Detection And Analysis On The Ultimate Bearing Capacity Of The Portal Crane Track Stringer

Based on a certain engineering of Tianjin ports, the portal crane track stringer was detected and analyzed. As the portal crane track stringer was upgraded and transformed, so the using actuality and cracking load of the beam was urgently to be known.The main work includes the following aspects:1, The ultimate bearing capacity research present situation of the portal crane track stringer was made a summary. The concept of ultimate bearing capacity of concrete and how to calculate the ultimate bearing capacity of high-pile wharf crossbeam were included.2, The detection work of portal crane track stringer.3, Research on the method of calculating the cracking load of portal crane track stringer by standard method.4, Research on the method of calculating the cracking load of portal crane track stringer by finite element method. The cracking load was analyzed by the finite element analysis software ANSYS based on a practical engineering. The separate type model built method was employed to establish the reinforced concrete finite element model. Finally the cracking load was calculated and determined by applying load step by step.5, Research on compiling finite element program to calculate the cracking load of portal crane track stringer. Using the secondary development tool in ANSYS—APDL programmer to compile finite element program to calculate the ultimate bearing capacity of high-pile wharf crossbeam. The ultimate bearing capacity of different high-pile wharf crossbeam can be calculated by changing their cross section parameters and so on.