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A method for examining the seismic performance of steel arch deck bridges

Cheng-Yu LIANG, Airong CHEN,

《结构与土木工程前沿（英文）》 2010年第4卷第3期页码 311-320 doi: 10.1007/s11709-010-0080-8

摘要： To examine the seismic resistance performance of a steel arch bridge during a strong earthquake, an approach is proposed in this paper to determine the ultimate strain of an arch rib using the static elasto-plastic large deformation theory. A steel fixed-end deck arch bridge with a span length of 200 m was used as an example in this study. The ultimate strain of the arch rib was calculated using the elasto-plastic finite element model. The seismic responses of the arch bridge exposed to strong earthquakes in two and three directions were also simulated. Moreover, the effect of earthquake motion in the lateral direction on the elasto-plastic earthquake response was discussed, and the seismic resistance of the structure was analyzed. The results show that steel arch bridges have preferable seismic resistance under strong earthquake conditions. While lateral earthquake motion has some influence on the damage to an arch bridge, it has little effect on the displacement, axial force, and bending moment responses of the arch rib. It is feasible to examine the seismic performance of the arch bridge by ascertaining the out-of-plane and in-plane earthquake responses of the bridge.

关键词： seismic performance earthquake damage steel deck arch bridge

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Performance of steel bridge deck pavement structure with ultra high performance concrete based on resin

《结构与土木工程前沿（英文）》 2021年第15卷第4期页码 895-904 doi: 10.1007/s11709-021-0759-z

摘要： This research investigated a pavement system on steel bridge decks that use epoxy resin (EP) bonded ultra-high performance concrete (UHPC). Through FEM analysis and static and dynamic bending fatigue tests of the composite structure, the influences of the interface of the pavement layer, reinforcement, and different paving materials on the structural performance were compared and analyzed. The results show that the resin bonded UHPC pavement structure can reduce the weld strain in the steel plate by about 32% and the relative deflection between ribs by about 52% under standard axial load conditions compared to traditional pavements. The EP bonding layer can nearly double the drawing strength of the pavement interface from 1.3 MPa, and improve the bending resistance of the UHPC structure on steel bridge decks by about 50%; the bending resistance of reinforced UHPC structures is twice that of unreinforced UHPC structure, and the dynamic deflection of the UHPC pavement structure increases exponentially with increasing fatigue load. The fatigue life is about 1.2 × 10⁷ cycles under a fixed force of 9 kN and a dynamic deflection of 0.35 mm, which meets the requirements for fatigue performance of pavements on steel bridge decks under traffic conditions of large flow and heavy load.

关键词： steel bridge deck pavement ultra-high-performance concrete epoxy resin composite structure bending fatigue performance

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Fatigue evaluation of steel-concrete composite deck in steel truss bridge——A case study

Huating CHEN; Xianwei ZHAN; Xiufu ZHU; Wenxue ZHANG

《结构与土木工程前沿（英文）》 2022年第16卷第10期页码 1336-1350 doi: 10.1007/s11709-022-0852-y

摘要： An innovative composite deck system has recently been proposed for improved structural performance. To study the fatigue behavior of a steel-concrete composite bridge deck, we took a newly-constructed rail-cum-road steel truss bridge as a case study. The transverse stress history of the bridge deck near the main truss under the action of a standard fatigue vehicle was calculated using finite element analysis. Due to the fact that fatigue provision remains unavailable in the governing code of highway concrete bridges in China, a preliminary fatigue evaluation was conducted according to the fib Model Code. The results indicate that flexural failure of the bridge deck in the transverse negative bending moment region is the controlling fatigue failure mode. The fatigue life associated with the fatigue fracture of steel reinforcement is 56 years. However, while the top surface of the bridge deck concrete near the truss cracks after just six years, the bridge deck performs with fatigue cracks during most of its design service life. Although fatigue capacity is acceptable under design situations, overloading or understrength may increase its risk of failure. The method presented in this work can be applied to similar bridges for preliminary fatigue assessment.

