A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FOUNDATION REPLACEMENT METHOD
PROBLEM TO BE SOLVED: To restrain a settlement phenomenon and an inclination and overturn phenomenon of a small structure, by surely dispersing a cargo loading load to the small structure.SOLUTION: Ground reaction σ=P/Bis determined from a design load P and a width Bof a small structure W, and when the relationship between allowable bearing power Qand ground reaction σis Q<σ, replacement ground reaction σbeing a relationship of Q≥σis determined, and a replacement width Bis determined from replacement ground reaction σ=P/B, and a lateral overhang width L from respective side surfaces of the small structure is determined from a replacement width B=B+2L, and a maximum flexural moment M=(P/B)×L×L/2 of an overhang part F of a laminate structure K is determined from the overhang width L, and a replacement thickness H such that the relationship between an allowable flexural moment Mof a laminate structure and a maximum flexural moment M of the laminate structure becomes M≥M is determined, and a size of the laminate structure is designed based on the replacement thickness H and the replacement width B, and the laminate structure is used as a replacement material T.SELECTED DRAWING: Figure 4
【課題】小構造物に対する載荷荷重を確実に分散することができ、小構造物の沈下現象や傾斜、転倒現象を抑制することができる。【解決手段】設計荷重Ｐ及び小構造物Ｗの幅Ｂ１から地盤反力σ１＝Ｐ／Ｂ１を求め、許容支持力Ｑａと地盤反力σ１との関係がＱａ＜σ１の場合においてはＱａ≧σ２の関係となる置換地盤反力σ２を求め、置換地盤反力σ２＝Ｐ／Ｂ２から置換幅Ｂ２を決定し、置換幅Ｂ２＝Ｂ１＋２Ｌから小構造物の各側面からの左右の張出幅Ｌを求め、張出幅Ｌから積層構造体Ｋの張出部Ｆの最大曲げモーメントＭ＝（Ｐ／Ｂ２）×Ｌ×Ｌ／２を求め、積層構造体の許容曲げモーメントＭａと積層構造体の最大曲げモーメントＭとの関係がＭａ≧Ｍとなるような置換厚Ｈを決定し、置換厚Ｈ及び置換幅Ｂ２に基づいて積層構造体の大きさを設計し、積層構造体を置換材Ｔとして用いる。【選択図】図４
FOUNDATION REPLACEMENT METHOD
PROBLEM TO BE SOLVED: To restrain a settlement phenomenon and an inclination and overturn phenomenon of a small structure, by surely dispersing a cargo loading load to the small structure.SOLUTION: Ground reaction σ=P/Bis determined from a design load P and a width Bof a small structure W, and when the relationship between allowable bearing power Qand ground reaction σis Q<σ, replacement ground reaction σbeing a relationship of Q≥σis determined, and a replacement width Bis determined from replacement ground reaction σ=P/B, and a lateral overhang width L from respective side surfaces of the small structure is determined from a replacement width B=B+2L, and a maximum flexural moment M=(P/B)×L×L/2 of an overhang part F of a laminate structure K is determined from the overhang width L, and a replacement thickness H such that the relationship between an allowable flexural moment Mof a laminate structure and a maximum flexural moment M of the laminate structure becomes M≥M is determined, and a size of the laminate structure is designed based on the replacement thickness H and the replacement width B, and the laminate structure is used as a replacement material T.SELECTED DRAWING: Figure 4
【課題】小構造物に対する載荷荷重を確実に分散することができ、小構造物の沈下現象や傾斜、転倒現象を抑制することができる。【解決手段】設計荷重Ｐ及び小構造物Ｗの幅Ｂ１から地盤反力σ１＝Ｐ／Ｂ１を求め、許容支持力Ｑａと地盤反力σ１との関係がＱａ＜σ１の場合においてはＱａ≧σ２の関係となる置換地盤反力σ２を求め、置換地盤反力σ２＝Ｐ／Ｂ２から置換幅Ｂ２を決定し、置換幅Ｂ２＝Ｂ１＋２Ｌから小構造物の各側面からの左右の張出幅Ｌを求め、張出幅Ｌから積層構造体Ｋの張出部Ｆの最大曲げモーメントＭ＝（Ｐ／Ｂ２）×Ｌ×Ｌ／２を求め、積層構造体の許容曲げモーメントＭａと積層構造体の最大曲げモーメントＭとの関係がＭａ≧Ｍとなるような置換厚Ｈを決定し、置換厚Ｈ及び置換幅Ｂ２に基づいて積層構造体の大きさを設計し、積層構造体を置換材Ｔとして用いる。【選択図】図４
FOUNDATION REPLACEMENT METHOD
基礎置換工法
MORI TAKAO (author) / HARA KATSUYA (author)
2017-10-12
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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