Study on a new shear wall system with shaking table test and finite element analysis

Author(s):  
Xilin Lu ◽  
Xiaohan Wu
2011 ◽  
Vol 261-263 ◽  
pp. 1619-1624
Author(s):  
Pei Zhen Li ◽  
Jing Meng ◽  
Peng Zhao ◽  
Xi Lin Lu

Shaking table test on soil-structure interaction system in harder site condition is presented briefly in this paper. Three-dimensional finite element analysis on shaking table test is carried out using ANSYS program. The surface-to-surface contact element is taken into consideration for the nonlinearity of the state of the interface of the soil-pile and an equivalent linear model is used for soil behavior. By comparing the results of the finite element analysis with the data from shaking table tests, the computational model is validated. Based on the calculation results, the paper gives the seismic responses under the consideration of soil-structure interaction in harder site condition, including acceleration response, contact analysis on soil pile interface and so on.


1999 ◽  
Vol 26 (6) ◽  
pp. 746-759 ◽  
Author(s):  
Xilin Lu ◽  
Huiyun Zhang ◽  
Zhili Hu ◽  
Wensheng Lu

In this paper, the dynamic response of a very complex structure which has U-shaped floors and specially shaped slant columns is described. Shaking table tests of a scale model of the building were carried out to verify the safety of the structure and to confirm the results of a finite element analysis of the building. The elastic finite element analysis was done with the help of Super-SAP 93, a well-known structural analysis program. From the shaking table test and the finite element analysis, the dynamic characteristics of the building and its maximum responses were evaluated. In the elastic region, the analytical results were in good agreement with the test results. At the end of this paper, some suggestions are given for engineering design of this type of structures.Key words: shaking table test, structural model, slant column, U-shaped plan, finite element analysis, seismic response.


2016 ◽  
Vol 2016 ◽  
pp. 1-13
Author(s):  
Tianbo Peng ◽  
Ning Guo

The pounding issue between decks in the earthquake has been a great concern of many researchers, but the research on the deck-pier pounding issue was inadequate. In this paper, a simplified SDOF method was proposed to study the issue for simply supported girder bridges. Theoretical analysis, shaking table test, and finite element analysis were conducted to study the applicability of the simplified SDOF method in longitudinal deck-pier poundings. A whole structural model and a SDOF model for the longitudinal pounding issue were also established to study influences of the pier stiffness and the pier mass on longitudinal pounding responses. It is shown that the simplified SDOF method can estimate the pounding force and deck displacement fairly accurately for almost all cases. The pier mass has little effect on pounding responses except for bridges with very rigid piers, but the pier stiffness has a great influence. The larger the pier stiffness is, the higher the peak pounding force is.


Author(s):  
Yoshiyuki Miyauchi ◽  
Tomoyo Taniguchi ◽  
Teruhiro Nakashima ◽  
Junichi Hongu ◽  
Daisuke Okui

Abstract Two unanchored vinyl chloride scale tank models, whose diameter, height and thickness of their shell and base were 860 mm, 400 mm and 0.5 mm respectively, were set on a shaking table for experiencing the horizontal motion. These scale tank models satisfy law of similarity to have an equivalent strain under the action of loads. The first scale tank model has no stiffeners on its cylindrical shell that allows out-of-round deformation of the cylindrical shell during the shaking table test. To understand effects of the out-of-round deformation of the cylindrical shell on the tank uplift, the sweeping test is carried out. The Operational Modal Analysis clarifies that the out-of-round deformation of the cylindrical shell enhances the uplift displacement by denting a part of cylindrical shell. The second scale tank model has the multi-stage stiffeners on its cylindrical shell to prevent its out-of-round deformation during the shaking table test. The primary purpose of the second test is to verify applicability of the explicit finite element analysis for analyzing the tank rocking motion. The time history of the uplift displacement of the tank base during a seismic excitation is measured and compared with that computed by the explicit finite element analysis. The comparison shows that the explicit finite element analysis adequately reproduces the tank rocking behavior.


2012 ◽  
Vol 166-169 ◽  
pp. 2412-2418
Author(s):  
Chun Hui Li ◽  
Hong Quan Li ◽  
Jin Bao Ji ◽  
Yang Qiang Fu ◽  
Fang Fang Li

we carried out shaking table tests for 2 layers of a residential brick structure with 1/2 reduced-scale. At the same time, the model structure is studied by finite element analysis with ANSYS. The dynamic response of structure under different seismic excitation and cracking destruction rules were compared and analyzed, seismic vulnerability for the type of brick mixes structures were summarized.. At end, in the light of this type of structure we give the suggestions and measures of aseismatic reinforcement.


Author(s):  
Jim Xu ◽  
Jinsuo Nie ◽  
Charles Hofmayer ◽  
Syed Ali

This paper describes a finite element analysis to predict the JNES/NUPEC cyclic and shaking table RC shear wall test data, as part of a collaborative agreement between the U.S. NRC and JNES to study seismic issues important to the safe operation of commercial nuclear power plant (NPP) structures, systems and components (SSC). The analyses described in this paper were performed using ANACAP reinforced concrete models. The paper describes the ANACAP analysis models and discusses the analysis comparisons with the test data. The ANACAP capability for modeling nonlinear cyclic characteristics of reinforced concrete shear wall structures was confirmed by the close comparisons between the ANACAP analysis results and the JNES/NUPEC cyclic test data. Reasonable agreement between the analysis results and the test data was demonstrated for the hysteresis loops and the shear force orbits, in terms of both the overall shape and the cycle-to-cycle comparisons. The ANACAP simulation analysis of the JNES/NUPEC shaking table test was also performed, which demonstrated that the ANACAP dynamic analysis with concrete material model is able to capture the progressive degrading behavior of the shear wall as indicated from the test data. The ANACAP analysis also predicted the incipient failure of the shear wall, reasonably close to the actual failure declared for the test specimen. In summary, the analyses of the JNES/NUPEC cyclic and shaking table RC shear wall tests presented in this paper have demonstrated the state-of-the-art analysis capability for determining the seismic capacity of RC shear wall structures.


2014 ◽  
Vol 610 ◽  
pp. 78-83
Author(s):  
Ji Gang Zhang ◽  
Zhi Wei Jiang

Offshore platform rocking wall system and tuned mass damper are briefly introduced, and the paper integrates the advantages of these two kinds of seismic method, and the TMD is attached to the jacket offshore platform - rocking wall system, using the ANSYS for finite element analysis, and the analysis results are optimized. The results show that compared with the offshore platform - rocking wall system, additional TMD can give full play to the performances of the two kinds of seismic methods, which is remarkable.


2012 ◽  
Vol 446-449 ◽  
pp. 203-207
Author(s):  
Tie Mei Zhu ◽  
Yan Hua Ye ◽  
Wei Wei ◽  
Wei Qing Liu ◽  
Zi Jun Wang

A new composite structure system is proposed in this paper to suit the demand of building energy conservation and heat preservation. Based on the low reversed cyclic loading test, the non-linear finite element (FEM) analysis model of composite shear wall is established by ANSYS so as to study crack status, stress variation characteristics and failure process under the action of horizontal loading. The results of ANSYS finite element analysis show good agreement with the test results.


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