CN113833202B - Concrete superposed beam structure and construction method thereof - Google Patents

Abstract

The utility model relates to a concrete composite beam structure and construction method thereof, belong to composite beam structure field, concrete composite beam structure includes the composite beam body, connecting piece and splice, the connecting piece is connected at the both ends of composite beam body length direction and is used for making the composite beam body connect at length direction, the splice is connected at the lateral wall of composite beam body and is used for making the composite beam body lateral wall connect, the connecting piece includes the sleeve, insert a section of thick bamboo and mounting, the length direction of inserting a section of thick bamboo is parallel with the length direction of composite beam body and fixed connection is on the tip reinforcing bar of composite beam body, the sleeve overlaps the reinforcing bar outer wall at composite beam body other end tip, the mounting is connected between the sleeve and inserts a section of thick bamboo and is used for fixing the sleeve with inserting a section of thick bamboo. This application has the effect that makes the convenient concatenation of composite beam body.

Description

Concrete superposed beam structure and construction method thereof

Technical Field

The application relates to the field of composite beam structures, in particular to a concrete composite beam structure and a construction method thereof.

Background

The prefabricated structure has been widely used in super high-rise building structures, and the beam is one of the very important components of the building, and the existing prefabricated composite beam mainly adopts a prefabricated reinforced concrete composite beam, and the reinforcing steel bars are exposed out of the two ends of the composite beam in the length direction, so that the later reinforcing steel bars are mutually inserted to complete the connection.

Aiming at the related technologies, the inventor thinks that the splicing mode between the superposed beams depends on the mode of inserting the reinforcing steel bars, and concrete needs to be poured in the later period, which is more complicated.

Disclosure of Invention

In order to facilitate the splicing process of the composite beam, the application provides a concrete composite beam structure and a construction method thereof.

In a first aspect, the application provides a concrete composite beam structure, which adopts the following technical scheme:

the utility model provides a concrete superposed beam structure, including the superposed beam body, connecting piece and splice, the connecting piece is connected at the both ends of superposed beam body length direction and is used for making the superposed beam body connect at length direction, the splice is connected at the lateral wall of superposed beam body and is used for making and connects between the superposed beam body lateral wall, the connecting piece includes the sleeve, insert a section of thick bamboo and mounting, the length direction who inserts a section of thick bamboo is parallel with the length direction of superposed beam body and fixed connection is on the tip reinforcing bar of superposed beam body, the reinforcing bar outer wall at superposed beam body other end tip is established to the sleeve cover, the mounting is connected between the sleeve and is used for with the sleeve with insert a section of thick bamboo fixedly.

Through adopting above-mentioned technical scheme, in the work progress, the concatenation between the accessible splicer realization superposed beam body lateral wall, when the length direction concatenation superposed beam body of superposed beam body is followed to needs, insert the sleeve and insert a section of thick bamboo in, and it is fixed with an section of thick bamboo of inserting through the mounting with the sleeve, accomplish the superposed beam body and splice at length direction, the concatenation between the superposed beam body is very convenient, the purpose of diversified concatenation between the superposed beam body has also been reached, the suitability of superposed beam body has been improved.

Optionally, the fixing part includes an elastic part and a connecting column, a moving groove is formed in the outer side wall of the sleeve, one end of the connecting column is located in the sleeve, the other end of the connecting column is located outside the moving groove, the elastic part is located in the moving groove and used for driving the connecting column to move in or out of the moving groove, and a limiting groove used for accommodating the connecting column is formed in the inner wall of the inserting barrel.

Through adopting above-mentioned technical scheme, when the length direction concatenation superposed beam body of superposed beam body need be followed in the work progress, press the spliced pole, make the sleeve insert and insert a section of thick bamboo, the tip of spliced pole slides in inserting a section of thick bamboo, at this moment, the elastic component is compressed, when the spliced pole removed to the spacing groove, the spliced pole resets under the spring action of elastic component, gets into the spacing groove, makes the sleeve with insert a section of thick bamboo stable connection, the sleeve is simple with the fixed mode who inserts a section of thick bamboo.

Optionally, the splice includes splicing seat, splicing column, a splicing section of thick bamboo and locking piece, and the splicing seat can be dismantled through the locking piece with the lateral wall of superimposed beam body and be connected, and splicing column keeps away from superimposed beam body one side fixed connection with the splicing seat, and the preformed groove has been seted up to another lateral wall of superimposed beam body, splicing section of thick bamboo insert establish in the preformed groove and with superimposed beam body fixed connection.

Through adopting above-mentioned technical scheme, when needs are folded the superposed beam body at width or direction of height, will splice the seat and be connected with superposed beam body lateral wall, then insert the concatenation post in the concatenation section of thick bamboo after pre-buried to it is fixed through joint spare, whole process is simple convenient.

