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一、前言 砖混结构房屋和其它砌体房屋采用钢筋混凝土屋盖时,由于屋盖和墙体间的温差引起变形裂缝的现象是常见的。大量的工程调查表明,这种现象在南方炎热地区和其它日温差较大的地区尤为严重。 温度变形裂缝主要发生在房屋的顶层和靠近山墙的端开间。斜裂缝常发生在房屋端
I. INTRODUCTION When reinforced concrete roofs are used in brick-concrete structures and other masonry houses, deformation cracking is common due to the temperature difference between the roof and the wall. A large number of engineering surveys have shown that this phenomenon is particularly serious in the hot regions of the South and other areas where the temperature difference is large. Temperature deformation cracks occur mainly at the top of the house and near the end of the gable. Oblique cracks often occur at the end of the house