土木外文文献及译文---简支梁布局

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1、 本科毕业设计 外文文献及译文 文献、资料题目：Simple Beam Layout 文献、资料来源：网络 文献、资料发表（出版）日期： 院 （部） ： 管理工程学院 专 业： 信息管理与信息系统 班 级： 姓 名： 学 号： 指导教师： 翻译日期： 1 外文文献：外文文献： Simple Beam Layout The layout of a simple prestressed-concrete beam is controlled by two critical sections: the maximum moment and the end sections. After these

2、sections are designed, intermediate ones can often be determined by inspection but should be separately investigated when necessary. The maximum moment section is controlled by two loading stages, the initial stage at transfer with minimum moment MG acting on the beam and the working-load stage with

3、 maximum design moment MT. The end sections are controlled by area required for share resistance, bearing plates, anchorage spacings, and jacking clearances. All intermediate sections are designed by one or more of the above requirements, depending on their respective distances from the above contro

4、lling sections. A common arrangement for posttensioned members is to employ some shape, such as I or T, for the maximum moment section and to round it out into a simple rectangular shape near the ends. This is commonly referred to as the end block for posttensioned members. For pretensioned members, produced on a long line process, a uniform I, double-T, or cored section is employed throughout, in order to facilitate production. The design for individual sections having been explained