CN210049614U - Auxiliary device for prefabricated laminated beam plate installation - Google Patents

Abstract

The utility model relates to an auxiliary device for the installation of an assembled composite beam and slab, which is characterized in that: the auxiliary device for the installation of an assembled composite beam plate comprises two prefabricated parts of the composite beam arranged in parallel, which are respectively arranged in the prefabricated parts of the two composite beams. The level adjustment device of the laminated board on the opposite side of the upper part and the laminated board supported on the level adjustment device of the laminated board. The assembly-type superimposed beam-slab installation auxiliary device can reduce the use of open stirrups and is beneficial to speed up the construction.

Description

Auxiliary device for prefabricated laminated beam plate installation

Technical field:

The utility model relates to a construction structure of an assembled laminated beam and slab, in particular to an auxiliary device for the installation of an assembled laminated girder slab.

Background technique:

Prefabricated concrete buildings refer to reinforced concrete structures assembled with precast concrete components in part or all of the main structure. In order to ensure that the overall mechanical performance of the prefabricated reinforced concrete structure is equivalent to that of the cast-in-place structure, it is necessary to take corresponding reliable structural measures and construction methods to ensure that the prefabricated parts, cast-in-place parts, and nodes in the prefabricated structure can work together. Its mechanical performance is equal to or higher than that of the monolithic structure.

At present, the vertical components (reinforced concrete walls, columns) are cast-in-place, and the horizontal components (beams, slabs) are constructed using laminated beams and laminated slabs. It is also one of the commonly used construction methods in my country. Usually, the open hoop is used for the superimposed beam. After the superimposed beam with the open hoop is hoisted in place, the superimposed plate is hoisted; then the longitudinal reinforcement bars at the top of the superimposed beam are installed, and the open hoop part of the superimposed beam is welded and closed with short steel bars; On the one hand, this method increases the welding workload, and on the other hand, the damage of the weld is brittle, which is not conducive to the safety of the structure. In addition, the lap joint of the laminated beam and the laminated plate needs to be sealed to prevent slurry leakage; the current common practice is to embed bolt holes at the bottom of the prefabricated beam and the prefabricated plate respectively to fix the corner formwork. The method requires high precision for the embedded bolt holes, and at the same time the construction is troublesome.

That is, in the traditional prefabricated composite beam-slab construction, the reinforcing bars protruding from the composite slab will cross and collide with the longitudinal reinforcing bars on the top of the composite beam during the hoisting process of the composite slab. After the hoisting of the laminated board is completed, the reinforcement bars at the top of the superimposed beams are bound. However, in order to place the reinforcement bars at the top of the superimposed beams in place, the stirrups of the superimposed beams need to be in the form of open hoops. The open hoop is welded into a closed hoop with short steel bars. On the one hand, this method increases the welding workload, and on the other hand, the welding failure has the characteristics of brittle failure, which is not conducive to the seismic performance of the structure.

In the traditional superimposed composite beam-slab construction, prefabricated beams and prefabricated slabs are used at the lap joints of prefabricated beams and prefabricated slabs, and then the pre-embedded bolt holes are used to fix the internal corner formwork (such as aluminum alloy angle formwork). This method increases the difficulty of prefabricated components and requires accurate positioning of the embedded bolt holes.

Invention content:

In view of the deficiencies of the prior art, the technical problem to be solved by the present utility model is to provide an auxiliary device for the installation of an assembled laminated beam plate, which can reduce the use of open stirrups and is conducive to speeding up the construction speed.

The utility model is characterized in that it comprises two prefabricated parts of prefabricated laminated beams arranged in parallel; Laminate on the Laminate Elevation Adjuster.

Further, the above-mentioned laminated plate elevation adjustment device includes an L-shaped steel structure connecting piece composed of horizontal and vertical plates, and a vertical adjusting screw that is vertically threaded on the horizontal plate of the L-shaped steel structure connecting piece, and the upper part of the vertical adjusting screw is A flat plate is fixed, and the bottom surface of the flat plate is fixedly connected with a horizontal threaded sleeve and a horizontal screw thread connected to the horizontal threaded sleeve. The pre-embedded holes on the opposite surfaces of the parts are fixedly connected, and the laminated board is supported on the flat plate.

Further, an angle steel formwork is arranged between the upper surface of the flat plate and the lower surface of the laminated plate, and the angle steel formwork includes a horizontal plate and a vertical plate, and the horizontal plate is arranged between the upper surface of the flat plate and the lower surface of the laminated plate, The inner side of the longitudinal plate is attached to the opposite surface of the prefabricated part of the superimposed beam, and the inner end of the horizontal screw is pressed against the outer side of the longitudinal plate.

