Comparing the Seismic Behavior of Ribbed, Schwedler and Diamatic Single-Layer Lattice Domes by Using Time History Analyses
Publish place: Third National Conference on Earthquakes and Structures
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CESCM03_148
تاریخ نمایه سازی: 6 اسفند 1391
Abstract:
Titree single-layer common types of lattice steel domes were seismically studied to introduce the more appropriate type for seismic areas. The domes were of 40m span, with height-to-span ratios of 1/2, 112.5113, 114, 1/5, 1/6, 1/7 and 1/8. At first the domes were designed nnder gravity loads. Then, equivalent static, spectral, and Time History Analysis (THA) methods were used. THA by using both near- and far-source records show that the stress ratios in the considered domes subjected to near-field earthquakes are higher than far field earthquakes, and that Ribbed domes have better seismic behaviorthan Schwedler and Diamatic domes
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Authors
S Hajnasrollah
Structural Eng. Group, Civil Eng. Dept., Graduate School, Tehran South Branch
M Herischian
Structural Eng. Group, Civil Eng. Dept., Graduate School, Tehran South Branch
M Hosseini
Structural Eng. Group, Civil Eng. Dept., Graduate School, Tehran South Branch
A Akbarpour
Structural Eng. Group, Civil Eng. Dept., Graduate School, Tehran South Branch
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