Simplified seismic design approach for hysteretic dampers incorporated in steel portal frame piers

This paper describes a study into the fire behaviour of steel portal frame buildings at elevated temperatures using the finite element programme SAFIR. The finite element analysis carried out in this report is three dimensional and covers different…

Light-weight steel portal frames were tested under vertical and cyclically horizontal loads, where the maximal width-to-thickness ratios of web reached 94.05, exceeding the limitation by current code of 'Code for seismic design of buildings'(GB…

This paper evaluates an alternative seismic design approach for steel structures that concentrates damage in easy-to-replace steel energy dissipation devices and protects the main structural members from yielding with capacity design rules. This…

A new self-centering damage-free seismic resisting system is proposed for steel portal-frame type bridge piers by applying post-tensioned energy dissipating connections (PTED connections) to the beam-to-column connections together with the…

In order to ensure the safety of steel bridge piers against earthquakes, their inelastic response up to collapse needs to be predicted accurately. An evolutionary-degrading (E-D) hysteretic model was found to fulfill this need with very little…

This paper presents an experimental work on the cyclic behavior of bolted and welded beam-to-column connections in steel portal frame. Three types of connection were used; tests for each specimen were performed twice in order to maintain test…

This paper presents a simplified seismic design and analysis method for buildings equipped with nonlinear fluid viscous dampers (FVD). The design procedure for building incorporating nonlinear FVD is proposed based on Chinese design response…

The effectiveness of hysteretic passive devices to protect and mitigate the response of a structure under seismic loading is well established by both analytical and experimental research. Nevertheless, a systematic and well-established methodology…

This paper evaluates the hysteretic behavior of an innovative compressed elastomer structural damper and its applicability to seismic-resistant design of steel moment-resisting frames (MRFs). The damper is constructed by precompressing a…