Further, the above-mentioned prefabricated part of the superimposed beam includes the reinforcing bars at the bottom of the superimposed beam, the closed stirrups arranged at intervals on the reinforcing bars at the bottom of the superimposed beam, and the concrete poured at the bottom of the prefabricated part of the superimposed beam, and the upper part of the closed stirrup is exposed at the bottom of the prefabricated part of the superimposed beam. Outside the concrete; before the concrete is poured, the reinforcing bars at the bottom of the superimposed beams are bound and fixed with the lower part of the closed stirrups, the auxiliary steel bars are suspended above the closed stirrups, and the upper part of the closed stirrups are pre-fixed by connecting the stirrup fixing buckles with the auxiliary steel bars. After the final setting of the concrete pouring, remove the stirrup fixing buckle and auxiliary steel bar.

Further, the above-mentioned stirrup fixing buckle includes two arc-shaped plates, a straight screw rod which is arranged on the upper part of the two arc-shaped plates and has nuts at both ends, a hanging screw which is arranged in the lower part of the two arc-shaped plates, and two A T-shaped screw connected to the lower part of the hanging screw, the hanging screw includes a horizontal screw, a vertical rod connected to the middle of the horizontal screw, and an inverted U-shaped connector with two legs connected to the lower part of the vertical rod. The two legs of the connecting piece are connected with T-shaped screws, the head ends of the two T-shaped screws are arranged oppositely, the auxiliary steel bars are sandwiched between two arc-shaped plates, and the upper steel bars of the closed stirrups are clamped. Set between the head ends of the two T-shaped screws.

The utility model of the construction method of the auxiliary device for the installation of the assembled laminated beam plate is characterized in that:

The first step is to make several stirrup fixing buckles;

The second step is to make a template according to the existing traditional practice, and bind the steel bars at the bottom of the superimposed beam and the lower part of the stirrups. The fixed buckle is worn on an auxiliary steel bar, and then the position of the stirrup fixing buckle is adjusted according to the position of the stirrups at intervals. After adjusting in place, tighten the nut of the horizontal screw on the straight screw and the hanging screw, that is, fix the stirrup fixing buckle. Then fix the auxiliary steel bar on the formwork, adjust and tighten the T-shaped screw on the stirrup fixing button to fix the stirrup at the head end, and finally pour the concrete at the bottom of the composite beam. After the concrete is finally set, remove the reinforcement fixing buckle and maintain After a certain age, the formwork is removed to form a prefabricated composite beam with closed stirrups;

The third step: process the prefabricated laminated board according to the existing traditional practice;

The fourth step: transport the prefabricated part of the laminated board and the laminated beam with the closed stirrup to the construction site. After the construction of the vertical member (wall or column) is completed, the longitudinal reinforcement on the top of the laminated beam is inserted into the closed stirrup, The longitudinal reinforcement of the beam top is temporarily fixed on one side of the stirrup. When the cross-section of the superimposed beam is large enough, the longitudinal reinforcement of the beam top can also be temporarily fixed in the middle of the stirrup, and the longitudinal reinforcement of the beam top is temporarily fixed by using iron wire to bind the longitudinal reinforcement. It can be placed on the stirrup, and it can be tied at 4-5 places;

Step 5: According to the existing conventional practice, hoist and install the superimposed beam after temporarily fixing the longitudinal reinforcement of the beam top to form two oppositely arranged prefabricated parts of the superimposed beam;

Step 6: After the superimposed beam is installed and fixed, use the pre-embedded holes pre-buried on the opposite surface of the superimposed beam to fix the elevation adjustment device of the superimposed board with bolts. The alloy angle formwork is placed on the laminated plate elevation adjustment device, and the height is adjusted by the vertical screw on the laminated plate elevation adjustment device, so that the top surface of the angle steel formwork or aluminum alloy angle formwork is just at the bottom elevation of the laminated plate, and the steel or aluminum alloy angle formwork is just at the bottom elevation of the laminated plate. The length of the formwork is the same as the length of the laminated beam. By tightening the horizontal adjustment screw of the height adjustment device of the laminated board, the angle steel formwork or aluminum alloy angle formwork is tightened in the horizontal direction;

The seventh step: respectively hoist the laminated board, place it on the angle steel or aluminum alloy angle formwork, and then pour the laminated concrete according to the existing conventional method.

