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本文在介绍预弯复合梁的工作原理及制作工艺的基础上,论述了预弯复合梁的自身结构特点及其优越性.文中将日本对预弯复合梁所进行的研究归纳成:预弯复合梁材料特性与施工工艺的试验研究;预弯复合梁力学特性的试验研究;实桥的静、动力试验等三部分进行介绍,同时对预弯复合梁的设计施工规范的形成、演变过程作了概要说明,然后对预弯复合梁在日本的应用情况进行了概述,通过已建桥梁及楼房有关参数的统计分析,得出了预弯复合梁桥及预弯建筑梁的常用跨度、高跨比等参数的取值范围,可供试验研究及设计人员参考.
In this paper, based on the introduction of working principle and manufacturing process of pre-bent composite beam, this paper discusses its own structural characteristics and advantages of pre-bent composite beam.The article summarizes the research on pre-bent composite beam in Japan: pre-bending composite Beam material properties and construction technology of experimental study; experimental study of mechanical properties of pre-bent composite beam; static and dynamic test of the real bridge and other three parts are introduced, at the same time, the formation and evolution of precast bending design and construction specifications made The paper summarizes the application of pre-bent composite beams in Japan. Based on the statistical analysis of the related parameters of existing bridges and buildings, it is concluded that the common span of pre-bent composite beams and pre-bent beams, The range of other parameters for experimental research and designer reference.