1、压型钢板混凝土组合楼承板
1. Profiled steel plate concrete composite floor support plate
由于组合钢结构楼承板担负着传递水平力的作用,因此应在钢梁和型钢板之间的连接处设置必要的螺柱。设计时应考虑钢梁与楼板承载力的组合作用,可以显着提高梁的承载能力,强度和稳定性,有效降低梁的高度,通常,组合楼承板的下部不需要额外的加固,但是对于具有动态载荷的区域和相对潮湿的区域,地板的下部仍需要配备必要的结构加固。
Due to the role of the composite steel structure floor bearing plate in transmitting horizontal forces, necessary bolts should be set at the connection between the steel beam and the steel plate. When designing, the combined effect of steel beams and floor slabs should be considered, which can significantly improve the bearing capacity, strength, and stability of the beams, effectively reduce the height of the beams. Generally, the lower part of the composite floor slab does not require additional reinforcement, but for areas with dynamic loads and relatively humid areas, the lower part of the floor still needs to be equipped with necessary structural reinforcement.
但是,组合楼承板一定符合配重标准,并且还一定满足楼承板1.5小时的防火要求。这样,这样楼承板一定用80mm厚的混凝土浇筑,采用蝶型压型板楼承板厚度将达到130—150mm的样子,当然,当这种楼承板用于建造住宅时,室内需要额外的天花板。
However, the composite floor support plate must meet the weight standards and also meet the fire protection requirement of 1.5 hours for the floor support plate. In this way, the floor support plate must be poured with 80mm thick concrete, and the thickness of the floor support plate using butterfly shaped compression plates will reach 130 8217; The 150mm shape, of course, requires additional ceilings indoors when this type of floor support plate is used for residential construction.
2、预制混凝土叠合板
2. Prefabricated concrete composite slab
预制混凝土叠合板是根据使用要求和制造过程中的受力特点,将现浇结构改变为预制的单件和现浇部件,预制的单个部件在工厂制造,然后被运送到现场进行组装,再浇捣现浇混凝土,形成层压组件的整体结构。
Prefabricated concrete composite panels are made by changing the cast-in-place structure into prefabricated single pieces and cast-in-place components according to the usage requirements and the stress characteristics during the manufacturing process. The prefabricated individual components are manufactured in the factory and then transported to the site for assembly. The cast-in-place concrete is then poured and compacted to form the overall structure of laminated components.
这种结构的主要优点是:机械化程度高,施工周期短,可以使用预应力技术和高强度钢,预制件尺寸小,重量轻,便于运输和吊装。
The main advantages of this structure are: high degree of mechanization, short construction period, the use of prestressed technology and high-strength steel, small size of prefabricated components, light weight, and easy transportation and lifting.
当然,仍然存在一些缺陷:预制混凝土和现浇混凝土之间存在龄期上差异,两者之间存在收缩应力,并且在平板缝之间容易出现裂纹。
Of course, there are still some defects: there is an age difference between prefabricated concrete and cast-in-place concrete, there is shrinkage stress between the two, and cracks are prone to occur between flat joints.
3、现浇钢筋混凝楼承板。
3. Cast-in-situ reinforced concrete floor support plate.
现浇地板采用工具型支撑楼承板。其优点是整体性好,装饰方便,但模板价格较高,钢筋与钢梁的连接和结构较复杂,施工周期长。同时,要确保混凝土建筑,为了使楼承板和钢梁共同发挥作用,还一定在钢梁的法兰上提供必要的螺柱。
The cast-in-place floor adopts a tool type support floor support plate. Its advantages are good integrity and convenient decoration, but the template price is high, the connection and structure between steel bars and steel beams are complex, and the construction period is long. At the same time, it is necessary to ensure that concrete buildings provide necessary bolts on the flanges of the steel beams in order for the floor support plates and steel beams to work together.