A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Broken line type pre-tensioning method T beam prestress integral tensioning device
The invention discloses a counter-force piece which is composed of a pedestal concrete foundation and a counter-force column, the counter-force column is arranged on one side of the pedestal concrete foundation, and the counter-force piece is characterized in that four pull rod holes are formed in the counter-force column; the tensioning piece comprises a tensioning cross beam and a cross beam support, the cross beam support is fixed on the pedestal concrete foundation, the tensioning cross beam is fixed on the cross beam support, and the tensioning device is characterized in that four pull rod holes are formed in the tensioning cross beam; the force transmission device comprises four force transmission pull rods, four first nuts, four second nuts, four third nuts and four center hole jacks, and the force transmission pull rods penetrate through the center hole jacks, pull rod holes of the counter-force columns and pull rod holes of the tensioning cross beams and then are fixed to the counter-force columns and the tensioning cross beams through the first nuts and the second nuts respectively. The center hole jack is located on the left side of the counter-force column and fixedly connected with the force transmission pull rod through a third nut. The prestressed steel beam is composed of a plurality of force ribs, part of the force ribs are linear force ribs, part of the force ribs are broken line force ribs, the linear force ribs are located at the bottom of the prestressed steel beam and are in a horizontal linear shape, and the broken line force ribs are in the shape that the middle is linear and the two ends are inclined. Scientific calculation is carried out on the design of the pedestal, the counter-force column and the tensioning cross beam, the tensioning and releasing procedures are advanced and reasonable, and the method is suitable for factory-like manufacturing and machining.
本发明公开了反力件，反力件由台座混凝土基础和反力柱组成，台座混凝土基础的一侧设置有反力柱，其特征在于：反力柱上开设有4个拉杆孔；张拉件，该张拉件包括张拉横梁和横梁支架，横梁支架固定于台座混凝土基础上，张拉横梁固定于横梁支架上，其特征在于：张拉横梁上开设有4个拉杆孔；传力装置，该装置包括4根传力拉杆、4个第一螺母、4个第二螺母、4个第三螺母、4个穿心千斤顶，传力拉杆分别穿过穿心千斤顶、反力柱的拉杆孔与张拉横梁的拉杆孔后，分别通过第一螺母和第二螺母固定于反力柱和张拉横梁上，穿心千斤顶位于反力柱的左侧，通过第三螺母与传力拉杆固定连接；预应力钢束，预应力钢束由数根力筋组成，部分力筋为直线力筋，部分力筋为折线力筋，直线力筋位于预应力钢束底部，且呈水平直线状，折线力筋则呈中间直线两端倾斜状。本发明对台座、反力柱、张拉横梁的设计进行科学计算，张拉、放张程序先进、合理，适合工厂化制作、加工。
Broken line type pre-tensioning method T beam prestress integral tensioning device
The invention discloses a counter-force piece which is composed of a pedestal concrete foundation and a counter-force column, the counter-force column is arranged on one side of the pedestal concrete foundation, and the counter-force piece is characterized in that four pull rod holes are formed in the counter-force column; the tensioning piece comprises a tensioning cross beam and a cross beam support, the cross beam support is fixed on the pedestal concrete foundation, the tensioning cross beam is fixed on the cross beam support, and the tensioning device is characterized in that four pull rod holes are formed in the tensioning cross beam; the force transmission device comprises four force transmission pull rods, four first nuts, four second nuts, four third nuts and four center hole jacks, and the force transmission pull rods penetrate through the center hole jacks, pull rod holes of the counter-force columns and pull rod holes of the tensioning cross beams and then are fixed to the counter-force columns and the tensioning cross beams through the first nuts and the second nuts respectively. The center hole jack is located on the left side of the counter-force column and fixedly connected with the force transmission pull rod through a third nut. The prestressed steel beam is composed of a plurality of force ribs, part of the force ribs are linear force ribs, part of the force ribs are broken line force ribs, the linear force ribs are located at the bottom of the prestressed steel beam and are in a horizontal linear shape, and the broken line force ribs are in the shape that the middle is linear and the two ends are inclined. Scientific calculation is carried out on the design of the pedestal, the counter-force column and the tensioning cross beam, the tensioning and releasing procedures are advanced and reasonable, and the method is suitable for factory-like manufacturing and machining.
本发明公开了反力件，反力件由台座混凝土基础和反力柱组成，台座混凝土基础的一侧设置有反力柱，其特征在于：反力柱上开设有4个拉杆孔；张拉件，该张拉件包括张拉横梁和横梁支架，横梁支架固定于台座混凝土基础上，张拉横梁固定于横梁支架上，其特征在于：张拉横梁上开设有4个拉杆孔；传力装置，该装置包括4根传力拉杆、4个第一螺母、4个第二螺母、4个第三螺母、4个穿心千斤顶，传力拉杆分别穿过穿心千斤顶、反力柱的拉杆孔与张拉横梁的拉杆孔后，分别通过第一螺母和第二螺母固定于反力柱和张拉横梁上，穿心千斤顶位于反力柱的左侧，通过第三螺母与传力拉杆固定连接；预应力钢束，预应力钢束由数根力筋组成，部分力筋为直线力筋，部分力筋为折线力筋，直线力筋位于预应力钢束底部，且呈水平直线状，折线力筋则呈中间直线两端倾斜状。本发明对台座、反力柱、张拉横梁的设计进行科学计算，张拉、放张程序先进、合理，适合工厂化制作、加工。
Broken line type pre-tensioning method T beam prestress integral tensioning device
一种折线式先张法T梁预应力整体张拉装置
WU FEI (author) / WEN QIAN (author) / LI YONGGU (author) / QI TIAN (author) / HE CHAOFA (author) / WANG ZHIWU (author) / LUO SHUGANG (author) / ZHANG QING (author) / XU YANGFU (author) / TAN ZHICHENG (author)
2024-08-13
Patent
Electronic Resource
Chinese