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绝大部分(大约90％)工厂制造的普通钢筋混凝土和预应力混凝土梁都要进行旨在缩短达到设计强度时间的蒸气养生。这种方法有优点,但当处理大尺寸构件时也会有缺点,主要就是在制品横截面的某个范围会出现拉应力。这种情况需要从审查工艺过程入手,对蒸气养生速率的有关参数要加以规定。考察一下梁的制作过程就会发
The vast majority (about 90%) of ordinary reinforced concrete and prestressed concrete girders manufactured by the mill are steam-cured to reduce the time to design strength. This method has advantages, but it also has disadvantages when dealing with large-sized components, mainly due to tensile stresses occurring over a range of product cross-sections. This situation needs to start with the review of the process, the parameters of steam health rate to be specified. Inspect the production process of the beam will send