Many parameters affect the behavior of tall buildings under seismic loads, some which are main shock-after shock records and using lateral load resistance systems in reinforced concrete buildings. End shear walls a kind walls, connecting their end This study was conducted on two 30-story structures, were subjected to sequences far fault analyzed by nonlinear time history analysis. The results i...

In this paper, an efficient technique is presented for static analysis of tall buildings with combined tube-in-tube and outrigger-belt truss system while considering shear lag effects. In the process of replacing the discrete structure with an elastically equivalent continuous one, the structure is modeled as two parallel cantilevered flexural-shear beams that are constrained at the outrigger-b...

The damping ratio is an important parameter in dynamic analyses and plays a key role the design of building structures. Elastic response spectra are widely used this to describe earthquake action specific site classes. 5% damped generally for most conventional However, other types structures may not have can much lower or larger ratios. recommended at about concrete whereas it estimated 2% stee...

In this paper, the seismic responses control characteristics of Mega-structure, Mega-sub Controlled Structure System (MSCSS) without dampers and MSCSS inserted friction dampers are investigated respectively under rare earthquake by using the elastic-plastic time history analysis method. The distribution of plastic hinges and different control efficiency of these structures under rare earthquake...

The paper discusses a study on the application of intelligent agents (IAs) to conceptual designing. It provides an overview of the state-of-the-art in the areas of ontologies and IAs. Next, the system Disciple, a learning intelligent agent shell, and system Inventor 2001, evolutionary design support tool, both developed at George Mason University, are briefly presented. Further, the paper intro...

The collision between adjacent buildings with an insufficient seismic separation distance has been reported after earthquakes. This buildings, commonly referred to as earthquake-induced pounding, entails huge damages the involved buildings. main cause of damage was interpreted developed impact forces colliding intensity force relies on many factors, therefore, a significant research effort foun...