Full-Model Shaking Table Tests of Seismic Behavior of a Super-Long-Span Cable-Stayed Bridge with Pile Foundations

2019 ◽  
Vol 24 (11) ◽  
pp. 04019102 ◽  
Author(s):  
Limin Sun ◽  
Wen Xie
Keyword(s):  
Seismic Behavior ◽  
Shaking Table ◽  
Pile Foundations ◽  
Full Model ◽  
Shaking Table Tests ◽  
Cable Stayed Bridge ◽  
Long Span

A study on seismic behavior of pile foundations of bridge abutment on liquefiable ground through shaking table tests

2017 ◽  
Author(s):  
Mitsuhiko Nakata ◽  
Shunsuke Tanimoto ◽  
Shuichi Ishida ◽  
Michio Ohsumi ◽  
Jun-ichi Hoshikuma
Keyword(s):  
Seismic Behavior ◽  
Shaking Table ◽  
Pile Foundations ◽  
Shaking Table Tests ◽  
Bridge Abutment

scholarly journals Longitudinal seismic responses of a cable-stayed bridge based on shaking table tests of a half-bridge scale model

2018 ◽  
Vol 22 (1) ◽  
pp. 81-93 ◽  
Author(s):  
Li Xu ◽  
Hao Zhang ◽  
Jianfeng Gao ◽  
Chao Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shaking Table ◽  
Scale Model ◽  
Shaking Table Tests ◽  
Element Analysis ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Scale Ratio ◽  
Main Components

This article studies the seismic response of a symmetric long-span cable-stayed bridge under longitudinal uniform excitations by finite element analysis and shaking table tests. The feasibility and method of performing shaking table tests are examined using a simplified half-bridge scale model. By taking advantage of the symmetry, it is possible to construct a scale model with a larger scale ratio than a full-bridge scale model. The main components of the scale model (i.e. tower, piers, girder, and cables) were fabricated using the same or similar materials as in the prototype. The design and construction of the scale model is presented. Longitudinal structural responses obtained from the finite element analysis and shaking table tests are compared. The seismic mitigation effects of viscous dampers are examined through shaking table tests.

Seismic Response of Pile Groups Improved with Deep Cement mixing Columns in Liquefiable Sand: Shaking Table Tests

2021 ◽  
Author(s):  
Dingwen Zhang ◽  
Anhui Wang ◽  
Xuanming Ding
Keyword(s):  
Seismic Behavior ◽  
Lateral Displacement ◽  
Bending Moment ◽  
Pile Group ◽  
Shaking Table ◽  
Excess Pore Pressure ◽  
Shaking Table Tests ◽  
Pile Groups ◽  
Acceleration Response ◽  
Table Model

A series of shaking table model tests were performed to examine the effects of deep cement mixing (DCM) columns with different reinforcement depths on the seismic behavior of a pile group in liquefiable sand. Due to the DCM column reinforcement, the fundamental natural frequency of the model ground increases noticeably. The excess pore pressure of soils reduces with the increase of reinforcement depths of the DCM columns. Before liquefaction, the acceleration response of soils in the improved cases is obviously lower than that in the unimproved case, but the acceleration attenuation is greater after liquefaction in the unimproved case. Moreover, the lateral displacement of the superstructure, the settlement of the raft, and the bending moment of the piles in the improved cases are significantly reduced compared to those in the unimproved case, and the reduction ratios rise with the increase of reinforcement depth of the DCM columns. However, reinforcement by the DCM columns may result in the variation of the location of the maximum moment that occurs in the pile.

Shaking table tests on seismic behavior of the underground loess cave of earth building of traditional dwellings

2020 ◽  
Vol 207 ◽  
pp. 110221
Author(s):  
Jianyang Xue ◽  
Xiangbi Zhao ◽  
Fengliang Zhang ◽  
Dan Xu ◽  
Xiaofeng Hu ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Shaking Table ◽  
Shaking Table Tests

Shaking table tests on seismic behavior of ancient timber structure reinforced with CFRP sheet

2019 ◽  
Vol 197 ◽  
pp. 109405 ◽  
Author(s):  
Xiang-bi Zhao ◽  
Feng-liang Zhang ◽  
Jian-yang Xue ◽  
Lin-lin Ma
Keyword(s):  
Seismic Behavior ◽  
Timber Structure ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Cfrp Sheet

scholarly journals Shaking Table Tests on Earthquake Response Characterization of a Complex Museum Isolated Structure in High Intensity Area

2016 ◽  
Vol 2016 ◽  
pp. 1-23 ◽  
Author(s):  
Wenguang Liu ◽  
Chuan Qin ◽  
Yang Liu ◽  
Wenfu He ◽  
Qiaorong Yang
Keyword(s):  
Structural Model ◽  
Base Isolation ◽  
Shaking Table ◽  
Isolation Effect ◽  
Structural Safety ◽  
Functional Requirements ◽  
Shaking Table Tests ◽  
Earthquake Intensity ◽  
Long Span ◽  
Museum Design

Owing to special functional requirements of museum, such as great space and story height for exhibitions, large floor slab openings in plan and long span truss in elevation are becoming increasingly considered in museum design, which leads to challenges to structural safety. The aseismic performance of an isolated museum structure in high earthquake intensity regions was thus studied because of its complexity and irregularity. In order to observe the seismic characteristics and verify isolation effect, shaking table tests of a 1/30-scale structural model with and without base isolation bearings have been carried out under minor, moderate, and major earthquakes. The experimental results show that isolated structure dynamic characteristics and isolation effect are stable and storey peak acceleration responses of superstructure are less than that of fixed structure. Storey drifts of isolated structure meet required limits stipulated in Chinese design code and torsion responses of the bearings are not remarkable. It is suggested that seismic performances of complex museum structures have been effectively improved with isolation in use.

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