Temperature control and cracking prevention in coastal thin-wall concrete structures  

作　　者：Li-xia GUO Xiao-hong BAI Ling ZHONG Sheng QIANG 

机构地区：[1]Faculty of Water Conservancy Engineering, North China University of Water Conservancy and Eleetric Power, Zhengzhou 450011, P. R. China [2]College of Planning and Architectural Engineering, Henan University of Science and Technology, Luoyang 471003, P. R. China [3]College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. China

出　　处：《Water Science and Engineering》2011年第4期455-462,共8页水科学与水工程（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50779010)

摘　　要：A three-dimensional finite element program for thermal analysis of hydration heat in concrete structures with a plastic pipe cooling system is introduced in this paper. The program was applied to simulation of the temperature and stress field of the Cao＇e Sluice during the construction period. From the calculated results, we can find that the temperaiure and stress of concrete cooled with plastic pipes are much lower than those of concrete without pipes. Moreover, plastic pipes could not be corroded by seawater. That is to say, a good effect of temperature control and cracking prevention can be achieved, which provides a useful reference for other similar nearshore concrete projects.A three-dimensional finite element program for thermal analysis of hydration heat in concrete structures with a plastic pipe cooling system is introduced in this paper. The program was applied to simulation of the temperature and stress field of the Cao＇e Sluice during the construction period. From the calculated results, we can find that the temperaiure and stress of concrete cooled with plastic pipes are much lower than those of concrete without pipes. Moreover, plastic pipes could not be corroded by seawater. That is to say, a good effect of temperature control and cracking prevention can be achieved, which provides a useful reference for other similar nearshore concrete projects.

关 键 词：coastal structures plastic pipe cooling temperature control cracking prevention steel corrosion 

分 类 号：TU375[建筑科学—结构工程] TP273[自动化与计算机技术—检测技术与自动化装置]