Reinforcement Effect Analysis And Performance Evaluation Of Bent Fram Structure In Service

Large-scale trestle structures are used in industrial plants,multi-storey car parks,ports,terminals,municipal projects.Because of the harsh conditions,these structures is often long-term environmental corrosion medium,subjected to wind,sun,rain,Splash,alternating wet and dry,harsh chemical erosion atmosphere,making the destruction of concrete structures such as acceleration,steel corrosion,cracks appear girders,concrete spalling and other diseases,resulting in reduced carrying capacity rapidly,durability dramatically shortened.How to evaluate the performance of the detection of this type of structure,there are serious defects or inadequate bearing capacity of such structures how reinforcement,as well as how to test reinforcing effect,these are the hot focus to explore in the the structure area in recent years.(1)Based on the available information on previous relevant for such structural features,full consideration to the actual state of the current structure,a general resistance formula of trestle structure is worked up due to introduction of some new factor,a new resistance-load effect vvaluation method is proposed based on the detection result of the structure.(2)Based on a real project,a structural inspection is conducted,furthermore,the resistance? load effects are calculated and compared,Main beam carrying capacity does not meet the requirements in current situation.(3)The solid model of reinforced concrete beam is established by ANSYS software,and the dynamic analysis of the structure under the moving load is carried out under the condition of multi working condition,and some useful results are obtained.(4)Bonded steel Reinforcement of this project was designed and constructed,and a load test was conducted to verify the results of reinforcement,and a good effect was showed.