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梁書亭1， 朱筱俊1，張根俞2（1 東南大學(xué)土木工程學(xué)院，南京 210096； 2 中國建筑設(shè)計(jì)研究院，北京 100044）

［摘要］依據(jù)7根箱形型鋼混凝土梁的受扭性能的試驗(yàn)結(jié)果，在變形協(xié)調(diào)基礎(chǔ)上建立了開裂扭矩計(jì)算公式，采用等效鋼筋法建立了符合我國規(guī)范計(jì)算公式形式的極限扭矩計(jì)算公式。與試驗(yàn)結(jié)果對(duì)比表明，建議的公式滿足精度要求，可為箱形型鋼混凝土梁的設(shè)計(jì)提供理論依據(jù)。

［關(guān)鍵詞］型鋼混凝土；受扭性能；開裂扭矩；極限扭矩

中圖分類號(hào)：TU398文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)01-0023-03

Analysis on crack torsion and ultimate torsion of box-shaped steel reinforced concrete beams

Liang Shuting1,  Zhu Xiaojun1, Zhang Genyu2

（1 College of Civil Engineering, Southeast University, Nanjing 210096, China;

 2 China Architectural Design & Research Group, Beijing 100044, China）

Abstract:According to the experimental results of pure torsional behavior of 7 box-shaped steel reinforced concrete(BSRC) beams, computation formula of crack torsion was established based on the compatibility of deformation, and computation formula  of ultimate torsion corresponded with codes was established based on the equivalent reinforced method. Comparing with the experimental results, computation formulas can meet accuracy requirements and provide theoretical basis for the design of BSRC beams.

Keywords:steel reinforced concrete; torsional behavior; crack torsion; ultimate torsion

作者簡介：梁書亭，博士，教授，博士生導(dǎo)師， Email：stliang@seu.edu.cn。     

參考文獻(xiàn)

［1］丁海軍，梁書亭，朱筱俊，等. 箱形型鋼混凝土梁純扭性能試驗(yàn)［J］. 建筑結(jié)構(gòu)，2011，41（1）：19-22,29.

［2］HSU H L, LIANG L L. Performance of hollow composite members subjected to cyclic eccentric loading［J］. Earthquake Engineering and Structural Dynamics，2003， 32 (3): 443-461.

［3］GB50010—2002 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京:中國建筑工業(yè)出版社,2002.

［4］殷芝霖,張譽(yù),王振東. 抗扭［M］. 北京:中國鐵道出版社,1990.