A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ASEISMIC BASE ISOLATION WORK METHOD
PROBLEM TO BE SOLVED: To provide a work method using a temporary receiving structure for axial force of a column, the temporary receiving structure reducing a size and weight compared to when having been manufactured using a section steel, and being capable of supporting large axial force exerted on an existing column.SOLUTION: An aseismic base isolation work method is for replacing an aseismic base isolation device 20 installed between an upper foundation 12 and a foundation 14, and includes a step of connecting a pair of PC brackets 41 while having tensile force applied by a PC steel bar 42, the PC brackets sandwiching an existing column 11 from both sides and having the PC steel bar 42 inserted through a protrusion 41c such that the PC steel bar passes an outside of the existing column 11 in a direction orthogonal to the sandwiching direction, and the protrusion being positioned on both outside parts in the direction orthogonal to the sandwiching direction. Each PC bracket 41 has a cutout part 41e recessed toward the existing column 41, between the sandwiching direction of the protrusion 41c and the direction orthogonal thereto.SELECTED DRAWING: Figure 2
【課題】形鋼で作製した場合と比較して、大きさ及び重量の低減を図ることが可能であり、既存柱にかかる大きな軸力を支持することが可能な柱軸力受仮受け構造を使用した工事方法を提供する。【解決手段】上部基礎１２と基礎１４との間に設置されている免震装置２０を交換する免震工事方法であって、既存柱１１を両側方から挟み込む一対のＰＣブラケット４１を、前記挟み込む方向と直交する方向の両外側部に位置する突出部４１ｃに既存柱１１の前記挟み込む方向と直交する方向における外側を通るようにＰＣ鋼棒４２をそれぞれ挿通して、ＰＣ鋼棒４２により緊張力をかけた状態で連結する工程を含む。各ＰＣブラケット４１は、突出部４１ｃの前記挟み込む方向と直交する方向の間に既存柱４１に向って凹んだ切欠部４１ｅを有する。【選択図】図２
ASEISMIC BASE ISOLATION WORK METHOD
PROBLEM TO BE SOLVED: To provide a work method using a temporary receiving structure for axial force of a column, the temporary receiving structure reducing a size and weight compared to when having been manufactured using a section steel, and being capable of supporting large axial force exerted on an existing column.SOLUTION: An aseismic base isolation work method is for replacing an aseismic base isolation device 20 installed between an upper foundation 12 and a foundation 14, and includes a step of connecting a pair of PC brackets 41 while having tensile force applied by a PC steel bar 42, the PC brackets sandwiching an existing column 11 from both sides and having the PC steel bar 42 inserted through a protrusion 41c such that the PC steel bar passes an outside of the existing column 11 in a direction orthogonal to the sandwiching direction, and the protrusion being positioned on both outside parts in the direction orthogonal to the sandwiching direction. Each PC bracket 41 has a cutout part 41e recessed toward the existing column 41, between the sandwiching direction of the protrusion 41c and the direction orthogonal thereto.SELECTED DRAWING: Figure 2
【課題】形鋼で作製した場合と比較して、大きさ及び重量の低減を図ることが可能であり、既存柱にかかる大きな軸力を支持することが可能な柱軸力受仮受け構造を使用した工事方法を提供する。【解決手段】上部基礎１２と基礎１４との間に設置されている免震装置２０を交換する免震工事方法であって、既存柱１１を両側方から挟み込む一対のＰＣブラケット４１を、前記挟み込む方向と直交する方向の両外側部に位置する突出部４１ｃに既存柱１１の前記挟み込む方向と直交する方向における外側を通るようにＰＣ鋼棒４２をそれぞれ挿通して、ＰＣ鋼棒４２により緊張力をかけた状態で連結する工程を含む。各ＰＣブラケット４１は、突出部４１ｃの前記挟み込む方向と直交する方向の間に既存柱４１に向って凹んだ切欠部４１ｅを有する。【選択図】図２
ASEISMIC BASE ISOLATION WORK METHOD
免震工事方法
KISHIMOTO TAKESHI (author) / TOKO KEIJI (author) / OKA YASUHIRO (author) / NAKAMURA YUSUKE (author) / KOYAMA YOSHIKI (author) / YAMAGAMI SATOSHI (author)
2017-10-05
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste