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伸缩缝在基础部位需要断开吗？沉降缝呢？有相关规范吗？ - 工程施工 - 项目管理 - 氿上知道
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伸缩缝可以不断开，伸缩缝主要是调节因温度变化而引起的建筑物变形（伸缩），基础部位温度变化较小，相对的变形量也较小。