|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ground motion spatial variability effects on seismic response control of cable-stayed bridges显示文摘The spatial variability of input ground motion at supporting foundations plays a key role in the structural response of cable-stayed bridges (CSBs); therefore, spatial variation effects should be included in the analysis and design of effective vibration control systems. The control of CSBs represents a challenging and unique problem, with many complexities in modeling, control design and implementation, since the control system should be designed not only to mitigate the dynamic component of the structural response but also to counteract the effects of the pseudo-static component of the response. The spatial variability effects on the feasibility and efficiency of seismic control systems for the vibration control of CSBs are investigated in this paper. The assumption of uniform earthquake motion along the entire bridge may result in quantitative and qualitative differences in seismic response as compared with those produced by uniform motion at all supports. A systematic comparison of passive and active system performance in reducing the structural responses is performed, focusing on the effect of the spatially varying earthquake ground motion on the seismic response of a benchmark CSB model with different control strategies, and demonstrates the importance of accounting for the spatial variability of excitations. | Shehata E. Abdel Raheem Toshiro Hayashikawa Uwe Dorka | 2011 | Earthquake Engineering and Engineering Vibration2011，10，1： | 9 |
| 2 | Prediction and mitigation analysis of ground vibration caused by running high-speed trains on rigid-frame viaducts显示文摘In this study a 3D numerical analysis approach is developed to predict the ground vibration around rigid-frame viaducts induced by running high-speed trains.The train-bridge-ground interaction system is divided into two subsystems:the train-bridge interaction and the soil-structure interaction.First,the analytical program to simulate bridge vibration with consideration of train-bridge interaction is developed to obtain the vibration reaction forces at the pier bottoms.The highspeed train is described by a multi-DOFs vibration system and the rigid-frame viaduct is modeled with 3D beam elements.Second,applying these vibration reaction forces as input external excitations,the ground vibration is simulated by using a general-purpose program that includes soil-structure interaction effects.The validity of the analytical procedure is confirmed by comparing analytical and experimental results.The characteristics of high-speed train-induced vibrations,including the location of predominant vibration,are clarified.Based on this information a proposed vibration countermeasure using steel strut and new barrier is found effective in reducing train-induced vibrations and it satisfies environmental vibration requirements.The vibration screening efficiency is evaluated by reduction VAL based on 1/3 octave band spectral analysis. | Liangming Sun Weiping Xie Xingwen He Toshiro Hayashikawa | 2016 | Earthquake Engineering and Engineering Vibration2016，15，1： | 5 |
| 3 | Effects of bottom bracings on torsional dynamic characteristics of horizontally curved twin I-girder bridges with different curvatures显示文摘Curved twin I-girder bridges (CTIGBs) have low torsional stiffness that makes them vulnerable to dynamic loads. This study investigates the effects of bottom bracings on the torsional dynamic characteristics of CTIGBs. Five types of bottom bracings are designed to investigate their effects on the dynamic characteristics of CTIGBs with different curvatures under free and forced vibrations. To perform numerical investigations, three-dimensional (3-D) finite element (FE) bridge and vehicle models are established using commercial ANSYS code, and then a vehicle-bridge interaction analysis approach is proposed. Road roughness profiles generated from power spectral density and cross spectral functions are also taken into account in the analyses. The numerical results show that torsional frequencies increase significantly after providing bottom bracings, and the increasing rate depends on the type of bottom bracings and their locations of installation. Bottom bracings can act as load transmitting members from one main girder to the others. Large negative bearing forces that have occurred in bridges with small radii of curvatures can be remarkably reduced by providing bottom bracing systems. It is found that the performances of several bottom bracing systems are effective in improving the torsional dynamic characteristics of the bridges in this study. | Robiul Awall Toshiro Hayashikawa Takashi Matsumoto | 2012 | Earthquake Engineering and Engineering Vibration2012，11，2： | 5 |