关键词： Fatigue assessment composite bridge deck rail-cum-road bridge fatigue stress analysis Model Code

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Bending performance of composite bridge deck with T-shaped ribs

Qingtian SU, Changyuan DAI, Xu JIANG

《结构与土木工程前沿（英文）》 2019年第13卷第4期页码 990-997 doi: 10.1007/s11709-019-0532-8

摘要： This paper proposes a new type of steel-concrete composite deck, which is composed of orthotropic steel deck (OSD) with T-shaped ribs, concrete plate and studs connecting OSD and concrete plate. The OSD can act as framework for concrete plate and contribute to load bearing capacity at the same time, which could save construction time. Compared with conventional OSD system, this new type of composite bridge deck can also improve fatigue performance. Considering that this type of composite deck is not yet applied in practical engineering and its mechanical performance is not revealed in previous literatures, two full-scale specimens were designed and manufactured in this research. The mechanical performance, particularly, bending capacity in positive and negative region was carefully tested and analyzed. The load-deflection curve, load-slip relation, strain distribution in concrete and steel were obtained. The test results showed that the plastic performance of this kind of composite bridge deck was satisfying and the bending capacity was high.

关键词： bending performance composite bridge deck T-shaped steel ribs

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Trial design of arch bridge of composite box section with steel web-concrete flange

Jiangang WEI, Qingwei HUANG, Baochun CHEN,

《结构与土木工程前沿（英文）》 2010年第4卷第3期页码 370-375 doi: 10.1007/s11709-010-0073-7

摘要： The concrete arch bridge is a natural and appropriate structural solution, aesthetically pleasing and easily integrated into the environment, especially in mountainous and island areas. However, construction difficulty and cost will increase with heavy self-weight when the span enlarges. A potential solution is to use a composite box arch ring with steel web-concrete flange. Taking Wanzhou Yangtze River Bridge (the longest concrete arch bridge in the world with a main span of 420 m) as a prototype, trial designs of a composite box arch with steel webs (including corrugated steel webs and plain steel webs) and concrete flanges were carried out. Comparison of quantities and structural behaviors of the prototype concrete arch with the two trial designed composite arch was presented. It is shown that the self-weight of the composite arch can reduce about 28% and the structures can meet the design requirements, therefore it is possible to use the two composite arches in long span arch bridges.

关键词： steel webs concrete box arch trial design structural behaviors finite element method

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Innovative steel-UHPC composite bridge girders for long-span bridges

Xudong SHAO, Lu DENG, Junhui CAO

《结构与土木工程前沿（英文）》 2019年第13卷第4期页码 981-989 doi: 10.1007/s11709-019-0531-9

摘要： Steel and steel-concrete composite girders are two types of girders commonly used for long-span bridges. However, practice has shown that the two types of girders have some drawbacks. For steel girders, the orthotropic steel deck (OSD) is vulnerable to fatigue cracking and the asphalt overlay is susceptible to damage such as rutting and pot holes. While for steel-concrete composite girders, the concrete deck is generally thick and heavy, and the deck is prone to cracking because of its low tensile strength and high creep. Thus, to improve the serviceability and durability of girders for long-span bridges, three new types of steel-UHPC lightweight composite bridge girders are proposed, where UHPC denotes ultra-high performance concrete. The first two types consist of an OSD and a thin UHPC layer while the third type consists of a steel beam and a UHPC waffle deck. Due to excellent mechanical behaviors and impressive durability of UHPC, the steel-UHPC composite girders have the advantages of light weight, high strength, low creep coefficient, low risk of cracking, and excellent durability, making them competitive alternatives for long-span bridges. To date, the proposed steel-UHPC composite girders have been applied to 14 real bridges in China. It is expected that the application of the new steel-UHPC composite girders on long-span bridges will have a promising future.

关键词： steel-UHPC composite bridge girder long-span bridge orthotropic steel deck fatigue cracking durability

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Typical diseases of a long-span concrete-filled steel tubular arch bridge and their effects on vehicle-induced

