随着建筑业的高速发展,大体积混凝土广泛应用于桥梁和高层建筑,大体积混凝土的质量与结构安全、工程造价息息相关,大体积混凝土常见的质量问题就是混凝土结构产生裂缝。为了防止裂缝,不仅要控制大体积混凝土内部最高温度和内外温差,还要从改善结构约束条件,混凝土性能等方面进行控制。笔者结合多年的施工经验,谈谈有关桥梁大体积混凝土施工应关注的几个问题。 With the rapid development of the construction industry, mass concrete is widely used in bridges and high-rise buildings. The mass of large-volume concrete is closely related to structural safety and engineering cost. The common quality problem of mass concrete is cracking in concrete structures. In order to prevent cracks, it is necessary not only to control the maximum temperature within the bulk concrete and the temperature difference between inside and outside, but also to improve the structural constraints, concrete performance, and other aspects. The author combines many years of construction experience, talk about a few issues that should be concerned about the bridge mass concrete construction.