Further, the spacing or number of the laminated board elevation adjustment devices arranged in the longitudinal direction of the prefabricated part of the laminated beam is determined according to the width of each laminated board, and each laminated width is provided with at least two laminated board level adjustment devices.

There are three significant advantages of the utility model:

(1) Pre-install the reinforcement bars at the top of the superimposed beams to reduce the use of open stirrups and speed up the construction;

(2) Realize the rapid installation and positioning of the laminated board during construction;

(3) Fast and flexible mold sealing at the lap joint of the laminated board and the laminated beam is realized.

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings:

Fig. 1 is the schematic diagram of the installation structure of prefabricated laminated beam plate;

Figure 2 is a schematic diagram of the connection structure between the elevation adjustment device of the laminated plate and the prefabricated part of the laminated beam;

Fig. 3 is the structural schematic diagram of the prefabricated part of the superimposed beam connecting the longitudinal steel bars;

4 is a schematic diagram of the connection structure of the formwork, the prefabricated part of the laminated beam, the auxiliary steel bar and the stirrup fixing buckle;

Fig. 5 is the three-dimensional structure schematic diagram of stirrup fixing buckle;

Fig. 6 is the partial structure schematic diagram of Fig. 5;

Figure 7 is a schematic side view of the structure of the connection between the stirrup fixing buckle and the auxiliary steel bar and the upper steel bar of the stirrup;

Fig. 8 is the sectional structure schematic diagram of Fig. 3 perpendicular to the axis line of auxiliary steel bar;

Fig. 9 is the three-dimensional structural schematic diagram of the prefabricated part of the superimposed beam;

Figure 10 is a schematic diagram of the connection structure of the flat plate and the horizontal threaded sleeve.

Detailed ways:

In order to make the above-mentioned features and advantages of the present utility model more obvious and easy to understand, the following specific embodiments are given and the accompanying drawings are described in detail as follows.

The prefabricated composite beam plate installation auxiliary device of the utility model comprises two prefabricated parts 1 of the composite beams arranged in parallel; Laminate plate 3 on the adjustment device.

In one embodiment, the above-mentioned laminated plate elevation adjustment device 2 includes an L-shaped steel structure connector 4 composed of horizontal and vertical plates and a vertical adjustment screw 5 vertically threaded on the horizontal plate 11 of the L-shaped steel structure connector. The upper part of the vertical adjustment screw 5 is fixedly provided with a flat plate 6, and the bottom surface of the flat plate 6 is fixedly connected with a horizontal threaded sleeve 7 and a horizontal screw 8 threadedly connected to the horizontal threaded sleeve. The longitudinal plate 9 is fixedly connected with the pre-embedded holes preset on the opposite surface of the prefabricated part of the superimposed beam by bolts 10, and the superimposed plate 3 is supported on the flat plate.

Further, an angle steel formwork 12 is arranged between the upper surface of the flat plate and the lower surface of the laminated plate, and the angle steel formwork includes a transverse plate 13 and a vertical plate 14, and the transverse plate 13 is arranged on the upper surface of the flat plate and the lower surface of the laminated plate. Between the surfaces, the inner side of the longitudinal plate 14 is attached to the opposite surface A of the prefabricated part of the laminated beam, and the inner end of the horizontal screw 8 is pressed against the outer side of the longitudinal plate.

Further, the above-mentioned prefabricated part 1 of the superimposed beam comprises the bottom reinforcement bars 15 of the superimposed beam, the closed stirrups 16 arranged at intervals on the reinforcement bars at the bottom of the superimposed beam, and the concrete 17 poured at the bottom of the prefabricated part of the superimposed beam. The upper part is exposed to the concrete; before the concrete is poured, the reinforcing bars at the bottom of the superimposed beam and the lower part of the closed stirrups are bound and fixed, and the auxiliary steel bars 18 are suspended above the closed stirrups 16, and the two ends of the auxiliary steel bars 18 are supported on the formwork B, The upper part of the closed stirrup 16 is pre-fixed by connecting with the auxiliary steel bar 18 through the stirrup fixing buckle 19. After the concrete is finally set, the stirrup fixing buckle 19 and the auxiliary steel bar 18 are removed.

