CN220272048U - Counter-force wall loading hole installation accuracy control device - Google Patents

Abstract

A reaction wall loading hole installation accuracy control device belongs to the technical field of building structure experimental models and includes a support frame, loading hole embedded parts, an adjustment plate, a riding bolt, a first angle steel, a second angle steel, a first waist-shaped hole, The second waist-shaped hole, the first nut, the second nut, the third nut and the supporting plate. While ensuring the stability of the loading hole embedded parts, this new type realizes fine adjustment of the position of the loading hole embedded parts. Compared with the traditional error adjustment of the loading hole embedded parts, the construction is less difficult, reduces a large number of error adjustment operations, and saves construction time. cost, improve work efficiency and ensure construction quality.

Description

A precision control device for installation of loading holes in reaction walls

Technical field

The invention belongs to the technical field of experimental models of building structures, and specifically relates to a device for controlling the installation accuracy of loading holes in reaction walls.

Background technique

With the continuous development of cities in our country, the development process of modernization has been promoted. Many advanced construction technologies have emerged, changing the pattern of traditional building construction. The progress of science and technology has also promoted the continuous development of various new structures, new materials and new construction techniques. Appear. As the main body of building safety and stability, experiments are the main source of ensuring the structural quality of buildings. The errors in experimental data caused by experimental errors directly affect the safety of people's lives and property; the advancement of experimental model technology, the accuracy of Improvement has a positive role in promoting the development of the entire construction industry in the country. As the country, society and universities have increasingly higher requirements for the accuracy of structural experimental data and the accuracy of experimental models, various new construction methods have gradually entered the laboratory, with less rework, high efficiency, convenient operation and obvious benefits. New technical methods will provide a broader stage for the entire experiment. As the main body of the reaction wall throughout the entire seismic performance test, its overall stiffness and local accuracy are important components that affect the accuracy of the experimental results; the error of the embedded parts of the reaction wall loading tube is the most important factor in the accuracy control of the reaction wall. An important link is that in the installation and construction of domestic reaction wall loading holes, whether it is a single installation or an overall assembly, error adjustment is difficult and inefficient, and it is difficult to achieve fine control of accuracy.

Specifically: According to the existing data and practical applications, there are more or less technical problems in the traditional fixation method and error adjustment method of the embedded parts of the reaction wall loading tube. Since there are hundreds of components on the reaction wall and reaction pedestal, Thousands of pre-embedded loading holes, coupled with the very high requirements for the surface flatness and vertical accuracy of the intersection of the reaction wall and reaction pedestal, make the construction of pre-embedded loading holes difficult; the traditional construction method is to use edge The method of measuring side fixation is to use the already measured and fixed loading hole to measure and fix the position of the next loading hole. This construction method has the advantages of high accuracy and fast construction speed when the number of loading holes is not large. However, when the reaction wall is large, since each loading hole is positioned according to the position of the previous loading hole, errors will inevitably occur. Under this construction method, the error caused by the previous loading hole It will be accumulated to the next loading hole, resulting in continuous accumulated errors, construction accuracy will become worse and worse, and there are no effective error adjustment measures.

Utility model content

In order to overcome the shortcomings of the existing technology, the present invention discloses a reaction wall loading hole installation accuracy control device. The purpose is to provide a new fixing method that can not only ensure the stability requirements, but also meet the pre-buried requirements. The position of the parts can be fine-tuned to control the cumulative error to reduce the error between loading holes.

In order to achieve the above purpose, the new technical solution is:

A reaction wall loading hole installation accuracy control device, including a support frame, loading hole embedded parts, adjustment plates, and riding bolts. The support frame includes vertical rods arranged longitudinally and divided into two rows of front and rear. The two rows of vertical rods One by one and arranged in a matrix, the same row of vertical bars are fixedly connected with horizontal bars in the horizontal direction. The front and rear horizontal bars are opposite one by one and have the same height. The outer end surfaces of the two opposite horizontal bars with the same height are evenly distributed with A plurality of adjustment plates, two sets of adjustment plates at the front and rear facing each other one by one. The top of the adjustment plate is provided with an arc groove. The left and right parts of the adjustment plate are symmetrically provided with first waist-shaped holes arranged longitudinally. The adjustment plate passes through The self-tapping screws passing through the first waist-shaped hole are fixedly connected to the outer wall of the crossbar. A plurality of first angle steels are also fixedly connected between the front and rear opposite crossbars. The bottoms of the plurality of first angle steels are jointly fixedly connected to a second angle steel. , the second angle steel is arranged in a direction parallel to the cross bar, and there are several groups of mounting holes distributed on the second angle steel, and each group of mounting holes includes 2 second waist-shaped holes arranged side by side and arranged in the transverse direction. , both ends of the loading hole embedded part are set up on the arc-shaped grooves of two opposite adjustment plates, and the loading plate embedded part is fixedly connected to the second angle steel through a riding bolt passing through the second waist-shaped hole.

