| 钢筋混凝土适筋板式构件的抗扭刚度 | |
| 唐亮 ; 聂建国 ; TANG Liang ; NIE Jian-guo | |
| 2010-06-07 ; 2010-06-07 | |
| 关键词 | 钢筋混凝土构件 板式构件 抗扭刚度 纯扭 变角软化桁架模型 reinforced concrete members slabs torsional rigidity pure torsion rotating-angle softened truss model TU375 |
| 其他题名 | TORSIONAL RIGIDITY OF UNDER-REINFORCED CONCRETE SLABS |
| 中文摘要 | 在超静定结构中,受扭构件所承担的扭矩必须根据其抗扭刚度来确定。该文对适筋纯扭板式构件的抗扭刚度进行了研究。适筋纯扭板式构件的工作曲线可理想化为四段直线组成,以(A)混凝土开裂,(B)构件裂缝全面形成、按"空间桁架"模式开始工作,(C)钢筋屈服、构件达到承载力为特征点。混凝土开裂前构件的抗扭刚度按连续均质体受扭导出,采用钢筋混凝土变角软化桁架模型(RA-STM)薄膜元理论推导出构件开裂后的抗扭刚度。通过对部分试件的计算验证,计算曲线与试验曲线吻合良好,表明该方法适用于适筋纯扭板式构件全过程抗扭刚度的计算。; To determine the torsional moment for a statically indeterminate structure, the torsional rigidity of each member is required. This paper presents a procedure for calculating the torsional rigidity of under-reinforced concrete slabs. A typical torque-twist curve was idealized as a polygonal line containing 4 segments, broken at points of initial cracking, absolute cracking and reinforcement yielding. At the uncracked state, St. Venant’s theory was used. The post-cracking torsional rigidity was derived from the rotating-angle softened truss model theory. Comparisons with some published testing results demonstrated that this method can predict "load-deformation" history of under-reinforced concrete slab.; 西部交通建设科技项目(200731849405) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/47259]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 唐亮,聂建国,TANG Liang,等. 钢筋混凝土适筋板式构件的抗扭刚度[J],2010, 2010. |
| APA | 唐亮,聂建国,TANG Liang,&NIE Jian-guo.(2010).钢筋混凝土适筋板式构件的抗扭刚度.. |
| MLA | 唐亮,et al."钢筋混凝土适筋板式构件的抗扭刚度".(2010). |
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