Optionally, the accommodating groove has been seted up with the lateral wall of concatenation seat junction to the superposed beam body, first vertical groove, horizontal groove and second vertical groove have been seted up to the inner wall of accommodating groove, first vertical groove is close to the lateral wall opening of concatenation seat, first vertical groove is parallel and extending direction is opposite with the second vertical groove, the horizontal groove is located between first vertical groove and the second vertical groove, the one end of horizontal groove and the one end intercommunication that concatenation seat was kept away from to first vertical groove, the second vertical groove communicates with the horizontal groove other end, the locking piece is the slider, the outer wall fixed connection of slider and concatenation seat, the slider slides along first vertical groove, horizontal groove and second vertical groove.

Through adopting above-mentioned technical scheme, slide the slider in first vertical groove, then rotate the slider, make the slider slide along the horizontal groove, later slide along the vertical groove of second again, because the action of gravity of coincide roof beam body, the coincide roof beam body is difficult for removing easily in the storage tank, consequently the firm in connection between concatenation seat and the coincide roof beam body, and the mode of connection is convenient.

Optionally, a magnetic part is arranged between the splicing seat and the superposed beam body, the magnetic part comprises a first magnet and a second magnet, the first magnet and the second magnet are attracted magnetically, the first magnet is fixedly connected to the bottom wall of the second vertical groove, and the second magnet is fixedly connected to the bottom wall of the sliding block.

Through adopting above-mentioned technical scheme, when the slider slided along the vertical groove of second, first magnet and second magnet magnetic attraction can make and be difficult for separating more between concatenation seat and the superposed beams body, consequently help convenient connection concatenation seat.

Optionally, a third vertical groove is formed in the inner wall of the accommodating groove, the third vertical groove and the second vertical groove are collinear, and the second vertical groove is communicated with the third vertical groove.

Through adopting above-mentioned technical scheme, in the work progress, can remove the composite beam body inevitable, at this moment, the slider can slide in the vertical inslot of third, and difficult entering horizontal groove, and then help making and be difficult for breaking away from between concatenation seat and the composite beam body, has improved the connection stability between concatenation seat and the composite beam body.

Optionally, a splicing groove has been seted up to a splicing barrel's lateral wall, and a splicing groove is close to one side opening of splicing seat, and the outer wall fixedly connected with of splicing post is spacing, and the outside of splicing barrel is rotated and is connected with the limiting plate that is used for shutoff splicing groove, is connected with the locating part that is used for fixed limiting plate on the limiting plate.

Through adopting above-mentioned technical scheme, slide spacing strip in the splice groove, then rotate the limiting plate to it is fixed with the limiting plate through the locating part, at this moment, spacing strip can not shift out from the splice groove, and the installation between a splice section of thick bamboo and the composite beam body dismantles the mode simply convenient.

Optionally, the side wall of the splicing column is provided with a clamping groove, and the side wall close to the axis of the splicing cylinder is located in the clamping groove after the limiting plate is closed.

Through adopting above-mentioned technical scheme, after rotating the limiting plate, the lateral wall of limiting plate gets into the draw-in groove, and the draw-in groove plays limiting displacement to the limiting plate, makes a concatenation section of thick bamboo and concatenation post not readily releasable, has improved the connection stability of a concatenation section of thick bamboo and concatenation post.

On the other hand, the construction method of the concrete composite beam structure provided by the application adopts the following technical scheme:

a construction method of a concrete composite beam structure comprises the following steps:

the method comprises the following steps that (1) a connecting piece (2), splicing pieces (3) and a superposed beam body (1) are prefabricated;

(2) The transportation connecting piece (2), the splicing pieces (3) and the superposed beam body (1);

(3) Splicing the superposed beam body (1) according to construction requirements, and splicing the superposed beam body (1) in the length direction through the connecting piece (2); the side walls of the superposed beam body (1) are spliced through the splicing pieces (3).

Through adopting above-mentioned technical scheme, through prefabricated connecting piece, splice and composite beam body, help making firm in connection between the composite beam body, then splice the composite beam body according to the construction demand, can splice each position of composite beam body, improved the suitability of composite beam body.