Preferably, the horizontal bar and the vertical bar are welded to each other at the contact surface, and the contact parts of the horizontal bar and the vertical bar form a cross structure, and the two ends of the first angle steel are connected to two opposite crosses at the front and rear respectively. The upper part of the cross structure is welded at right angles on the same side. The bottom ends of several first angle steels are coplanar. The top surface of the second angle steel is welded to the bottom surface of the first angle steel. There are 2 sets of second angle steels, and the 2 sets of second angle steels are welded at right angles. The two angles are symmetrically distributed about the transverse middle plane of the first angle, and the top surfaces of the two sets of second angles are coplanar.

Preferably, the size of the first waist-shaped hole and the second waist-shaped hole respectively meet the requirements of fine-tuning the loading hole embedded part by plus or minus 3 mm in the longitudinal direction and plus or minus 3 mm in the transverse direction with the hole center as the starting position.

Preferably, the loading hole embedded part includes a pipe body, the two ends of the pipe body are folded outward to form a connecting plate, the connecting plate is provided with a connecting hole, and the inner hole of the pipe body A loading hole is formed, the shape and size of the pipe body are adapted to the shape and size of the arc-shaped groove, and the lower surfaces of the two ends of the pipe body are closely fitted to the corresponding inner walls of the arc-shaped groove.

Preferably, the riding bolt is equipped with a first nut, a second nut, a third nut and a supporting plate, and the first nut is tightened on the bolt body with the free end of the riding bolt located below the second waist-shaped hole, The second nut is tightened on the bolt body with the free end of the riding bolt located above the second waist-shaped hole, and the first nut and the second nut define the relative position of the free end of the riding bolt and the second waist-shaped hole, The two ends of the supporting plate are respectively provided with through holes, and the two free ends of the riding bolt pass through the two through holes. The upper surface of the supporting plate is pressed against the lower end of the pipe body, and the third third The nut is tightened on the bolt body where the lower port of the through hole is located.

Preferably, the front or rear crossbars of the same height are composed of several crossbar segments, and the opposite ends of adjacent crossbar segments are provided with first connecting plates; the same vertical bar is composed of several vertical bar segments from beginning to end. The two connecting plates are connected, and the opposite ends of adjacent vertical rod segments are provided with second connecting plates. The first connecting plate is arranged in a direction perpendicular to the axis of the horizontal rod, and the second connecting plate is arranged in a direction perpendicular to the axis of the vertical rod. , a first rubber pad is provided between the two opposite first connection plates, and a second rubber pad is provided between the two opposite second connection plates. The first rubber pad and the second rubber pad are based on There are various models with different thicknesses, and the opposite first connecting plates and the opposite second connecting plates are respectively connected by bolts.

Preferably, the bottom end of the vertical rod is provided with a third connecting plate, the third connecting plate is arranged horizontally, and the bottom end of the third connecting plate is provided with a third rubber pad.

The beneficial effects of this new type of reaction wall loading hole installation accuracy control device are:

This new type realizes fine adjustment of the position of the loading hole embedded parts while ensuring the stability of the loading hole embedded parts. Compared with the traditional error adjustment of the loading hole embedded parts, the construction is less difficult, reduces a large number of error adjustment operations, and saves construction time. cost, improve work efficiency and ensure construction quality.

Description of drawings

Figure 1. Front view of the structure of the new model;

Figure 2. Schematic side view of the new structure;

Figure 3 is a partial cross-sectional view of the side structure of the new model;

Figure 4. Schematic top view of the structure of the new model;

1. Vertical rod; 1-1, first vertical rod; 1-2, second vertical rod; 2, second connecting plate; 3, second rubber pad; 4, horizontal rod; 5, first angle steel; 6. Adjustment plate; 7. Arc groove; 8. First waist-shaped hole; 9. Self-tapping screws; 10. Loading hole embedded parts; 10-1. Connection plate; 10-2. Pipe body; 11. Connection hole; 12. Second angle steel; 13. Riding bolt; 14. First nut; 15. Support plate; 16. Third nut; 17. Second nut; 18. Second waist hole.

