Analysis of Temperature Effect on Bridges with Special-shaped Steel Arch Tower
The cable-stayed bridge of the special-shaped arch tower is novel,which not only improves the beauty of the bridge,but also brings the problem of complex force.In addition,the effect of temperature effect on the cable-stayed bridge is also more promi-nent.In order to study the special-shaped steel arch tower cable-stayed bridge in different temperature gradient mode and system temperature change under the temperature stress,taking Xiusui Road bridge in Daqing city as an example,the structure temperature ac-tion under the temperature gradient action model specified in the British,the New Zealand,the United States and the Chinese codes was compared respectively.Under the temperature gradient model structure temperature effect,and consider the system temperature change under the bridge structure temperature stress.The results show that the positive section stress of Chinese standard calculation is small,which may be unconservative on some special bridges,which can be considered.Under the gradient temperature and system tempera-ture,the local stress maximum of the span section and the middle pier top section and the arch section of the arch tower,which can be considered in the design.
special-shaped arch towercable-stayed bridgegradient temperaturesystem temperature
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