| 4 | Numerical analysis on seismic response of Shinkansen bridge-train interaction system under moderate earthquakes显示文摘This study is intended to evaluate the influence of dynamic bridge-train interaction (BTI) on the seismic response of the Shinkansen system in Japan under moderate earthquakes. An analytical approach to simulate the seismic response of the BTI system is developed. In this approach, the behavior of the bridge structure is assumed to be within the elastic range under moderate ground motions. A bullet train car model idealized as a sprung-mass system is established. The viaduct is modeled with 3D finite elements. The BTI analysis algorithm is verified by comparing the analytical and experimental results. The seismic analysis is validated through comparison with a general program. Then, the seismic responses of the BTI system are simulated and evaluated. Some useful conclusions are drawn, indicating the importance of a proper consideration of the dynamic BTI in seismic design. | Xingwen He Mitsuo Kawatani Toshiro Hayashikawa Takashi Matsumoto | 2011 | Earthquake Engineering and Engineering Vibration2011，10，1： | 3 |
| 5 | Parametric Study on Steel Tower Seismic Response of Cable- stayed Bridges Under Great Earthquake Ground Mo- tion显示文摘 | RAHEEM S E A HAYASHIKAWA T | 2003 | Structural Engineering/Earthquake Engineer- ing2003，20，1： | 1 |
| 6 | Parametric Study on Steel Tower Seismic Response of Cable-Stayed Bridges Under Great Earthquake Ground Motion显示文摘 | Abdel Raheem S E Hayashikawa T | | 0，，01： | 1 |
| 7 | Seismic performance of isolated curved steel viaducts equipped with deck unseating prevention cable restrainers显示文摘 | Ruiz Julian F D Hayashikawa T Obata T | 2007 | Journal of Constructional Steel Research2007，63，2： | 1 |
| 8 | Parametric Study on Dynamic Interaction of Horizontally Curved Twin I-Girder Bridges and a Moving Vehicle显示文摘 | Awall MR Hayashikawa T | | 0，，： | 1 |
| 9 | Load- carrying capacity of steel-to-timber joints with a pre-tensioned bolt显示文摘 | Ali Awaludin Takuro Hirai Toshiro Hayashikawa | 2008 | Journal of Wood Science2008，54，5： | 1 |
| 10 | Fatigue analysis of ECC-steel composite deck under wheel trucking load 显示文摘 | Kakuma K Matsumoto T Hayashikawa T | 2011 | Procedia Engineering2011，14，： | 1 |
| 11 | Assessment of current nonlinear static procedures for seismic evaluation of BRBF buildings 显示文摘 | Nguyen A H Chintanapakdee C Hayashikawa T | 2010 | Journal of Constructional Steel Research2010，66，89： | 1 |
| 12 | Assessment of current nonlinear static procedures for seismic evaluation of BRBF buildings显示文摘 | An Hong Nguyen Chatpan Chintanapakdee Toshiro Hayashikawa | 2010 | Journal of Constructional Steel Research2010，，8： | 1 |
| 13 | Three-Dimensional Bridge-Vehicle Interaction Analysis of Simply Supported Twin I-girder Bridge显示文摘 | Ngo-Tran TL Hayashikawa T Matsumoto T | | 0，，： | 1 |
| 14 | Energy Dissipation System for Earthquake Protection of Cable-stayed Bridge Towers 显示文摘 | RAHEEM S E A HAYASHIKAWA T | 2013 | Earthquakes and Structures2013，5，6： | 1 |
| 15 | Energy Dissipation System for Earthquake Protection of Cable-Stayed Bridge Towers 显示文摘 | RAHEEM S E A HAYASHIKAWA T | 2013 | Earthquakes and Structures2013，5，6： | 1 |
| 16 | Seismic performance of isolated curved steel viaducts equipped with deck unseating prevention cable restrainers 显示文摘 | Ruiz Julian F D Hayashikawa T Obata T | 2007 | Journal of Constructional Steel Research2007，65，2： | 1 |
| 17 | Non-linear Seismic Dynamic Response of Curved Steel Bridges Equipped with LRB Supports 显示文摘 | Galindo C M Belda J G Hayashikawa T | 2010 | Steel Construction2010，3，1： | 1 |
| 18 | A bridge damage detection approach using train-bridge interaction analysis and GA optimization 显示文摘 | using correlation and Computers : Structures He X Kawatani M Hayashikawa T | 2011 | Procedia Engineering2011，14，： | 1 |
| 19 | Study on Seismic Response of Curved Viaduct Systems with Different Isolation Conditions under Great Earthquake Ground Motion 显示文摘 | MOHAMED W A HAYASHIKAWA T ALY A G | 2003 | Journal of Structural Engineering2003，49，2： | 1 |
| 20 | Invasion of Asian citrus psyllids, Diaphorina citri into citrus orchards in residential areas显示文摘 | Hayashikawa S Suenaga H Matsuhira K | 2007 | Kyushu Plant Protection Research (Japan)2007，53，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员