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CN-121992868-A - Pretensioned prestressing assembled composite structure

CN121992868ACN 121992868 ACN121992868 ACN 121992868ACN-121992868-A

Abstract

The invention relates to the technical field of assembled combined structures, in particular to a pretensioned prestressing assembled combined structure. The steel tube concrete column assembly comprises an assembled structural main body, wherein the assembled structural main body comprises a plurality of steel tube concrete columns, a plurality of square lantern ring frames are welded on the outer sides of the steel tube concrete columns, beam column positioning assemblies are installed on the outer sides of the assembled structural main body, and each beam column positioning assembly comprises a beam column positioning frame sleeved on the outer sides of the steel tube concrete columns. According to the invention, the friction fixing mechanism of the telescopic bidirectional hinging rod and the collar frame in the beam column positioning assembly is used for replacing manual hole position alignment, so that the adjustment time is shortened, meanwhile, a worker can release both hands, and can operate the bolts by both hands, thereby avoiding the falling risk caused by single-hand stabilization, and meeting the safety requirement of intelligent construction.

Inventors

  • GU LEI
  • HUANG HAI
  • GAO WENSHUANG
  • WANG KEQUAN
  • CHEN XINYU

Assignees

  • 深圳市特区建工科工集团有限公司

Dates

Publication Date
20260508
Application Date
20260323

Claims (10)

  1. 1. The pretensioned prestressing assembled type combined structure comprises an assembled structural main body (1) and is characterized in that the assembled structural main body (1) comprises a plurality of concrete filled steel tube columns (101), and a plurality of square lantern ring frames (102) are welded on the outer sides of the concrete filled steel tube columns (101); The beam column positioning assembly comprises a beam column positioning frame (201) sleeved on the outer side of a concrete filled steel tube column (101), an L-shaped positioning frame (205) is connected to the bottom of the beam column positioning frame (201) through bolts, a telescopic bidirectional hinging rod (207) is hinged to the outer side of the L-shaped positioning frame (205), a double-layer positioning frame (203) is hinged to the telescopic end of the telescopic bidirectional hinging rod (207), the double-layer positioning frame (203) is slidably mounted in the L-shaped positioning frame (205) through a sliding groove, a built-in threaded block (210) is fixedly mounted in the double-layer positioning frame (203), a threaded positioning rod (204) is mounted in internal threads of the built-in threaded block (210), a circular ring positioning block (208) is rotatably mounted on one side, penetrating through the built-in threaded positioning rod (204), and a friction sleeve block (206) is rotatably mounted on one side, far away from the L-shaped positioning frame (205), of the telescopic bidirectional hinging rod (207).
  2. 2. The pretensioned prestressing assembled composite structure according to claim 1, wherein two sets of concrete layers (106) are provided in the middle of the plurality of steel tube concrete columns (101), and a plurality of sets of prefabricated multi-ribbed plates (107) are provided between the two sets of concrete layers (106).
  3. 3. The pretensioned prestressing assembled composite structure according to claim 1, wherein the L-shaped positioning frame (205) is provided with a receiving groove on a side facing the steel pipe concrete column (101), and the telescopic bidirectional hinge rod (207) is received in the receiving groove in a normal state.
  4. 4. A pretensioned prestressing assembled combination structure according to claim 3, characterized in that a rubber collar (209) is inserted between the double-layer locating frame (203) and the built-in screw thread block (210), the rubber collar (209) and the built-in screw thread block (210) are arranged in a close fitting state, and a beam column locating frame (202) is installed on a bottom bolt of the L-shaped locating frame (205).
  5. 5. The pre-tensioned assembled structure of claim 4 wherein a primary pre-tensioned beam (104) is attached to an outer periphery of a plurality of the steel core concrete columns (101) via a beam positioning frame (202), and wherein a secondary pre-tensioned beam (105) is attached to an inner periphery of a plurality of the steel core concrete columns (101) via a beam positioning frame (202).
  6. 6. The pretensioned prestressing assembled type composite structure according to claim 5, wherein a plurality of beam and column positioning frames (201) are connected with an auxiliary connecting piece (212) through bolts, and a plurality of beam and column positioning frames (202) are connected with a connecting sleeve frame (211) through bolts.
  7. 7. The pretensioned prestressing assembled type combined structure according to claim 5, wherein the steel bar positioning assembly (3) is slidably mounted in the beam column positioning assembly (2) through a sliding groove, the steel bar positioning assembly (3) comprises a transverse groove frame (301) mounted on the top of the circular ring positioning block (208) through a bolt, and a threaded telescopic column (304) is arranged on the top of the transverse groove frame (301).
  8. 8. A pretensioned prestressing assembled combination according to claim 7, wherein the bar positioning assembly (3) further comprises a built-in screw slider (302) slidably mounted inside the transversal channel (301), the internal screw of the built-in screw slider (302) being mounted with a screw hole post (303).
  9. 9. The pretensioned prestressing assembled type composite structure according to claim 8, wherein a steel bar positioning hole (103) in a penetrating state is formed in the surface of the steel tube concrete column (101), a steel bar (4) is installed in the assembled type structural body (1), the steel bar (4) is inserted into the steel bar positioning hole (103), and the steel bar (4) is slidably installed in the threaded hole column (303) through one side of the steel bar positioning hole (103).
  10. 10. The pre-tensioned assembled structure of claim 9 wherein the primary pre-tensioned beam (104) and the secondary pre-tensioned beam (105) are both encased between two concrete layers (106) of steel reinforcement (4).

