Testing of Plate Girder Web Panel Loaded in Shear at Elevated Temperature

An analytical approach to modelling shear panels in steel beams at elevated temperatures

“…They also proposed empirical amendments to classical tension field theory for web panels with aspect ratios higher than 3. Vimonsatit et al [22,23] extended the classical ambient-temperature tension field model for plate girders, to account for elevated-temperature behaviour, by changing material properties and incorporating the effect of compressive forces due to axial restraint.…”

Deflection behaviour of plate girders loaded in shear at elevated temperatures

“…Before the introduction of current analytical approaches, as a necessary verification, six series of plate girder tests have been conducted by the authors [7,8] in two categories, viz. unrestrained and restrained in the longitudinal direction.…”

“…This model also incorporated the compressive force induced by thermal restraints arising from adjacent unheated structures in fire. To validate this analytical approach, two series of experimental investigations about plate girders have been conducted at high temperatures [7,8]. However, there are no suitable mechanical models to represent the out-of-plane and in-plane deformation characteristics of plate girders under shear force at elevated temperatures.…”

“…The findings will be beneficial for design practice. In the following section, a brief introduction of experimental investigations conducted by the authors [7,8] will be presented first, and then, analytical approaches for plate outof-plane and in-plane deflections will be introduced separately in Sections 4 and 5, also with respective literature review and verification by experimental measurements.…”

Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation

“…Therefore, the fire safety information that is specially established for structural members in buildings might not be applied directly for bridge structural members. There is only limited research that has been carried out on fire resistance of structural members of bridges [5][6][7][8][9][10][11][12]. Most of these studies focused on assessing fire response of steel bridge, while very few of these studies aimed to enhance the fire resistance of steel bridge girders [2,12].…”