Abstract: An energy-based approach has been used to investigate the seismic behavior of code-designed asymmetric-plan systems. The systems considered in this investigation had large eccentricities in both directions, were designed ...

Abstract: Earthquake analysis of bridges requires that the period and damping ratio be determined for each significant mode of vibration. Data on these vibration properties, identified from motions of bridges recorded during actual ...

Abstract: This paper presents development of a simplified procedure for seismic evaluation of piles with partial-moment connection typically used in marine oil terminals. The current seismic evaluation procedure of the piles in ...

Abstract: The effects of plan asymmetry on the earthquake response of code‐designed, one‐story systems are identified with the objective of evaluating how well these effects are represented by torsional provisions in building codes. ...

Abstract: The effects of plan asymmetry on the earthquake response of one‐story systems are identified by comparing the dynamic response of an asymmetric‐plan system and the corresponding symmetric‐plan system for a wide range of ...

Abstract: Most seismic codes specify empirical formulas to estimate the fundamental vibration period of buildings. Evaluated first in this paper are the formulas specified in present U.S. codes using the available data on the ...

Abstract: Buildings should be designed to resist moderate ground motion without structural damage and resist intense ground motion with controlled damage. However, most codes do not consider both these requirements explicitly and ...

Abstract: Investigated in this paper is the approximation in the ATC-40 nonlinear static procedure (NSP) that the earthquake-induced deformation of an inelastic single-degree-of-freedom (SDF) system can be estimated by an iterative ...

Abstract: Static force procedures of most building codes require that the lateral earthquake force at each floor level of an asymmetric‐plan building be applied eccentrically from the centers of rigidity. To implement such procedures, ...