Pile Foundation Analysis of Ground Motion Transfer Law

2011 ◽  
Vol 368-373 ◽  
pp. 2915-2918
Author(s):  
Chun Yuan Liu ◽  
Dong Kun Sun ◽  
Ming Feng Han
Keyword(s):  
Pile Foundation ◽  
Seismic Waves ◽  
Programming Model ◽  
Shaking Table ◽  
Soil System ◽  
Measuring Point ◽  
Different Types ◽  
Table Model ◽  
Shaking Table Model Test ◽  
Matlab Programming

Based on shaking table model test, each response of the pipe models is obtained by inputting different types, amplitudes, frequencies of seismic waves and white noise excitation. The transfer function of the measuring point related to the vibration table, natural frequency of soil and pile, power spectrum and other parameters are obtained by Matlab programming model. By applicating SeismoSignal the propagation of seismic waves in the soil was gotten. Reveal the regulation of the propagation of the seismic waves in the pile-soil system. Investigate dynamic characteristics and dynamic response of the pile and soil in the earthquake and the transfer laws of the seismic wave energy. Provide a useful reference for the pile foundation seismic design.

Shaking Table Model Test for Vertical Seismic Response of Bent-Type Aqueduct

2010 ◽  
Vol 163-167 ◽  
pp. 4156-4164 ◽  
Author(s):  
Qiu Hua Duan ◽  
Meng Lin Lou
Keyword(s):  
Model Test ◽  
Seismic Waves ◽  
Dynamic Effect ◽  
Hydrodynamic Pressure ◽  
Shaking Table ◽  
Vertical Acceleration ◽  
Modal Damping ◽  
Earthquake Resistant Design ◽  
Table Model ◽  
Shaking Table Model Test

Based on the shaking table model test of a bent-type aqueduct on the rigidity foundation, the dynamic characteristics and seismic performance of the aqueduct structure subjected to vertical seismic waves are discussed. The test indicates that (1) Water in the aqueduct makes the mass of the structure larger and the frequency of the model structure lower. The water in aqueduct makes fundamental frequency of the model reduce 32% and the modal damping increase 38.5% averagely. (2)The hydrodynamic pressure response at the bottom of the aqueduct is the highest. (3)The dynamic effect of El waves on the aqueduct structure is greater than that of all SEW waves. (4) Different types of earthquake waves have different frequency spectrum characteristics, so that the aqueduct model responses differently to different waves. (5) The water in the aqueduct sometimes plays a role as TLD damping in certain scope. If surpassing this scope, the water sloshing makes the vertical acceleration response of the aqueduct increase. The results of the test not only lead to some significant conclusions for the earthquake-resistant design of large bent-type aqueducts, but also provide a ground for further studies on the effects of soil-pile-aqueduct interaction.

Shaking Table Model Test of Loess Tunnel Structure under Rainfall

2021 ◽  
Author(s):  
Xinhai Zhou ◽  
Xuansheng Cheng ◽  
Lei Qi ◽  
Ping Wang ◽  
Shaofeng Chai ◽  
...  
Keyword(s):  
Model Test ◽  
Shaking Table ◽  
Tunnel Structure ◽  
Table Model ◽  
Shaking Table Model Test

Experimental Study on Non-Perpendicular Frame Structure of Tall Building

2008 ◽  
Vol 400-402 ◽  
pp. 593-598
Author(s):  
Wei Xing Shi ◽  
Cheng Qing Liu ◽  
Xi Lin Lu ◽  
Song Zhang ◽  
Ying Zhou
Keyword(s):  
Similarity Theory ◽  
Structural Type ◽  
Shaking Table ◽  
Frame Structure ◽  
Scale Model ◽  
Prototype Structure ◽  
Table Model ◽  
Practical Engineering ◽  
Whiplash Effect ◽  
Shaking Table Model Test

A shaking table model test is conducted for Guangzhou West Tower to study its seismic behavior in State Key Laboratory for Disaster Reduction in Civil Engineering at Tongji University. Guangzhou West Tower adopts a new structure system and the significant characteristic of this system is the non-perpendicular frame arranged around the building, acting both as columns and bracings. Based on the similarity theory and member equivalent principle，a 1/80 scale model of this building is made of polymethyl methacrylate(PMMA). The model’s dynamic characteristics, earthquake-resistant behavior, responses of acceleration and deformation under different wave peak values are investigated, then the seismic responses of the prototype structure are deduced and analyzed. The whiplash effect of the prototype structure is studied, and the weak position of the structure is found out. The experiment results demonstrate that it is feasible to apply this structural type to practical engineering. Finally, some suggestions for the engineering design of the prototype structure are put forward.

scholarly journals Shaking Table Model Test and Seismic Performance Analysis of a High-Rise RC Shear Wall Structure

2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Shujin Li ◽  
Cai Wu ◽  
Fan Kong
Keyword(s):  
Seismic Performance ◽  
Model Test ◽  
Shaking Table Test ◽  
Technical Specification ◽  
Shaking Table ◽  
Scale Model ◽  
Wall Structure ◽  
High Rise ◽  
Table Model ◽  
Shaking Table Model Test

A building developed by Wuhan Shimao Group in Wuhan, China, is a high-rise residence with 56 stories near the Yangtze River. The building is a reinforced concrete structure, featuring with a nonregular T-type plane and a height 179.6 m, which is out of the restrictions specified by the China Technical Specification for Concrete Structures of Tall Building (JGJ3-2010). To investigate its seismic performance, a shaking table test with a 1/30 scale model is carried out in Structural Laboratory in Wuhan University of Technology. The dynamic characteristics and the responses of the model subject to different seismic intensities are investigated via the analyzing of shaking table test data and the observed cracking pattern of the scaled model. Finite element analysis of the shaking table model is also established, and the results are coincident well with the test. An autoregressive method is also presented to identify the damage of the structure after suffering from different waves, and the results coincide well with the test and numerical simulation. The shaking table model test, numerical analysis, and damage identification prove that this building is well designed and can be safely put into use. Suggestions and measures to improve the seismic performance of structures are also presented.

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