Design analysis and monitoring for steel-SRC composite conversion truss with vierendeel truss
Aiming at a steel-SRC composite conversion truss structure with steel upper chord,steel web member and lower chord,the elastic comparative analysis and static pushover analysis of multiple overall models of the composite conversion truss and its upper vierendeel truss were carried out by PKPM software.The results show that the construction simulation method,the floor panel stiffness simulation method,the creep of concrete vierendeel truss members,and the hinge situation under medium and large earthquakes have a great influence on the calculation value of the conversion load shared by conversion truss and vierendeel truss.The relevant factors should be enveloped and accurately considered.For the structural system composed of multiple substructures,the role of each substructure in the whole and the quantitative changes of each substructure under the change of relevant factors should be clarified to ensure the performance stability of each substructure and the safety of the whole structure.The monitoring of the construction stage shows that the deformation and component strain of the composite conversion truss structure with vierendeel truss are basically consistent with the design expectations,and the conversion structure is safe and reasonable.
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