ISO INTERNATIONAL STANDARD 9882 First edition 1993-12-15 Performance standards in building - Performance test for precast concrete floors Behaviour under non-concentrated load Normes de performance dans le batiment Essai de performance des planchers prefabriques en beton - Comportement sous charge non concentree ISO Referencenumber ISO 9882:1993(E) No reproduction or networking permited without lice se from IHS Not for Resale ISO 9882:1993(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work technical committees. Each member body interested in a subject for and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 9882 was prepared by Technical Committee ISO/TC 59, Building construction, Sub-Committee SC 6, Structure, envel ope, internal subdivision-Joints. ISO 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56· CH-1211 Geneve 20 ·Switzerland Printed in Switzerland ii ational Organization for Standardizatior No reproduction or networking pemited without license from IHS Provided by IHS un Nol for Resale ISO 9882:1993(E) INTERNATIONAL STANDARD Performance standards in building - Performance test for precast concrete floors Behaviour under non-concentrated Iload Scope load; this load is noted as the non-rupture load if the 1 floor actually does not rupture under it. This International Standard defines test procedures for determining the mechanical performance of pre- cast concrete fioors made of a single piece, or made 2.2 Long-term tests up of precast joists (reinforced concrete or precast concrete) completed with filler blocks and concrete The load is applied progressively until it has reached poured in situ. The parameters measured are: the imposed toad. It is then maintained constant for at least six months. the maximum load, by progressive loading, which The deformations are measured at regular intervals does not result in collapse, throughout the period. the instantaneous and deferred deformations un der imposed load, and 3 Test machine the maximum load which the floor or its constitu- ent precast elements can support without collapse Any press which develops a force sufficient to break during its construction. the floor being tested, permitting application of this This International Standard applies to the testing of force to the test piece according to one or two lines floors designed to support loads of less than perpendicular to the span, may be used as a test 5 000 Nm- and having spans of less than 12 m. machine. If the application is carried out on two lines. they are usually at 1J4 of the filler block or at 1/3 of the span. 2 ! Test principles The force shall be uniformly distributed over the width of the test piece through the use of a hinge. Test pieces made up of floor sections or of precast The forces applied shall be measured with an accu- floor elements and resting on two or three supports racy of ± 5 %. are subjected to increasing loads (instantaneous tests) or long-term tests. The supports shall not be affected by settling greater than 2 mm. 2.1 Instantaneous tests The test piece shall be seated on supports separated from the rollers by a distribution plate. The floor is loaded by hydraulic actuators giving a Whenthetestis carriedout onthreesupports,the constant load. This load is increased in steps. The in- upper surfaces (or arrises) of these