砖混结构建筑物拆除承重墙，需进行墙体托换的加固设计。
Underpinning beam should be designed before the bearing wall removed in brick wall load structure.
从一则砖混结构楼房爆破拆除实例，发现在爆破拆除该类建筑物的设计与实施中存在问题，为此提出改进设计。
An example of dismantling a brick-concrete structure building by blasting method is analyzed, some problems arisen in the process of designing and constructing are illustrated.
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