CN212688721U

CN212688721U - Jig frame for hoop prestress assembly type installation

Info

Publication number: CN212688721U
Application number: CN202021207100.9U
Authority: CN
Inventors: 袁博; 王全; 李冬
Original assignee: China Railway 12th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-12
Anticipated expiration: 2030-06-28

Abstract

The utility model belongs to the technical field of cable-stay bridge pylon anchor district hoop prestressing force construction, specifically a bed-jig for hoop prestressing force assembled installation. The problems that the existing hoop prestress is high in beam penetrating difficulty, the curve corrugated pipe is difficult to position, the high-altitude operation of personnel is inconvenient and the like are solved, and the method comprises a processing jig frame and a unit jig frame. The processing jig frame comprises a square frame I which is formed by overlapping a cross rod of the processing jig frame and a longitudinal rod of the processing jig frame, and a plurality of adjustable triangular frames are arranged along a square ring of the square frame I; the unit jig frame comprises a unit jig frame transverse rod and a unit jig frame longitudinal rod which are arranged into a 'return' type frame II, a unit jig frame small transverse rod is arranged on the 'return' type frame II along a circle in a 'return' shape, and a circular prestress pipeline is arranged on the unit jig frame small transverse rod in an erected mode. The utility model discloses device easy operation, swift has improved the efficiency of construction to improve hoop prestressing force's positioning accuracy, guaranteed prestressing force's stretch-draw and the atress condition in later stage, improved the life-span of structure.

Description

Jig frame for hoop prestress assembly type installation

Technical Field

The utility model belongs to the technical field of cable-stay bridge pylon anchor district hoop prestressing force construction, specifically a bed-jig for hoop prestressing force assembled installation.

Background

The prestress is compressive stress applied to the structure in advance during construction, tensile stress caused by load can be completely or partially offset, structural damage is avoided, the prestress is commonly used for a concrete structure, the structure does not crack under the condition of normal use, the prestress is used as an anchoring area of a stay cable tower column of a cable-stayed bridge, the tension of a stay cable and the load of a beam part are mainly borne, the stress is that a longitudinal bridge is pulled towards the tower wall, a transverse bridge is pulled towards the middle tower wall, the stress of the structure is generally improved by setting the prestress, compared with the arrangement of the prestress in a shape like a Chinese character jing, the design of the annular prestress can save construction cost, and the stress is more reasonable.

The hoop prestressing steel bundle is because crooked radius is little, the angle is big, it is big to have the bundle degree of difficulty of wearing, the curve bellows location is difficult, shortcoming such as personnel's inconvenient operation, this utility model utilizes strength nature skeleton material in the tower to customize into one set of bed-jig in the factory, possible standard production is accomplished with hoop prestressing force, the workman of being more convenient for carries out crooked location installation with hoop prestressing force, and the bed-jig strength nature of utilizing strength nature skeleton material in the tower to make is fixed, transport to the on-the-spot after recycle tower crane hoist and mount to the pier stud in, and the crooked degree of difficulty of wearing the bundle that reduces.

Disclosure of Invention

The utility model discloses a solve that current hoop prestressing force is worn to restraint the degree of difficulty big, curve bellows location is difficult, the inconvenient scheduling problem of personnel high altitude operation, provide a bed-jig for hoop prestressing force assembled installation.

The utility model adopts the following technical proposal: a jig frame for hoop prestress assembly type installation comprises a processing jig frame and a unit jig frame.

The processing jig frame comprises a 'return' frame I which is formed by overlapping a cross rod of the processing jig frame and a longitudinal rod of the processing jig frame, a plurality of adjustable tripods are arranged along a 'return' ring of the 'return' frame I, a plurality of adjustable vertical rods I used for supporting are vertically fixed on the 'return' frame I, and long notches are formed in the upper ends of the adjustable vertical rods I.

The unit bed-jig includes that unit bed-jig horizontal pole and unit bed-jig vertical pole are set up into "returning" type frame II, "returning" type frame II is provided with the little horizontal pole of unit bed-jig along the circle of "returning" style of calligraphy, and the little horizontal pole of unit bed-jig erects the hoop prestressing force pipeline on, "returning" type frame II is vertical to be fixed with a plurality of adjustable pole settings II that are used for the support, and the round hole notch is seted up to adjustable pole setting II lower extreme, and the round hole notch is interior to be inserted and is equipped with pole setting fixing bolt.

Furthermore, adjustable pole setting II and adjustable pole setting I one-to-one set up, adjustable pole setting II's pole setting fixing bolt and adjustable pole setting I's microscler notch fastening connection, adjustable tripod supports hoop prestressing force pipeline.