Jianling HOU, Weibing XU, Yanjiang CHEN, Kaida ZHANG, Hang SUN, Yan LI

《结构与土木工程前沿（英文）》 2020年第14卷第4期页码 867-887 doi: 10.1007/s11709-020-0649-9

摘要： A long-span concrete-filled steel tubular (CFST) arch bridge suffers severe vehicle-induced dynamic responses during its service life. However, few quantitative studies have been reported on the typical diseases suffered by such bridges and their effects on vehicle-induced dynamic response. Thus, a series of field tests and theoretical analyses were conducted to study the effects of typical diseases on the vehicle-induced dynamic response of a typical CFST arch bridge. The results show that a support void results in a height difference between both sides of the expansion joint, thus increasing the effect of vehicle impact on the main girder and suspenders. The impact factor of the displacement response of the main girder exceeds the design value. The variation of the suspender force is significant, and the diseases are found to have a greater effect on a shorter suspender. The theoretical analysis results also show that the support void causes an obvious longitudinal displacement of the main girder that is almost as large as the vertical displacement. The support void can also cause significant changes in the vehicle-induced acceleration response, particularly when the supports and steel box girder continue to collide with each other under the vehicle load.

关键词： long-span arch bridge expansion joint disease vehicle-bridge coupling vibration dynamic response

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中国钢管混凝土拱桥 Review

郑皆连, 王建军

《工程（英文）》 2018年第4卷第1期页码 143-155 doi: 10.1016/j.eng.2017.12.003

摘要：

近20 多年来，中国钢管混凝土拱桥和以钢管混凝土为骨架的混凝土拱桥获得大发展，跨径增大很快，在桥梁发展史上罕见。高速公路和高速铁路的大规模建设为大跨径拱桥的发展提供了需求，设计及施工技术的进步为修建大跨径拱桥提供了可能。作为这段历史的参与者，我们通过本文来介绍中国钢管混凝土拱桥和以钢管混凝土为劲性骨架的混凝土拱桥的发展状况及主要创新技术，内容主要包括钢管混凝土拱桥关键建设技术，如钢管拱桁设计、制造与安装，管内混凝土制备与灌注等技术，以世界最大跨度钢管混凝土拱桥——合江长江一桥为工程实例进行了详细介绍；以及劲性骨架混凝土拱桥的主要建设技术，如斜拉扣挂悬拼施工、斜拉扣索调载、拱肋外包混凝土浇注等，并对广西邕宁邕江大桥和云桂铁路南盘江特大桥两个工程实例进行了介绍。中国钢管混凝土拱桥取得了同类桥型世界领先的地位，随着关键技术的持续创新，将成为推动拱桥发展突破的新领军者。

关键词：钢管混凝土拱桥劲性骨架混凝土拱桥斜拉扣挂悬拼真空辅助灌注管内混凝土斜拉扣索调载

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大跨径钢桥桥道系协同作用试验模型研究

夏国星,钱振东,陈春,刘龑

《中国工程科学》 2012年第14卷第5期页码 96-100

摘要：

建立了考虑整桥变形的局部梁段模型，对钢桥面铺装在整桥及车载作用下的应力进行了计算，得到整桥变形的影响系数为1.17。建立初拟的两种协同作用试验方案的有限元模型，以局部梁段模型中铺装的最大应力应变值为参考值，对两种协同作用试验方案中相关结构参数进行了修正；在此基础上，为保证设计的协同作用试验模型与原型的一致性，将修正后的试验模型与局部梁段模型在控制点位应力值进行了对比；最终得到大跨径钢桥桥道系协同作用试验模型。研究成果可为钢桥面铺装室内试验模型的设计提供理论依据。

关键词：协同作用试验模型大跨径钢桥桥道系

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连续钢箱梁桥面铺装层结构应力分析

李国芬,曹牧,王宏畅,朱华平

《中国工程科学》 2013年第15卷第8期页码 79-83

摘要：

正交异性钢桥面的构造复杂，用理论算法对铺装层进行力学计算，较难得到精确的计算结果。本文利用有限元通用软件对曲线钢箱梁桥浇筑式沥青铺装层进行受力分析，将正交异性钢桥面板、铺装层作为整体，建立有限元模型，研究铺装层受力变形特点。根据钢桥面铺装层常出现的病害，并结合超载及刹车产生的水平荷载对铺装层受力的影响，提出相应的桥面铺装层破坏的综合控制指标。

关键词：桥面铺装曲线钢箱梁铺装层开裂粘结滑移应力应变特性

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Feasibility of crack free reinforced concrete bridge deck from materials composition perspective: a state

Mahdi AREZOUMANDI

《结构与土木工程前沿（英文）》 2015年第9卷第1期页码 91-103 doi: 10.1007/s11709-015-0274-1

摘要： Early age cracking on bridge deck has been the subject of many studies for years. Cracking is a major concern because it leads to premature deterioration of structures. Millions of dollars spent to repair the cracked bridge decks each year. To design an appropriate mixture for crack free bridge deck, it is important to study previous researches. This paper presents a comprehensive literature review of the performance of different materials compositions as well as methods have been used to reduce and control bridge deck cracks. Different material compositions and methods are discussed in terms of their performances as well as advantages and disadvantages.

