this study aims to undertake a statistical study to evaluate the accuracy of nine models that have been previously proposed for estimating the ultimate resistance of plate girders subjected to patch loading. for each model, mean errors and standard errors, as well as the probability of underestimating or overestimating patch load resistance, are estimated and the resultant values are compared o...

Fire has significant effects on the residual resistance of steel structures. It is necessary to accurately clarify its Q690 HSS plate girders, which have been widely used. In this paper, ultimate and effective service girders after a fire are obtained using material tests finite element (FE) analysis including parametric studies, where data 210 models were collected. The four key parameters (hw...

High-strength steels (HSSs) are now used globally in different structural applications because of their constructional and environmental merits. Though, investigations on HSS elements still relatively limited. Herein, the lateral-torsional buckling (LTB) response laterally-unsupported plate girders with stiffened slender webs is explored considering steel S690, which currently under extensive t...

In the summer of 2000, we constructed the four 30-m long straight sections in the SPring-8 Storage Ring. Magnets were rearranged to make long free spaces. New girders were designed, manufactured and installed to the SPring-8 storage ring tunnel. Magnets placed on the girders were aligned on a straight line using CCD camera and laser. A long undulator was installed in one long straight section a...

Externally bonded carbon fiber reinforced polymer (CFRP) laminates are a feasible and economical alternative to traditional methods for strengthening and stiffening deficient reinforced concrete and prestressed concrete girders as shown in Fig. (1). Although extensive research has already been undertaken to investigate the behavior of CFRP strengthened bridge girders, the majority of work condu...

This paper presents the details and relevant findings of an experimental program which was conducted in three phases to investigate the behavior of steel-concrete composite bridge girders strengthened with new high modulus carbon fiber reinforced polymer (HM CFRP) materials. In the first phase, the feasibility of various lIM CFRP strengthening systems was examined. The second phase investigated...