EXPERIMENTAL RESEARCH ON RETARD-BONDED PRESTRESSED CONCRETE BEAMS

被引：0

作者：

Zhou, Xian-Yan ^{[1
]}

Feng, Xin ^{[1
]}

Cao, Guo-Hui ^{[1
]}

机构：

[1] Cent S Univ Forestry & Technol, Coll Civil Engn & Mech, Changsha 410004, Hunan, Peoples R China

来源：

4TH INTERNATIONAL SYMPOSIUM ON LIFETIME ENGINEERING OF CIVIL INFRASTRUCTURE | 2009年

关键词：

Retard-bonded; retarding mortar; prestressed concrete beam; experimental research;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Retard-bonded post prestressed concrete is a new distinctive prestressed type. It absorbs the good parts and abandons unfavorable parts of un-bonded and bonded in traditional post prestressed concrete. Based on a large number of orthogonal tests and theoretical analyses, a kind of super-retarding mortar which meets the requirements of retard-bonded prestressed concrete is prepared and used for the retard-bonded post prestressed concrete system. The prestressed camber, as well as strain variations of concrete and prestress losses of retard-bonded post prestressed concrete beams were studied through the experiment of 4 beams. The experimental results were compared with the theoretical results, by which the principle and law of prestress losses of retard-bonded post prestressed concrete beams were obtained. It provides the reference for the actual project application of the new retard-bonded prestressed concrete system.

引用

页码：214 / 219

页数：6

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