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1)  steel ratio of the arc ribs
拱肋含钢率
1.
The results is obtained and compared;it is shown that the different design parameters such as rise-span ratio,arch axis coefficient and steel ratio of the arc ribs have different influence on internal force,stress and displacement of any control cross-sections of CFST tied riged arch bridges.
以中承式钢管混凝土系杆拱桥为计算实例,采用通用软件ANSYS建立了拱桥的有限元计算模型,通过改变其主要设计参数,对该类桥梁在恒载作用下的受力情况进行了对比分析,得出了不同矢跨比、拱轴系数、主拱拱肋含钢率等设计参数对拱桥各控制截面内力、应力、位移变化的影响规律。
2)  steel pipe arch rib
钢管拱肋
1.
The mass-concrete is poured in multi-stage partition,and reinforced by rebar and nuts during construction of dumbbell steel pipe arch rib.
汉中市汉江城市桥闸工程钢管混凝土采用泵送顶升法施工,要求混凝土具有良好的可泵性、粘结性、自密实性和早强性能,采用JM-SCC外加剂保证了混凝土性能,对哑铃形钢管拱肋采用多次分仓灌注并用钢筋配螺母加固,施工完成后用超声波对钢管拱混凝土质量进行检查,结果表明,总体施工质量满足设计要求。
3)  steel tube arch rib
钢管拱肋
1.
With steel tube arch rib concrete construction of Haikou Extra Large Bridge as an example,detailed description of concrete press-casting of steel tube arch was given.
钢管拱肋的混凝土压注施工是能否体现设计目标——混凝土与钢管良好联合的关键工序。
2.
As a key working procedure in concrete-filled steel tube arch bridge,the quality of manufacturing and precasting of steel tube arch rib should be paid much attention,and should be manufactured in factories do the best we can if conditions permitted.
钢管拱肋加工预制作为钢管混凝土拱桥施工中的一道关键工序,其加工预制的质量应引起足够重视,条件许可的尽量采用在工厂进行,而像太平湖大桥这样大型的桥梁和钢结构加工,在现场完成的并不多见,因此它的现场预制技术可供今后类似的桥梁施工提供参考。
3.
The conceptual design for erecting the steel tube arch ribs of the bridge with vertical rotation method, and the process flow, key points to the construction techniques to be used in the erection are elaborated in detail.
本文详细介绍了该桥钢管拱肋竖向转体吊装的方案设计以及吊装施工中的工艺流程和施工技术要点。
4)  steel-pipe arch rib
钢管拱肋
1.
Based on the experience in Yanyan Yellow River Bridge, we introduce the fabrication of steel-pipe arch rib and control of linear shape of arch rib in suspending fabrication construction.
根据雁盐黄河大桥的线形控制经验,对钢管拱肋的制造中及拱肋悬拼施工中的线形控制问题进行了较全面的介绍,得出了很多有益的结论,可以作为以后类似工程建造的重要参考。
5)  Arch rib steel tube
拱肋钢管
6)  steel arch rib
钢拱肋
1.
The large-span steel arch rib was mostly divided into three to five segments to hoist and to do the airborne splicing construction before.
大跨度钢拱肋在以前大都是分三到五段吊装,在空中进行拼接。
补充资料:含钒钢
分子式:
CAS号:

性质:含有一定量钒的钢。钒是强化铁素体和缩小γ相区元素之一,它和碳、氮、氧都有极强亲和力。在钢中主要作用有:(1)细化钢的组织和晶粒,提高晶粒粗化温度,降低钢的过热敏感性,提高钢的强度和韧性;(2)当在高温溶入奥氏体时,增加钢的淬透性,以碳化物形态存在降低淬透性;(3)增加淬火钢的回火稳定性并产生二次硬化效应。钒是我国富有的元素,并已成为开发新钢种的常用合金元素之一。

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