STRUCTURE

To obtain a structure that can prevent weight increase due to the improvement of bending rigidity while further improving bending rigidity of respective portions.SOLUTION: A vehicle body 10 includes annular members 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, these annular members are formed extending in an annular shape and in a bent plate shape in cross-section as viewed in the extending direction. In addition, the adjacent annular members are connected together via peripheral rim portions thereof in the extending direction; therefore, a cylindrical portion having a cross-sectional closed surface as viewed in the extending direction and a connecting portion connecting the annular members are formed.SELECTED DRAWING: Figure 1 【課題】各箇所の曲げ剛性をより向上させつつ、曲げ剛性の向上に伴う質量の増加を抑制することができる構造物を得る。【解決手段】車体１０は、環状部材３４、３６、３８、４０、４２、４４、４６、４８、５０、５２、５４、５６、５８、６０、６２、６４、６６、６８を備えており、これらの環状部材は、環状となるように延在すると共に延在方向から見た断面形状が屈曲された板状とされている。そして、隣接する環状部材が、当該環状部材の延在方向に沿う周縁部同士において接合されることで、当該延在方向から見た断面形状が閉断面とされた筒状部と、これらを繋ぐ節部とが構成される。【選択図】図１