Design and Optimization of HA Level 3-beam Assembled Bridge Barrier
Li Qince;Gong Shuai;Yu Danfeng;Yang Fuyu;
In order to improve the protection capability of the highway barrier for large vehicles in some special dangerous sections, and based on the relative standards and specifications, a kind of 3-beam assembled bridge barrier is proposed through optimizing the construction convenience and economy, and according to the impact test of vehicle verifying the barrier structure of a 3-beam assembled bridge. Its safety and protection performance is analyzed by the technological means of finite element simulation.The result shows that the optimized structure has the equivalent or preferable safety performance index of the bridge barrier verified by the impact test. The protection level can reach the HA level. The study result shows that the large vehicles can be protected well in the special dangerous sections, and it can effectively reduce the accidental severity of the large transport vehicles falling under the bridges because of crossing or throwing over the side bridge barrier.
【CateGory Index】： U443.7