Description

Pretensioned prestressing assembled composite structure Technical Field The invention relates to the technical field of assembled combined structures, in particular to a pretensioned prestressing assembled combined structure. Background The PCRC product system takes 'standardized design, industrial production and on-site rapid assembly' as a core characteristic, and is mainly used for solving the problems of low construction efficiency, large resource consumption, serious environmental pollution and the like of the traditional cast-in-situ structure. Meanwhile, the system is mainly applied to multi-high-rise buildings (such as industrial plants, commercial complexes, intelligent construction parks and the like) with large span, large story height and large load, and prefabrication and assembly of parts such as steel columns, prestressed beams, multi-rib plates and the like are realized, 100% factory prefabrication and 100% field assembly are realized, a template and a supporting system of a traditional structure are omitted, the construction efficiency is greatly improved, and the construction efficiency is further improved. The pretensioned prestressing assembled composite structure is a novel structure form combining pretensioned prestressing technology and an assembled structure, pretensioned prestressing tendons (such as steel strands and steel wires) and pre-stressing stress is applied to concrete, so that the cracking resistance and bearing capacity of the components are improved, and meanwhile, on-site assembly of the prefabricated components is performed, on-site wet operation is reduced, so that the combination of the pretensioned prestressing tendons and the steel wires can promote standardized and large-scale production of building components, and intelligent construction application is supported. In the published patent document with the publication number of CN105735464B, an assembled composite structure and an installation method thereof are disclosed, wherein the assembled composite structure comprises a steel pipe concrete composite column, the composite column is composed of a steel pipe and concrete filled in the steel pipe, the side wall of the composite column is provided with an I-shaped steel beam, a reinforced concrete plate is arranged on the steel beam, a through hole for the composite column to pass through is arranged on the reinforced concrete plate, and the reinforced concrete plate is fixedly connected on the upper flange of the steel beam through a plurality of bolt shearing connectors. The device has simple structure, stable structure and convenient installation and transportation. The existing assembled combined structure is mainly connected by adopting a bolt mode, but the tensioning of the prestressed tendons possibly leads to loosening of the bolts in the construction process, so that the rigidity of joints is affected, and meanwhile, the compression resistance of the cross section of a component can be weakened only by utilizing the arrangement of bolt hole positioning, so that the bearing capacity of the construction structure is reduced. Disclosure of Invention The invention aims to solve the problem that in the background art, the compression resistance of the cross section of a component can be weakened only by utilizing the arrangement of bolt hole positioning, so that the bearing capacity of a construction structure is reduced, and provides a pretensioned prestressing assembled type combined structure. The technical scheme of the invention is that the pretensioned prestressing assembled type combined structure comprises an assembled type structural main body, wherein the assembled type structural main body comprises a plurality of concrete filled steel tube columns, and a plurality of square lantern ring frames are welded on the outer sides of the concrete filled steel tube columns; The beam column locating component is installed in the outside of assembled structure main part, beam column locating component is including cup jointing the beam column locating rack in the steel core concrete column outside, the bottom bolted connection of beam column locating rack has L shape locating rack, the outside of L shape locating rack articulates there is telescopic two-way articulated pole, telescopic end of telescopic two-way articulated pole articulates there is double-deck locating rack, double-deck locating rack passes through spout slidable mounting in the inside of L shape locating rack, the inside fixed mounting of double-deck locating rack has built-in screw thread piece, the screw thread locating lever is installed to the internal thread of built-in screw thread piece, screw thread locating lever passes one side rotation of built-in screw thread piece and installs the ring locating piece, one side rotation that L shape locating rack was kept away from to telescopic two-way articulated pole is installed friction sleeve piece. Optionally, two groups of concrete layer