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| Research on Protective Measures for Highway Bridge Crossing High - speed Railway |
| LI Ji - Iin1，SUN Zong - Iei2，LIU Hong - zhan2 |
| 1. Engineering Management Center of MOR，Beijing 100844 ； 2. The Third Railway Survey and Design Institute Group Corporation, Tianjin 300142，China |
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Abstract Research purposes: At present, there are many built highway bridge and the bridges under construction to cross the railway. With the development of local economy, there will be more and more highway bridges to cross the railway and at the same time, the new high - speed railway will inevitably under - pass the existing highway. The protective measures for the highway bridge crossing the high speed railway directly affect the high - speed railway safety. This paper discusses the protective measures for the highway bridge to cross the railway and the railway to under - pass the existing the highway bridge for making the measures more safe, more reliable and more operable.
Research conclusions :(1) The design load should be appropriately increased According to the actual road conditions and the highest grade SS of the anti - collision should be adopted. (3 ) The anti - throwing network of full - closed form or semi - closed form can be determined according to the position of the highway bridge. (3) The anti - collision and anti - throwing network can be rebuilt according to the real engineering requirement, or the scheme of the more safe, reliable and operable strong rigid frame bridge can be used for the existing highway bridge.
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Received: 05 February 2013
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2013, Vol. 30 