To sum up, this application includes following beneficial technological effect:

1. the connecting piece and the splicing piece are arranged on the superposed beam body, so that the superposed beam body can be spliced in the length direction and the width direction or the height direction, the splicing mode is simple and convenient, the effect of multi-direction splicing among the superposed beam bodies is achieved, and the applicability of the superposed beam body is improved;

2. by detachably connecting the splicing seat with the superposed beam body, when the splicing seat 31 is not needed, the superposed beam body can be separated from the splicing seat, so that the superposed beam body is attractive, the self weight of the superposed beam body is reduced, and the subsequent construction process of operators is facilitated;

3. the third vertical groove is formed in the inner wall of the accommodating groove, and the third vertical groove is collinear with the second vertical groove, so that the sliding block can slide in the third vertical groove and cannot easily enter the horizontal groove, the splicing seat and the superposed beam body cannot be easily separated, and the connection stability between the splicing seat and the superposed beam body is improved;

4. the side wall close to the axis of the splicing cylinder is positioned in the clamping groove after the limiting plate is closed, so that the splicing cylinder and the splicing column are not easy to separate, and the connection stability of the splicing cylinder and the splicing column is improved.

Drawings

Fig. 1 is a schematic perspective view of a concrete composite beam structure according to an embodiment of the present disclosure after splicing;

FIG. 2 is a schematic perspective view of a protruded fastener in a concrete composite beam structure according to an embodiment of the present disclosure;

FIG. 3 is a schematic perspective view of a protruding splice in a concrete composite beam structure according to an embodiment of the present disclosure;

FIG. 4 is a partial exploded view of a highlighted splice in a concrete composite beam structure according to an embodiment of the present application;

fig. 5 is an enlarged view of a portion a of fig. 1.

Reference numerals: 1. a laminated beam body; 2. a connecting member; 21. a sleeve; 22. inserting a cylinder; 23. a fixing member; 231. a moving groove; 232. an elastic member; 233. connecting columns; 234. a limiting groove; 3. splicing pieces; 31. a splicing seat; 32. splicing the columns; 33. a splicing barrel; 34. a locking member; 35. a containing groove; 4. a first vertical slot; 5. a horizontal groove; 6. a second vertical slot; 7. a third vertical slot; 8. a magnetic member; 81. a first magnet; 82. a second magnet; 9. a clamping piece; 91. splicing grooves; 92. a limiting plate; 93. a stopper; 94. a limiting strip; 10. a clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a concrete superposed beam structure and a construction method thereof.

In a first aspect, the present application discloses a concrete composite beam structure, referring to fig. 1 and 2, the concrete composite beam structure includes a composite beam body 1, a connecting member 2 and a splicing member 3, the connecting member 2 is connected at two ends of the composite beam body 1 in the length direction and is used for connecting the composite beam body 1 along the length direction, and the splicing member 3 is connected at the side wall of the composite beam body 1 and is used for connecting the side walls of the composite beam body 1. Predetermine connecting piece 2 and splice 3 and connect on superposed beam body 1, in the work progress, when needs concatenation superposed beam body 1, accessible connecting piece 2 makes superposed beam body 1 splice on length direction, still can realize the concatenation between the superposed beam body 1 lateral wall through splice 3, and is very convenient, has also made things convenient for the concatenation in a plurality of positions between the superposed beam body 1 simultaneously, has improved superposed beam body 1's suitability.

As shown in fig. 2, the composite beam body 1 is a rectangular parallelepiped formed by casting reinforcing bars and concrete, and the reinforcing bars at one end of the composite beam body 1 are exposed from the composite beam body 1. The connecting piece 2 comprises a sleeve 21, an inserting cylinder 22 and a fixing piece 23, the length direction of the inserting cylinder 22 is parallel to the length direction of the superposed beam body 1 and is welded on the side wall of the steel bar at the end part of the superposed beam body 1, concrete is poured between the steel bar and the sleeve 21, and the sleeve 21 is sleeved on the outer wall of the steel bar exposed at the end part of the other end of the superposed beam body 1 and is welded with the steel bar at the position.

Referring to fig. 1 and 2, the fixing member 23 may be provided with a plurality of fixing members fixed on the sidewall of the sleeve 21, in this embodiment, the fixing members 23 are provided with two fixing members and are symmetrical about the axial direction of the insertion tube 22, the outer sidewall of the sleeve 21 is provided with a moving groove 231, the fixing member 23 includes an elastic member 232 and a connecting column 233, one end of the connecting column 233 is located in the sleeve 21, the other end of the connecting column 233 is located outside the moving groove 231, and one end of the connecting column 233 exposed out of the moving groove 231 may be a cube or a convex hemisphere. The elastic member 232 is a spring, the spring is located in the moving groove 231, one end of the spring is bonded with the inner wall of the moving groove 231, the other end of the spring is welded with the side wall of the connecting column 233 located in the moving groove 231, and the inner peripheral wall of the inserting tube 22 is provided with a limiting groove 234 for accommodating the connecting column 233. When the composite beam body 1 needs to be spliced along the length direction of the composite beam body 1 in the construction process, the connecting column 233 is pressed, the sleeve 21 is inserted into the inserting cylinder 22, the end part of the connecting column 233 slides in the inserting cylinder 22, at the moment, the elastic part 232 is compressed, and when the connecting column 233 moves to the limiting groove 234, the connecting column 233 resets under the elastic action of the elastic part 232 and enters the limiting groove 234, so that an operator can quickly and conveniently fix the composite beam body 1 along the length direction of the composite beam body 1.

