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1)  hollow steel tube concrete floor
空心钢管混凝土楼盖
1.
This report is based on the project of the underground space in Zhujiang New District of Guangzhou,as the engineering instance,to introduce the application and experience of the hollow steel tube concrete floor.
本文以广州市珠江新城地下空间项目作为工程实例,介绍了空心钢管混凝土楼盖的应用及经验。
2)  reinforced concrete hollow floor
钢筋混凝土空心楼盖
3)  concrete hollow floorboard
混凝土空心楼盖
1.
The concrete hollow floorboard is more widely used in multiple-story and high buildings for its advantages of low structural height,small deadweight,the predominance of noise isolation,heat insulation and thermal retardation.
现浇混凝土空心楼盖具有结构高度小、自重轻、隔声隔热保温等优点,在多、高层大跨房屋建筑中应用前景广阔。
4)  cast-in-situ hollow concrete floor system
现浇混凝土空心楼盖
1.
By analysing the flexural rigidity of the cast-in-situ hollow concrete floor system which is laid by the tube filler in the same direction and comparing it with the conclusion of the technical specification for cast-in-situ hollow concrete floor structure by the Finite Element Method.
通过运用有限元的方法对单向布置筒芯的空心楼盖在两个方向上的抗弯刚度进行了分析,并与目前采用的现浇混凝土空心楼盖结构技术规程中的结论进行了比较,验证了规程中得出的单向布置筒芯的空心楼盖在两个方向上的抗弯刚度相近的结论。
5)  GRF in-situ concrete hollow floor
GRF现浇混凝土空心楼盖
6)  cast-in-situ concrete hollow floor
现浇混凝土空心楼盖
1.
The fundamental relationship between steel bar and concrete,the nonlinear theory of materials and inelastic imitation-analysis of cast-in-situ concrete hollow floor are introduced through the element of SOLID65 of ANSYS,which is a software widely used in the world.
现浇混凝土空心楼盖是三维受力板柱体系,两方向截面抗弯刚度不等。
2.
The 6m×6m cast-in-situ concrete hollow floor laying tube filler is tested.
进行了布置筒芯的6m×6m现浇混凝土空心楼盖的试验研究,得到了竖向均布荷载作用下空心楼盖的裂缝发展规律、破坏形态、荷载-挠度关系和极限承载力。
3.
Combined with one of the important supporting projects of Constructive Hall of Hunan Province, the main contents of this paper are introduced below: Based on summing-up the developing situation of cast-in-situ concrete hollow floor technology all over the country, current design methods are i.
现浇混凝土空心楼盖结构在我国已得到广泛应用。
补充资料:钢筋
分子式:
分子量:
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性质:钢筋做为钢材的全称是(预应力)钢筋混凝土用钢筋。钢筋从外形分两类,一类是光面钢筋,一类是变形钢筋。光面钢筋就是变通碳素钢圆钢(参见圆钢),直径8~50毫米。变形钢筋则是表面带筋的钢筋,通常带有两道纵筋利沿长度方向均匀分布的横筋,公称直径8~50毫米。根据横筋的不同分布,变形钢筋还分为螺旋形、人字形和月牙形钢筋(见图)。变形钢筋的材质是低合金结构钢。钢筋按强度分级,光面钢筋的屈服点/抗拉强度(即屈强比)不小于235/370兆帕,属I级;变形钢筋的屈强比不小于315/490兆帕的属Ⅱ级,不小于370/570兆帕的属Ⅲ级,不小于540/835兆帕的属Ⅳ级。另一种变形钢筋叫预应力钢筋混凝土用热处理钢筋,是由高强度(屈强比1325/1470兆帕)的硅锰系列代号为RB150的钢种(40Si2Mn,48Si2Mn,45Si2Cr)经过热轧、淬火和回火调质热处理制成的,公称直径有6毫米、8.2毫米和10毫米3种,钢筋的螺纹外形,分为有纵筋和无纵筋的两种(见图)。

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