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钢骨高强混凝土受弯构件非线性分析
引用本文:慕光波,王连广. 钢骨高强混凝土受弯构件非线性分析[J]. 东北大学学报(自然科学版), 2006, 27(5): 571-574. DOI: -
作者姓名:慕光波  王连广
作者单位:东北大学资源与土木工程学院,辽宁沈阳,110004;东北大学资源与土木工程学院,辽宁沈阳,110004
摘    要:为进一步研究钢骨高强混凝土受弯构件的工作性能,通过基于平截面假定的有限条带法,对其在单调荷载作用下的整个受力过程进行分析,计算得到弯矩与曲率、荷载与变形的关系曲线,以及混凝土强度、含钢率对荷载-变形的影响曲线·研究表明,当外荷载为极限荷载的14%左右时,钢骨高强混凝土构件受拉区混凝土开裂;在相同荷载条件下,钢骨高强混凝土构件的延性比钢骨普通混凝土构件的有所降低;在相同变形条件下,随着含钢率的增加,钢骨高强混凝土受弯构件的承载能力得到显著提高·

关 键 词:钢骨  高强混凝土  受弯构件  有限条带法  非线性分析  本构模型
文章编号:1005-3026(2006)05-0571-04
收稿时间:2005-07-08
修稿时间:2005-07-08

Nonlinear Analysis of Flexural Members of Steel Reinforced High-Strength Concrete
MU Guang-bo,WANG Lian-guang. Nonlinear Analysis of Flexural Members of Steel Reinforced High-Strength Concrete[J]. Journal of Northeastern University(Natural Science), 2006, 27(5): 571-574. DOI: -
Authors:MU Guang-bo  WANG Lian-guang
Affiliation:(1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China
Abstract:To investigate further the working performance of flexural members of steel-reinforced high-strength concrete under monotonic loading,a full-range nonlinear analysis is made through the finite ribbon method based on flat section assumption. By computation,the moment-curvature and load-deformation relationships are obtained,as well as those among concrete strength,volumetric percentage of steel,load and deformation of a flexural member. It is obvious that a concrete member cracks in tensional area as the external load comes to 14% of its ultimate load or so. On the same loading condition the ductility of the member is less than that of conventional steel-reinforced concrete members. However,on the same deformation condition,the bearing capacity of the flexural members of steel-reinforced high-strength concrete increase obviously with the increasing volumetric percentage of steel.
Keywords:steel reinforcement  high-strength concrete  flexural member  finite ribbon method  nonlinear analysis  constitutive model
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