Detailed ways

The following descriptions are only preferred embodiments of the present invention and are not used to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in within the protection scope of this new model.

Example 1

A reaction wall loading hole installation accuracy control device, as shown in Figure 1-4, includes a support frame, a loading hole embedded part 10, an adjustment plate 6, and a riding bolt 13. The support frame includes a support frame that is arranged longitudinally and divided into There are two rows of vertical bars 1 at the front and rear. The two rows of vertical bars 1 are opposite one by one and arranged in a matrix. The vertical bars 1 in the same row are fixedly connected with horizontal bars 4 along the horizontal direction. The front and rear horizontal bars 4 are opposite one by one and have the same height. A number of adjustment plates 6 are evenly distributed on the outer end surfaces of the two opposite cross bars 4 with the same height. The two front and rear sets of adjustment plates 6 face each other one by one. The top of the adjustment plates 6 is provided with an arc-shaped groove 7. The adjustment plates 6 The left and right parts are symmetrically provided with first waist-shaped holes 8 arranged longitudinally. The adjustment plate 6 is fixedly connected to the outer wall of the cross bar 4 through self-tapping screws 9 passing through the first waist-shaped holes 8. A plurality of first angle steels 5 are also fixedly connected between the rods 4. The bottoms of the plurality of first angle steels 5 are jointly fixedly connected with second angle steels 12. The second angle steels 12 are arranged in a direction parallel to the crossbar. There are several groups of mounting holes distributed on the second angle steel 12. Each group of mounting holes includes 2 second waist-shaped holes 18 arranged side by side and arranged laterally. The two ends of the loading hole embedded part 10 are set up on 2 On the arc-shaped groove 7 of the two opposite adjustment plates 6, the loading plate embedded part 10 is fixedly connected to the second angle steel 12 through the riding bolt 13 passing through the second waist-shaped hole 18.

As shown in Figures 1-4, the horizontal bar 4 and the vertical bar 1 are welded to each other at the contact surface. The contact parts of the horizontal bar 4 and the vertical bar 1 form a cross structure. The first angle steel 5 is The two ends are welded to the right angles on the same side of the upper parts of the two opposite cross structures at the front and rear respectively. The bottom ends of a plurality of first angle steels 5 are coplanar. The top surface of the second angle steel 12 is welded to the bottom surface of the first angle steel, so The above-mentioned second angle steels 12 have two groups, the two groups of second angle steels 12 are symmetrically distributed about the transverse middle plane of the first angle steel 5, and the top surfaces of the two groups of second angle steels 12 are coplanar.

As shown in Figures 1-4, the sizes of the first waist-shaped hole 8 and the second waist-shaped hole 18 respectively meet the requirements of the loading hole embedded part 10 to be fine-tuned by plus or minus 3mm in the longitudinal direction and 3 mm in the transverse direction with the hole center as the starting position. Fine-tune the requirement of plus or minus 3mm.

As shown in Figure 1-4, the loading hole embedded part 10 includes a pipe body 10-2, and the two ends of the pipe body 10-2 are folded outward to form a connecting plate 10-1. The plate is provided with a connecting hole 11, and the inner hole of the tube body 10-2 constitutes a loading hole. The shape and size of the tube body 10-2 is adapted to the shape and size of the arc-shaped groove 7. The tube body 10 The lower surfaces at both ends of -2 are in close contact with the inner walls of the corresponding arc-shaped grooves 7 respectively.

In this embodiment, the support frame, the loading hole embedded part 10, the adjustment plate 6, and the riding bolt 13 are all embedded in the reaction wall, and the loading hole is opened on the surface of the reaction wall. Before pouring, the new type is erected. When the position of some loading hole embedded parts is found to be deviated during the erection process or after the erection is completed, quick adjustment can be made without dismantling the entire support frame. The specific adjustment method is: loosen the self-tapping screws and riding bolts. When longitudinal adjustment is required, move the two adjustment plates longitudinally to make the embedded parts of the loading hole reach the qualified height. When adjusting horizontally, move the adjustment plates left and right to make the loading The hole-embedded parts move left and right to the correct position. During comprehensive adjustment, the horizontal and vertical movements can be combined. After they are in place, tighten the self-tapping screws to firmly connect the adjustment plate to the crossbar, and then connect it to the second angle steel through riding bolts. This further realizes the fixation of the embedded parts of the loading hole, thereby achieving precise control of the position of the loading hole.

