Finite Element Analysis of the Contact Stress of the Rotary Hinge in the Rigid Frame Arch Bridge Constructed in a Vertically Downward Rotating Manner
YAO Guo-wen,CHEN Sheng-hua,ZHOU Zhi-xiang
DOI:10.11835/j.issn.1674-4764.2008.03.014
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2008,Pages -
- Abstract
Rotary hinges are temporary joints connecting arch ribs with the abutments of rigid frame arch bridges during the vertically downward rotating construction process.We probed the mechanical properties of a rotary hinge.Its stress distribution was simulated in contact FEM during the vertically downward rotating construction of a rigid frame arch bridge.The results show that nearly the entire structure of the rotary hinge is in a low-stress state with only a minor area in a high-stress state.By strengthening some local structures,rotary hinge construction security could be satisfied by its mechanical properties during vertically downward rotating construction.