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Verification and Application of Wind Characteristics Measurement System on Long-span Structures

Author: HongJiangBo
Tutor: LuoYaoZhi
School: Zhejiang University
Course: Architecture and Civil Engineering
Keywords: Large span roof Field measurement Wireless sensor Wind pressure pulse Correlation Analysis Power spectrum
CLC: TU317
Type: Master's thesis
Year: 2012
Downloads: 39
Quote: 0
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Abstract


Span spatial structures the past two decades, China has achieved rapid development, and the construction of a large number of typical engineering structures. After decades of research, some of the basic issues involved in the design of large-span structure, such as static analysis, stability in design, construction simulation, have been a better solution. Often play a control role in the design wind load has been slow relative to other types of structures, large span roof surface is mainly affected by the separation of the flow field and re-attached to the role of wind loads become large span roof structure damage the main reason. Therefore, the study has important engineering significance of large-span roof structure wind loading characteristics. Primary means of wind engineering research wind tunnel experiments and numerical simulation method, but because of the \accurately simulate the inlet and outlet boundary conditions, there are still some difficulties. Field measurement is the most basic and the most direct means of research, effective verification and improvement of the methods and results of wind tunnel tests and numerical calculation, but due to the high cost of hard wiring problems at home and abroad on the full-size measured relatively small, the The research group has developed a wind field measured system based on wireless sensor technology, is expected to promote the progress of large span roof structures measured wind field. First details of the research group developed the the wireless wind field measured system hardware and software based on wireless sensor technology. Followed by Zhejiang University ZD-1 wind tunnel laboratory measured wind field system validation mainly include uniform flow and Class B landforms flow field effect of wind speed and direction sensor and air pressure sensor test results with wind tunnel test comparison, test results show that the wireless wind field measured overall system stability, high precision sensor to meet the measured requirements. Finally, the the wireless wind field measured system used in the Style Center of Zhejiang University National Stadium \Analog analysis of two large-span roof structure above the measured wind speed and direction data on large span roof surface wind field characteristics. Measured pressure data, the use of wind pressure coefficient, correlation and power spectrum analysis on large span roof structure wind load characteristics.

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CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Testing and Inspection
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