摘要
大体积混凝土结构裂缝主要来源于温差变形,即混凝土浇筑后因里表温度差异而发生体积不均匀变化造成开裂。因此,对于大体积混凝土结构裂缝的控制,主要以减小构件里表温差、抑制温度应力为手段,文中通过管理和技术措施的共同实施,降低混凝土内部温度,提升表面温度,最终实现温度裂缝的有效控制。
Practice has shown that the cracks in large volume concrete structures mainly come from temperature difference deformation,which is caused by uneven changes in volume due to differenceisn internal surface temperature after concrete pouring.Therefore,the control of cracks in large volume concrete structures is mainly aimed at reducing the surface temperature difference of components and suppressing temperature stress.Through the joint implementation of management and technical measures,the aim is to reduce the internale tmperature of concrete,improve the surface temperature,and ultimately achieve effective control of temperature cracks.
作者
白文祥
Bai Wenxiang(Shaanxi Road and Bridge Group Co.Ltd.,Xi'an,Shaanxi 710000)
出处
《江西建材》
2023年第3期258-260,共3页
Jiangxi Building Materials
关键词
桥梁承台
大体积结构
温度裂缝
温度应力
Bridge bearing platform
Large volume structure
Temperature cracks
Temperature stress
作者简介
白文祥(1987-),男,陕西西安人,本科,工程师,主要研究方向为市政道路或桥梁。
