IS 800

IS 800
Title	IS 800
Subject	Structural steel code
Jurisdiction	India
First pub	2007
Previous	IS 800:1984
Governing body	Bureau of Indian Standards

IS 800

IS 800 is an Indian Standard code providing rules for the design of steel structures, issued by the Bureau of Indian Standards, developed with contributions from committees including experts from Indian Institute of Science, Indian Institute of Technology Bombay, Central Public Works Department, and industry stakeholders such as Tata Steel, Steel Authority of India Limited, and Larsen & Toubro. The standard aligns with international practice represented by documents such as the Eurocode 3, AISC Specification, and BS 5950, and interacts with national documents like IS 875 and IS 1893. It serves designers, contractors, and regulators working on projects for institutions such as National Highways Authority of India, Indian Railways, and municipal authorities in New Delhi and Mumbai.

Overview

IS 800 establishes procedures for strength, serviceability, and stability of steel members and structures, referencing principles found in Limit state design approaches used by Eurocode 3 and AISC Specification. It covers topics including material properties for steels produced by firms like Tata Steel, Jindal Steel and Power, and SAIL, connection design practices akin to approaches in Warren truss and Pratt truss detailing, and fabrication tolerances familiar to contractors such as Larsen & Toubro and GMR Group. The code is intended for application in projects by agencies including Central Public Works Department, Indian Railways, and state public works departments in Karnataka and Tamil Nadu.

Scope and Applicability

IS 800 applies to the design of steel structures for buildings, bridges, towers, and industrial plants commissioned by entities like National Highways Authority of India, Bharat Petroleum, and Steel Authority of India Limited. It interfaces with loading standards such as IS 875 (Part 1), IS 875 (Part 2), and seismic provisions in IS 1893, and is used alongside fabrication codes like IS 823 and welding standards such as IS 817. The code is adopted by consulting firms including RITES, AECOM, and Arup for projects involving clients like BHEL, Adani Group, and municipal corporations in Kolkata and Chennai.

Design Specifications and Requirements

The standard prescribes limit state criteria for ultimate and serviceability conditions, drawing methodological parallels to Limit state design in Eurocode 3 and stability concepts discussed in Euler buckling and Timoshenko beam theory. It defines member classification, section properties for rolled sections produced by Tata Steel and Jindal Steel, and design procedures for compression, flexure, shear, and combined actions, comparable to methodologies in AISC Steel Construction Manual and BS 5950. Design of connections, including bolted and welded joints, references practices used in projects by Larsen & Toubro and research at IIT Madras and IIT Kanpur, and establishes partial safety factors akin to those in Eurocode documents and BS EN series standards.

Materials and Construction Practices

IS 800 specifies material grades, mechanical property limits, and testing requirements for structural steels sourced from manufacturers such as Tata Steel, JSW Steel, and SAIL, and refers to testing techniques from laboratories like those at IIT Kharagpur and CSIR-National Metallurgical Laboratory. Welding procedures align with qualifications described in IS 823, electrode standards such as IS 814, and studies from institutions like Indian Institute of Science. Fabrication tolerances, surface treatment recommendations, and corrosion protection methods used by contractors like Larsen & Toubro and Tata Projects are included, with reference to protection techniques adopted in projects for Oil and Natural Gas Corporation and Indian Oil Corporation.

Load Considerations and Analysis

Design loads are defined in coordination with IS 875 parts on dead loads, live loads, wind loads, and imposed loads used in projects by agencies such as National Highways Authority of India and Indian Railways, and seismic actions referenced from IS 1893 applied to structures in seismic zones including Himalayas and Kutch. Analysis methods include elastic and plastic approaches consistent with research at IIT Bombay and IIT Roorkee, second-order effects covered in studies by Prof. Gajanan Kharadkar and simulation practices employed by firms like Arup and AECOM, and dynamic considerations similar to treatments in Eurocode 3 and AISC guidance for vibration-sensitive facilities such as those at Bhabha Atomic Research Centre.

Compliance, Inspection, and Certification

Compliance with IS 800 is audited by regulatory bodies such as the Bureau of Indian Standards and enforced in procurement by agencies like Central Public Works Department and National Highways Authority of India, with certification processes managed by testing laboratories including CSIR-National Metallurgical Laboratory and accredited bodies under National Accreditation Board for Testing and Calibration Laboratories. Inspection practices draw on techniques used by inspectors from Indian Boiler Regulation and quality assurance systems implemented by corporations like Tata Projects and Larsen & Toubro, while dispute resolution and technical arbitration frequently involve experts from IIT Delhi and professional societies such as the Institution of Engineers (India).

Category:Indian standards