原文传递
Unified Softened Membrane Model for Torsion in Hollow and Solid Reinforced Concrete Members: Modeling Precracking and Postcracking Behavior
| 题名： | Unified Softened Membrane Model for Torsion in Hollow and Solid Reinforced Concrete Members: Modeling Precracking and Postcracking Behavior |
| 其他题名： | Jeng,C.-H.,Peng,S.-F.,and Chiu,H.-J.(2014b)."A new apparatus and method for torsion test of large-size reinforced concrete beams."J.Test.Eval.,42(1),181–195. |
| 正文语种： | 英文 |
| 作者： | Chyuan-Hwan Jeng |
| 关键词： | Cracking;Torque;Torsion;Twist;Stress;Strain;Strain gradient;Stress-strain curve;Shear;Softened membrane model (SMMT);Concrete and masonry structures |
| 摘要： | The softened membrane model for torsion (SMMT) was the first rational theory to incorporate the precracking and postcracking torsional behavior of solid RC members. A series of theoretical and experimental investigations were conducted in Taiwan to extend the SMMT to hollow RC members. This paper proposes a generalized SMMT based on the results of these investigations, determines the constitutive relationships of concrete for thin-and thick-walled hollow RC members, and develops a unified SMMT theory for hollow and solid RC members. The proposed SMMT for hollow RC members (SMMT-H) is also employed to derive a rational Tcr and θcr formula for such members, completing a unified set of noniterative rational Tcr-θcr formulas for both hollow and solid RC members. In the experiment, the proposed SMMT-H analyzed the torsional responses of the specimens reasonably well, and predicted the cracking points and precracking torque-twist curves almost perfectly. The proposed rational formula for hollow RC members, which accurately predicted the Tcr and θcr of the specimens, is an almost-perfect simplification of the SMMT-H in terms of Tcr and θcr. A numerical example illustrating the simple application of this formula is presented. |
| 出版年： | 2015 |
| 论文唯一标识： | P-26Y2015V141N10010 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001212 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 141 |
| 期： | 10 |
| 页码： | 88-107 |
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