Overview of concrete filled steel tube arch bridges in china. About two hundred cfst arch bridges have been built or are now under construction. Camber of the arch bridge is worked out with the help of optimization calculation method that adopts proper arch axis as the objective junction. Failure reason analysis of an arch bridge and reinforcement. Thus, a series of field tests and theoretical analyses were conducted to study the effects of typical. This is the first study of its kind to study the temperature gradient in a cfst arch bridge with a single circular pipe main arch in a plateau area using probabilitystatistical methods. Study on arch rib hoisting method of largespan cfst arch bridge.
The arch bridges may be grouped according to different parameters, such as the shape of the arch rib, namely circulararc or a parabolashape. A longspan concretefilled steel tubular cfst arch bridge suffers. The canton tower is one of the most spectacular structures of recent times built using cfst members. Applied sciences free fulltext investigation on single tube. Level 2 safety evaluation is applied to a typical cfst arch bridge, to demonstrate the entire evaluation process and the effectiveness of the proposed safety evaluation framework. Pdf development and application of concrete arch bridges in china. The proposed paper compares tied arch bridge alternatives and cablestayed bridge alternatives based on needed. Nonlinear inplane stability of parabolic cfst archribs with. Closed spandrel arch bridge of 9 m span and with 4. After the history of more than 25 years, the number of existing cfst arch bridge exceeds 400, and cfst truss arch bridge accounts for about. The concrete filled steel tubular cfst structure has been applied prevalently and rapidly to arch bridges since 1990 and this tend is continued with. The clear span of the arch rib is 70m, and the whole length of the bridge is 76. An investigation on concrete and cfst arch bridges in china is carried out. Concretefilled arch ribs of concretefilled steel tubular cfst arch bridges experience temperature effects and shrinkagecreep effects, as well.
The beizhan bridge is a typical tied rigidframe cfst arch bridge. Actual temperature observation data were used to analyse the vertical temperature difference in the single circular pipe arch rib using statistical methods. Through rigidframe tied arch bridge in cfst rigidframe tied arch bridges, arch ribs are. Bridge description the bridge to be investigated in this study is the yeshan river bridge, which is a halfthrough cfst arch bridge in china. Cfst arch bridge, but also the record of the longest cfst arch bridge in the world. Pdf the tied arch bridge system provides a unique solution to the several challenges associated with the construction of railroad overpasses.
In general, for a cfst arch bridge, when the span is larger than 120m, the arch rib is composed of truss with cfst chords and others steel members. Stability behavior and new construction process for a fivespan cfst arch bridge. Decision to build a reinforced concrete arch was based on the fact that it is a fire resistant bridge 7. If one bridge has a longer span than another it does not necessarily mean that the bridge is longer from shore to. Chinas arch bridges arch bridges have been used for millennia, in china the form has developed and the longest spans can now be found there. In the past 20 years, great progress has been achieved in china in the construction of concretefilled steel tube cfst arch bridges and concrete arch bridges. The applications of concretefilled steel tubular cfst arch bridges are widely in china. Nov, 2016 the bridge studied is a halfthrough cfst trussed arch bridge shown in fig.
Concrete filled steel tubular cfst arch bridges have been developed rapidly in china since 1990. Scheme design of a 530m cfst arch bridge, the first yangtze river bridge in hejiang, sichuan, china pdf. Timedependent analysis of longspan, concretefilled. Arch 10 6th international conference on arch bridges. Estimation of dynamic response for highway cfst arch bridges. New development of long span cfst arch bridges in china 361 rings or ribs and 39% for light arch bridges, such as doublecurved arch bridge, truss arch bridge and rigidframe arch bridge chen, 2007b. Key wordsconcrete filled steel tubular arch bridge cfst arch bridge. In this section, however, the classification focuses on the construction materials, deck locations, and structural systems. Firstly, the internal forces of the members are calculated respectively by finite element under the actions of gravity. The survey has shown that there are more than 151 concrete arch bridges and more than cfst arch bridges with a span equal or longer than 100m built or under construction in china. This presentation looks at traditional chinese arch bridges in timber and. The length of the main span is the most common way to rank bridges as it usually correlates with the engineering complexity involved in designing and constructing the bridge. Pdf development and application of concrete arch bridges.
They were originally built of stone or brick but these days are built of reinforced concrete or steel. According to incomplete statistics, the number of constructed and underconstruction cfst arch bridges in china amount to more than 300. A method for seismic capacity evaluation of cfst arch bridges. Oct 02, 2019 the hoang van thu bridge is located in haiphong, vietnam. The dynamic response which is the main contain of the comfort characteristic estimation under vehicle loads for cfst arch bridges is a observant problem in design. Typical diseases of a longspan concretefilled steel tubular. Hydration heat of nonshrinkage concrete in largediameter. Experimental research on fatigue of tubularplate joints. Introduction cfst arch bridge is a new rapid developing bridge since the 1990s in china. Overview of concrete filled steel tube arch bridges in. Research on seismic damage evaluation of cfst arch bridges.
