Provisions of NBC.pptx

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1. UNIT IV BUILDING CONSTRUCTION PRACTICE “PROVISIONS OF NATIONAL BUILDING CODE”

2. “Building codes are a series of ordinances enacted by a state or local governmental entity , establishing minimum requirements that must be met in the construction and maintenance of buildings”. The government establishes requirements and standards to protect people from unsafe living and working conditions. Introduction to Building Codes 2

3. Ensure public health and safety throughout a building. Most have come into play “after-the-fact” as a learning experience from a major tragedy. They are primarily concerned with Construction requirements Hazardous materials or equipment used in the building 75% of all codes and standards deal with fire Energy conservation Accessibility PURPOSE OF Codes 3

4. A building code is a document containing standardized requirement for the design & construction of most types of building. Codes regulate building construction & building use in order to protect the health, safety & welfare of the occupant. Codes express all aspects of construction including structural integrity, fire resistance, safe exists, lighting, electrical, energy conservation, plumbing, sanitary facilities, ventilation, seismic design & correct use of construction materials. Building codes classify standard by use & apply different standards to each classification. For example, schools & office buildings are in separate occupancy category with different performance requirement. What is building code? 4

5. The codes includes various aspect for regulation on design & construction viz; For Planning Building/Development work For Structural Design For Constructional aspects For Building Services (HVAC, electrical, Acoustics, lifts etc.) Plumbing Services (Water supply, Sewerage, Drainage, waste management) Landscaping, signs and outdoor display structures What is building code? 5

6. The purpose of all these building codes is to ensure public safety, health & welfare as affected by building construction. This purpose includes: Structural strength Sanitary equipment Light & ventilation Fire safety What is building code? 6

7. NATIONAL BUILDING CODE

8. The National Building Code of India (NBC), (a comprehensive building Code), is a national instrument providing guidelines for regulating the building construction activities across the country. It serves as a Model Code for adoption by all agencies involved in building construction works be they Public Works Departments, other government construction departments, local bodies or private construction agencies. What is National building code? 8

9. The Code mainly contains administrative regulations, development control rules and general building requirements; fire safety requirements; stipulations regarding materials, structural design and construction (including safety); and building and plumbing services. The National Building Code was first published in 1970 at the instance of Planning Commission and then revised in 1983. Thereafter three major amendments were issued, two in 1987 and the third in 1997. What is National building code? 9

10. T hese stud i es r esu l ted History and Overview - National building code in a recommendation that a un i fy the N A T IO N AL B U IL D I N G C O D E be p r epa r ed to building regulations throughout the country. In 1968 A Report on Economies in Construction Cost ’ was published by planning commission. It revealed that building bylaws and regulations and some of the prevailing methods of construction were outmoded; some designs were over burdened with safety factors; building bylaws of municipal bodies were outdated etc.

11. The Bureau of Indian Standards was established with the objective of harmonious development of standardization activity in India. This Bureau, Under the Bureau of Indian Standards Act, 1986 , established Indian Standards, by a process of consultation involving consumers, manufacturers, Government and regulatory bodies, technologists, scientists and testing laboratories through duly constituted committees. History and Overview - National building code

12. History and Overview - National building code The first version of the NATIONAL BUILDING CODE was published in 1970. Since the publication in 1970 version of the NATIONAL BUILDING CODE a large number of comments and useful suggestions for modifications and additions to different parts and sections of the code were received. The revised version of NATIONAL BUILDING CODE of India was therefore, brought out in 1983

13. Based on the changes effected in the: Steel Code, Masonry Code Loading Codes to update Fire Protection Requirements, three voluminous amendments were brought out to the 1983 version of the Code, Two in 1987 and the third in 1997.

14. In the last about two decades since the publication of the 1983 version of the Code, substantial further experience had been gained in the areas of the Building planning, Designing and Construction . Intensive efforts involving wide consultative process have resulted in finalization and publication of the NATIONAL BUILDING CODE OF INDIA – 2005 reflecting the state-of-the-art and contemporary applicable international practices.

15. Provisions of National Building Code Inclusion of a complete philosophy and direction for successfully accomplishing the building projects through integrated multidisciplinary approach right through conceptual stage to planning, designing, construction, operation and maintenance stages. A series of reforms in building permit process Provisions to ensure and certification of safety of buildings against natural disaster by engineer and structural engineer. Provisionfor two stage permit for high rise and special buildings. Provision for periodic renewal certificate of occupied buildings from structural, fire and electrical safety point of view.

16. Provision for empowering engineers and architects for sanctioning plans of residential buildings up to 500 m2. Inclusion of detailed town planning norms for various amenities such as educational facilities, medical facilities, distribution services, police, civil defense and home guards and fire services. Revision of parking requirements for metro and mega cities. Up- dation of special requirements for low income housing for urban areas. Inclusion of special requirements for low income housing rural habitat planning.

17. Revision of the provisions for buildings and facilities for physically challenged. Fire safety norms completely revamped through detailed provisions on fire prevention, life safety and fire protection. Inclusion of new categories of starred hotels, heritage structures and archeological monuments for fire safety provisions. Substitution of halon based fire/extinguishers fire fighting system. Promotion to new/innovative building materials/technologies.

18. Inclusion of latest provisions for earthquake resistant design and construction. Inclusion of details on multi-disaster prone districts. Inclusion of new chapter on design and construction using bamboo. Chapter on prefabricated and composite construction for speedier construction. Updation of provision of safety in construction. Complete revision of provision on building and plumbing services in line with applicable international practices. Provisions on rain water harvesting. Inclusion of new chapter to cover landscaping needs.