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A platform for research: civil engineering, architecture and urbanism
To provide a space truss structure capable of reducing load applied to a truss member positioned at a support portion side in a truss structure including a cantilever truss.SOLUTION: A space truss structure 10 comprises a cantilever truss including a lower chord 11, an upper chord 12, and a diagonal member structure 13 connecting the lower chord 11 and the upper chord 12. The space truss structure comprises a cross section shape change portion comprising: a lower chord cross section area change portion in which a cross section area viewed along an axial direction is smaller at a front side F than at a rear side R in the lower chord 11; an upper chord cross section area change portion in which a cross section area of the upper chord 12 viewed along an axial direction is smaller at the front side F than at the rear side R in the upper chord 12; and a diagonal member cross section area change portion in which a cross section area of the diagonal member 130 viewed along an axial direction is smaller at the front side F than at the rear side R in the diagonal member structure 13.SELECTED DRAWING: Figure 5
【課題】片持ちトラスを有するトラス構造において、支持部側に位置されるトラス部材に付加される荷重を低減することが可能な立体トラス構造を提供すること。【解決手段】下弦１１と、上弦１２と、前記下弦１１と前記上弦１２とを接合する斜材構造１３と、を有する片持ちトラスを備えた立体トラス構造１０であって、前記下弦１１において軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい下弦断面積変化部と、前記上弦１２において前記上弦１２を軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい上弦断面積変化部と、前記斜材構造１３において前記斜材部材１３０を軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい斜材断面積変化部とを有する断面形状変化部を備えていることを特徴とする。【選択図】図５
To provide a space truss structure capable of reducing load applied to a truss member positioned at a support portion side in a truss structure including a cantilever truss.SOLUTION: A space truss structure 10 comprises a cantilever truss including a lower chord 11, an upper chord 12, and a diagonal member structure 13 connecting the lower chord 11 and the upper chord 12. The space truss structure comprises a cross section shape change portion comprising: a lower chord cross section area change portion in which a cross section area viewed along an axial direction is smaller at a front side F than at a rear side R in the lower chord 11; an upper chord cross section area change portion in which a cross section area of the upper chord 12 viewed along an axial direction is smaller at the front side F than at the rear side R in the upper chord 12; and a diagonal member cross section area change portion in which a cross section area of the diagonal member 130 viewed along an axial direction is smaller at the front side F than at the rear side R in the diagonal member structure 13.SELECTED DRAWING: Figure 5
【課題】片持ちトラスを有するトラス構造において、支持部側に位置されるトラス部材に付加される荷重を低減することが可能な立体トラス構造を提供すること。【解決手段】下弦１１と、上弦１２と、前記下弦１１と前記上弦１２とを接合する斜材構造１３と、を有する片持ちトラスを備えた立体トラス構造１０であって、前記下弦１１において軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい下弦断面積変化部と、前記上弦１２において前記上弦１２を軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい上弦断面積変化部と、前記斜材構造１３において前記斜材部材１３０を軸方向に沿って見たときの断面積が前記後方側Ｒよりも前記前方側Ｆが小さい斜材断面積変化部とを有する断面形状変化部を備えていることを特徴とする。【選択図】図５
SPACE TRUSS STRUCTURE
立体トラス構造
MIYAZAKI TAKASHI (author)
2020-09-10
Patent
Electronic Resource
Japanese
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