near-fault ground motions have caused very much damage in the vicinity of seismic sources during recent earthquakes. it is well known that under specific circumstances, intensive ground shakings near fault ruptures may be characterized by short-duration impulsive motions. this pulse-type motion is generally particular to the forward direction, where the fault rupture propagates towards the site...

The cold formed steel section are increasingly used as a structural elements in low rise buildings recent times, due to the advantages like economic production, easy transportation, labor cost and high strength weight ratio. In current work G+3 storied building frame is studied for seismic wind load using Staad-pro software. Light gauge taken beam slab elements. analysis carried out by Equivale...

Under major load earthquakes, reinforced concrete structures designed according to the current codes will experience an inelastic deformation which is difficult predict and control. Performance-based plastic design (PBPD) methodology applied forward in this study. In method, as performance criteria, target drift yield mechanisms are preselected. Based on work-energy balance principle, base shea...

Earthquake events have shown that besides the earthquake forces, interaction between fault rupture and structures could cause a lot of damage. Field observations revealed need to design for fault-induced loading in regions with active faults. In this study, three-dimensional numerical simulation was carried out evaluate performance 20-story frame building subjected propagation normal rupture. A...

This paper investigates the seismic performance of two adjacent buildings connected by viscous dampers. Three types damper placement are discussed, including installing dampers within a single building, connecting at same floor level, and inter-story level. Analytical models established to consider various dynamic properties buildings, theoretical solutions obtained, transmissibility curves, ad...

An integrated seismic monitoring system with a total of 55 channels of accelerometers is now operating at and in the nearby free-field site of the 20-story steel-framed Atwood Building, in highly seismic Anchorage, Alaska. The building has a single-story basement and a reinforced-concrete foundation without piles. The monitoring system comprises a 32-channel structural and a 21channel site arra...

The effect of the vertical component earthquakes on structural behaviour unreinforced masonry (URM) walls is usually not considered by technical codes for ordinary buildings. Recent scientific literature, however, indicates that earthquake may play a significant role in crack pattern URM and their collapse. This paper investigates seismic capacity damage scenario two-story regular wall, describ...

A 5-year study of long-term (40 years) study plots was conducted on the Osceola National Forest in northern Florida to determine how dormant-season fire frequency (annual, biennial, quadrennial, or unburned) affects ground-dwelling macroarthropod use of coarse woody debris in longleaf pine (Pinus palustris Mill.) forests. Pitfall traps were used to sample arthropods near logs or metal drift fen...

The application of control devices in coupled building system has been recently recognized as an effective alternative for seismic protection. In consideration of passive control approach, most of previous studies focused on application of fluid dampers, and the buildings in the coupled systems were in similar structural configuration. By recognizing the potential merits, such as simple in desi...

abstract in this research sand drifts potential using sand rose graph software and fryberger velocity classes’ method investigated. thus wind data between 1985 and 2005 from meteorological stations of jask and kerman were analyzed to examine sand drift potential. sand drift potential amount of kerman station was 412.6 using sand rose graph and 401.09 using fryberger,s method. sand drift potenti...