1. Abstract In this paper, a genetic algorithm is proposed for discrete minimal weight design of steel planar frames with semi-rigid beam-tocolumn connections. The frame elements are constructed from a predetermined range of section profiles. Conventionally, the analysis of frame structures is based on the assumption that all connections are either frictionless pinned or fully rigid. Recent lim...

the present study focuses on the performance of precast concrete beam-column dowel connections subjected to cyclic loading by conducting experiments. in this study, one-third scale model of two types of precast and a monolithic beam-column connection were cast and tested under reverse cyclic loading. the precast connections considered for this study is a beam-column connection where beam is con...

The objective of this study is to evaluate the flexural behaviour stainless-steel fibre-reinforced concrete beam-column (BC) joints under reverse cyclic loading. Based on properties with various percentages fibre, optimized volume fraction was obtained as 0.75% fibre. In present work, two sets and without fibres were cast tested loaded up five cycles, their behaviour, examine failure pattern jo...

Abstract: The paper illustrates the results of experimental tests performed on sub-assemblages of R/C (Reinforced Concrete) existing structures, designed only for gravity loads In order to estimate failure mechanisms and ductility properties, four internal and external R/C beam-column joints were built and tested. The specimens were built by using concrete with low strength and smooth reinforci...

To study the laws of evolution dynamic increase factors (DIFs), relationship between DIFs and progressive collapse resisting capacity a structure with web cleat joints under column removal scenario, refined finite element model is established based on an existing quasi-static test. The are studied for different loading type, beam height, joint rotation stiffness. It was observed that displaceme...

It is widely accepted that the seismic retrofitting of nonseismically detailed reinforced concrete beam-column joints (BCJs) in (RC) frame buildings an urgent necessity due to its high vulnerability and potential consequences events. As a result, considerable effort has already been put into developing efficient practical solutions for such BCJs. Most existing techniques, however, are based on ...

This paper proposes a new mechanics-based model for the seismic design of beam-to-column panel zone joints in steel moment-resisting frames. The is based on realistic shear stress distributions retrieved from continuum finite element (CFE) analyses representative geometries. Comparisons with comprehensive experimental data set suggest that proposed predicts stiffness and strength noteworthy acc...