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Structural Engineering and Mechanics Volume 11, Number 6, June 2001 , pages 605-616 DOI: https://doi.org/10.12989/sem.2001.11.6.605 |
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Effect of shear wall location in rigid frame on earthquake response of roof structre |
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Koichiro Ishikawa, Yoshizo Kawasaki and Kengo Tagawa(Japan)
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| Abstract | ||
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The purpose of this study is to investigate the effect of the shear wall location in rigid frames on the dynamic behavior of a roof structure due to vertical and horizontal earthquake motions. The study deals with a gabled long span beam supported by two story rigid frames with shear walls. The earthquake response analysis is carried out to study the responses of the roof: vibration mode, natural period, bending moment and horizontal shear force of the bearings. The study results in the following conclusions: First, a large horizontal stiffness difference between the side frames is caused by the shear wall location, which results in a large vertical vibration of the roof and a large shear force at the side bearings. Second, in this case, the seismic design method for ordinary buildings is not useful in determining the distribution of the static equivalent loads for the seismic design of this kind of long span structures. | ||
| Key Words | ||
| long span structure; earthquake response; horizontal rigidity; interaction of long span beam and bearing structure. | ||
| Address | ||
| Koichiro Ishikawa, Yoshizo Kawasaki and Kengo Tagawa, Department of Architecture and Civil Engineering, Fukui University, Fukui-shi 910-8507, Japan | ||