Further, the above-mentioned stirrup fixing buckle 19 includes two arc-shaped plates 20, a straight screw 21 which is arranged on the upper part of the two arc-shaped plates and has nuts at both ends, and a hanging shape which is arranged in the lower part of the two arc-shaped plates. The screw 22 and two T-shaped screws 23 connected to the lower part of the hanging screw. The hanging screw 22 includes a horizontal screw 24, a vertical rod 25 connected to the middle of the horizontal screw, and an inverted U connected to the lower part of the vertical rod with two legs. A T-shaped connecting piece 26, the two legs of the inverted U-shaped connecting piece are connected with a T-shaped screw 23, the head ends 27 of the two T-shaped screws are arranged oppositely, and the auxiliary steel bar 18 is sandwiched between the two arc-shaped plates 20. In between, the upper steel bar 28 of the closed stirrup is sandwiched between the head ends 27 of the two T-shaped screws.

Compared with the traditional open stirrups, the assembled beam-plate installation auxiliary device of the utility model reduces a large amount of welding workload and avoids the potential potential caused by the welding of stirrups because the closed stirrups are adopted for the stacked beams. The disadvantage of brittle failure. The device for adjusting the elevation of the laminated board proposed by the invention has both horizontal and vertical adjustment functions, and can be used as the fulcrum of the corner formwork at the same time, and the installation and removal are flexible and convenient.

The utility model is a construction method of an auxiliary device for the installation of an assembled composite beam and slab,

The first step is to make several stirrup fixing buckles;

The second step is to make template B according to the existing traditional practice, and bind the steel bars at the bottom of the superimposed beam and the lower part of the stirrups. The rib fixing buckle is worn on an auxiliary steel bar 18 (both ends of the auxiliary steel bar 18 are supported on the template B), and then adjust the position of the stirrup fixing buckle according to the position of the stirrups at intervals, and tighten the straight screw and hanging screw after adjusting in place. The nut of the upper horizontal screw, that is, fix the stirrup fixing buckle, then fix the auxiliary steel bar on the template, adjust and tighten the T-shaped screw on the stirrup fixing buckle, so that the head end is fixed with the stirrup, and finally pour the bottom of the superimposed beam Concrete, after the concrete is finally set, remove the rib fixing buckle, after curing to a certain age, remove the formwork to form a prefabricated composite beam with closed stirrups;

The third step: process the prefabricated laminated board according to the existing traditional practice;

The fourth step: transport the prefabricated part of the laminated board and the laminated beam with the closed stirrups to the construction site. After the construction of the vertical member (wall or column) is completed, the longitudinal reinforcement 29 on the top of the laminated beam is inserted into the closed stirrup. 16. Temporarily fix the longitudinal reinforcement on the top of the beam on one side of the stirrup. When the cross-section of the superimposed beam is large enough, the longitudinal reinforcement at the top of the beam can also be temporarily fixed in the middle of the stirrup. The steel bar can be bound on the stirrup, and it can be bound at 4-5 places;

Step 5: According to the existing conventional practice, hoist and install the superimposed beam after temporarily fixing the longitudinal reinforcement of the beam top to form two oppositely arranged prefabricated parts of the superimposed beam;

Step 6: After the superimposed beam is installed and fixed, use the pre-embedded holes pre-buried on the opposite surface of the superimposed beam to fix the elevation adjustment device of the superimposed board with bolts. The alloy angle formwork is placed on the laminated plate elevation adjustment device, and the height is adjusted by the vertical screw on the laminated plate elevation adjustment device, so that the top surface of the angle steel formwork or aluminum alloy angle formwork is just at the bottom elevation of the laminated plate, and the steel or aluminum alloy angle formwork is just at the bottom elevation of the laminated plate. The length of the formwork is the same as the length of the laminated beam. By tightening the horizontal adjustment screw of the height adjustment device of the laminated board, the angle steel formwork or aluminum alloy angle formwork is tightened in the horizontal direction;

The seventh step: respectively hoist the laminated board, place it on the angle steel or aluminum alloy angle formwork, and then pour the laminated concrete according to the existing conventional method.

Further, the spacing or number of the laminated board elevation adjustment devices arranged in the longitudinal direction of the prefabricated part of the laminated beam is determined according to the width of each laminated board, and each laminated width is provided with at least two laminated board level adjustment devices.

There are three significant advantages of the utility model:

(4) Pre-install the reinforcement bars at the top of the superimposed beam to reduce the use of open stirrups and speed up the construction;

(5) Realize the rapid installation and positioning of the laminated board during construction;

(6) Fast and flexible mold sealing at the lap joint of the laminated board and the laminated beam is realized.

