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摘要：
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本文推导的部分预应力砼迭合梁的设计方法,在使用阶段计算时采用考虑二次受力迭合效应的折算弯矩,在极限状态设计时采用设计弯矩,从而将迭合构件的设计转化为非迭合构件的设计,并且采用控制使用阶段预应力钢筋应力增量或非预应力钢筋应力来满足裂缝宽度控制要求。利用该方法进行部分预应力砼迭合梁的设计,可以较迅速地求出同时满足强度和裂缝宽度限制要求的预应力钢筋和非预应力钢筋的面积。
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Design method of Partially Prestressed concrete overlapped beam was introduced in this text, in the time of using this method the converted bending moment of secondary stressed overlapping effect was considered, designed bending moment was considered when design was done under a limitted state, therefore. the design of overtappd member was changed into the design of an unoverlapped member.
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基金项目：
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作者简介：
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参考文献：
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[1] 《部分预应力砼结构,设计建议》.中国铁道出版社,1985年
[2] 周旺华.装配整体梁板设计方法的研究.建筑结构学报.1982年第6期
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