Abstract The aim of the present research is to increasing stiffness structure against lateral loading. In study increase we have four load resisting elements are considered such as shear wall, core bracing system and tube in compare all models with bare frame structure. Here an ordinary moment building G+13 stories located over a medium soil considered. symmetric number bays will be kept 5 alon...

Hexagrid structural system is an innovated system with structural behavior which is similar to a tubular system. In this paper, a numerical study is conducted to estimate the seismic performance of horizontal hexagrid concerning the combined horizontal and vertical hexagrid, tubular and diagrid structural systems. First 30 and 50 story buildings are modeled using ETABS, then pushover and nonlin...

Reinforced concrete walls are commonly used as the primary lateral force-resisting system for tall buildings. As the tools for conducting nonlinear response history analysis have improved and with the advent of performancebased seismic design, reinforced concrete walls and core walls are often employed as the only lateral forceresisting system. Proper modelling of the load versus deformation be...

The nonlinear seismic responses of 3D steel buildings with perimeter moment resisting frames (PMRF) and interior gravity frames (IGF) are studied explicitly considering the contribution of the IGF. The effect on the structural response of the stiffness of the beam-to-column connections of the IGF, which is usually neglected, is also studied. It is commonly believed that the flexibility of shear...

In either elastic or dissipative seismic design of structures, key issue is the optimal design of the lateral load resisting system. Beside the basic effort to provide economical structure, proper overall behaviour with global ductility cannot be achieved without optimized design of the seismic resistant system. In this paper, development of a numerical optimization algorithm is presented and –...

This paper presents a research study about timber shear walls, with materials commercially available in Costa Rica. With new developments engineered timber, the Rican Seismic Code included chapter on structures, defining diaphragms and walls as part of lateral resisting system. A was then carried out, objective determining structural behavior typical wall. Twelve specimens were constructed test...

Selection of wind force resisting system is an important decision in the design tall buildings, especially for those located hurricane prone regions. Rigid frames, shear walls, braced framed tube, bundled tube and hybrid are common structural forms used to resist lateral forces produced due wind. Cables have a great potential be as element. Cable stayed hanging bridges guyed towers applications...

Water storage tanks not designed explicitly for seismic loading could require retrofit. One of the common ways of retrofit include some structural change in the lateral load resisting system that could be expensive and requires the tank to be out of service for relatively long time. This paper introduces a novel method to reduce seismic demand on tank’s wall without structural intervention. Thi...

Building structures are subject to displacement under the influence of forces resulting from earthquake. The most common method of controlling such displacements in steel structures, which are usually of lateral type, is the use of braces. Depending on designing requirements and feasibility, braces are available in various forms. Configuration of bracing systems is generally of concentric or ec...