Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-retraction secondary tensioning anchorage device capable of reducing prestress loss and tensioning method
The invention relates to a low-retraction secondary tensioning anchorage device capable of reducing prestress loss and a tensioning method. The device comprises a main working anchor plate, a workingclamping piece, an anti-loosening part and an anchoring part, wherein the main working anchor plate is sleeved outside a steel strand and is propped against an anchor backing plate, the working clamping piece is sleeved outside a steel strand and is inserted into the top of the main working anchor plate, the anchoring part is connected outside the steel strand in a sleeving mode and abuts againstthe top of the working clamping piece, the anti-loosening part is erected on the main working anchor plate, the anti-loosening part comprises a main frame, a pressing plate and a bolt, the main frameis in threaded connection with an outer wall of the main working anchor plate, the pressing plate is connected into the main frame at the top of the anchoring part in a sliding mode, the pressing plate abuts against the top of the anchoring part, multiple bolts are connected with the main frame in an annular threaded mode at intervals, t bolts abut against a top end surface of the pressing plate,and the bolts move downwards to enable the pressing plate to be in close fit with the anchoring part.
本发明涉及一种减小预应力损失的低回缩二次张拉锚具及张拉方法，包括主工作锚板、工作夹片、防松部件和锚固件，主工作锚板套在钢绞线外并与锚垫板抵接，工作夹片套接在钢绞线外并插接在主工作锚板顶部，锚固件套接在钢绞线外并抵接在工作夹片顶部，防松部件架设在主工作锚板上，其中，防松部件包括主架、压板和螺栓，主架螺纹连接在主工作锚板外壁上，压板滑动连接在锚固件顶部的主架内，压板抵接在锚固件顶部，若干个螺栓成环状间隔螺纹连接在主架上，螺栓与压板顶端面抵接，螺栓下移以使压板与锚固件紧密配合，本发明具有消除第二次张拉时钢绞线的预应力损失的优点。
Low-retraction secondary tensioning anchorage device capable of reducing prestress loss and tensioning method
The invention relates to a low-retraction secondary tensioning anchorage device capable of reducing prestress loss and a tensioning method. The device comprises a main working anchor plate, a workingclamping piece, an anti-loosening part and an anchoring part, wherein the main working anchor plate is sleeved outside a steel strand and is propped against an anchor backing plate, the working clamping piece is sleeved outside a steel strand and is inserted into the top of the main working anchor plate, the anchoring part is connected outside the steel strand in a sleeving mode and abuts againstthe top of the working clamping piece, the anti-loosening part is erected on the main working anchor plate, the anti-loosening part comprises a main frame, a pressing plate and a bolt, the main frameis in threaded connection with an outer wall of the main working anchor plate, the pressing plate is connected into the main frame at the top of the anchoring part in a sliding mode, the pressing plate abuts against the top of the anchoring part, multiple bolts are connected with the main frame in an annular threaded mode at intervals, t bolts abut against a top end surface of the pressing plate,and the bolts move downwards to enable the pressing plate to be in close fit with the anchoring part.
本发明涉及一种减小预应力损失的低回缩二次张拉锚具及张拉方法，包括主工作锚板、工作夹片、防松部件和锚固件，主工作锚板套在钢绞线外并与锚垫板抵接，工作夹片套接在钢绞线外并插接在主工作锚板顶部，锚固件套接在钢绞线外并抵接在工作夹片顶部，防松部件架设在主工作锚板上，其中，防松部件包括主架、压板和螺栓，主架螺纹连接在主工作锚板外壁上，压板滑动连接在锚固件顶部的主架内，压板抵接在锚固件顶部，若干个螺栓成环状间隔螺纹连接在主架上，螺栓与压板顶端面抵接，螺栓下移以使压板与锚固件紧密配合，本发明具有消除第二次张拉时钢绞线的预应力损失的优点。
Low-retraction secondary tensioning anchorage device capable of reducing prestress loss and tensioning method
一种减小预应力损失的低回缩二次张拉锚具及张拉方法
CHEN NA (Autor:in) / LI YONGQUAN (Autor:in) / ZHANG HONGXIN (Autor:in) / YAN YU (Autor:in) / LI XIN (Autor:in) / LIU KE (Autor:in) / XIAO SHIBO (Autor:in) / QIAN YUSHAN (Autor:in) / GONG JINCAI (Autor:in) / LIAO YUAN (Autor:in)
08.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
| Europäisches Patentamt | 2023
Anchorage device structure capable of reducing prestress loss caused by anchorage device retraction
| Europäisches Patentamt | 2024
Low-retraction prestressed anchorage device and tensioning method
| Europäisches Patentamt | 2020