This paper takes a certain bridge as the background,discusses the current construction temperature control methods and future development trend of of mass concrete,and uses Midas finite element software to carry out numerical simulation of the application of pipe cold temperature control technology in the bridge cap construction.The results show that the construction of mass concrete without temperature control measures is easy to reach the tensile strength of concrete and crack,and the pipe cooling temperature control technology can effectively reduce the temperature stress of components.However,if the diameter of the condensing pipe,the arrangement mode,the length of a single condensing pipe and other improper design,it may exaggerate the temperature control effect of the pipe cooling technology,or even play the opposite role.The construction of mass concrete in extreme environment has a higher demand for temperature control,and a variety of temperature control technical measures are needed to achieve good results.
关键词
桥梁工程/承台施工/温度控制/水化热
Key words
bridge engineering/cap construction/temperature control/heat of hydration
维普
万方数据