CN206428593U - Prefabricated case beam beam bottom wedge assembled adjuster - Google Patents

Abstract

The utility model discloses an assembled adjuster of wedge-shaped blocks at the bottom of a prefabricated box girder beam. It consists of a top plate, a spherical adjusting screw and a sleeve, a fixed baffle and a bottom plate base. Four ball-head adjusting screws are used to pass through the lower top plate. The upper fixed baffle is welded to the lower top plate, the ball head adjustment screw is rotated and adjusted with the sleeve thread, the sleeve is welded and fixed to the bottom plate base, and the lower fixed baffle is connected to the bottom plate base. The top plate of the regulator can be separated from the base of the bottom plate through a screw, which is convenient for assembly and disassembly, and has a high degree of standardization. Through manual screw adjustment, it can meet the different directions of roof inclination, meet the requirements for setting wedge-shaped blocks at the bottom of prefabricated box girder girders, and solve the problem that the construction quality is difficult to guarantee. The adjuster can improve the accuracy of the wedge-shaped blocks set at the bottom of the beam for adapting to the vertical and horizontal slopes of the prefabricated box girder.

Description

Prefabricated Box Girder Bottom Wedge Block Assembled Regulator

technical field

The utility model relates to the construction technology of prefabricated box girders in bridge engineering, in particular to an assembled mechanical adjuster capable of accurately adjusting the height of wedge-shaped blocks at the bottom of prefabricated box girder girders.

Background technique

Prefabricated box girder is a type of girder often used in bridge engineering, and the general span is 20≤L≤40 meters. The prefabricated box girder girder body is beautiful, and the prefabrication is more convenient. Due to the relationship between the vertical and horizontal slopes of the subgrade, when the slope is greater than 2%, the prefabricated box girder girder bottom needs to be leveled with wedge blocks to meet the support level. Affected by the vertical and horizontal slope and elevation of the route, the wedge-shaped blocks are often adjusted to different heights, and have higher requirements on the movable characteristics of the pedestal. In the past, wedge-shaped blocks could be processed by burying sand on the beam-making platform or adding wedge-shaped steel plates to the bottom of the beam. The precision is difficult to control and the construction process is cumbersome. If it is not handled properly, the support of the support and the pre-embedded steel plate at the bottom of the beam will be uneven and empty. Under the long-term action of vehicle dynamic load, the support is easily damaged or even falls off.

Contents of the invention

The purpose of this utility model is to improve the construction quality of the wedge-shaped block at the bottom of the prefabricated box girder beam. It proposes an adjustment device that uses a spherical support to rotate and a screw to adjust the inclination up and down to meet the construction requirements of the wedge-shaped block. Repeated assembly and utilization to improve efficiency.

The technical scheme that the utility model takes:

Utilizing the principle that the spherical member can rotate in multiple directions, it can be adjusted vertically through the screw to meet the setting requirements of wedge blocks at different heights and slopes at the bottom of the beam.

This assembled regulator is composed of a top plate, a ball head adjusting screw and a sleeve, a fixed baffle and a bottom plate base. Through the lower roof, the top spherical member is stuck in the recess of the lower roof, the upper roof and the lower roof are fixed by bolts, the symmetrical upper fixed baffle is welded to the lower roof, the ball head adjustment screw and the sleeve thread are rotated to adjust, The sleeve is welded and fixed to the bottom plate base, the lower fixed baffle is welded to the bottom plate base, and the upper fixed baffle fixed to the top plate and the lower fixed baffle fixed to the bottom plate are staggered and fixed with bolts.

The ball head adjustment screw is rotated to raise or lower the upper top plate, lower top plate, bolts, upper fixed baffle part, through the spherical recesses of the upper top plate and lower top plate, a multi-directional tilting effect is obtained, and the bolts adjust and fix the upper top plate, lower top plate, Bolts, upper fixed baffle part.

The upper top plate is used as the bottom template of the prefabricated box girder wedge, and the ball head adjusting screw needs to be adjusted up and down to install or remove the template.

Accessories raw materials: 20mm steel plate, 18mm diameter screw, M10 bolt, 50mm diameter 18mm inner diameter screw sleeve.

The utility model has the advantages that the top plate of the regulator is used as the bottom template of the wedge-shaped block at the bottom of the prefabricated box girder girder, and the multi-directional inclination of the top plate can be realized through the adjustment of the screw rod. The installation and removal are convenient and can be reused. The top plate consists of two steel plates with spherical recesses, which serve as spherical bearings for the combination of spherical screw rotation support and reverse pull action. The adjuster is provided with a fixed baffle in the transverse direction of the prefabricated beam, and is adjusted by bolts to fix the top plate. The various components of the regulator have common raw materials and are easy to process. The top plate and the base of the bottom plate can be separated by screws, which is convenient for assembly and disassembly, and has a high degree of standardization. By manually turning the screw adjustment, it can meet the inclination of the roof in different directions, meet the setting requirements of the wedge-shaped blocks at the bottom of the prefabricated box girder girder, and solve the problem that the construction quality of the wedge-shaped blocks at the bottom of the prefabricated box girder girder is difficult to guarantee.

