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A platform for research: civil engineering, architecture and urbanism
Continuous square spiral stirrup and prefabricated reinforced concrete beam without pre-embedded lifting appliance
The invention discloses a continuous square spiral stirrup. The stirrup comprises at least two closed hoops, the bottoms of the two closed hoops are continuously bent and connected through a reinforcing steel bar to form a closed spiral stirrup; and the two closed hoops and the closed spiral stirrup are arranged on a prefabricated reinforced concrete beam body as a whole. The invention further provides the prefabricated reinforced concrete beam without a pre-embedded lifting appliance. According to the prefabricated reinforced concrete beam, the continuous spiral square hoops can be used as hoisting grabbing points of beams, and the stirrup is formed by continuously bending the reinforcing steel bar through a continuous hoop bending machine. The stirrup is continuously formed, steel bar loss is reduced, and machined continuous stirrups are high in efficiency and precision. Compared with an existing closed hoop, the continuous spiral square hoops of the prefabricated reinforced concretebeam are high in structural strength, hoisting jigs are detachably installed on the continuous spiral square hoops, a hoisting ring does not need to be embedded in the prefabricated manufacturing stage, and on the premise that the structural performance and the hoisting safety are guaranteed, the manufacturing procedures of the prefabricated beam and the manufacturing cost are reduced.
本发明公开了一种连续方螺旋箍筋，包括至少两个闭口箍，两个闭口箍的底部之间通过钢筋连续弯折连接形成闭合螺旋箍筋，两个闭口箍以及闭合螺旋箍筋作为整体设在预制钢筋混凝土梁主体上。本发明还提供了一种无预埋吊具预制钢筋混凝土梁。本发明预制钢筋混凝土梁以连续螺旋方箍上可作为梁的吊装抓持点，箍筋通过采用连续弯箍机将钢筋连续弯折成型。连续成形箍筋减少钢筋损耗，机械加工的连续箍筋，效率高、精度高。本发明预制钢筋混凝土梁的连续螺旋方箍相对于以往的闭口箍结构强度高，连续螺旋方箍上可拆卸安装吊装治具，在预制制作阶段无需预埋起吊环，在保证结构性能以及起吊安全性的前提下，减少了预制梁的制作工序及降低制作成本。
Continuous square spiral stirrup and prefabricated reinforced concrete beam without pre-embedded lifting appliance
The invention discloses a continuous square spiral stirrup. The stirrup comprises at least two closed hoops, the bottoms of the two closed hoops are continuously bent and connected through a reinforcing steel bar to form a closed spiral stirrup; and the two closed hoops and the closed spiral stirrup are arranged on a prefabricated reinforced concrete beam body as a whole. The invention further provides the prefabricated reinforced concrete beam without a pre-embedded lifting appliance. According to the prefabricated reinforced concrete beam, the continuous spiral square hoops can be used as hoisting grabbing points of beams, and the stirrup is formed by continuously bending the reinforcing steel bar through a continuous hoop bending machine. The stirrup is continuously formed, steel bar loss is reduced, and machined continuous stirrups are high in efficiency and precision. Compared with an existing closed hoop, the continuous spiral square hoops of the prefabricated reinforced concretebeam are high in structural strength, hoisting jigs are detachably installed on the continuous spiral square hoops, a hoisting ring does not need to be embedded in the prefabricated manufacturing stage, and on the premise that the structural performance and the hoisting safety are guaranteed, the manufacturing procedures of the prefabricated beam and the manufacturing cost are reduced.
本发明公开了一种连续方螺旋箍筋，包括至少两个闭口箍，两个闭口箍的底部之间通过钢筋连续弯折连接形成闭合螺旋箍筋，两个闭口箍以及闭合螺旋箍筋作为整体设在预制钢筋混凝土梁主体上。本发明还提供了一种无预埋吊具预制钢筋混凝土梁。本发明预制钢筋混凝土梁以连续螺旋方箍上可作为梁的吊装抓持点，箍筋通过采用连续弯箍机将钢筋连续弯折成型。连续成形箍筋减少钢筋损耗，机械加工的连续箍筋，效率高、精度高。本发明预制钢筋混凝土梁的连续螺旋方箍相对于以往的闭口箍结构强度高，连续螺旋方箍上可拆卸安装吊装治具，在预制制作阶段无需预埋起吊环，在保证结构性能以及起吊安全性的前提下，减少了预制梁的制作工序及降低制作成本。
Continuous square spiral stirrup and prefabricated reinforced concrete beam without pre-embedded lifting appliance
一种连续方螺旋箍筋及无预埋吊具预制钢筋混凝土梁
YIN YANLIANG (author) / ZHAN YAOYU (author)
2021-01-12
Patent
Electronic Resource
Chinese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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