【摘要】 对巴东长江大桥承台大体积混凝土施工时的内外温度进行了监测和分析,分析了各浇筑层中心温度的变化规律及温度特征值,论述了大体积混凝土温度特性与温度控制的必要性,并提出了从原材料、施工方法、养护条件等几个方面防止裂缝产生的措施,实践证明这些措施是有效的。更多还原

【Abstract】 The outside and inside temperatures of mass concrete for the base slab of the Badong Yangtze River Bridge,have been monitored and analyzed in its construction time.And the temperature variation law of each laying center and temperature characteris- tics are also analyzed.The necessity of temperature control for mass concrete is discussed.Some measures for preventing cracking due to original materials,construction method and curing condition etc.are brought forward.Actual engineering application shows that these methods for crack control are effective.更多还原