The adjuster can improve the accuracy of the wedge-shaped blocks set at the bottom of the beam for adapting to the vertical and horizontal slopes of the prefabricated box girder. As a part of the prefabricated beam pedestal, the adjuster is easy to assemble and disassemble, can be reused, speeds up the construction speed, and improves the construction quality of the prefabricated beam.

Description of drawings

Fig. 1 is a construction schematic diagram of the utility model, Fig. 2 is a front schematic diagram of the utility model structure, and Fig. 3 is a side schematic diagram of the utility model structure.

In the figure: 1-upper top plate, 2-lower top plate, 3-bolt, 4-ball adjustment screw, 5-sleeve, 6-bottom plate base, 7-upper fixed baffle, 8-lower fixed baffle, 9 -bolt.

detailed description

The utility model prefabricated box girder girder bottom wedge assembly type adjuster is composed of a top plate, a ball head adjusting screw and a sleeve, a fixed baffle and a bottom plate base, and the top plate is composed of two steel plates with four spherical recesses. , 4 ball head adjusting screws 4 pass through the lower top plate 2, the top spherical member is stuck in the recess of the lower top plate 2, the upper top plate 1 and the lower top plate 2 are fixed by bolts 3, the upper fixed baffle 7 and the lower top plate 2 are symmetrical on both sides Welding connection, the ball head adjustment screw 4 and the sleeve 5 are rotated and adjusted, the sleeve 5 is welded and fixed to the bottom plate base 6, the lower fixed baffle 8 is welded to the bottom plate base 6, and fixed to the upper fixed baffle 7 of the top plate It is staggeredly adjusted and fixed with the lower fixed baffle plate 8 fixed on the base plate with bolts 9 .

The ball head adjustment screw 4 rotates to raise or lower the upper top plate 1, the lower top plate 2, the bolt 3, and the upper fixed baffle 7, and obtains a multi-directional tilting effect through the upper top plate 1, the lower top plate 2, and the spherical recesses of the top plate. 9 Adjust and fix the upper top plate 1, the lower top plate 2, the bolt 3, and the upper fixed baffle 7 parts. The upper top plate 1 is used as the bottom template of the prefabricated box girder wedge, and the ball head adjusting screw 4 needs to be adjusted up and down to install or remove the template.

The specific construction method steps are as follows:

(1) Regulator installation: The regulator is divided into three parts: the top plate, the adjusting screw and sleeve, and the base of the bottom plate. The top plate part is composed of 2 steel plates and a welded fixed baffle, which are connected by bolts, and 4 spherical recesses are set. Before the top plate is connected, the ball head adjusting screw is inserted, and the top plate is fastened with bolts to complete the connection between the top plate and the adjusting screw. The bottom plate base is composed of sleeves, fixed baffles, etc., put the top plate and adjusting screw on it, and manually rotate the screw to complete the installation of the regulator.

(2) Regulator adjustment: Rotate 4 ball head adjustment screws at the same time to complete the adjustment of different heights and different slopes, mainly to adjust the state of the top plate.

(3) Use and dismantling of the regulator: the wedge block and the prefabricated box girder are poured at the same time, and the top plate of the regulator is used as the bottom formwork of the wedge block. After the pouring is completed, the screw is lowered to complete the form removal.

The prefabricated box girder girder bottom wedge assembly adjuster has common raw materials, simple geometric shape, and easy processing; the device is light, can be moved flexibly, and the screw can adjust multi-directional tilt; during the prefabricated box girder construction, the prefabrication accuracy of the wedge block is improved. , Protect the durability of the bridge bearing, reduce the amount of labor, improve work efficiency, and speed up the construction progress.

Claims (1)

1. A prefabricated box girder bottom wedge assembly type adjuster is characterized in that: it is composed of a top plate, a ball head adjusting screw and a sleeve, a fixed baffle plate and a bottom plate base; the top plate is provided with four spherical concaves The steel plate of the seat is composed of four ball head adjusting screws (4) passing through the lower top plate (2), and the top spherical member is stuck in the recess of the lower top plate (2), and the upper top plate (1) and the lower top plate (2) pass through the bolts ( 3) Fixed, the symmetrical upper fixed baffle (7) and the lower top plate (2) are welded and connected, the ball head adjustment screw (4) and the sleeve (5) are rotated and adjusted, the sleeve (5) is connected to the base of the bottom plate (6) Welding and fixing, the lower fixed baffle (8) is welded to the bottom plate base (6), and the upper fixed baffle (7) fixed on the top plate and the lower fixed baffle (8) fixed on the bottom plate are connected by bolts (9 ) stagger adjustment fixed.