A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a prestressed unbonded anchor rod steel bar. The prestressed unbonded anchor rod steel bar comprises a main steel bar body serving as a basic force bearing structure, the main steel bar body is a finish rolling steel bar or a common steel bar, an anti-corrosion grease layer is arranged on the surface of the main steel bar body, and a plastic film sleeve is arranged outside the anti-corrosion grease layer. The number of the main steel bar bodies is one or one to five, and the main steel bar body is of a main steel bar structure formed by connecting segmented reinforcing steel bars through connecting nuts. According to the prestressed anchor rod prepared from the unbonded anchor rod steel bars, the unbonded main steel bars are directly cast into the prestressed anchorrod through concrete, or the lower end of the prestressed anchor rod is connected with grouting bodies or concrete of expanded heads; the grouting body or concrete of the expanded head is internally wrapped with a steel reinforcement framework or a bag, wherein the steel reinforcement framework comprises one or more steel reinforcements, a steel reinforcement cage with a common structure and a variable-diameter steel reinforcement cage; an anti-floating tensile anchor rod of a concrete prefabricated pipe column is prepared when a steel reinforcement cage and a variable-diameter steel reinforcement cage of a common structure are adopted; one or more reinforcing steel bars are connected by using one or more reinforcing steel bar anchor rod reinforcing steel bars; and one or more reinforcingsteel bars or reinforcement cages are still arranged in the center of the bag.
一种预应力无粘结锚杆钢筋，包括主筋钢筋作为基本承力的结构，主筋钢筋为精轧钢筋或普通钢筋，主筋钢筋表面设有防腐油脂层，防腐油脂层外设有塑料薄膜套；主筋钢筋的数量是一根或一根至五根；主筋钢筋是将分段的钢筋通过连接螺母连接的主筋钢筋结构。无粘结锚杆钢筋制备的预应力锚杆，无粘结主筋钢筋直接混凝土浇铸成预应力锚杆或锚杆下端再连接扩大头的注浆体或混凝土；扩大头的注浆体或混凝土内裹钢筋骨架或囊袋，钢筋骨架包括单根或若干钢筋、普通结构的钢筋笼、变直径钢筋笼；普通结构的钢筋笼、变直径钢筋笼时混凝土预制的管柱的抗浮抗拉锚杆；使用单根或若干钢筋锚杆钢筋连接单根或若干钢筋；囊袋中央仍设有单根或若干钢筋或钢筋笼。
The invention provides a prestressed unbonded anchor rod steel bar. The prestressed unbonded anchor rod steel bar comprises a main steel bar body serving as a basic force bearing structure, the main steel bar body is a finish rolling steel bar or a common steel bar, an anti-corrosion grease layer is arranged on the surface of the main steel bar body, and a plastic film sleeve is arranged outside the anti-corrosion grease layer. The number of the main steel bar bodies is one or one to five, and the main steel bar body is of a main steel bar structure formed by connecting segmented reinforcing steel bars through connecting nuts. According to the prestressed anchor rod prepared from the unbonded anchor rod steel bars, the unbonded main steel bars are directly cast into the prestressed anchorrod through concrete, or the lower end of the prestressed anchor rod is connected with grouting bodies or concrete of expanded heads; the grouting body or concrete of the expanded head is internally wrapped with a steel reinforcement framework or a bag, wherein the steel reinforcement framework comprises one or more steel reinforcements, a steel reinforcement cage with a common structure and a variable-diameter steel reinforcement cage; an anti-floating tensile anchor rod of a concrete prefabricated pipe column is prepared when a steel reinforcement cage and a variable-diameter steel reinforcement cage of a common structure are adopted; one or more reinforcing steel bars are connected by using one or more reinforcing steel bar anchor rod reinforcing steel bars; and one or more reinforcingsteel bars or reinforcement cages are still arranged in the center of the bag.
一种预应力无粘结锚杆钢筋，包括主筋钢筋作为基本承力的结构，主筋钢筋为精轧钢筋或普通钢筋，主筋钢筋表面设有防腐油脂层，防腐油脂层外设有塑料薄膜套；主筋钢筋的数量是一根或一根至五根；主筋钢筋是将分段的钢筋通过连接螺母连接的主筋钢筋结构。无粘结锚杆钢筋制备的预应力锚杆，无粘结主筋钢筋直接混凝土浇铸成预应力锚杆或锚杆下端再连接扩大头的注浆体或混凝土；扩大头的注浆体或混凝土内裹钢筋骨架或囊袋，钢筋骨架包括单根或若干钢筋、普通结构的钢筋笼、变直径钢筋笼；普通结构的钢筋笼、变直径钢筋笼时混凝土预制的管柱的抗浮抗拉锚杆；使用单根或若干钢筋锚杆钢筋连接单根或若干钢筋；囊袋中央仍设有单根或若干钢筋或钢筋笼。
Prestressed unbonded anchor rod steel bar, anchor rod and construction method
一种预应力无粘结锚杆钢筋、锚杆及施工工法
2020-09-22
Patent
Electronic Resource
Chinese
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