate protective measures are taken as per the advice of the expert.

The owner/developer/builder shall provide necessary protection for safety for soil liquefaction as per advice and suggestions made by structural engineer based on teh report of soil test made by soil testing laboratory. The owner/developer/builder shall be responsible for getting such reports and identify such protection measures.

(I) If the proposed development falls in the area liable to storm surge during cyclone, except where protection measures are adopted to prevent storm surge damage.

STRUCTURAL DESIGNER :

(A) QUALIFICATION AND EXPERIENCE :-

A Degree in Civil Engineering recognised by All India Board of Technical Education. In addition to above qualification, the applicant should have atleast five years experience in structural design, two years of which must be in a responsibility capacity in form of structural designer.                                                     OR

A master’s degree in structural engineering from a recognised institute and at least two years experience in structural design work.                          OR

A Doctor’s degree in structural design from a recognised institute and at least one-year experience in structural design work.

(B) SCOP E OF WORK & COMPETENCE :-

To prepare & submit structural details fro –

i) All types of Buildings.

ii)  Special structures.

(C) DUTIES AND RESPONSIBILITIES

(a)   To prepare a report of the structural design.

(b)   To prepare detailed structural design and to prescribe the method and technique of its execution strictly on the basis of the National Building Code or relevant Indian Standard specifications.

(c)   To prepare detailed structural drawings and specifications for execution indicating thereon, design live loads, safe soil bearing capacity, specifications of material, assumptions made in design, special precautions to be taken by contractor to suit the design assumptions etc. whatever applicable.

(d)   To supply two copies of structural drawings to the site supervisor.

(e)   To inspect the works at all-important stages and certify that the work being executed is up to the satisfaction of the Architect/Engineer.

(f)     To certify the structural safety and overall structural soundness of the building to the Architect/Engineer.

(g)   To advise the Owner/Architect/Engineer for arranging for tests and their reports for soil, building material etc. for his evaluation and design consideration.

(h)   He shall prepare the revised calculations & drawings in case of any revision with reference to the earlier submission of drawing & design in a particular case.

(i)     To submit the certificate of structural safety and over all structural soundness of building to Competent Authority.

(D) REGISTRATION :-

(i)    The registration fees if any shall be payable as prescribed by the Competent Aurhority from time to time.

(ii)   If he/she is found negligent in his/her duties & responsibilites. The Competent Authority may black-list an Engineer in case of serious defaults or repeated defaults and shall inform the Institution of Engineers, India to take suitable action against such person. The registration shall be liable to be revoked temporarily or permanently by the Competent Authority in such cases of negligence and default.

4.    INSPECTION

(1)  Inspection at various stages :-

The Competent Authority at any time during erection of a building or the execution of any work or development, make an inspection thereof without giving prior notice of his intention to do so.

(2)  Inspection by Fire Department :-

For all multi-storied, high-rise and special building the work shall also be subject to inspection by the Chief Fire Officer, or Competent. Authority shall issue the occupancy certificate only after clearance by the said Chief Fire Officer / Competent Authority.

(3)  Unsafe Building :-

All unsafe building shall be considered to constitute danger to public safety hygiene and sanitation and shall be restored by repairs or demolished or dealt with as otherwise directed by the Competent Authority, in accordance with advise of the expert/s, if required, as prescribed in paragraph 13.

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