QQ客服 官方微博 反馈留言

	Time dependent prestress losses due to creep and shrinkage in high-strength lightweight concrete beams
	Ye Lieping ; Sun Hailin ; Ding Jiantong
	2010-05-11 ; 2010-05-11
关键词	Experimental/ aggregates (materials) beams (structures) concrete creep finite element analysis lightweight structures losses shrinkage stress effects/ time dependent prestress losses high-strength lightweight concrete beams aggregate concrete beams low-strength lightweight concrete beam creep coefficients finite element method shrinkage characteristic 1 year/ A8140L Deformation, plasticity and creep A4630J Viscoelasticity, plasticity, viscoplasticity, creep, and stress relaxation A0260 Numerical approximation and analysis E2110A General shapes and structures E2180B Plasticity (mechanical engineering) E0210L Numerical analysis/ time 3.2E+07 s
中文摘要	Five high-strength light-weight aggregate concrete (LWAC) beams, one low-strength LWAC beam and one normal concrete beam were experimented on time dependent prestress losses, which lasted for one year. From the test results it was observed that early shrinkage of LWAC was lower and final shrinkage was higher than the relevant one of normal concrete with same strength. It was also found that creep coefficients of LWAC were lower than that of normal concrete and prestress losses in high-strength LWAC beams were higher than that in normal concrete beams. A finite element method to account for prestress losses is presented and the results agree with the experimental results well. The measured prestress losses are compared to several recommendations which calculate prestress losses due to shrinkage and creep of concrete. A practical method for calculation of prestress losses is suggested.
语种	中文 ; 中文
出版者	Editorial Dept. J. Southeast Univ. ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/27102]
专题	清华大学
推荐引用方式 GB/T 7714	Ye Lieping,Sun Hailin,Ding Jiantong. Time dependent prestress losses due to creep and shrinkage in high-strength lightweight concrete beams[J],2010, 2010.
APA	Ye Lieping,Sun Hailin,&Ding Jiantong.(2010).Time dependent prestress losses due to creep and shrinkage in high-strength lightweight concrete beams..
MLA	Ye Lieping,et al."Time dependent prestress losses due to creep and shrinkage in high-strength lightweight concrete beams".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。