Experimental study and numerical simulation of temperature gradient effect for steel-concrete composite bridge deck

被引：14

作者：

Wang, Da ^{[1
]}

Tan, Benkun ^{[1
]}

Wang, Xie ^{[1
]}

Zhang, Zhenhao ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Civil Engn, Yuntang Campus,960,2nd Sect,Wanjiali South Rd, Changsha 410114, Peoples R China

来源：

MEASUREMENT & CONTROL | 2021年 / 54卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

Steel-concrete composite bridge deck; vertical temperature gradient; FE method; thermal stress; experimental study; GIRDER;

D O I：

10.1177/00202940211007166

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The temperature distribution of the bridge and its thermal effect has always been an important issue for researchers. To investigate the temperature distribution and thermal stress in the steel-concrete composite bridge deck, a 1:4 ratio temperature gradient effect experimental study was carried out in this paper. First, a set of experimental equipment for laboratory temperature gradient loading was designed based on the principle of temperature gradient caused by solar radiation, the temperature gradient obtained from the measurements were compared with the specifications and verified by the FE method. Next, the loading of the steel-concrete composite deck at different temperatures was performed. The thermal stress response and change trend of the simply supported and continuously constrained boundary conditions under different temperature loads were analyzed. The experimental results show that the vertical temperature of steel-concrete composite bridge deck is nonlinear, which is consistent with the temperature gradient trend of specifications. The vertical temperature gradient has a great influence on the steel-concrete composite bridge deck under different constraints, and the extreme stress of concrete slab and steel beam is almost linear with the temperature gradient. Finally, some suggestions for steel-concrete composite deck design were provided based on the research results.

引用

页码：681 / 691

页数：11

共 27 条

[1] Experimental and finite element investigation of temperature distributions in concrete-encased steel girders [J].