...m and Floor in a Frame Building [建筑科学 Building Science] 钢筋混凝土结构屋面梁、板裂缝的鉴定与处理 [混凝土 Concrete] 预应力钢筋混凝土箱梁温度应力裂缝成因分析及对策 [科技资讯 Science & Technology Information] ..
Derrick-typereinforcedconcretebeam often appearsin the framework of house wallsand building walls that don't support the weight of walls, boards and so on.