The Experts below are selected from a list of 1152 Experts worldwide ranked by ideXlab platform
Oller Martínez, Sergio Horacio - One of the best experts on this subject based on the ideXlab platform.
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Springer Science and Business Media LLC', 2016Co-Authors: Chacón Flores, Rolando Antonio, Uribe Sasiain Nicolás, Oller Martínez, Sergio HoracioAbstract:The final publication is available at Springer via http://dx.doi.org/10.1007/s40799-016-0037-5This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer Reviewe
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Wiley', 2013Co-Authors: Chacón Flores, Rolando Antonio, Uribe N., Oller Martínez, Sergio HoracioAbstract:This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer Reviewe
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Wiley', 2013Co-Authors: Chacón Flores, Rolando Antonio, Uribe N., Oller Martínez, Sergio HoracioAbstract:This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer ReviewedPostprint (published version
Chacón Flores, Rolando Antonio - One of the best experts on this subject based on the ideXlab platform.
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Springer Science and Business Media LLC', 2016Co-Authors: Chacón Flores, Rolando Antonio, Uribe Sasiain Nicolás, Oller Martínez, Sergio HoracioAbstract:The final publication is available at Springer via http://dx.doi.org/10.1007/s40799-016-0037-5This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer Reviewe
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Wiley', 2013Co-Authors: Chacón Flores, Rolando Antonio, Uribe N., Oller Martínez, Sergio HoracioAbstract:This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer Reviewe
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Numerical validation of the Incremental Launching method of a steel bridge through a small-scale experimental study
'Wiley', 2013Co-Authors: Chacón Flores, Rolando Antonio, Uribe N., Oller Martínez, Sergio HoracioAbstract:This article presents an experimental and a numerical study of an Incremental Launching process of a steel bridge. The former is deployed in a scale-reduced laboratory,whereas the latter is performed using the finite elementmethod. The numerical simulation is based upon realistic transient boundary conditions and accurately reproduces the elastic response of the steel bridge during Launching. This numerical approach is validated experimentally with the scale-reduced test performed at the laboratory. The properly validated numerical model is subsequently systematically employed as a simulation tool of the process. The proposed simulation protocol might be useful for design and monitoring purposes of steel bridges to be launched. Results concerning strains, stresses, and displacements might be inferred from the model and thus compared to field measurements obtained in situ. The conditions presented at the end of the article are potentially useful for researchers and practice engineers alike.Peer ReviewedPostprint (published version
Xu Ying-qian - One of the best experts on this subject based on the ideXlab platform.
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Key Techniques for Incremental Launching Construction Control of Steel Truss Girder of the Huanghe River Bridge on Zhengzhou-Jiaozuo Intercity Railway
World Bridges, 2014Co-Authors: Xu Ying-qianAbstract:The main bridge of the Hanghe River Bridge on the Zhengzhou-Jiaozuo intercity railway is a through steel truss girder bridge with eleven continuous units of(2×100)m,the total length of which is 2200 m.The steel truss girder is erected by the combined use of Incremental Launching and cantilever assembly.Construction control was carried out for the installation of the assembling scaffolds and the beams with sliding rails involved in the large-scale temporary structure ahead of the Incremental Launching construction.During the Incremental Launching,the height difference of the lifting(lowering)of the three-truss blocks,lateral offsetting and Incremental Launching distance were also controlled,realizing the precise control of the steel truss girder in three directions and ensuring that the assembling geometry reach the one it is intended to.
Yao Fa-hai - One of the best experts on this subject based on the ideXlab platform.
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Key Techniques for Incremental Launching of Long Span and Long Continuous Unit Steel Truss Girder
Bridge Construction, 2011Co-Authors: Yao Fa-haiAbstract:The main bridge of Zhengzhou Huanghe River Rail-cum-Road Bridge is arranged in two continuous units,of which the first unit is a six-pylon continuous composite steel truss girder cable-stayed bridge with span arrangement(120+5×168+120) m and the second unit is a continuous composite steel truss girder bridge with span arrangement(5×120) m.The first unit truss girder of the bridge was erected by the construction technique of multi-point,continuous and synchronous Incremental Launching and the MIDAS Civil software was used to conduct the calculation of the Launching construction.In view of the reaction force and frictional force at the tops of the piers,2 sets of 350-t capacity continuous jacks were provided at each pier.The Incremental Launching distance of the long span and long continuous unit truss girder of the bridge was 1 080 m and the total Launching weight was 27 000 t.The side trusses were launched positively while the middle truss was moved passively and the technique of the multi-point,continuous and dynamic control of computer was applied.The Launching nose structure and the main steel truss girder were transformed form the inclined trusses into the straight ones via the connection points of the structure and the girder.The slipway was arranged by the side of the piers and the system of the slip blocks was transformed by the jacks installed at the front end of the slipway to finally satisfy the force condition requirements of the truss girder structure.
Fu-long Gao - One of the best experts on this subject based on the ideXlab platform.
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Effects on Mechanical Behavior in Incremental Launching Method of Pre-stressed Concrete Composite Box Girder With Corrugated Steel Webs
DEStech Transactions on Materials Science and Engineering, 2017Co-Authors: Fan Chen, Si-han Liang, Fu-long GaoAbstract:During construction, bridge’s stress state is significantly different from that in finished stage. The stress state of construction process may be much more danger when Incremental Launching method is applied. To analyze differences between the stress state of finished state and that in construction process, mechanical calculation was conducted based on an actual integral Incremental Launching constructed long-span pre-stressed composite concrete box girder with corrugated steel webs, applying solid-shell model to elaborately explore mechanical characteristics in each stage. Research reveals stress variations of different segments’ concrete bottom plates and variations of supports’ reaction forces, demonstrating that the majority of the girder may suffer worse inner force state during construction, compared to the finished state.
