the objective of this paper is to determine the drift demand hazard curves of steel moment-resisting frames with different number of stories in territory of tehran this is done through the combination of the results obtained from probabilistic seismic hazard analysis and the demand estimated through the best probabilistic seismic demand models. to select the best demand model, in this paper, a ...

The adequacy of the directional and envelope procedures for design main wind force resisting system is not well understood. purpose this study to evaluate based on tunnel test data a set low-rise enclosed buildings with gable-shaped roofs in open terrain (Exposure C). base shear conditional reliability index are used determine procedures. was compared each direction horizontal component load wa...

Expansive soils are found abundantly in Ethiopia. This type of is weaker, having low strength and load resisting characteristics nature due to their difficulty volume change when it comes into contact with water. The such becomes swell saturated water shrinks during dry seasons. In civil infrastructure construction, soil either should removed or improved be used as foundation soil. Removing the...

The capacity of a structure can be assessed using inelastic analysis, requiring sophisticated numerical procedures such as pushover and incremental dynamic analyses. A simplified method for the evaluation seismic performance steel moment resisting frames (MRFs) to used in everyday practice has been recently proposed. This evaluates buildings employing an analytical trilinear model without resor...

AODV is a reactive MANET routing protocol that is vulnerable to a dramatic collapse of throughput when malicious intruders flood the network with bogus route requests. We introduce a simple mechanism to resist such attacks that can be incorporated into any reactive routing protocol. It does not require expensive cryptography or authentication mechanisms, but relies on locally applied timers and...

Cross-laminated timber (CLT) is increasingly being used in lateral load resisting systems of multi-storey buildings. Conventional in-plane CLT shear walls can be transformed into core-wall structures with enhanced strength and stiffness when the individual are connected orthogonally. In this paper, experimental studies presented on orthogonal joints self-tapping screws (STS) installed mixed ang...

Abstract Cross-laminated timber (CLT) wall panels are commonly connected to the floor or foundation using metal connections, which play a critical role in determining seismic performance and energy dissipation of CLT shear walls. In this study, comprehend tension–shear coupling effect wall-to-floor angle bracket connections under loads, both monotonic cyclic tests were conducted on brackets tha...

Utilization of pozzolanic materials (fly ash, slag, zeolite, metakaolin, microsilica and more) in the manufacturing of cement and concrete has increased considerably over the last decades. Another option is to use concrete containing sulfate resisting cement. This could help minimize the harmful impacts on concrete exposed to an aggressive environment. The issue of the deteriorative impact of t...