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目前,砖混结构房屋的内外墙往往限于运输条件和施工劳动组合,不能同时砌筑,此时,将形成临时间断处。为此,在临时间断处采用什么留槎形式的问题十分重要,因为它直接关系到建筑物的整体性。从有关震害调查资料来看,在地震荷载作用下倒塌或破坏的砖房,其破坏部位一般都发生在内外墙的接槎处,因而临时间断处留槎形式的正确选定,对于抗震设防地区的砖混建筑物尤为关键。《砖石工程施工及验收规范》GBJ203—83第4.2.4条规定:“砖砌体的转角处和交接处应同时砌筑。对不能同时砌筑而又必须留置的临时间断
At present, the interior and exterior walls of brick-concrete structure houses are often limited to the combination of transportation conditions and construction labor and cannot be built at the same time. At this time, temporary breaks will be formed. For this reason, the question of what type of stay is adopted at the temporary break is very important because it is directly related to the integrity of the building. From the seismic damage investigation data, in the brick house collapsed or destroyed under the action of earthquake load, the damage site of the brick house generally occurs at the joint between the internal and external walls, and therefore the correct form of the residual form at the temporary break is selected for earthquake resistance. The brick and concrete buildings in the area are particularly critical. Rules 4.2.4 of GBJ203-83 for Masonry and Stone Construction and Acceptance Regulations stipulate: “The corners and junctions of the masonry shall be built at the same time. Temporary interruptions that cannot be built at the same time but must be retained