Further, the adjustable tripod comprises an adjustable vertical rod of the tripod, an inclined rod of the adjustable tripod and a cross rod of the adjustable tripod, the cross rod of the adjustable tripod is erected between the frame I in a shape like a Chinese character 'hui', an adjustable tripod clamping groove is formed in the cross rod of the adjustable tripod, the lower end of the adjustable vertical rod of the tripod is fixed on the adjustable tripod clamping groove through a bolt, and the upper end of the adjustable vertical rod of the tripod is fixed with the annular prestressed pipeline through a pipeline U-shaped clamp.

Furthermore, the upper end of the adjustable vertical rod of the tripod is hinged with one end of an adjustable tripod diagonal rod, and the other end of the adjustable tripod diagonal rod is fixedly connected with the adjustable tripod clamping groove through a bolt.

Compared with the prior art, the utility model discloses possible strength nature skeleton material that utilizes the pier stud is customized into the hoop prestressing force skeleton of assembled, the installation of traditional completion hoop prestressing force in the high altitude has been overcome and operations such as bundle are worn, the hoop prestressing force difficulty of wearing has been solved, when the inconvenient shortcoming of personnel high altitude operation, and do not cause the increase of cost, device easy operation, it is swift, construction efficiency is improved, and the positioning accuracy of hoop prestressing force has been improved, guarantee the stretch-draw of prestressing force and the atress condition in later stage, the life-span of structure thing has been improved.

Drawings

FIG. 1 is a plan view of the processing jig of the present invention;

FIG. 2 is a schematic view of the adjustable triangular adjusting bracket of the present invention;

FIG. 3 is a front elevation view of the processing jig of the present invention;

FIG. 4 is a plan view of the unit jig of the present invention;

FIG. 5 is a front elevation view of the unit jig of the present invention;

FIG. 6 is a schematic view of the connection between the factory-customized jig and the unit jig of the present invention;

FIG. 7 is a schematic view of the connection of each unit jig of the present invention;

in the figure, 1-an adjustable tripod, 2.1-an adjustable upright I, 2.2-an adjustable upright II, 3-a processing jig frame longitudinal rod, 4-a processing jig frame cross rod, 5-a tripod adjustable upright, 6-a circumferential prestress pipeline, 7-an adjustable tripod diagonal rod, 8-an adjustable tripod clamping groove, 9-a long notch, 10-an upright fixing bolt, 11-a pipeline U-shaped clamp, 12-an adjustable tripod cross rod, 13-a unit jig frame longitudinal rod, 14-a unit jig frame cross rod, 15-a unit jig frame adjustable upright and 16-a unit jig frame small cross rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A jig frame for hoop prestress assembly type installation comprises a processing jig frame and a unit jig frame.

As shown in fig. 1 and 3, the processing jig frame includes a "return" frame I formed by overlapping a processing jig frame cross rod 4 and a processing jig frame longitudinal rod 3, the "return" frame I is provided with a plurality of adjustable triangular frames 1 along a "return" ring, a plurality of adjustable upright rods I2.1 for supporting are vertically fixed on the "return" frame I, and the upper ends of the adjustable upright rods I2.1 are provided with long notches 9. The adjustable tripod type vertical clamping fixture is convenient to be connected with a unit jig in an up-and-down adjustable mode, wherein small cross rods of the jig manufactured and processed in a factory are all installed through the adjustable tripod 1, and then the adjustable tripod 1 is adjusted to the prestress curve of design requirements according to the circumferential prestress curve of the design drawing requirements.

As shown in fig. 4 and 5, the unit jig comprises a unit jig cross bar 14 and a unit jig longitudinal bar 13, which are built into a 'return' type frame II, the 'return' type frame II is provided with a unit jig small cross bar 16 along a 'return' shaped ring, the unit jig small cross bar 16 is erected with a circumferential prestressed pipeline 6, the 'return' type frame II is vertically fixed with a plurality of adjustable vertical bars II2.2 for supporting, the lower ends of the adjustable vertical bars II2.2 are provided with circular hole notches, and vertical bar fixing bolts 10 are inserted in the circular hole notches. Is convenient for being connected with the unit jig frame and the processing jig frame in an up-and-down adjustable way.

Adjustable pole setting II2.2 and adjustable pole setting I2.1 one-to-one setting, adjustable pole setting II 2.2's pole setting fixing bolt 10 and adjustable pole setting I2.1's microscler notch 9 fastening connection, adjustable tripod 1 supports hoop prestressing force pipeline 6.

