Abstract
A new type of post for the bridge beam-type railing has been developed using the extruded multi-follow-type shape of aluminum-alloy to have the improved landscape and permeability following the bridge railing specifications. First, dynamic impact tests using a steel heavy ball and numerical analyses simulation have been performed for model posts made from aluminum alloy plate to determine the multi-hollow-type sectional dimensions. Then, extruded posts have been tested and analyzed to prove the dynamic performance. The new type of aluminum-alloy extruded post has a good performance even subjected to the dynamic impact using a heavy steel ball. Finally a collision analysis has been done between a vehicle and a newly developed railing to prove the safety and guide performance.