Probably the first reinforced concrete arch bridge using the melan method, built in usa, was the one in lyons county iowa. Air void and ring gap effect on cfst arch bridges dynamic. After that the experimental studies and nonlinear finite element analyses on ultimate load carrying. Simple innovative comparison of costs between tiedarch bridge and. The bridge completed in 2005 is a halfthrough concrete filled steel tubular arch bridge with a risespan ratio of.
Numerical analysis of ultimate strength of concrete filled steel. Reinforcement design calculation analysis of the cfst arch bridge. Nov 29, 2014 doubledeck bridge also appears in the cfst arch bridge, e. Nov, 2016 and 30 m width, the main span of this bridge was a cfst tied arch bridge combined with prestressed concrete continuous girder, as shown in fig. The bridge which was taken as an example locates at huanhu road in yantian district of shenzhen. Bosideng yangtze river bridge,is the largest cfst concrete filled steel tube arch in the world with 530m span. Of the 339 cfst arch bridges that have been built or are under construction around the world, 299 are cfst tied arch bridges, with the longest one having a span of 529 m he river no. The structural design and construction method of hoang van thu bridge are mainly introduced in this paper. So such bridges have better crossing capacity than the tied arch bridge and are used widely in cfst arch bridges in china. China technical code for cfst arch bridges arch 2016 na cd ver 7. Cfst arch bridge, halfthrough, floating continuous frame system, cantilever beam, continuous design. Arch bridges over which obstacles do you commonly find arch bridges.
The aqueduct bridge or the aqueduct of segovia in spain is a roman aqueduct and one typical and bestpreserved ancient stone arch bridge. When the span is greater than 200 m, truss section is adopted among 97% of arch. An overview of concrete and cfst arch bridges in china. Temperature effect on creep behavior of cfst arch bridges. Similarly, in the railway bridges domain, bowstring withtied arch bridges have several advantages and therefore have been design and constructed. Considering different cavity ratio, steel ratio and risetospan ratio, material and geometric nonlinearities analysis of parabolic cfst arch ribs under different inplane load cases are conducted. Taking nanning yonghe bridge that is a 346m cfst arch bridge as example, the seismic capability is evaluated that the bridge can resisted the earthquake which the acceleration of ground movement is respectively 0. At present, more than 400 cfst arch bridges have been built in country, and the longest spans are 530 and 575 m 2. It is concluded that the bigger the cavity ratio is, the lower stiffness and bearing capacity. Concrete performance timevarying effect of cfst arch bridges. Nonlinear inplane stability of parabolic cfst archribs. Influences of cavity on inplane stability behavior of parabolic cfst arch ribs are analyzed with ansys. A number of concretefilled steel tubular cfst arch bridges have been constructed in recent years. It is a singlespanned uppersupporting arch bridge with two concretefilled steel tube abbreviated as cfst arch dumbbellties as its main bearing member.
Feb 01, 2018 at present, three cfst arch bridges with a span of over 400 m are under construction, including the zangmu yarlung tsangpo river bridge on the lhasanyingchi railway, which has a span of 430 m. At present, three cfst arch bridges with a span of over 400 m are under construction, including the zangmu yarlung tsangpo river bridge on the lhasanyingchi railway, which has a span of 430 m. Chen baochuncollege of civil engineering,fuzhou university,fuzhou,fujian 350108,china. Vertical gradient temperature difference of the main arch. This paper introduces the design, process and a result of the dynamic model test of the cfst arch bridge, and introduces the dynamic test of the bridge. Arch bridges have been built since ancient times due to easy accessibility of stone masonry, which is an appropriate material for sustaining compressive forces. In current design practice, the philosophy for the strength design of concrete arches is widely adopted for cfst arches. Doubledeck bridge also appears in the cfst arch bridge, e. Based on strength and ductility, the seismic capabilities of the chords of arch ribs, web members, horizontal integrations, suspenders and beams of suspenders of concrete filled steel tube cfst arch bridges are studied, then the seismic capability of the bridge is obtained. Testthe strength of the arch bridge card model, using a stapler or another object of similar size.
Chinas first concretefilled steel tube cfst arch railway bridge. Jan 28, 2014 chinese arch bridges, timber, stone, concrete, steel. However, few quantitative studies have been reported on the typical diseases suffered by such bridges and their effects on vehicleinduced dynamic response. The findings of this study can serve as references for determining the temperature difference values of cfst arch bridges in tibet, china. Answerthe questions below, using the images and model. But there is no design codes for this type bridges presently.
