大体积混凝土裂缝控制技术在国家体育场的应用

Cracking control technique of large-volume concrete in the country stadium

介绍了国家体育场大体积的裂缝控制技术。对混凝土结构裂缝控制的设计措施、材料措施和施工措施进行了综述。通过设计、科研单位的温度应力测算及优化方案,从构造设计、结构计算、材料组成、物理力学性能以及施工工艺等方面组织策划,并通过精心设计和严格执行施工方案等技术措施。

Large-volume concrete cracking control technique in the Country Stadium has been introduced.By the temperature strain calculating ＆ optimal program of scientific research institution, make use of 60-day-intensity as appraisal standard, enlarge blending material dosages, postpone aquation temperature peak time, and by technology measure such as designing meticulously and carrying out construction program strictly.