A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PCA CENTER PILLAR
PROBLEM TO BE SOLVED: To provide a structure of Pca floor slab and center pillar that rigidly connects the floor slab and the center pillar using cast-in-place reinforced concrete, thereby enhancing rigidity and making the structure slimmer while enhancing aseismatic performance, and thus enabling a large opening exceeding a width of the Pca floor slab to be formed freely.SOLUTION: An erection structure integrates: one or more rows of center pillars that are adjacent in a transverse direction of a tunnel; two sets of Pca floor slabs spanned between the center pillars and a side wall respectively on both sides of the tunnel, with the row of the center pillars in between; and a junction part formed by arranging a plurality of axial-direction reinforcing bars relative to a reinforcing bar protruding respectively from the central pillar and the two sets of Pca floor slabs and then casting concrete, the axial-direction reinforcing bars being arranged at least in an axial direction of the tunnel for a distance exceeding a width of the Pca floor slab.SELECTED DRAWING: Figure 5
【課題】Ｐｃａ床版と中柱を現場打の鉄筋コンクリートで剛結し、剛性を上げつつスリム化することで高耐久化を図りつつ耐震性能を向上させ、Ｐｃａ床版の幅を超える大きな開口を自在に設置可能とする床版及び中柱の構造を提供する。【解決手段】トンネルの横断方向に隣接する１列以上の中柱と、中柱を挟んで当該中柱とトンネルの両側それぞれの側壁とを渡して設置される２組のＰｃａ床版と、中柱及び２組のＰｃａ床版それぞれから突出する鉄筋に対して、少なくともトンネルの軸方向にＰｃａ床版の幅を超える複数の軸方向鉄筋が配筋されコンクリート打設により構成される接合部とを一体化した架設構造とする。【選択図】図５
PCA CENTER PILLAR
PROBLEM TO BE SOLVED: To provide a structure of Pca floor slab and center pillar that rigidly connects the floor slab and the center pillar using cast-in-place reinforced concrete, thereby enhancing rigidity and making the structure slimmer while enhancing aseismatic performance, and thus enabling a large opening exceeding a width of the Pca floor slab to be formed freely.SOLUTION: An erection structure integrates: one or more rows of center pillars that are adjacent in a transverse direction of a tunnel; two sets of Pca floor slabs spanned between the center pillars and a side wall respectively on both sides of the tunnel, with the row of the center pillars in between; and a junction part formed by arranging a plurality of axial-direction reinforcing bars relative to a reinforcing bar protruding respectively from the central pillar and the two sets of Pca floor slabs and then casting concrete, the axial-direction reinforcing bars being arranged at least in an axial direction of the tunnel for a distance exceeding a width of the Pca floor slab.SELECTED DRAWING: Figure 5
【課題】Ｐｃａ床版と中柱を現場打の鉄筋コンクリートで剛結し、剛性を上げつつスリム化することで高耐久化を図りつつ耐震性能を向上させ、Ｐｃａ床版の幅を超える大きな開口を自在に設置可能とする床版及び中柱の構造を提供する。【解決手段】トンネルの横断方向に隣接する１列以上の中柱と、中柱を挟んで当該中柱とトンネルの両側それぞれの側壁とを渡して設置される２組のＰｃａ床版と、中柱及び２組のＰｃａ床版それぞれから突出する鉄筋に対して、少なくともトンネルの軸方向にＰｃａ床版の幅を超える複数の軸方向鉄筋が配筋されコンクリート打設により構成される接合部とを一体化した架設構造とする。【選択図】図５
PCA CENTER PILLAR
Ｐｃａ中柱
HOSHINO AKIO (author) / TANAHASHI HAJIME (author)
2018-08-09
Patent
Electronic Resource
Japanese
PAN FOR CENTER PILLAR, AND INSTALLATION METHOD OF PAN FOR CENTER PILLAR
| European Patent Office | 2016