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Development of a Remotely Collaborative Pseudo-Dynamic Testing Platform for Bridge Structures

Author: ZengDong
Tutor: GuoYuRong
School: Hunan University
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Remote collaborative Pseudo-dynamic test Test platform Nonlinear Bridge
CLC: U446.1
Type: Master's thesis
Year: 2009
Downloads: 60
Quote: 0
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Abstract


Bridge as an important social infrastructure, the performance of its earthquake has been a serious concern to improve the seismic performance of the bridge structure to reduce earthquake losses, one of the basic measures to strengthen security in the region. Due to the complexity of the earthquake mechanism and structure in a highly nonlinear under strong earthquake, especially for large complex structure, existing analytical tools more difficult to accurately simulate the force acts. Structure remote collaborative test the overall seismic performance of the large-size bridge structure provides a way to carry out large span. This method breaks the limitations of a single laboratory resources, multiple laboratories are combined to form a powerful network structure laboratory via the Internet, to improve the testing capacity and reach test resources shared purpose. In this paper, the previous remote collaborative trials research for the bridge structure the remote pseudo dynamic test, respectively, from the communications platform, finite element numerical analysis, remote test the principle of the division of the sub-structure and realization method to be investigated further. 1, starting from the point of view of the remote test introduced to realize remote collaborative intends dynamic test data transmission in network communication platform NetSLab as well based NetSLab the programming; gives a NetSLab-based communications test program for remote test procedures Developer Reference. Bridge structure elastoplastic seismic response analysis program research. Considering stiffness degradation of three linear restoring force hysteresis model, the derivation of the restoring force model of the plastic hinge stiffness; conducted a series of verification and analysis program, an example of a three-span beam bridge seismic response example, with SAP2000 The calculated results were compared with the results of the accuracy of the procedures in this article, finite element numerical analysis of the basis for the development of remote pseudo-dynamic test platform. 3, the bridge structure remote collaborative research and development proposed dynamic test platform. Bridge structure of remote collaborative pseudo-dynamic test methods; derivation of the dynamic equations of the overall structure of the bridge truss structure model in any selected piers and bearing substructure; preparation of various functional modules of the platform to deal based on NetSLab developed test platform in The network interrupt the trial and in the communication process, test data loss failure, and use the platform for a series of remote virtual test, to verify the effectiveness of the platform. 4, combined with the launching of the remote collaborative test, improve and promote the application of remote collaborative pseudo-dynamic test platform; and proposed the remote test further research work.

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridge test observations with the test > Bridge test equipment
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