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CN-117023446-B - Large-span truss system integral lifting structure in narrow space

CN117023446BCN 117023446 BCN117023446 BCN 117023446BCN-117023446-B

Abstract

The invention discloses an integral lifting structure of a large-span truss system in a narrow space, which comprises a supporting steel column and lifting brackets, wherein connecting steel columns are arranged on two sides of the supporting steel column, truss brackets are arranged on the inner sides of the supporting steel column, the lifting brackets are arranged on the side edges of the truss brackets, side edge reinforcing assemblies and vertical reinforcing assemblies are arranged on the end faces of the lifting brackets, bottom vibration-proof assemblies are arranged at the bottom ends of the lifting brackets, notch rings are arranged on the inner sides of the bottom vibration-proof assemblies, support assemblies are arranged on the side edges of the notch rings, and connecting supports are arranged between the adjacent support assemblies.

Inventors

  • KONG WEIZHENG
  • PENG LEI
  • XIE JIANPING
  • ZHANG ZHIQIANG
  • LIU YALING
  • LI SILIN

Assignees

  • 中建四局安装工程有限公司

Dates

Publication Date
20260505
Application Date
20230831

Claims (7)

  1. 1. The utility model provides a large-span truss system integral lifting structure in narrow and small space, includes support steel column (1) and lifting support (4), the both sides of support steel column (1) all are equipped with connection steel column (2), the inboard of support steel column (1) is equipped with truss bracket (3), its characterized in that, the side of truss bracket (3) is equipped with lifting support (4), the terminal surface of lifting support (4) is equipped with side reinforcement subassembly (5) and vertical reinforcement subassembly (6), the bottom of lifting support (4) is equipped with bottom vibration isolation subassembly (7), the inboard of bottom vibration isolation subassembly (7) is equipped with breach ring (10), the side of breach ring (10) is equipped with support subassembly (11), and is adjacent be equipped with between support subassembly (11) connection support (13).
  2. 2. The large-span truss system integral lifting structure in a narrow space is characterized in that the side reinforcing component (5) is fixed on the surface of the connecting steel column (2) through bolts, the vertical reinforcing component (6) is fixed on the surface of the supporting steel column (1) through bolts, the side reinforcing component (5) is in triangular reinforcing arrangement with the connecting steel column (2) and the truss bracket (3), and the vertical reinforcing component (6) is in triangular reinforcing arrangement with the supporting steel column (1) and the truss bracket (3).
  3. 3. The large-span truss system integral lifting structure in a narrow space of claim 1 is characterized in that a steel strand placing groove is formed in the inner side of the lifting support (4), a rotary groove (9) is formed in the inner side of the bottom vibration-proof assembly (7), a notch ring (10) is arranged on the inner side of the rotary groove (9), and the notch ring (10) is arranged below the steel strand placing groove.
  4. 4. The large-span truss system integral lifting structure in a narrow space of claim 1 is characterized in that a connecting component (8) is arranged at the top end of the bottom vibration-proof component (7), the connecting component (8) is arranged on the inner side of the lifting support (4) in a penetrating mode, and the top end of the connecting component (8) is arranged on an anti-falling protrusion located in the lifting support (4).
  5. 5. The large-span truss system integral lifting structure in a small space according to claim 3, wherein positioning shaft pieces (12) are connected between adjacent support assemblies (11) through bolts, and the positioning shaft pieces (12) penetrate through the inner sides of the support (13).
  6. 6. The large-span truss system integral lifting structure in a small space of claim 5, wherein the top end of the connecting support (13) is detachably connected with a bolt connecting gasket (14) through a bolt, and the end face of the vertical reinforcing component (6) is provided with a spiral groove corresponding to the bolt on the bolt connecting gasket (14).
  7. 7. The method for lifting the whole lifting structure of the large-span truss system in the small space according to claim 6, which is characterized by comprising the following steps: The method comprises the steps that firstly, a hydraulic lifter is used as a lifting tool, a flexible steel rope is used as a bearing rigging, wedge-shaped anchors at two ends of the hydraulic lifter are used for automatically locking the steel rope, lifting brackets (4) are arranged at two sides of truss brackets (3) through bolts, and then the hydraulic lifter is arranged on the lifting brackets (4); Secondly, a side reinforcing assembly (5) and a vertical reinforcing assembly (6) are respectively arranged between the lifting support (4) and the connecting steel column (2) and between the lifting support (4) and the supporting steel column (1) by bolts; Thirdly, rotating the connecting support (13) to be horizontal by taking the positioning shaft (12) as the center, then rotating the notch ring (10) until the notch of the connecting support coincides with the notch of the bottom vibration-proof assembly (7), and arranging the flexible steel strand in the notch ring (10) and the steel strand placing groove at the inner side of the lifting bracket (4) through the notch; Thirdly, connecting the bolt connection gasket (14) with the connection support (13) through a bolt, then rotating the notch ring (10) to enable the connection support (13) to face the vertical reinforcement assembly (6), and adjusting the connection support (13) to enable the bolt connection gasket (14) to be attached to the vertical reinforcement assembly (6) and fixed through the bolt; and fourthly, uniformly arranging lower lifting points at equal intervals at the positions of lower chords of the truss to be lifted, connecting different groups of flexible steel strands connected with the hydraulic lifter with lower lifting point hooks for lifting the truss, and automatically locking the steel strands when wedge-shaped anchors at two ends of the hydraulic lifter work to integrally lift the truss to be lifted.

