Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed self-locking prefabricated concrete small box girder inner mold construction method
The invention discloses a prestressed self-locking prefabricated concrete small box girder inner mold construction method which comprises the steps that a plurality of girder body sections are coaxially placed, and the sides, close to each other, of every two adjacent girder body sections are connected in a matched mode through a conical pin shaft and a conical pin sleeve; prestressed tendons penetrate into the four mounting channels respectively, and the multiple beam body sections which are sequentially arranged are connected in series through the prestressed tendons; fixing pieces are arranged at one ends of the prestressed tendons, and the ends of the prestressed tendons and one ends of the spliced beam body sections are fixed through the fixing pieces; the other end of the prestressed tendon is coaxially connected with a deformed steel bar connecting rod through a wire rod connector, and a nut is installed on the deformed steel bar connecting rod; and the prestressed tendons are pulled in a diagonal tensioning mode until the conical pin shafts and the conical pin sleeves of the two adjacent beam body sections are locked in a matched mode, and the nuts are tightened. The construction method is simple and easy to operate, and the inner mold of the small concrete box girder can be quickly mounted and dismounted by stretching the prestressed tendons.
本发明公开一种预应力自锁型的预制混凝土小箱梁内模施工方法，该方法包括：将多个梁身节段同轴摆放，相邻的两个梁身节段互相靠近的一侧通过锥形销轴和锥形销套配合连接；分别在四个安装通道内穿入预应力筋，通过预应力筋将依次设置的多个梁身节段串联起来；在预应力筋的一端设置固定件，通过固定件将预应力筋的端部与拼接在一起的梁身节段的一端固定；在预应力筋的另一端通过线杆连接器同轴连接一个螺纹钢连接杆，在螺纹钢连接杆上安装螺母；以对角张拉的方式拉拽预应力筋，直至相邻两个梁身节段的锥形销轴和锥形销套配合锁死，拧紧螺母。本发明的施工方法简单、易操作，能够通过对预应力筋的拉伸实现对混凝土小箱梁内模的快速安装与拆卸。
Prestressed self-locking prefabricated concrete small box girder inner mold construction method
The invention discloses a prestressed self-locking prefabricated concrete small box girder inner mold construction method which comprises the steps that a plurality of girder body sections are coaxially placed, and the sides, close to each other, of every two adjacent girder body sections are connected in a matched mode through a conical pin shaft and a conical pin sleeve; prestressed tendons penetrate into the four mounting channels respectively, and the multiple beam body sections which are sequentially arranged are connected in series through the prestressed tendons; fixing pieces are arranged at one ends of the prestressed tendons, and the ends of the prestressed tendons and one ends of the spliced beam body sections are fixed through the fixing pieces; the other end of the prestressed tendon is coaxially connected with a deformed steel bar connecting rod through a wire rod connector, and a nut is installed on the deformed steel bar connecting rod; and the prestressed tendons are pulled in a diagonal tensioning mode until the conical pin shafts and the conical pin sleeves of the two adjacent beam body sections are locked in a matched mode, and the nuts are tightened. The construction method is simple and easy to operate, and the inner mold of the small concrete box girder can be quickly mounted and dismounted by stretching the prestressed tendons.
本发明公开一种预应力自锁型的预制混凝土小箱梁内模施工方法，该方法包括：将多个梁身节段同轴摆放，相邻的两个梁身节段互相靠近的一侧通过锥形销轴和锥形销套配合连接；分别在四个安装通道内穿入预应力筋，通过预应力筋将依次设置的多个梁身节段串联起来；在预应力筋的一端设置固定件，通过固定件将预应力筋的端部与拼接在一起的梁身节段的一端固定；在预应力筋的另一端通过线杆连接器同轴连接一个螺纹钢连接杆，在螺纹钢连接杆上安装螺母；以对角张拉的方式拉拽预应力筋，直至相邻两个梁身节段的锥形销轴和锥形销套配合锁死，拧紧螺母。本发明的施工方法简单、易操作，能够通过对预应力筋的拉伸实现对混凝土小箱梁内模的快速安装与拆卸。
Prestressed self-locking prefabricated concrete small box girder inner mold construction method
一种预应力自锁型的预制混凝土小箱梁内模施工方法
CUI WEI (Autor:in) / ZHANG YAOSHENG (Autor:in) / ZHANG CHUNLEI (Autor:in) / ZHANG XUCHANG (Autor:in) / LI ENLIANG (Autor:in) / SHI JUN (Autor:in) / YANG ZHIGANG (Autor:in) / XIAO RONG (Autor:in) / WEI MINGGUANG (Autor:in)
03.10.2023
Patent
Elektronische Ressource
Chinesisch
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