Research Conducted at School of Civil Engineering Has Updated Our Knowledge about Construction Engineering (Seismic performance evaluation of single-layer reticulated dome and its fragility analysis)
By a News Reporter-Staff News Editor at Journal of Engineering -- Data detailed on Construction Engineering have been presented. According to news originating from Harbin, People's Republic of China, by VerticalNews correspondents, research stated, "In order to have a better understanding of the failure mechanism of a single-layer reticulated dome under seismic load, parametric analyses through increment dynamic analysis (IDA) are conducted on the dome. The results of the analyses indicate that the limit load of the structure significantly increases together with the plastic development with the decreasing rise span ratio, roof mass and initial defects prior to the failure to collapse."
Our news journalists obtained a quote from the research from the School of Civil Engineering, "The plastic development reduces and the structural ductility gets worse as the cross-section area of a structural member decreases. The failure of a single-layer reticulated dome under a strong seismic load is due to the failure in dynamic strength resulting from the excessive damage of material. A structural damage model which can estimate different degrees of damage of the dome is defined. Then, the fragility curves of the different values of the structural damage model with the corresponding different degrees of damage under seismic records are obtained through IDA analysis which can be used for seismic performance evaluation and risk assessment for its loss or fatality acceptability."
According to the news editors, the research concluded: "A theoretical guidance is thus provided for the engineering application of this kind of structure."
For more information on this research see: Seismic performance evaluation of single-layer reticulated dome and its fragility analysis. Journal of Constructional Steel Research, 2014;100():176-182. Journal of Constructional Steel Research can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Journal of Constructional Steel Research - www.elsevier.com/wps/product/cws_home/405901)
The news correspondents report that additional information may be obtained from G.B. Nie, Harbin Inst Technol, Sch Civil Engn, Harbin 150090, People's Republic of China. Additional authors for this research include X.D. Zhi, F. Fan and J.W. Dai.
Keywords for this news article include: Asia, Harbin, Construction Engineering, People's Republic of China
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