한국구조물진단유지관리공학회 논문집 (Journal of the Korea institute for structural maintenance and inspection)
- 제4권4호
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- Pages.171-180
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- 2000
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- 2234-6937(pISSN)
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- 2287-6979(eISSN)
국내 적용되고 있는 흙막이구조물의 축력에 대한 관리기준치 분석
A Control Value Analysis on the Axial Force of Braced Excavation Walls Used In Korea
- 투고 : 2000.07.11
- 발행 : 2000.10.31
초록
This study aims to present a more reasonable control value than the exiting one by comparing and analyzing control values and field instrumentation values of the whole excavation depth of the four case sites using geometric averaging as a statistical method. The range of the study is confined to three things: (1) the axial force of the braced excavation walls among a variety of items prescribed in the control values by stress deformation of walls and adjacent structures; (2) by approximation of the allowable and design value; (3) and by safety factor. As a res it is desirable to revise "(Long term allowable stress + Short term allowable stress)/2 ~ Short term allowable stress," presented in the present control values by stress deformation of walls and adjacent structures, to "(Long term allowable stress + Short term allowable stress)/5 ~ (Short term allowable stress)/3." The result also shows that since there is a difference of about 3.5%, it is not necessary to revise 70, 90, and 100 percent of LEVEL I, II, and III, prescribed in the control values by the allowable and design value approximation. In addition, modifying the control value by the safety factor, now 1.07, is unnecessary, although it varies little difference from the present value.
키워드