Construction Technology of Bailey Beam Support System for High-altitude Large-span Concrete Corridors
In order to solve the construction problem of high-altitude large-span concrete corridor support,taking the Daming Road project of Nanjing Xinxing Development Group as an example,the whole process of installation and demolition of Bailey beam support system is studied and analyzed.In the construction process of prestressed concrete corridor,the internal concrete corbel is used to support and distribute the main beam,so as to support and strengthen the original concrete structure,so that the structural beam can be directly used as the bearing of Bailey beam support system.The Bailey beam is installed in place by dragging and pulling,and is dismantled by local decomposition+overall lifting and landing in the later stage.The finite element software MIDAS Civil is used for construction simulation analysis.The analysis results show that the Bailey beam has a high safety reserve during the dragging process and can meet the dragging construction requirements.By simulating and analyzing the change of the stress state of the Bailey beam support system before and after the load is applied,it can be seen that the Bailey beam platform can ensure the safe construction as a high-altitude corridor support system.
corridorsBailey beamsupport systeminstallationdemolitionfinite element analysisconstruction
万方数据
维普
