RESEARCH ON CONSTRUCTION TECHNOLOGY OF TWICE PRESTRESSED COMPOSITE BEAMChinese Full Text
Zhou Yadong;Shao Xudong;School of Civil Engineering,Hunan University;
Abstract: It was introduced basic principle and characteristics of twice prestressed composite beam,and analyzed the problems of the existing construction technology of twice prestressed composite beam,namely,too many processes are involved in constructing the twice prestressed composite beam,and some of the processes such as fabricating and installing the formworks,pouring concrete,tensioning and anchoring prestressed tendons are rather difficult. In order to solve these construction problems,two patent products were developed and proposed,one is double sleeve prestressed tendon casing connector which can easily realize the connection of prestressed tendon casing in first term concrete and that in second term conctete,the other is double sleeve reinforced connector which can easily realize the connection of reinforcement in first term concrete and that in second term concrete. These two patent products can effectively solve the two existing problems of construction technology,improve the technical level of twice prestressed composite beams.
Keywords：
twice prestressed composite beam; construction technology; double sleeve prestressed tendon casing connector; double sleeve reinforced connector;
- DOI：
10.13204/j.gyjz201401023
- Series：
- Subject：
- Classification Code：
TU757
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