Improvement for SPMT in lifting prestressed reinforced concrete truss structure and steel-concrete composite truss structure

Abstract

This paper presents a new SPMT vehicle structure. In order to simulate the actual effect of the new SPMT vehicle structure, based on the calculation assumption of plane truss, this study uses two kinds of plane truss forms to model the reinforced concrete truss and steel-concrete composite truss with different sections, and utilizes Midas software to simulate and analyze. It compares the internal force of different trusses when uses SPMT with steel brackets and ordinary SPMT to jack trusses from joints of lower flange which are not at either end of the truss respectively. Based on the internal force of the trusses, the advantages of using SPMT with steel brackets for jacking and the reliability of the steel brackets are analyzed.