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784 - IS 784:2001 c(h n n Ilw WIciwf Indian Standard...

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IS 784:2001 (h c n . WIciwf n Ilw ) Indian Standard PRESTRESSED CONCRETE PIPES (INCLUDING SPECIALS) — SPECIFICATION (Second Revision ) ICS 23.040,50; 91.100.30 0 BIS 2001 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 Februaty 2001 Price Group 10
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Cement Matrix Products Sectional Committee, CED 53 FOREWORD This Indian Standard (Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Cement Matrix Products Sectional Committee had been approved by the Civil Engineering Division Council. This standard was published in 1959 and subsequently revised in 1978 to introduce prestressed concrete cylinder pipes, requirements of fittings, provision of more details on design criteria for the pipes, etc. This standard lays down the requirements of prestressed concrete pipes primarily used for the conveyance of water and sewerage and specials for use with them. Two types of prestressed concrete pipes are covered by this specification, namely, prestressed concrete cylinder pipes and prestressed concrete non-cylinder pipes, This second revision incorporates number of modifications, the most significant of them being: a) modifications in design and other aspects, b) inclusion of typical worked out examples of design, c) inclusion of detailed inspection procedure, and d) increase in range of diameters of pipes. In the formulation of this standard, assistance has been derived for EN 642:1994 Prestressed Concrete Pressure Pipes, Cylinder and Non-Cylinder, European Committee for Standardization (CEN). The composition of the technical committee responsible for formulation of this standard is given at Annex K. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2:1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
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IS 784:2001 Indian Standard PRESTRESSED CONCRETE PIPES (INCLUDING SPECIALS) — SPECIFICATION (Second 1 SCOPE This standard covers the requirements of prestressed concrete pipes (including specials) with nominal internal diameter in the range of 200 mm to 2500 mm (see Note under Table 1), in which permanent internal stresses are deliberately introduced by tensioned steel to the desired degree to counteract the stresses caused in pipe under service. 2 REFERENCES The standards listed in Annex A contain provisions which through reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreement based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated in Annex A.
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