用等效温度荷载法直接计算预应力混凝土结构的次内力
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（浙江绿城建筑设计有限公司，杭州 310007）[摘要] 目前设计预应力混凝土超静定结构常用等效荷载法，此法计算次弯矩需要由综合弯矩减去主弯矩得到，然后通过次弯矩分布得到次剪力，计算繁琐。本文从次弯矩产生的原理出发，利用子结构思想，提出通过施加等效温度荷载直接计算预应力混凝土结构次内力的方法，并在分析软件上进行了验证。[关键词] 预应力混凝土结构; 等效温度荷载; 次内力中图分类号：TU375 文献标识码：A 文章编号：1002-848X(2013)S2-0572-04作者简介：周江，工学硕士，助理工程师，Email：tmgczj01@126.com。Directly calculating secondary interior forces of pre-stressed concrete structures with equivalent temperature load methodZhou Jiang(Greentown Architectural Design, Hangzhou 310007, China)Abstract: The equivalent load method is commonly used in designing statically indeterminate pre-stressed concrete structure, this method can’t avoid the calculations of resulting moments and the main moments to get the secondary moment, and then it’s also tedious to calculate the secondary shear on the basis of the secondary moment. Based on the source of secondary moment and the thinking of sub-structure, equivalent temperature load method which can directly calculate secondary interior forces of pre-stressed concrete structures is presented in this paper, and it’s verified in analysis software.Keywords: pre-stressed concrete structures; equivalent temperature load; secondary interior forces
