|Table of Contents|

Research on Generalized Reliability Index of Underground Cave Dwellings Based on Strength Reduction Method(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2012年04期
Page:
59-66
Research Field:
Publishing date:

Info

Title:
Research on Generalized Reliability Index of Underground Cave Dwellings Based on Strength Reduction Method
Author(s):
GUO Ping-gong1; 2;  TONG Li-ping1
1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China; 2. Department of Civil Engineering, Henan University of Urban Construction, Pingdingshan 467036, Henan, China
Keywords:
strength reduction method;  generalized reliability index;  random variable;  cave leg width;  cave span
PACS:
TU761.2
DOI:
-
Abstract:
In order to uncover the reason that underground cave dwellings could survive hundreds of years, the generalized reliability index of underground cave dwellings was researched. Based on definitive finite element analysis and strength reduction method, relations between cave leg width, cave span and excess safety factor were established, which were expressed by quadratic polynomial response surface function without cross terms. The generalized reliability index and checking point could be solved. The generalized reliability index research of underground cave dwellings in Shan County, Henan Province was done. The results show that the reliability of underground cave dwellings in this village is high, and higher if the correlation between cave leg width and cave span is considered. The influence of cave leg width on generalized reliability index is in major position contrasting to cave span. The researching method of generalized reliability index of underground cave dwelling, can be used to evaluate reliability of underground cave dwellings in every district, even in the situation of more random variables, and can guide the construction and renovation of underground cave dwellings.

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Last Update: 2012-12-20