Unless otherwise stated in any of the technical solutions disclosed in the above-mentioned utility model, if it discloses a numerical range, then the disclosed numerical range is the preferred numerical range, and any person skilled in the art should understand: the preferred numerical range is only It is a numerical value with obvious technical effect or a representative value among many practicable numerical values. Since there are many numerical values, it cannot be exhaustive. Therefore, the present utility model discloses some numerical values to illustrate the technical scheme of the present utility model. The numerical values should not constitute a limitation on the protection scope of the invention.

If words such as "first" and "second" are used herein to define components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing components The above terms have no special meaning unless otherwise stated.

Meanwhile, if the above-mentioned utility model discloses or involves parts or structural parts that are fixedly connected to each other, then, unless otherwise stated, fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), also It can be understood as: non-removable fixed connection (eg riveting, welding), of course, the mutual fixed connection can also be replaced by a one-piece structure (for example, integrally formed by casting process) (except that it is obviously impossible to adopt one-piece forming process).

In addition, the terms used to represent the positional relationship or shape used in any of the technical solutions disclosed in the present invention, unless otherwise stated, have their meanings including states or shapes that are similar to, similar to, or close to.

Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.

Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: still The specific embodiments of the present invention can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (5)

1. An assembly-type superimposed beam plate installation auxiliary device is characterized in that: comprising two superimposed beam prefabricated parts arranged in parallel, a superimposed plate elevation adjustment device and a support respectively arranged on the opposite surfaces of the two superimposed beam prefabricated parts Laminate on the Laminate Level Adjuster. 2. The assembly-type superimposed beam-slab installation auxiliary device according to claim 1, characterized in that: the superimposed plate elevation adjustment device comprises an L-shaped steel structure connector composed of horizontal and vertical plates and a vertical screw connection at the L-shaped steel structure. The vertical adjustment screw on the horizontal plate of the steel structure connecting piece, the upper part of the vertical adjustment screw is fixed with a flat plate, and the bottom surface of the flat plate is fixedly connected with a horizontal threaded sleeve and a horizontal screw threadedly connected to the horizontal threaded sleeve, The longitudinal plate of the L-shaped steel structure connector is fixedly connected to the pre-embedded hole preset on the opposite surface of the prefabricated part of the superimposed beam through bolts, and the superimposed plate is supported on the flat plate. 3. The assembly-type superimposed beam plate installation auxiliary device according to claim 2, characterized in that: an angle steel formwork is cushioned between the upper surface of the flat plate and the lower surface of the laminated plate, and the angle steel formwork includes a horizontal plate and a plate. Longitudinal plate, the horizontal plate is arranged between the upper surface of the flat plate and the lower surface of the laminated plate, the inner side of the longitudinal plate is attached to the opposite surface of the prefabricated part of the laminated beam, and the inner end of the horizontal screw is pressed against the outer side of the longitudinal plate. . 4 . The assembly-type superimposed beam-slab installation auxiliary device according to claim 3 , wherein the prefabricated part of the superimposed beam comprises steel bars at the bottom of the stacked beams and closed stirrups arranged on the steel bars at the bottom of the stacked beams at intervals. 5 . and the concrete poured at the bottom of the prefabricated part of the superimposed beam, the upper part of the closed stirrup is exposed outside the concrete; before the concrete is poured, the reinforcement at the bottom of the superimposed beam and the lower part of the closed stirrup are bound and fixed, and the upper part of the closed stirrup is suspended There are auxiliary steel bars, and the upper part of the closed stirrups is pre-fixed by connecting the stirrup fixing buckles with the auxiliary steel bars. After the concrete is finally set, the stirrup fixing buckles and the auxiliary steel bars are removed. 5 . The assembly-type superimposed beam-slab installation auxiliary device according to claim 4 , wherein the stirrup fixing buckle comprises two arc-shaped plates, one of which is penetrated on the upper part of the two arc-shaped plates and has belts at both ends. 6 . The straight screw of the nut, a hanging screw that penetrates the lower part of the two arc-shaped plates, and two T-shaped screws connected to the lower part of the hanging screw, the hanging screw includes a horizontal screw and a longitudinal rod connected to the middle section of the horizontal screw and an inverted U-shaped connector with two legs connected at the lower part of the longitudinal rod, the two legs of the inverted U-shaped connector are connected with a T-shaped screw, the head ends of the two T-shaped screws are oppositely arranged, and the auxiliary steel bar is It is sandwiched between two arc-shaped plates, and the upper steel bar of the closed stirrup is sandwiched between the head ends of the two T-shaped screws.

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