22.0 Structural Design.
22.1 The loads and forces on buildings shall be in accordance with Part VI Structural Design Section on loads in the National Building Code of India.
22.2 The structural design of foundations and elements of substructures and superstructures of wood, masonry, reinforced or prestressed concrete shall be in accordance with Part VI Structural Design, Section 1 - Loads, section 2 - Foundations, Sections 3 - Wood, Section 4 - Masonry, section 5 - Concrete, section 6 – Steel and section 7 – Prefabrication and Systems Building, of the National Building Code of India.
23.0 Fire Safety Requirements.
23.1 Buildings shall be planned, designed and constructed to ensure adequate fire safety to the property and inhabitants and this shall be carried out, in accordance with Part IV Fire Protection of the National Building Code of India. The fire fighting requirements, arrangements and installations required in building shall also conform to the provisions of Part IV Fire Protection of National Building Code of India.
23.1.1. For buildings with ground floor + four floors and above (or height of 15 mtrs and above), clearance of the Director of Fire Services shall be obtained regarding the Fire Protection Provision in building.
24.0 Building Services.
The planning, design and installation, of air-conditioning and heating installations of the building shall be in accordance with Part VIII Building Services, section 2 – Electrical Installations and section 3 - Air-conditioning and Heating of the National Building Code of India.
24.1 Plumbing Services.
The planning, design and installation of water supply systems, drainage, sanitary installations and gas supply installations in buildings, shall be in accordance with Part IX Plumbing Services, section 1 – Water Supply, section 2 – Drainage and Sanitation and section 3 – Gas supply of the National Building Code of India.
25.0 Telecom Services.
a) Every Residential / Commercial premises should provide an access path for leading copper / optical fibre cable to the building from outside the compound to the building:
b) A single 32mm GI pipe buried at a minimum depth of 60 cms from the compound wall to the access point inside the building. A hand hole of 0.60 x 0.60 x 0.60m at the outside of the compound wall where the pipe has been terminated should be provided.
c) In case of multistoreyed residential / business premises, minimum 2 pipes, one of 32mm and 2nd one of 60mm dia should be laid at a minimum depth of 60 cms with hand hole at the boundary of the compound towards the street / road.
d) The buildings should be completely pre wired within using concealed conduits for their communication requirements.
e) In case of the Multi-storeyed building a separate room preferably 4.50 x 3.65m may be provided in the basement for installation of telecom equipment. The room should have
proper ventilation and lighting. The internal wiring from all the apartments should be brought to this room and terminated on a termination box.
f) A vertical chute may be provided for drawing telecom cables from the basement with openings at every floor at a convenient place preferably near lift / stair case so that the telecom cable can be drawn for each floor / each flat.
26.0 Construction Practices and Safety.
26.1 The various construction activities like; demolition, excavation, blasting, actual construction from foundation level upto completion shall be in accordance with Part VII Construction Practices and Safety of the National Building Code of India.
26.2 The safety measures to be adopted during the various construction operations, including storage of materials on the construction site and Corporation / public land shall be in accordance with Part VII Construction Practices and Safety of the National Building Code of India.
27.0 Building Materials.
The requirement of building materials to be used in construction shall conform to Part V Building Materials of the National Building Code of India.
28.0 Alternate Materials, Methods of Design and Construction.
Methods:
28.1 The provisions of bye-laws 22, 24, 25 and 26 and other provisions of the bye-laws are not intended to prevent use of any material or method of construction not specifically prescribed in these bye-laws provided such a work has been approved by the Authority.
28.2 The Authority may approve any such alternative, provided it is found that the proposed alternative is satisfactory and conforms to the provisions of the relevant parts regarding materials, design and construction, method of work offered for the purpose intended, atleast equivalent to that prescribed in the bye-law in quality, strength, compatibility, effectiveness, fire, water and sound resistance, durability and safety.
28.3 Tests – Whenever there is insufficient evidence of compliance with the provisions of these bye-laws or evidence that any material or method of design or construction, does not conform to the requirement of the bye-laws or in order to substantiate claim for alternative materials, design or methods of construction, the Authority may require tests sufficiently in advance as proof of compliance. These tests shall be made by an approved agency at the expense of the owner. This clause does not apply to materials with I.S.I. Certificate.
28.3.1 Test methods shall be as per the relevant I.S. Codes.
28.3.2 Copies of the results of all such tests shall be retained by the Authority for a period of not less than 2 years after the acceptance of the alternative materials.
Note: All references of clauses of the National Building Code in these bye-laws is referred to the publication of the National Building Code of India 1983. If these numbers are changed in subsequent additions, corresponding numbers shall be substituted.
28.4. Provision of chutes: In all multistoreyed/highrise residential and commercial buildings, refuse chutes shall be provided in each floor and in specific area within the premises/compound of the building, for garbage collection. Such chutes shall be located away from the staircase and lift and shall not be at the core of the building.
28.5. Provision of letter or mail box: In all multistoried/high-rise buildings, the letter/mail box of appropriate dimensions shall be provided on the ground floor of residential and commercial buildings to meet the requirement of postal authorities.
28.6 Facilities at the construction premises – Temporary lavatories shall be provided for the use of workers within the construction premises where the floor area is more than 250 sqm.
29.0 Solar water heater requirements - Solar water heaters shall be provided as per Table 17 for different categories of buildings.
TABLE 17
(Bye-law 29.0)
SOLAR LIGHTING AND WATER HEATER REQUIREMENTS
30.0 Safety Measures Against Earth Quake in Building Construction
Buildings with ground plus four floors and above or buildings with a height of 15 mtrs. and above shall be designed and constructed adopting the norms prescribed in the National Building Code and in the “Criteria for earthquake resistant design of structures” bearing No. IS 1893-2002 published by the Bureau of Indian Standards, making the buildings resistant to earthquake. The supervision certificate and the completion certificate of every such building shall contain a certificate recorded by the Registered Engineer / Architect that the norms of the National Building Code and I.S. 1893-2002 have been followed in the design and construction of buildings for making the buildings resistant to earthquake.
31.0 Facilities for Physically Handicapped Persons
Public and semi public buildings having covered area of 300 sqm. and above shall be designed and constructed to provide facilities to the physically handicapped persons as prescribed in the Schedule XI of these bye-laws.
32.0 Rain Water Harvesting.
(a) Every building with a plinth area of exceeding 100 sq mtrs and built on a site measuring not less than 200 sq mtrs shall have one or more Rain Water Harvesting structures having a minimum total capacity as detailed in Schedule XII.
Provided that the Authority may approve the Rain Water Harvesting structures of specifications different from those in Schedules – XII, subject to the minimum capacity of Rain Water Harvesting being ensured in each case.
(b) The owner of every building mentioned in the bye-law 32 (a) shall ensure that the Rain Water Harvesting structure is maintained in good repair for storage of water for non potable purposes or recharge of groundwater at all times.
(c) The Authority may impose a levy of not exceeding Rs. 1000/- per annum for every 100 sq. mtr of built up area for the failure of the owner of any building mentioned in the bye-law 32(a) to provide or to maintain Rain Water Harvesting structures as required under these byelaws.