用等效溫度荷載法直接計算預應(yīng)力混凝土結(jié)構(gòu)的次內(nèi)力
周 江
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（浙江綠城建筑設(shè)計有限公司，杭州 310007）[摘要] 目前設(shè)計預應(yīng)力混凝土超靜定結(jié)構(gòu)常用等效荷載法，此法計算次彎矩需要由綜合彎矩減去主彎矩得到，然后通過次彎矩分布得到次剪力，計算繁瑣。本文從次彎矩產(chǎn)生的原理出發(fā)，利用子結(jié)構(gòu)思想，提出通過施加等效溫度荷載直接計算預應(yīng)力混凝土結(jié)構(gòu)次內(nèi)力的方法，并在分析軟件上進行了驗證。[關(guān)鍵詞] 預應(yīng)力混凝土結(jié)構(gòu); 等效溫度荷載; 次內(nèi)力中圖分類號：TU375 文獻標識碼：A 文章編號：1002-848X(2013)S2-0572-04作者簡介：周江，工學碩士，助理工程師，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
