A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EARTHQUAKE STRENGTHENING DEVICE FOR BRIDGE
To provide an earthquake strengthening device for bridge having a horizontal force sharing function and a step prevention function that can be installed in a small space.SOLUTION: An earthquake strengthening device for bridge added between a lower structure and an upper structure of an existing bridge to reinforce earthquake performance, includes a first member 2 having a protrusion 22 and a second member 3 having a recess 31. A horizontal force sharing function is provided by loosely fitting the protrusion 22 and the recess 31 to form a shear key by connecting and supporting the first member 2 to one of the lower structure and the upper structure and connecting and supporting the second member 3 to the other of them. A step prevention function is provided by interposing a spacer 6 having a prescribed thickness between the first member 2 and the second member 3, or between the lower structure or the upper structure and the earthquake strengthening device to suppress the falling of the upper structure and reduce the step therebetween.SELECTED DRAWING: Figure 3
【課題】水平力分担機能及び段差防止機能を兼ね備えて省スペースで設置可能な橋梁の耐震補強装置を提供する。【解決手段】既設の橋梁の下部構造物と上部構造物との間に増設されて耐震性能を補強する橋梁の耐震補強装置において、凸部２２を有する第１部材２と、凹部３１を有する第２部材３と、を備え、第１部材２を下部構造物と上部構造物のいずれか一方に接続して支持し、第２部材３を両者の他方に接続して支持することにより、凸部２２と凹部３１が互いに遊嵌して嵌り合うことでせん断キーを構成して水平力に抵抗する水平力分担機能を設けるとともに、第１部材２と前記第２部材３との間、又は前記下部構造物若しくは前記上部構造物と本耐震補強装置との間に所定厚さのスペーサー６を介装して前記上部構造物の落下を抑制して前記両者の段差を低減する段差防止機能を設ける。【選択図】図３
EARTHQUAKE STRENGTHENING DEVICE FOR BRIDGE
To provide an earthquake strengthening device for bridge having a horizontal force sharing function and a step prevention function that can be installed in a small space.SOLUTION: An earthquake strengthening device for bridge added between a lower structure and an upper structure of an existing bridge to reinforce earthquake performance, includes a first member 2 having a protrusion 22 and a second member 3 having a recess 31. A horizontal force sharing function is provided by loosely fitting the protrusion 22 and the recess 31 to form a shear key by connecting and supporting the first member 2 to one of the lower structure and the upper structure and connecting and supporting the second member 3 to the other of them. A step prevention function is provided by interposing a spacer 6 having a prescribed thickness between the first member 2 and the second member 3, or between the lower structure or the upper structure and the earthquake strengthening device to suppress the falling of the upper structure and reduce the step therebetween.SELECTED DRAWING: Figure 3
【課題】水平力分担機能及び段差防止機能を兼ね備えて省スペースで設置可能な橋梁の耐震補強装置を提供する。【解決手段】既設の橋梁の下部構造物と上部構造物との間に増設されて耐震性能を補強する橋梁の耐震補強装置において、凸部２２を有する第１部材２と、凹部３１を有する第２部材３と、を備え、第１部材２を下部構造物と上部構造物のいずれか一方に接続して支持し、第２部材３を両者の他方に接続して支持することにより、凸部２２と凹部３１が互いに遊嵌して嵌り合うことでせん断キーを構成して水平力に抵抗する水平力分担機能を設けるとともに、第１部材２と前記第２部材３との間、又は前記下部構造物若しくは前記上部構造物と本耐震補強装置との間に所定厚さのスペーサー６を介装して前記上部構造物の落下を抑制して前記両者の段差を低減する段差防止機能を設ける。【選択図】図３
EARTHQUAKE STRENGTHENING DEVICE FOR BRIDGE
橋梁の耐震補強装置
TAKEMURA HIROSHI (author) / ANDO YUKI (author) / HIRATSUKA YOSHITATSU (author) / OGURA HIRONORI (author) / AIDA YUICHI (author)
2022-10-13
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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