Evaluation of compressive arch action of reinforced concrete beams and development of design method

doi:10.1016/j.engstruct.2019.04.083

CQUET-IR

	Evaluation of compressive arch action of reinforced concrete beams and development of design method
	Wang, Shan 1,2; Peng, Jun 3; Kang, Shao-Bo 1,2
	2019-07-15
发表期刊	ENGINEERING STRUCTURES
ISSN	0141-0296
EISSN	1873-7323
卷号	191 页码:479-492
摘要	This paper describes a study on the compressive arch action of reinforced concrete beams with various levels of horizontal restraints. An analytical model is proposed based on Park's assumption, in which the tension-stiffening effect of steel reinforcement and its slip relative to beam-column joints are considered. The model is calibrated by experimental results of beam-column sub-assemblages and frames subject to column removal scenarios. The model is calibrated by experimental results of beam-column sub-assemblages and frames subjected to middle column removal scenarios. A parametric study is conducted to shed light on the effects of horizontal restraints on the axial compression force of beams and the strain of compressive reinforcement. Analytical results suggest that the compressive reinforcement may not yield under compressive arch action, and its strain varies with the axial compression force in the beam. To develop a simplified design method, the relationship between the axial compression force and the strain of compressive reinforcement is established through the theoretical axial force-bending moment interaction diagram. An explicit expression for axial compressive strain is derived from force equilibrium and compatibility and incorporated in the design method to evaluate the compressive arch action capacity and associated axial compression force of reinforced concrete beams. Comparisons with existing experimental results in the available literature and other models suggest that the design method yields reasonably accurate estimations of critical parameters related to compressive arch action.
关键词	Reinforced concrete beams Compressive arch action Analytical model Tension-stiffening effect Slip of tensile reinforcement Simplified design method
DOI	10.1016/j.engstruct.2019.04.083
收录类别	SCIE
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:000471083200035
出版者	ELSEVIER SCI LTD
原始文献类型	Article
出版地	OXFORD
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3621
专题	重庆电子科技职业大学
作者单位	1.Chongqing Univ, Key Lab New Technol Construct Cities Mt Area, Minist Educ, Chongqing 400045, Peoples R China; 2.Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China; 3.Chongqing Vocat Inst Engn, Dept Civil Engn & Architecture, Chongqing 402260, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shan,Peng, Jun,Kang, Shao-Bo. Evaluation of compressive arch action of reinforced concrete beams and development of design method[J]. ENGINEERING STRUCTURES,2019,191:479-492.
APA	Wang, Shan,Peng, Jun,&Kang, Shao-Bo.(2019).Evaluation of compressive arch action of reinforced concrete beams and development of design method.ENGINEERING STRUCTURES,191,479-492.
MLA	Wang, Shan,et al."Evaluation of compressive arch action of reinforced concrete beams and development of design method".ENGINEERING STRUCTURES 191(2019):479-492.