Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-line active anchoring equal-force tensioning hydraulic jack for prestressed concrete construction
The invention discloses a multi-line active anchoring equal-force tensioning hydraulic jack for prestressed concrete construction, which belongs to the technical field of prestressed concrete construction and comprises a connected tensioning oil cylinder, a tool anchor, an anchor opening jacking pipe, a connecting seat, an anchor locking oil cylinder, a wire guider and the like. A plurality of sub oil cylinders are arranged in the connected tensioning oil cylinder and are distributed in parallel; the tool anchor is a clamping piece type single anchor and is assembled at the front end of a piston rod of the sub oil cylinder; the anchor opening jacking pipes are assembled on the connecting base, each tool anchor corresponds to one anchor opening jacking pipe, one side of the connecting base is connected with the anchor locking oil cylinder through the wire guider, and the other side of the connecting base is connected with the connected tensioning oil cylinder through the supporting rod. After the steel strand is tensioned in place, a piston of the anchor locking oil cylinder pushes a working anchor clamping piece to enable the working anchor clamping piece to actively clamp the steel strand, after tensioning force is released, the steel strand is anchored instantly, synchronous clamping of the prestress steel strand is achieved, slipping of the steel strand in the working anchor can be avoided, prestress loss caused by clamping of the working anchor is eliminated to the maximum extent, and the service life of the prestress steel strand is prolonged. Construction quality is guaranteed, and potential safety hazards are eliminated.
本发明公开一种预应力混凝土施工用多线主动锚固等力张拉液压千斤顶，属于预应力混凝土施工技术领域，包括连体张拉油缸、工具锚、开锚顶管、连接座、锁锚油缸和导线器等结构。连体张拉油缸内设有多个子油缸且并联分布；工具锚为夹片式单锚，装配在子油缸活塞杆前端；开锚顶管装配在连接座上，每个工具锚对应一个开锚顶管，连接座一侧通过导线器连接锁锚油缸、另一侧通过支撑杆与连体张拉油缸连接。钢绞线张拉到位后，锁锚油缸的活塞顶推工作锚夹片使其主动夹紧钢绞线，张拉力释放后，钢绞线瞬间被锚固，实现预应力钢绞线的同步夹紧，可避免钢绞线在工作锚内打滑，最大程度消除了工作锚夹紧原因造成的预应力损失，进而保证施工质量，消除安全隐患。
Multi-line active anchoring equal-force tensioning hydraulic jack for prestressed concrete construction
The invention discloses a multi-line active anchoring equal-force tensioning hydraulic jack for prestressed concrete construction, which belongs to the technical field of prestressed concrete construction and comprises a connected tensioning oil cylinder, a tool anchor, an anchor opening jacking pipe, a connecting seat, an anchor locking oil cylinder, a wire guider and the like. A plurality of sub oil cylinders are arranged in the connected tensioning oil cylinder and are distributed in parallel; the tool anchor is a clamping piece type single anchor and is assembled at the front end of a piston rod of the sub oil cylinder; the anchor opening jacking pipes are assembled on the connecting base, each tool anchor corresponds to one anchor opening jacking pipe, one side of the connecting base is connected with the anchor locking oil cylinder through the wire guider, and the other side of the connecting base is connected with the connected tensioning oil cylinder through the supporting rod. After the steel strand is tensioned in place, a piston of the anchor locking oil cylinder pushes a working anchor clamping piece to enable the working anchor clamping piece to actively clamp the steel strand, after tensioning force is released, the steel strand is anchored instantly, synchronous clamping of the prestress steel strand is achieved, slipping of the steel strand in the working anchor can be avoided, prestress loss caused by clamping of the working anchor is eliminated to the maximum extent, and the service life of the prestress steel strand is prolonged. Construction quality is guaranteed, and potential safety hazards are eliminated.
本发明公开一种预应力混凝土施工用多线主动锚固等力张拉液压千斤顶，属于预应力混凝土施工技术领域，包括连体张拉油缸、工具锚、开锚顶管、连接座、锁锚油缸和导线器等结构。连体张拉油缸内设有多个子油缸且并联分布；工具锚为夹片式单锚，装配在子油缸活塞杆前端；开锚顶管装配在连接座上，每个工具锚对应一个开锚顶管，连接座一侧通过导线器连接锁锚油缸、另一侧通过支撑杆与连体张拉油缸连接。钢绞线张拉到位后，锁锚油缸的活塞顶推工作锚夹片使其主动夹紧钢绞线，张拉力释放后，钢绞线瞬间被锚固，实现预应力钢绞线的同步夹紧，可避免钢绞线在工作锚内打滑，最大程度消除了工作锚夹紧原因造成的预应力损失，进而保证施工质量，消除安全隐患。
Multi-line active anchoring equal-force tensioning hydraulic jack for prestressed concrete construction
预应力混凝土施工用多线主动锚固等力张拉液压千斤顶
LI ZHIRONG (Autor:in)
09.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste
/
B66F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
,
Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
/
F15B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
,
Druckmittelbetriebene Systeme allgemein
Hydraulic jack for prestressed concrete
Engineering Index Backfile | 1953
Hydraulic jack for prestressed concrete
Engineering Index Backfile | 1953
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