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为了保证建筑结构具有足够的可靠度,除设计计算外,还应对所采用的原材料性能、施工质量、使用和维护等方面进行控制,其中砼及其制品在基础、主体、屋面等分部工程,特别是在框架、排架结构工程的柱、梁、板中大量采用,因此,结构的可靠度直接受到砼强度的影响。一旦砼强度达不到设计和施工验收规范以及质量验评标准的要求,严重者要返工重做,造成大量人力、物力的浪费和延误工期;轻者需采取加固处理。
In order to ensure that the building structure has sufficient reliability, in addition to the design calculations, it is also necessary to control the properties of the raw materials used, construction quality, use and maintenance, etc., in which the concrete products, such as foundations, main bodies, roofs, etc., In particular, it is used in a large number of columns, beams, and plates in the framework and structural design of the trusses. Therefore, the reliability of the structure is directly affected by the enthalpy strength. Once the concrete strength fails to meet the requirements of the design and construction acceptance standards and the quality assessment standards, serious people must rework and rework, resulting in a lot of manpower and material waste and delays in the construction period; lighter people need to be reinforced.