Although less slender than motorway bridges of the same type, this kind of decks allow spans higher than 100 m, without the need of intermediate supports, and with a sufficient stiff deck. In this paper, after a brief introduction of cfst arch bridge, four typical bridges are presented as case studies. Weiwei lin, teruhiko yoda, in bridge engineering, 2017. This list of the longest arch bridge spans ranks the worlds arch bridges by the length of their main span. The span length has reached to 460m or even longer. Seismic response of a concrete filled steel tubular arch. Concretefilled steel tubular cfst arch bridges have been widely used in recent decades at home and abroad, and have been studied in the. Chinese arch bridges, timber, stone, concrete, steel. The main bridge structure of the bridge engineering cross yitong river, on the 102 national road, is a threespan flying swallow type specialshaped csft arch bridge.
Dec 16, 2018 level 2 safety evaluation is conducted by considering modal parameters, displacements, fatigue damage, and component and global safety status. The cfst arches are considered under axial or eccentric compression and are treated similarly to cfst columns. Using a cfst arch bridge with a span of 80 m, for example, han et al. To study the construction of concretefilled steel tubular cfst arch bridges in tibet, china, the hydrationtemperature field of nonshrinkage concrete in largediameter cfst arch ribs was evaluated in a temperaturetesting box to simulate a lowtemperature environment. The applications of steel and concretefilled steel tube cfst arch bridges in china are discussed. Firstly, a finite set of cfst arch bridge rib members with composite defects under eccentric axial pressures were evaluated by finite element analysis. Research on seismic damage evaluation of cfst arch bridges j. Pdf shaking table tests for the evaluation of the seismic. Study on arch rib hoisting method of largespan cfst arch. Besides, shitanxi bridge was open to traffic in 1998, but the fatigue cracks were found near the bracetochord intersecting line in 20, as shown in fig. Longterm temperature observation tests using a large test arch will be performed. The seismic capability of bridge is the minimum ac. The arch ribs are designed in the shape of a catenary with an arch rise of 76.
Spatial analysis of concrete filled steel tubular tied. May 02, 2009 more than 200 cfst arch bridges were investigated and analyzed based on the factors of type, span, erection method, geometric parameters, and material. Pdf the arch bridge is one of the main bridge types utilized in china, and. Concretefilled steel tube cfst bridges from around the. But there is no design codes for this type bridges. Typical diseases of a longspan concretefilled steel. Pdf development and application of concrete arch bridges in. Instead of pushing straight down, the load of an arch bridge is carried outward along the curve of the arch to the supports at each end. Typical diseases of a longspan concretefilled steel tubular arch. Pdf concretefilled steel tubular tied arch bridge system. The nonlinear static behavior of cfst arch bridges was intensively studied by experiments and finite element analysisi.
A finite element simulation was then conducted to replicate the experimental results. More than 400 concrete filled steel tube cfst arch bridges with a span no less than. Timedependent analysis of longspan, concretefilled steel. Temperature effect on creep behavior of cfst arch bridges because concretefilled steeltube cfst arch bridges usually reside in areas with strong temperature effects, which influence concrete creep behavior considerably, this paper aims to present an approach to evaluate the temperature influence on the creep behavior of cfst arch bridges, which has not been reported until now. Finite element analysis for cfst columns under blast loading. A cfst arch bridge was also constructed in china, of the span 115m over the china. The successful control of the arch axis proves that invariable cable method is effective in hoisting cfst arch ribs into arch bridge with proper camber. A longspan concretefilled steel tubular cfst arch bridge suffers severe vehicleinduced dynamic responses during its service life. Figure 1 shows a photograph of the bridge and the elevation and plan view is shown in figure 2. When the span is greater than 200 m, truss section. Verticalgradienttemperaturedifferenceofthemainarchwith. Some key issues in design calculation were presented, such as check of strength, calculation of section stiffness, and joint fatigue strength.
View finite element analysis for cfst columns under blast loading, 2017 peyman beiranvand. Concretefilled steel tube arch bridges in china sciencedirect. The pouring of concrete into steel tubes is key to constructing cfst arch bridges, and various highperformance concretes e. Structural model of the yajisha cfst arch bridge the main bridge of the yajisha is a halfthrough and nonhinged arch bridge with a main span of 344 m. At service conditions, these bridges are influenced significantly by the timedependent behavior of the concrete. Design and construction of hoang van thu bridge in vietnam. Research on strengthening suspended deck system for half. For bridges, cfst truss is mostly adopted for longspan arch bridge. Apr 04, 2014 concretefilled steel tubular cfst arch bridges have gained popularity over the last decades for use in longspan applications. Here, several nonlinear fea and scalemodel experimental research works have been performed on cfst arch bridges with air void and ring gap composite defects. After that, more than two hundred bridges have been built or under construction in china.
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