As shown in fig. 2, the adjustable tripod 1 comprises an adjustable vertical tripod rod 5, an adjustable tripod diagonal rod 7 and an adjustable tripod cross rod 12, the adjustable tripod cross rod 12 is erected between the frame I shaped like a Chinese character 'hui', an adjustable tripod clamping groove 8 is formed in the adjustable tripod cross rod 12, the lower end of the adjustable vertical tripod rod 5 is fixed on the adjustable tripod clamping groove 8 through a bolt, and the upper end of the adjustable vertical tripod rod 5 is fixed with the circumferential prestress pipeline 6 through a pipeline U-shaped clamp 11. The tripod can move transversely conveniently and can be adjusted according to the position of the annular prestress curve.

The upper end of the tripod adjustable upright stanchion 5 is hinged with one end of an adjustable tripod diagonal rod 7, and the other end of the adjustable tripod diagonal rod 7 is fixedly connected with an adjustable tripod clamping groove 8 through a bolt.

As shown in fig. 6, which is a schematic diagram of connection between a processing jig and a unit jig, the unit jig is connected with the processing jig by using upright fixing bolts during processing, adjustable tripod uprights 5 with preset curve curves extend from the unit jig, a prestressed pipe threaded with steel strands is placed on a small cross bar 16 of the unit jig and abuts against the adjustable tripod uprights 5 extending from the lower side of the unit jig, the pipe is fixed on the unit jig by using a pipe U-shaped clamp 11 after being bent according to the adjusted curve, the upright fixing bolts 10 can be removed after the completion of the process, a unit jig is completed, a plurality of unit jigs are sequentially completed according to the above steps, and after the pipe is transported to the site, each unit jig can be connected up and down by using bolt notches of the adjustable uprights II, and the height of the unit jig is adjusted, as shown in fig. 7.

The utility model discloses a but adjustable position's device, with the accurate location of annular prestressing force pipeline, and process into the assembled component, avoided the annular prestressing force steel beam because crooked radius is little, the angle is big, the bundle degree of difficulty of wearing that causes is big, the curve bellows location is difficult, shortcomings such as personnel's operation inconvenience, not only make the quality than more secure at the on-the-spot production, more can obtain effectual control, again great reduction on-the-spot prestressing force pipeline installation's time limit for a project, accord with the development trend of national assembled construction, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability.

The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Claims

1. The utility model provides a bed-jig that is used for hoop prestressing force assembled installation which characterized in that: comprises a processing jig frame and a unit jig frame,

the processing jig frame comprises a 'returning' frame I which is formed by overlapping a processing jig frame cross rod (4) and a processing jig frame longitudinal rod (3), a plurality of adjustable triangular supports (1) are arranged along a 'returning' ring of the 'returning' frame I, a plurality of adjustable vertical rods I (2.1) for supporting are vertically fixed on the 'returning' frame I, and the upper ends of the adjustable vertical rods I (2.1) are provided with long notches (9);

the unit jig comprises a unit jig cross rod (14) and a unit jig longitudinal rod (13) which are erected into a 'return' type frame II, a unit jig small cross rod (16) is arranged on the 'return' type frame II along a 'return' ring, a circumferential prestress pipeline (6) is erected on the unit jig small cross rod (16), a plurality of adjustable vertical rods II (2.2) used for supporting are vertically fixed on the 'return' type frame II, a round hole notch is formed in the lower end of each adjustable vertical rod II (2.2), and a vertical rod fixing bolt (10) is inserted in the round hole notch;

the adjustable vertical rods II (2.2) and the adjustable vertical rods I (2.1) are arranged in a one-to-one correspondence mode, the vertical rod fixing bolts (10) of the adjustable vertical rods II (2.2) are fixedly connected with the long notch (9) of the adjustable vertical rod I (2.1), and the adjustable triangular frame (1) supports the annular prestressed pipeline (6).

2. The jig frame for hoop-prestressed rigging installation according to claim 1, wherein: the adjustable tripod (1) comprises a tripod adjustable vertical rod (5), an adjustable tripod inclined rod (7) and an adjustable tripod cross rod (12), the adjustable tripod cross rod (12) is erected between a frame I in a shape like a Chinese character 'hui', an adjustable tripod clamping groove (8) is formed in the adjustable tripod cross rod (12), the lower end of the tripod adjustable vertical rod (5) is fixed on the adjustable tripod clamping groove (8) through a bolt, and the upper end of the tripod adjustable vertical rod (5) is fixed with the annular prestress pipeline (6) through a pipeline U-shaped clamp (11).

3. The jig frame for hoop-prestressed rigging installation according to claim 2, wherein: the upper end of the adjustable vertical rod (5) of the tripod is hinged with one end of an adjustable tripod diagonal rod (7), and the other end of the adjustable tripod diagonal rod (7) is fixedly connected with an adjustable tripod clamping groove (8) through a bolt.