Abstract

Pre-stressed reaction wall is an important test facility in structure laboratory.Reaction wall will bear large static and dynamic loads when working, so pre-stressed concrete structure is often used. A model of micro-concrete pre-stressed reaction wall is made in the test in order to insure tension quality of steel strand of reaction wall. Proposed 4 different tension schemes of reaction wall pre-stress rebar, and a comparative study on the variety trend and distribution of strain on reaction wall in the 4 different schemes.The experimental results show that the best schemes of tension pre-stress rebar is:use the wall cross-section center of gravity as the symmetric point, tension symmetrical up and down from central to outside.And we suggest that two times or supplement tension methods be use to stretching steel strand of reaction wall.

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