Description

Large-span truss system integral lifting structure in narrow space Technical Field The invention relates to the technical field of steel structure construction, in particular to an integral lifting structure of a large-span truss system in a narrow space. Background The traditional truss integrally lifted upper lifting point support is arranged on a structure to be lifted and is generally attached to a vertical stress member, such as a column, the lower lifting point is connected with the structure to be lifted, and the lifting structure is pulled by a hydraulic lifting device to replace lifting construction. And because the installation of the multi-layer large-span truss structure can only be carried out by firstly installing the roof in consideration of the large-span structure on the upper part of the multi-layer large-span truss structure, the multi-layer large-span truss structure is installed in an integral lifting mode due to the structural specificity of the multi-layer large-span truss structure, but in part positions, the height difference between the roof and the truss erection height is insufficient for setting an upper lifting point support for integral lifting of the truss, hydraulic lifting equipment for lifting cannot be installed, and therefore part lower lifting points cannot be effectively lifted when the truss structure is integrally lifted, and the normal integral lifting effect cannot be achieved. Disclosure of Invention The invention aims to provide an integral lifting structure of a large-span truss system in a narrow space, so as to solve the problems in the background technology. In order to achieve the purpose, the technical scheme is that the whole lifting structure of the large-span truss system in the narrow space comprises supporting steel columns and lifting supports, wherein connecting steel columns are arranged on two sides of each supporting steel column, truss brackets are arranged on the inner sides of the supporting steel columns, lifting supports are arranged on the side edges of the truss brackets, side edge reinforcing assemblies and vertical reinforcing assemblies are arranged on the end faces of the lifting supports, bottom vibration prevention assemblies are arranged at the bottom ends of the lifting supports, notch rings are arranged on the inner sides of the bottom vibration prevention assemblies, support assemblies are arranged on the side edges of the notch rings, and connecting supports are arranged between the adjacent support assemblies. Further, the side reinforcing component is fixed on the surface of the connecting steel column through bolts, the vertical reinforcing component is fixed on the surface of the supporting steel column through bolts, the side reinforcing component and the connecting steel column and the truss bracket are in triangular reinforcing arrangement, and the vertical reinforcing component and the supporting steel column and the truss bracket are in triangular reinforcing arrangement. Further, the inside of lifting support is equipped with steel stranded rope standing groove for the hydraulic lifter installs the placing of back steel stranded rope on lifting support, the rotary groove has been seted up to the inboard of bottom antivibration subassembly, the breach ring sets up in the rotary groove inboard for the rotation to the breach ring is fixed a position, the breach ring is located steel stranded rope standing groove below setting, realizes that steel stranded rope sets up simultaneously in steel stranded rope standing groove and breach intra-annular. Further, the top of bottom antivibration subassembly is equipped with coupling assembling, coupling assembling wears to locate the inboard that promotes the support, coupling assembling is with the bottom antivibration subassembly with promote the connection between the support, coupling assembling's top is located and is promoted the inside anticreep arch of support for prevent that coupling assembling from dropping in the support from promoting. Further, a positioning shaft is connected between the adjacent support assemblies through bolts, penetrates through the inner sides of the connecting supports, and is used for positioning the connecting supports between the adjacent support assemblies and positioning a rotating shaft in the rotating process of the connecting supports. Further, the top end of the connecting support is detachably connected with a bolt connecting gasket through a bolt, and the end face of the vertical reinforcing component is provided with a spiral groove corresponding to the bolt on the bolt connecting gasket, so that the joint and the correspondence of the bolt connecting gasket and the end face of the vertical reinforcing component are facilitated. Further, a lifting method of the whole lifting structure of the large-span truss system in a narrow space comprises the following steps: The method comprises the steps that firstly, a hydraulic lifter is used