1) reinforced concrete ribbed arch bridge
钢筋混凝土肋拱桥
1.
The thesis makes detailed description the scheme selection of the demolition of long-span reinforced concrete ribbed arch bridge,which are the determining of the demolition way,principle,sequence and so on,with the Tiexin Bridge as the example.
结合南京市铁心桥拆除工程实例,介绍大跨度钢筋混凝土肋拱桥拆除施工方法选择、拆桥原则以及各部分构件的具体拆除顺序、施工工艺等,并详细论述拆除过程方案制定阶段的要点。
3) reinforced concrete arch rib
钢筋混凝土拱肋
1.
Analysis on steel skeleton and climbing framework for construction of reinforced concrete arch rib
钢筋混凝土拱肋劲性骨架爬模施工分析
4) reinforced concrete arch bridge
钢筋混凝土拱桥
1.
Construction technology with support of the long span main arch ring of the reinforced concrete arch bridge;
大跨钢筋混凝土拱桥主拱圈有支架施工技术
2.
Constructing methods of large span reinforced concrete arch bridge group support pouring;
大跨钢筋混凝土拱桥组合支架现浇施工方法
3.
Study on evaluation and comparison of the capability before and after strengthening of reinforced concrete arch bridge;
钢筋混凝土拱桥的评估与加固前后性能对比分析
5) reinforced concrete rigid frame arch bridge
钢筋混凝土刚架拱桥
1.
Aimed at outline and measures for strengthening the traditional reinforced concrete rigid frame arch bridge with arch and stayed cable system,an elastic supported continuous beam method for calculating load lateral distribution of arch and stayed cable system was put forward.
针对传统的钢筋混凝土刚架拱桥采用拱索体系加固的要点和措施,提出了计算拱索体系荷载横向分布的弹性支承连续梁法。
6) reinforced concrete double curved arch bridge
钢筋混凝土双曲拱桥
1.
The paper approaches preliminarily to the process and method for dismantling reinforced concrete double curved arch bridge by analyzing and summarizing the dismantlement course of the original Hongwei Bridge in Huaiyin City.
本文通过对原淮阴市红卫桥拆除过程进行分析总结 ,初步探索了钢筋混凝土双曲拱桥的拆除工艺和方
补充资料:钢筋
分子式:
分子量:
CAS号:
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)。
分子量:
CAS号:
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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