高温下混凝土预制梁施工技术及其应用

High Temperature Concrete Precast Beam Construction Technology and its Application

随着经济、技术的发展,混凝土预制梁在目前的交通道路建设项目中的应用已较为普遍。在高温条件下,混凝土预制梁受施工环境的高温影响,容易出现裂缝及强度削弱等现象,这在一定程度上制约了混凝土预制梁的应用。本文从分析了混凝土预制梁在高温条件下的受力机理,对混凝土裂缝及混凝土结构的强度削弱现象的成因进行了分析,并给出了一些解决措施。

With the development of economy and technology, the application of precast concrete beams in the current traffic road construction projects have become more common. At high temperatures, precast concrete construction environment affected by high temperature, prone to cracks and weakens the strength of other phenomena, which restricts the use of precast concrete beams to a certain extent. This paper analyzes the stress mechanism of precast concrete beams under high temperature conditions, the causes of cracks on the strength of concrete and concrete structures weaken phenomenon is analyzed, and gives some solutions.