Abstract: This paper discusses the rationality of the design force and damping reduction factors adopted by a few seismic design provisions for buildings with and without added passive energy dissipation systems. The issue will first ...

Abstract: Most research studies on inelastic material behavior of steel structures under earthquake ground motions are concentrated on general uniaxial cyclic loading conditions. Very limited attention has been given to the responses ...

Abstract: The mechanical properties of metals in the inelastic range may generally be described by mathematical relationships. Many such constitutive relationships or plasticity models were formulated based on limited experimental ...

Abstract: This paper reports the dynamic responses of a one‐fifth‐scale gable‐frame structure composed of tapered members subjected to El Centro earthquake ground motions, using a shaking table. The test structure was designed ...

Abstract: Experimental studies were conducted on the local bond stress‐slip relationships of deformed bars embedded in confined concrete under monotonic and cyclic loading in the temperature range between −10 °C and −70 °C (+14 °F ...

Abstract: Experimental observations on the effect of freezing cycles on the bond behavior between steel reinforcement and concrete are reported. Specimens that experienced 1, 10, and 30 freezing cycles are tested under monotonic and ...

Abstract: The modulus of elasticity of concrete is a fundamental parameter in analysis and design of reinforced‐concrete structures. The present ACI approach for Young's modulus is based on normal strength concrete. It may not be ...

Abstract: This paper describes an experimental program of study on the sliding characteristics of Teflon‐stainless steel interfaces. The effects of normal pressure, sliding distance, normal pressure history, sliding velocity, sliding ...

Abstract: A modified low-Reynolds-number k-ε turbulence model is developed in this work. The performance of the proposed model is assessed through testing with fully developed pipe flows and recirculating ...

Abstract: Laboratory experiments on the local bond behavior of high‐strength concrete were carried out under monotonic, repeated cyclic and reversed cyclic loading conditions in the temperature range of