IS 875

IS 875
Title	IS 875

IS 875

IS 875 is an Indian Standard code used for prescribing procedures and loads for the design of buildings and other structures; it interfaces with codes and institutions that shape Bureau of Indian Standards practice and aligns with international norms from bodies such as the International Organization for Standardization, British Standards Institution, and American Society of Civil Engineers. The standard is employed by practitioners in projects overseen by authorities like the Central Public Works Department, State Public Works Departments, National Building Code of India, and firms responding to procurement from entities including the Indian Railways, Ministry of Housing and Urban Affairs, and private developers such as DLF Limited and Tata Housing.

Overview

IS 875 provides codified guidance on imposed, wind, snow, and other loads for the structural design of buildings and civil works, connecting to regulatory frameworks enforced by agencies like the Municipal Corporation of Delhi, Brihanmumbai Municipal Corporation, Kolkata Municipal Corporation, and professional bodies like the Indian Concrete Institute and Institution of Engineers (India). Its application intersects with landmark projects and organizations such as Bharat Heavy Electricals Limited, National Thermal Power Corporation, L&T Construction, Gujarat International Finance Tec-City, and international projects influenced by World Bank and Asian Development Bank financing standards.

Scope and Objectives

The standard’s scope covers imposed loads, snow loads, wind loads, and special loads for buildings, serving clients from Reserve Bank of India branches to campuses of Indian Institute of Technology Bombay, Indian Institute of Science, and corporate headquarters like Infosys, Wipro, and Reliance Industries developments. Objectives include harmonizing with structural design practices used by consulting firms such as Arup Group, AECOM, Mott MacDonald, aligning with methodologies referenced in textbooks by authors linked to University of Cambridge, Massachusetts Institute of Technology, and standards committees convened by Bureau of Indian Standards and technical committees influenced by the Indian Roads Congress.

Load Definitions and Classification

Load definitions classify dead, imposed, wind, and snow actions, referencing scenarios encountered in projects like Delhi Metro, Mumbai Metro, Kolkata Metro, and construction of ports by Mumbai Port Trust and Jawaharlal Nehru Port Trust. The classification system is applied in analyses for structures designed by firms such as Shapoorji Pallonji Group, Tata Projects, and Hindustan Construction Company, and informs decisions made during planning reviews by agencies including National Highway Authority of India and Airport Authority of India. Typical load categories are used when coordinating with standards like Eurocode, ASCE 7, and guidelines issued by Indian Space Research Organisation for specific installations.

Design Requirements and Calculation Methods

Design requirements prescribe load combinations and partial safety factors used by structural engineers collaborating with academic departments at IIT Madras, IIT Delhi, IIT Kharagpur, and consultancy groups participating in projects for Oil and Natural Gas Corporation and Steel Authority of India Limited. Calculation methods include empirical, analytical, and probabilistic approaches reflecting practices in reports by Central Water Commission, design manuals produced for Bharat Sanchar Nigam Limited facilities, and comparative studies with British Standards and American Concrete Institute guidance. Procedures for wind loading, dynamic analysis, and influence coefficients inform design of tall buildings like those by DLF, Prestige Group, and portside cranes at Visakhapatnam Port.

Implementation and Compliance

Implementation relies on approvals from statutory bodies such as the Town and Country Planning Department of various states, certifications by structural consultants registered with Council of Architecture, and audits by third-party inspectors from firms like Bureau Veritas and TUV Rheinland. Compliance is evaluated during project milestones for infrastructure programs funded by Ministry of Road Transport and Highways, Ministry of Railways, and multilateral-financed urban renewal schemes involving the Japan International Cooperation Agency and World Bank. Nonconformance can trigger enforcement actions through municipal regulatory frameworks exemplified by rulings from the Delhi Development Authority and dispute resolution in tribunals influenced by jurisprudence involving Supreme Court of India decisions on building safety.

Updates and Revisions

Revisions to the standard are processed through committees at the Bureau of Indian Standards with inputs from professional organizations including the Indian Society of Structural Engineers, Indian Roads Congress, and academic stakeholders from universities like IIT Roorkee and Anna University. Past and prospective updates consider comparative studies with Eurocode, ASCE 7, Japanese Industrial Standards, and recommendations arising from failure investigations such as post-event analyses of cyclones affecting regions administered by the India Meteorological Department and structural performance reviews after events involving entities like National Disaster Management Authority.

Category:Indian Standards