Example 2

Based on Embodiment 1, this embodiment is improved as follows:

As shown in Figures 1-4, the riding bolt 13 is configured with a first nut 14, a second nut 17, a third nut 16 and a supporting plate 15. The first nut 14 is tightened on the free end of the riding bolt. On the bolt body below the second waist-shaped hole 18, the second nut 17 is tightened on the bolt body with the free end of the riding bolt located above the second waist-shaped hole 18. The first nut 14 and the second nut 17 defines the relative position of the free end of the riding bolt and the second waist-shaped hole 18. The two ends of the supporting plate 15 are respectively provided with through holes, and the two free ends of the riding bolt 13 pass through the two through holes. The upper surface of the supporting plate 15 is pressed against the lower end of the pipe body 10-2, and the third nut 16 is tightened on the bolt body at the position of the lower port of the through hole.

In this embodiment, when the loading hole embedded part needs to be adjusted longitudinally, the tube body of the loading hole embedded part is separated from the top of the second angle steel. In order to avoid the self-tapping screw at the first waist-shaped hole bearing most of the weight and causing the loading hole The embedded parts are displaced, so the first nut 14, the second nut 17, the third nut 16 and the supporting plate 15 are provided. After the first nut and the second nut securely connect the riding bolt and the second angle steel, the supporting plate is used. and the third nut to securely connect the riding bolt to the pipe body. At this time, the weight of the embedded parts of the loading hole mainly falls on the second angle steel. The self-tapping screws will not bear most of the weight, so the adjustment plate and self-tapping will not occur. relative sliding between screws.

In order to realize the two-way adjustment function, in the initial state, the bottom end of the pipe body is separated from the second angle steel. When the installation position of the pipe body is too high, the pipe body is adjusted downward, and conversely, the pipe body is adjusted upward.

Example 3

Based on Embodiment 2, this embodiment is improved as follows:

As shown in Figure 1-4, the front or rear crossbar 4 of the same height is composed of several crossbar segments, and the opposite ends of adjacent crossbar segments are provided with first connecting plates (not marked in the figure) ); The same vertical pole is composed of several vertical pole segments connected end to end. The opposite ends of adjacent vertical pole segments are provided with second connecting plates 2. The first connecting plates are arranged in a direction perpendicular to the axis of the horizontal rod, The second connecting plate is arranged in a direction perpendicular to the axis of the vertical rod. A first rubber pad (not labeled in the figure) is provided between the two opposite first connecting plates. A second rubber pad 3 is provided. The first rubber pad and the second rubber pad 3 are provided in various models according to the difference in thickness. There are passages between the opposite first connecting plates and between the opposite second connecting plates 2 respectively. Bolted connections.

As shown in Figure 1-4, the bottom end of the vertical rod 1 is provided with a third connecting plate (not shown in the figure). The third connecting plate is arranged horizontally. The bottom end of the third connecting plate Equipped with a third rubber pad.

The installation process of this new type is as follows:

1) Preliminary assembly: Under the condition that the bearing capacity of the tower crane is met, the new model is assembled into larger modules through segmented splicing of horizontal bars and segmented vertical bars.

2) Overall assembly: With the help of total stations, detection tools, positioning tools, etc., adjustments are made to ensure the installation accuracy of each module.

3) Support frame reinforcement: Properly connect the support frame to the surrounding scaffolding to increase stiffness.

4) Local fine-tuning: If the position of the embedded parts of the loading hole is found to be offset during inspection, the self-tapping screws and riding bolts can be loosened to fine-tune the position of the embedded parts of the loading hole.

5) Steel bar binding: The steel bar binding work needs to be carried out after the installation and positioning of the loading hole embedded parts, and the installation accuracy of the support frame and loading hole embedded parts must not be damaged during the construction process.

6) Formwork installation and pouring.

During the construction process, if position errors are found between modules, fine adjustments can be made by replacing the first rubber pad and the second rubber pad. When the support frame tilts, the third rubber pad can be adjusted. For example, if the support frame tilts forward, the bottom rear end of the third rubber pad will be thinned, and conversely, the bottom front end of the third rubber pad will be thinned.

