Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel strand prestress loss compensation mechanism used in box girder and using method
The invention provides a steel strand prestress loss compensation mechanism used in a box girder and a using method, and belongs to the technical field of bridge construction equipment. The mechanismcomprises an anchorage device, a clamping block, a steel stranded rope and a jack. The anchorage device sleeves the steel stranded rope and is fixed with the steel stranded rope through the clamping block, the jack is connected to an end part of the steel stranded rope and tensions the steel stranded rope, and a hydraulic clamping block jacking mechanism is arranged between the anchorage device and the jack. By means of the mechanism, a condition when the jack is removed, the clamping block connected between the steel stranded rope and the anchorage device is loosened, and a retraction space is not reserved for the steel stranded rope is avoided, and strength of the box girder is further improved.
本发明提出了一种用于箱梁中钢绞线预应力损失补偿机构及使用方法，属于桥梁施工设备技术领域，其具体包括锚具、夹块、钢绞绳和千斤顶，锚具套在钢绞绳上并通过夹块与钢绞绳固定，千斤顶连接在钢绞绳的端部并将钢绞绳拉紧，锚具和千斤顶之间设置有液压式夹块顶紧机构。通过本发明的机构避免了在去掉千斤顶时连接在钢绞绳与锚具之间的夹块产生松动，不给钢绞绳预留回缩的空间，进一步提升了箱梁的强度。
Steel strand prestress loss compensation mechanism used in box girder and using method
The invention provides a steel strand prestress loss compensation mechanism used in a box girder and a using method, and belongs to the technical field of bridge construction equipment. The mechanismcomprises an anchorage device, a clamping block, a steel stranded rope and a jack. The anchorage device sleeves the steel stranded rope and is fixed with the steel stranded rope through the clamping block, the jack is connected to an end part of the steel stranded rope and tensions the steel stranded rope, and a hydraulic clamping block jacking mechanism is arranged between the anchorage device and the jack. By means of the mechanism, a condition when the jack is removed, the clamping block connected between the steel stranded rope and the anchorage device is loosened, and a retraction space is not reserved for the steel stranded rope is avoided, and strength of the box girder is further improved.
本发明提出了一种用于箱梁中钢绞线预应力损失补偿机构及使用方法，属于桥梁施工设备技术领域，其具体包括锚具、夹块、钢绞绳和千斤顶，锚具套在钢绞绳上并通过夹块与钢绞绳固定，千斤顶连接在钢绞绳的端部并将钢绞绳拉紧，锚具和千斤顶之间设置有液压式夹块顶紧机构。通过本发明的机构避免了在去掉千斤顶时连接在钢绞绳与锚具之间的夹块产生松动，不给钢绞绳预留回缩的空间，进一步提升了箱梁的强度。
Steel strand prestress loss compensation mechanism used in box girder and using method
一种用于箱梁中钢绞线预应力损失补偿机构及使用方法
ZHANG CHUN'AN (Autor:in) / TIAN ZHIPENG (Autor:in) / HU MIN (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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