关键词： bridge deck crack fiber shrinkage shrinkage reducing admixture

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700 m级钢管混凝土拱桥设计与建造可行性研究

郑皆连,王建军,牟廷敏,冯智,韩玉,秦大燕

《中国工程科学》 2014年第16卷第8期页码 33-37

摘要：

以500 m级钢管混凝土拱桥的设计和成套施工技术为基础，对700 m级钢管混凝土拱桥的设计和建造技术进行可行性研究，确定总体设计和施工方案，较为详细地研究了拱肋制造和安装、管内混凝土灌注等关键技术。研究结果表明，建造700 m级的钢管混凝土拱桥已不存在技术门槛，综合考虑经济、安全等因素，是该跨径级别的强力竞争桥型之一，应尽早进行工程实践和推广。

关键词：桥梁工程 700 m跨径级别钢管混凝土拱桥设计建造

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桥面铺装对钢桥面板疲劳应力幅的影响

吴冲,刘海燕,张胜利,崔冰,丁文俊

《中国工程科学》 2010年第12卷第7期页码 39-42

摘要：

钢桥面板厚度小，铺装层的相对刚度较大，钢桥面板疲劳设计时，应该考虑铺装层与钢桥面板的共同作用。假设桥面铺装与顶板没有相对滑移，采用有限元方法探讨了桥面铺装弹性模量和厚度对正交异性钢桥面板疲劳应力幅的影响。

关键词：桥梁钢桥面板桥面铺装疲劳应力幅

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南京长江第四大桥钢桥面铺装疲劳性能试验研究

詹俞,李国芬,王宏畅

《中国工程科学》 2013年第15卷第8期页码 75-78

摘要：

结合南京长江第四大桥钢桥面铺装实体工程，开展铺装层混合料20 ℃疲劳性能试验。为了使试验结果能够更真实地反映主桥铺装的实际情况，直接采用主桥铺装使用的混合料成型试件，其中，带钢板复合梁试件为施工现场摊铺、碾压成型。室内试验对铺装结构单层采用劈裂疲劳试验，选择0.2、0.3、0.4、0.5、0.6这5个等级的应力水平，对组合结构采用带钢板复合梁疲劳试验，荷载水平为6 kN、7 kN、8 kN，并通过回归分析得到疲劳方程。

关键词：道路工程钢桥面铺装疲劳性能劈裂疲劳疲劳方程

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Investigation of mechanical performance of prestressed steel arch in tunnel

Yaqiong WANG, Yunxiao XIN, Yongli XIE, Jie LI, Zhifeng WANG

《结构与土木工程前沿（英文）》 2017年第11卷第3期页码 360-367 doi: 10.1007/s11709-017-0429-3

摘要： In the traditional tunneling method, the steel arch are often adopted to support surrounding rock to ensure the structural stability. If the steel arch is prestressed in time, tunnel support can effectively prevent the development of rock crack, thereby increasing the overall strength of tunnel support and suppress the deformation of the surrounding rock. Based on the mechanical model of steel arch established in this paper, the stress distribution of steel arch is investigated via the numerical simulation method, and the impact on surrounding rock is also analyzed. Through a field test, the rules of the arch strain distribution are observed and discussed. The results show that the prestressed steel arch structure can provide effective support and the stress gradually decreases from stress point to another arch springing. Furthermore, the stress distribution applied by the prestressed steel arch on the surrounding rock is uniform in a certain extent, and it is suggested that this construction method utilizing the prestressed steel arch to squeeze surrounding rock is feasible from a theoretical view.

关键词： tunnel support prestressing force steel arch numerical analysis