Claims (7)

1. The utility model provides a counter-force wall loading hole installation accuracy control device which characterized in that: including support frame, loading hole built-in fitting, regulating plate, saddle bolt, the support frame include along vertical setting and divide into the montant of front and back two rows, two rows of montants are relative and become the matrix and arrange, along horizontal direction fixedly connected with horizontal pole on the same row of montant, horizontal pole one-to-one and highly the same around, the outer terminal surface of the same 2 relative horizontal poles evenly distributed respectively has a plurality of regulating plates, two sets of regulating plates one-to-one around, the top of regulating plate be equipped with the arc wall, regulating plate's left and right sides symmetry be equipped with along the first waist type hole of vertical setting, the regulating plate pass through the self tapping screw of first waist type hole and the outer wall fixed connection of horizontal pole, still fixedly connected with a plurality of first angle steel between the relative horizontal pole around, the bottom of a plurality of first angle steel is fixedly connected with second angle steel jointly, the second angle steel set up along the direction that is on being on a parallel with the horizontal pole, the second angle steel on the distribution have a plurality of sets of mounting holes, every set of mounting hole all include 2 and arrange side by side and along the second waist type hole that transversely sets up, the loading hole of pre-mounting plate on the relative mounting plate and the two ends of the mounting plate pass through the second bridge type hole of the mounting hole and the corresponding mounting hole on the mounting plate.

2. The counter-force wall loading hole installation accuracy control device according to claim 1, wherein: the cross bar and the montant weld each other at the contact surface, the position of cross bar and montant contact form the crisscross structure, the both ends of first angle steel respectively with the homonymy right angle department welding on 2 relative crisscross structure upper portions around, the bottom coplane of a plurality of first angle steel, the top surface of second angle steel and the bottom surface welding of first angle steel, the second angle steel have 2 groups, 2 groups second angle steel are about the horizontal bisection plane symmetric distribution of first angle steel, the top surface coplane of 2 groups second angle steel.

3. The counter-force wall loading hole installation accuracy control device according to claim 2, wherein: the sizes of the first waist-shaped hole and the second waist-shaped hole respectively meet the requirements of the loading hole embedded part on longitudinal fine adjustment of plus or minus 3mm and transverse fine adjustment of plus or minus 3mm by taking the hole center as the starting position.

4. A counter-force wall load port mounting accuracy control device as claimed in claim 3, wherein: the loading hole embedded part comprises a pipe body, two ends of the pipe body are outwards turned to form a connecting plate, the connecting plate is provided with a connecting hole, an inner hole of the pipe body forms a loading hole, the shape and the size of the pipe body are matched with those of the arc-shaped groove, and the lower surfaces of the two ends of the pipe body are respectively tightly attached to the inner walls of the corresponding arc-shaped groove.

5. The counter-force wall loading hole installation accuracy control device according to claim 4, wherein: the saddle bolt is provided with a first nut, a second nut, a third nut and a supporting plate, wherein the first nut is screwed on a bolt body of which the free end is positioned below the second waist-shaped hole, the second nut is screwed on a bolt body of which the free end is positioned above the second waist-shaped hole, the first nut and the second nut limit the relative positions of the free end of the saddle bolt and the second waist-shaped hole, through holes are respectively formed in two ends of the supporting plate, 2 free ends of the saddle bolt penetrate through the 2 through holes, the upper surface of the supporting plate is tightly pressed with the lower end of the pipe body, and the third nut is screwed on the bolt body of the position of the lower port of the through hole.

6. The counter-force wall loading hole installation accuracy control device according to claim 5, wherein: the cross bars on the front side or the rear side of the same height are formed by a plurality of cross bar sections, and the opposite ends of the adjacent cross bar sections are respectively provided with a first connecting plate; the same montant comprises a plurality of montant segmentation end to end, and the opposite end of adjacent montant segmentation all is equipped with the second connecting plate, first connecting plate set up along the direction of perpendicular to horizontal pole axis, the second connecting plate sets up along the direction of perpendicular to montant axis, is equipped with first rubber pad between 2 relative first connecting plates, is equipped with the second rubber pad between 2 relative second connecting plates, first rubber pad and second rubber pad be equipped with multiple model according to thickness difference, respectively through bolt fixed connection between the relative first connecting plate, between the relative second connecting plate.

7. The counter-force wall loading hole installation accuracy control device according to claim 6, wherein: the bottom of montant be equipped with the third connecting plate, the third connecting plate along the level setting, the bottom of third connecting plate is equipped with the third rubber pad.