Earthquake loss estimation in composite-steel moment resisting frames (MRFs) necessitates a proper of the level damage steel beam-to-slab connections. These usually feature welded headed shear studs to ensure composite action between concrete slab and beam. In partially beams, earthquake-induced surrounding occurs due stud slip demands. Within such context, this paper proposes slip-based fragil...

The behaviour of beam-column joint plays an important role in the response of a steel moment resisting framed structure especially under seismic excitation. Semi rigid connections like bolted joints, allow better energy dissipation and provide good response under lateral loads. In this paper the ductility and energy dissipation characteristics of semi rigid bolted connections using double web a...

Nowadays, many buildings with steel Moment Resisting Frames (MRF) are built in seismic zones when seismic codes are at its early stages of development, and as such, these structures are often designed solely to resist lateral wind loads without providing an overall ductile mechanism. On the other hand, current seismic design criteria based on hierarchy of resistance allow enhancing the structur...

Most seismic codes specify empirical formulas to estimate the fundamental vibration period of buildings. Evaluated first in this paper are the formulas specified in present US codes using the available data on the fundamental period of buildings “measured” from their motions recorded during eight California earthquakes, starting from the 1971 San Fernando earthquake and ending with the 1994 Nor...

Abstract Currently, there is no “timber moment frame structural system,” as the basic glulam beam‐to‐column connections (usually represented by bolted with slotted‐in steel plates) offer limited rotational stiffness such that they are usually treated pin connections. This paper proposes an innovative type of moment‐resisting connection reinforced long rods screwheads (LSRSs) and self‐tapping sc...

The purpose of this research was to evaluate the nonlinear dynamic response of rigid and semi-rigid steel frames under Far-Fault Earthquake Records. Accordingly, the fragility curve of the moment frames with rigid and semi-rigid connections was determined. Considering the analytical knowledge of structures in the past, the analysis and design of steel frames based on the assumptions of rigid or...

ABSTRACT:The design of structures subjected to natural hazards such as earthquakes and typhoons demands safety of structures which is governed by the natural frequencies and the amount of damping in each mode of vibration. Fundamental frequency of a building and its damping have a remarkable effect on the magnitude of its response. The ability to predict these characteristics at the design stag...

Designing prequalified connections is a process of iterative calculation, in which certain dimensions are varied until the verifications and restrictions stipulated by standard met. This slow that can be automated using various software optimized new design method called generative design, consists establishing so script delivers multiple solutions meet objectives. research was conducted based ...