Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestress jacking and pulling anchor system and construction method
The invention discloses a prestress jacking anchor pulling system and a construction method, the prestress jacking anchor pulling system comprises an anchoring part, a tensioning part and a jacking mechanism, a pressing rod is arranged between the anchoring part and the tensioning part, the lower end of the pressing rod is connected with the anchoring part, a plurality of prestressed tendons are connected between the anchoring part and the tensioning part, the upper surface of the tensioning part is connected with the jacking part, and the lower end of the jacking mechanism is connected with the prestressed tendons. The top pressing mechanism comprises an abutting end and a buckling and grabbing end, the abutting end penetrates through the top pressing part and the tensioning part and then abuts against the upper end of the pressing rod, the buckling and grabbing end is buckled at the lower end of the tensioning part, and the buckling and grabbing end drives the tensioning part to move upwards to be tightly attached to the top pressing part after the top pressing mechanism applies pressure, so that prestress is applied to the prestressed tendons. Reliable pre-stress can be applied to the concrete structure, hole channel reserving and grouting are not needed in the tensioning process, the possibility of prestress failure is fundamentally eradicated, the reliability and durability of the concrete structure are greatly improved, and the device is simple in structure, clear in stress, flexible in construction and easy and convenient to install.
本发明公开了一种预应力顶压拉锚体系及施工方法，包括锚固部、张拉部及顶压机构，所述锚固部与张拉部之间设有压杆，所述压杆下端与所述锚固部连接，所述锚固部与张拉部之间连接有多个预应力筋，所述张拉部的上面连接有顶压部，所述顶压机构包括抵压端和扣抓端，所述抵压端穿过所述顶压部及张拉部后抵在压杆的上端，所述扣抓端扣在所述张拉部的下端，所述扣抓端在顶压机构施压后，带动所述张拉部向上移动与顶压部贴紧，给多个所述预应力筋施加预应力。本发明可为混凝土结构施加可靠的预加应力，张拉时不须预留孔道、不须灌浆，从根本上杜绝预应力失效的可能性，大幅提高了混凝土结构的可靠性和耐久性，其构造简单、受力明确、施工灵活、安装简便。
Prestress jacking and pulling anchor system and construction method
The invention discloses a prestress jacking anchor pulling system and a construction method, the prestress jacking anchor pulling system comprises an anchoring part, a tensioning part and a jacking mechanism, a pressing rod is arranged between the anchoring part and the tensioning part, the lower end of the pressing rod is connected with the anchoring part, a plurality of prestressed tendons are connected between the anchoring part and the tensioning part, the upper surface of the tensioning part is connected with the jacking part, and the lower end of the jacking mechanism is connected with the prestressed tendons. The top pressing mechanism comprises an abutting end and a buckling and grabbing end, the abutting end penetrates through the top pressing part and the tensioning part and then abuts against the upper end of the pressing rod, the buckling and grabbing end is buckled at the lower end of the tensioning part, and the buckling and grabbing end drives the tensioning part to move upwards to be tightly attached to the top pressing part after the top pressing mechanism applies pressure, so that prestress is applied to the prestressed tendons. Reliable pre-stress can be applied to the concrete structure, hole channel reserving and grouting are not needed in the tensioning process, the possibility of prestress failure is fundamentally eradicated, the reliability and durability of the concrete structure are greatly improved, and the device is simple in structure, clear in stress, flexible in construction and easy and convenient to install.
本发明公开了一种预应力顶压拉锚体系及施工方法，包括锚固部、张拉部及顶压机构，所述锚固部与张拉部之间设有压杆，所述压杆下端与所述锚固部连接，所述锚固部与张拉部之间连接有多个预应力筋，所述张拉部的上面连接有顶压部，所述顶压机构包括抵压端和扣抓端，所述抵压端穿过所述顶压部及张拉部后抵在压杆的上端，所述扣抓端扣在所述张拉部的下端，所述扣抓端在顶压机构施压后，带动所述张拉部向上移动与顶压部贴紧，给多个所述预应力筋施加预应力。本发明可为混凝土结构施加可靠的预加应力，张拉时不须预留孔道、不须灌浆，从根本上杜绝预应力失效的可能性，大幅提高了混凝土结构的可靠性和耐久性，其构造简单、受力明确、施工灵活、安装简便。
Prestress jacking and pulling anchor system and construction method
预应力顶压拉锚体系及施工方法
LEE SEUNG-GEUN (Autor:in) / GAO RI (Autor:in) / CHEN ZIHENG (Autor:in) / ZHAO QIGUANG (Autor:in) / LI QI (Autor:in) / GAO SIYANG (Autor:in)
22.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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