A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Porous arch bridge water bag pre-pressing construction method
The invention discloses a porous arch bridge water bag pre-pressing construction method which comprises the following steps: S1, pre-pressing control tonnage and load classification are carried out, a pre-pressing coefficient is set to be 1.2, and a pre-pressing balance weight is calculated according to 1.2 times of the upper load of each span; s2, a water bag is adopted for prepressing, and the water bag is filled with water; s3, pre-pressing implementation and observation are carried out; s4, prepressing of a foundation and a support, in the step S3, measurement control points are arranged before prepressing construction, original data of the control points are collected, accurate lofting is conducted on the control points through a total station, the control points are arranged at arch feet, 1/8L, 1/4L, 3/8L and an arch crown, and five points are distributed on each section and distributed on bottom dies on the axis of a bridge and the two sides of an arch ring; according to the water bag pre-pressing construction method for the porous arch bridge, inelastic deformation of the foundation and the full framing of the porous arch bridge can be eliminated, construction safety is ensured, sand or gravel can be completely eliminated after pre-pressing is completed, and resources are saved.
本发明公开了一种多孔拱桥水袋预压施工方法，包括如下步骤：S1：预压控制吨位及荷载分级,预压系数设定为1.2，按每跨上部荷载的1.2倍计算出预压配重；S2：采用水袋进行预压，水袋内冲水；S3：预压实施及观测；S4：地基基础和支架预压的监，所述步骤S3中，在预压施工前布置测量控制点，做好控制点原始数据收集，采用全站仪对控制点进行精确放样，控制点布设在拱脚、1/8L、1/4L、3/8L、拱顶处，每断面五点，分布在桥轴线及拱圈两侧的底模上；该发明多孔拱桥水袋预压施工方法能够消除多孔拱桥地基基础及满堂支架非弹性变形，确保了施工安全，且能够使砂或碎石在预压完成后完全内消，节省资源。
Porous arch bridge water bag pre-pressing construction method
The invention discloses a porous arch bridge water bag pre-pressing construction method which comprises the following steps: S1, pre-pressing control tonnage and load classification are carried out, a pre-pressing coefficient is set to be 1.2, and a pre-pressing balance weight is calculated according to 1.2 times of the upper load of each span; s2, a water bag is adopted for prepressing, and the water bag is filled with water; s3, pre-pressing implementation and observation are carried out; s4, prepressing of a foundation and a support, in the step S3, measurement control points are arranged before prepressing construction, original data of the control points are collected, accurate lofting is conducted on the control points through a total station, the control points are arranged at arch feet, 1/8L, 1/4L, 3/8L and an arch crown, and five points are distributed on each section and distributed on bottom dies on the axis of a bridge and the two sides of an arch ring; according to the water bag pre-pressing construction method for the porous arch bridge, inelastic deformation of the foundation and the full framing of the porous arch bridge can be eliminated, construction safety is ensured, sand or gravel can be completely eliminated after pre-pressing is completed, and resources are saved.
本发明公开了一种多孔拱桥水袋预压施工方法，包括如下步骤：S1：预压控制吨位及荷载分级,预压系数设定为1.2，按每跨上部荷载的1.2倍计算出预压配重；S2：采用水袋进行预压，水袋内冲水；S3：预压实施及观测；S4：地基基础和支架预压的监，所述步骤S3中，在预压施工前布置测量控制点，做好控制点原始数据收集，采用全站仪对控制点进行精确放样，控制点布设在拱脚、1/8L、1/4L、3/8L、拱顶处，每断面五点，分布在桥轴线及拱圈两侧的底模上；该发明多孔拱桥水袋预压施工方法能够消除多孔拱桥地基基础及满堂支架非弹性变形，确保了施工安全，且能够使砂或碎石在预压完成后完全内消，节省资源。
Porous arch bridge water bag pre-pressing construction method
一种多孔拱桥水袋预压施工方法
ZHOU XIANG (author) / WANG HONGWEI (author) / LIU YANG (author) / LIU CHENGLONG (author) / ZHANG BINGBING (author)
2022-05-03
Patent
Electronic Resource
Chinese
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