Abstract: Storm water runoff is perceived as a major source of pollutants that results in adverse environmental effects, but large-scale assessments are rarely conducted. The problem is particularly pronounced in southern California ...

Abstract: In response to tremendous losses in recent storms, there have been considerable efforts to place the design of wood-frame structures built in hurricane-prone regions on an engineering basis. It is assumed that the transition ...

Abstract: The use of precast concrete elements in the construction of highway bridges has been a common practice in the United States since the 1950s. These bridges have generally performed well during the initial years after ...

Abstract: An estimator for the standard deviation of a natural frequency in terms of second-order statistical properties of the parameters of the system is derived. Results for one simple example is ...

Abstract: Structural dynamic responses of elevator counterweight systems with discontinuous connectivity (a large gap) between the counterweights and their frame are evaluated using the finite element techniques. External base ...

Abstract: Structural dynamic responses imposed by large base excitation and the effectiveness of an intermediate constraint in elevator counterweight systems are studied. A nonlinear contact finite element with nonlinear stiffness ...

Abstract: The design of mechanical fasteners such as nails and screws used in light-frame construction typically is based on a single assumed loading mechanism or failure limit state, either withdrawal load or lateral load. Observations ...

Abstract: A nine-degree-of-freedom time domain mathematical model was used to numerically simulate crane ship dynamics. This model considers the elasticity and damping of the hoisting rope assembly and ...