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【期刊论文】Health monitoring and evaluation management system of Wenhui Bridge
项贻强, XIANG Yiqiang, WENG Shaling, SONG Yu, YAO Yongding
,-0001,():
-1年11月30日
With the fast development of testing techno logy and bridge design and analysis theory, it has great theoretical meaning and practical value to research and explore the method of detecting bridge structural damages, locations and established a health monitoring and evaluation manage ment system of cable-stayed bridge. It prevents occurrence of structural disaster damage and protects structure safe to use. Based on the cable-stayed bridge in the Wenhui road of Hangzhou, a health monitoring and evaluation management system (HMEMS) of cable-stayed bridge is presented and established. Spatial analysis of the cable-stayed bridge by using a large structure FEM analysis program is explored. The method of detecting bridge structural damages and the comprehensive evaluation of the bridge condition are put forward. The corresponding field-testing is made. The results show there is good agreement between the values predicted by the presented system and the field-testing values. The validity of the bridge health monitoring and evaluation management system is further verified.
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项贻强, Yiqiang Xiang and Shou Feng
,-0001,():
-1年11月30日
A comprehensive investigation of the stochastic response of the approach bridge of Sutong Yangtze River Bridge-PC continuous rigid frame box girder bridges subjected to spatially varying ground motions is completed. A frame member system model considering the geometrical non-linearity caused by the dead load state and the soil-foundation-structure interaction effect is presented. The wave passage, incoherence and site-response effects are separately discussed in detail. It is pointed out that each component of the spatially varying ground motion model has important effects on the dynamic behavior of the bridge. Therefore, the variability of the ground motions should be considered in the design of this kind of bridges.
Continuous rigid frame box girder bridge, Spatially varying ground motion, Seismic response, Wave-passage effect, Site-response effect,, Power spectral density
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