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Shipment transportation method for large prestressed concrete prefabricated box girder
The invention discloses a shipment transportation method for a large prestressed concrete prefabricated box girder. The shipment transportation method comprises the following steps of calculating thegravity center position of the box girder, designing the arrangement positions of an SPMT, a distributive girder and a hoisting girder, marking the plane positions of the SPMT, the distributive girderand the hoisting girder on the ground below the box girder, and centering an SPMT bearing center and the theoretical gravity center of the box girder; and then loading the distributive girder and thehoisting girder to the bottom of the box girder through the SPMT, and achieving stable transportation and shipment of the box girder through reasonable jacking. According to the scheme, the problem of uneven stress can be solved, the accuracy and the working efficiency of centering of the SPMT vehicle set bearing center and the gravity center of the box girder are improved, the stability and thesafety of jacking and transporting the box girder by the SPMT are improved, and the box girder is prevented from being twisted or a top plate is prevented from being pulled and damaged.
本发明公开了一种大型预应力混凝土预制箱梁的装船运输方法，计算出箱梁的重心位置，设计出SPMT布车及分配梁、吊装梁的布置位置，在箱梁下方地面上标识SPMT及分配梁、吊装梁的平面位置，完成SPMT承载中心与箱梁理论重心的对中，然后利用SPMT装载分配梁和吊装梁至箱梁底部，通过合理顶升以实现箱梁的平稳运输装船；此方案能够解决受力不均的问题，提高SPMT车组承载中心和箱梁重心对中的准确度和工效，提高SPMT顶升、运输箱梁的平稳性和安全性，防止箱梁受扭或顶板受拉破坏。
Shipment transportation method for large prestressed concrete prefabricated box girder
The invention discloses a shipment transportation method for a large prestressed concrete prefabricated box girder. The shipment transportation method comprises the following steps of calculating thegravity center position of the box girder, designing the arrangement positions of an SPMT, a distributive girder and a hoisting girder, marking the plane positions of the SPMT, the distributive girderand the hoisting girder on the ground below the box girder, and centering an SPMT bearing center and the theoretical gravity center of the box girder; and then loading the distributive girder and thehoisting girder to the bottom of the box girder through the SPMT, and achieving stable transportation and shipment of the box girder through reasonable jacking. According to the scheme, the problem of uneven stress can be solved, the accuracy and the working efficiency of centering of the SPMT vehicle set bearing center and the gravity center of the box girder are improved, the stability and thesafety of jacking and transporting the box girder by the SPMT are improved, and the box girder is prevented from being twisted or a top plate is prevented from being pulled and damaged.
本发明公开了一种大型预应力混凝土预制箱梁的装船运输方法，计算出箱梁的重心位置，设计出SPMT布车及分配梁、吊装梁的布置位置，在箱梁下方地面上标识SPMT及分配梁、吊装梁的平面位置，完成SPMT承载中心与箱梁理论重心的对中，然后利用SPMT装载分配梁和吊装梁至箱梁底部，通过合理顶升以实现箱梁的平稳运输装船；此方案能够解决受力不均的问题，提高SPMT车组承载中心和箱梁重心对中的准确度和工效，提高SPMT顶升、运输箱梁的平稳性和安全性，防止箱梁受扭或顶板受拉破坏。
Shipment transportation method for large prestressed concrete prefabricated box girder
一种大型预应力混凝土预制箱梁的装船运输方法
LI HONGBIN (author) / WANG WEIZHI (author) / TANG MING (author) / ZHANG KEHAO (author) / LI HANBO (author) / YANG WU (author) / LU JIANMING (author) / GAN LI (author) / HU ENCHUN (author) / YU JUNZHI (author)
2020-12-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken