摘要
应用有限单元法模拟某工程箱梁的施工过程,计算了两种加热养护温度下的混凝土温度场和应力场,指出在恶劣气候条件下,加热养护是必要的但温度不宜过高,同时建议在箱梁两端设置通风口,以防止箱梁降温时在内外表面产生过大的温差。
This paper simulated the construction course of a box-beam by FEM, and calculated temperature and stress fields on two conditions of temperature maintained by heating. Furthermore, it is pointed out that temperature maintained by heating is necessary according to the academic calculation for concrete engineering but should not be much too high in bad weather. It is also advised that setting ventilating hole on verge of box-beam to avoid producing too much difference in temperature.
出处
《市政技术》
2007年第4期256-258,共3页
Journal of Municipal Technology
关键词
有限单元法
温度控制
通风口
加热养护
FEM
temperature controlling
ventilating hole
maintaining by heating
