NEHRP Clearinghouse

Title
Equivalent Seismic Design of Curved Box Girder Bridges.
File
PB84112697.pdf
Author(s)
Heins, C. P.; Lin, I. C.
Source
National Science Foundation, Washington, DC., February 1982, 179 p.
Abstract
The seismic response of steel composite curved box girder bridges has been predicted by computing the natural frequency of the bridge and using a response spectrum curve for both translation and rotational accelerations. The natural frequencies have been predicted by simulation of the continuous curved bridge, restrained by equivalent springs. These natural frequencies are then utilized in conjunction with the response spectrum curves to evaluate the equivalent seismic force to be applied to the structure.
Keywords
Dynamic response; Earthquake resistant structures; Earthquake engineering; Seismic design; Computer applications; Design criteria; Resonant frequency; Mathematical models; Girder bridges