HRB400钢筋先张法预应力吊车梁施工技术

On construction technique for HRB400 reinforced pre-tensioning prestress crane girder

分别介绍了先张法预应力混凝土的特点、适用范围、工艺原理,结合其施工流程,着重阐述了先张法施工关键工序及各工序施工要点,并提出质量与安全要求,为今后先张法预应力混凝土施工提供了参考。

The paper introduces the features, the applied scopes, the craft principle of pre-tensioning prestressed concrete by combining with its construction procedure, illustrates the key procedure and the construction points of each procedure for the pre-tensioning construction, and points out the requirements for the quality and the safety, so as to provide some reference for the pre-tensioning prestressed concrete construction in fu- turo.