1) simply-supported beam bridge of steel concrete
钢筋混凝土简支梁桥
1.
Determination of the criterion of durability in simply-supported beam bridge of steel concrete
钢筋混凝土简支梁桥耐久性指标的确定
2) existing simply supported RC bridge beam
在用钢筋混凝土简支桥面梁
1.
An evaluation method of bending stiffness of existing simply supported RC bridge beams is suggested.
提出了用钢筋粘结系数反映粘结破坏对在用钢筋混凝土简支桥面梁受弯刚度的影响以及在用钢筋混凝土简支桥面梁受弯刚度的估算方法。
3) simply supported reinforcement concrete hollow slab girder bridge
简支钢筋混凝土空心板梁桥
4) Reinforced concrete simple-supported beam
钢筋混凝土简支梁
1.
The thesis aims to develop a set of simple, economical and applicable test system of reinforced concrete simple-supported beams and make it a powerful supplement in structural experiment f.
尽管对简支梁的理论研究和相应的试验开展得比较多,但是结构试验的试验体系却相对匮乏,特别是作为教学与研究为一体的中小型试验测试体系更是少见,故本课题力图研制开发一套简单、经济、适用的钢筋混凝土简支梁试验系统,作为对简支梁结构试验领域的补充。
5) Reinforced concrete bridge
钢筋混凝土桥梁
1.
The structure defection analysis and the reinforcing technology to the reinforced concrete bridge;
钢筋混凝土桥梁结构损伤的原因分析和加固措施
2.
Research on durability assessment for reinforced concrete bridge;
钢筋混凝土桥梁耐久性评估研究
3.
The durability of reinforced concrete bridge;
钢筋混凝土桥梁的耐久性
6) reinforced concrete bridges
钢筋混凝土桥梁
1.
State-of-art of the mechanical behaviour of the corrosion reinforced concrete bridges;
锈蚀钢筋混凝土桥梁力学性能研究综述(Ⅱ)
2.
With the rapid development of transport routes,it is important to find out whether the bridge can meet the heavy cargo transport development and take on the needs of large equipment transport tasks, as well as after the passage of overloading of vehicles how much will fatigue properties change on the existing reinforced concrete bridges, which are issues of concern to the urgent need .
随着公路交通运输的快速发展,运输路线上的桥梁能否满足重载车辆运输发展的需要而承担起大型、重型设备的运输任务,以及超载车辆通过后对既有钢筋混凝土桥梁的疲劳性能等会产生多大的影响,这都是迫切需要关注的问题。
3.
Recently,the deterioration and damage of reinforced concrete bridges caused by durability inadequate were more and more serious and widespread,the normal use or security operations of the bridges were seriously affect,and the economic losses far beyond people\'s imagination.
近年来,由于耐久性不足造成钢筋混凝土桥梁结构劣化损伤的现象日益严重和普遍,已经严重影响到桥梁的正常使用和安全运营,其带来的经济损失之大远远超出人们的想象。
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)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条