As shown in fig. 3, the splice 3 can be set as a plurality of and fixed on different sidewalls of the superposed beam body 1, so as to achieve connection between any two sidewalls of the two superposed beam bodies 1, in this embodiment, the splice 3 is set as one, and shown in fig. 4 and 5, the splice 3 includes a splice seat 31, a splice column 32, a splice cylinder 33 and a locking piece 34, an accommodating groove 35 has been opened on the sidewall of the superposed beam body 1, the splice seat 31 is located in the accommodating groove 35 and detachably connected with the superposed beam body 1 through the locking piece 34. Splicing column 32 and splicing seat 31 keep away from the lateral wall an organic whole of composite beam body 1 and are connected, and the preformed groove has been seted up to another lateral wall of composite beam body 1, splicing cylinder 33 insert establish in the preformed groove and with composite beam body 1 fixed connection, be equipped with joint spare 9 between splicing cylinder 33 and the splicing column 32, splicing cylinder 33 and splicing column 32 can dismantle through joint spare 9 and be connected. In the work progress, when needs splice at width or direction of height to coincide roof beam body 1, connect concatenation seat 31 in storage tank 35 through locking piece 34, then insert a concatenation section of thick bamboo 33 with concatenation post 32 in to it is fixed through joint 9, whole process is simple convenient.

As shown in fig. 4, in order to make the installation and disassembly process between the superposed beam body 1 and the splicing seat 31 simple and convenient, the inner wall of the accommodating groove 35 has been provided with a first vertical groove 4, a horizontal groove 5 and a second vertical groove 6, the first vertical groove 4 is close to the side wall opening of the splicing seat 31, the first vertical groove 4 is parallel to the second vertical groove 6, the second vertical groove 6 is located below the first vertical groove 4 and the extending direction of the two is opposite, the horizontal groove 5 is located between the first vertical groove 4 and the second vertical groove 6, one end of the horizontal groove 5 is communicated with one end of the first vertical groove 4 far away from the splicing seat 31, and the other end of the horizontal groove 5 is communicated with one end of the second vertical groove 6 close to the splicing seat 31. The inner wall of the accommodating groove 35 is provided with a third vertical groove 7, and the third vertical groove 7 is collinear and communicated with the second vertical groove 6. Locking piece 34 is the slider, slider and splice seat 31's outer wall body coupling, and the slider slides along first vertical groove 4, horizontal groove 5 and second vertical groove 6.

As shown in fig. 4, a magnetic member 8 is disposed between the splicing seat 31 and the composite beam body 1, the magnetic member 8 includes a first magnet 81 and a second magnet 82, the first magnet 81 and the second magnet 82 are magnetically attracted, the first magnet 81 is adhered to the bottom wall of the second vertical slot 6, and the second magnet 82 is welded to the bottom wall of the sliding block.

When the superposed beam body 1 needs to be spliced along the width direction or the height direction of the superposed beam body 1, firstly, the sliding block slides into the first vertical groove 4, then, the sliding block is rotated, the sliding block slides along the horizontal groove 5, when the sliding block does not move in the horizontal groove 5, the superposed beam body 1 vertically moves, the sliding block slides along the second vertical groove 6, at the moment, the first magnet 81 and the second magnet 82 are magnetically attracted, the connection between the splicing seat 31 and the superposed beam body 1 is realized, the splicing seat is simple and convenient, the disassembly is convenient, the splicing seat 31 is firmly connected with the superposed beam body 1, and when the superposed beam body 1 does not need to be spliced, after the splicing seat 31 is disassembled, the superposed beam body 1 is attractive and convenient for subsequent construction.

As shown in fig. 4, in order to further reduce the possibility that the splicing seat 31 and the composite beam body 1 are separated from each other, the inner wall of the accommodating groove 35 is provided with a third vertical groove 7, the third vertical groove 7 is collinear with the second vertical groove 6, and the bottom ends of the second vertical groove 6 and the third vertical groove 7 are communicated. At this time, even if the composite beam body 1 is pulled upward, the slider is not easily inserted into the horizontal groove 5 due to the insertion into the third vertical groove 7, which contributes to the improvement of the connection stability between the splice holder 31 and the composite beam body 1.

As shown in fig. 4 and 5, the splicing groove 91 is formed in the side wall of the splicing barrel 33, the splicing groove 91 is close to the side wall opening of the splicing seat 31, the splicing groove 91 is formed in two axial lines parallel to the splicing barrel 33, the length direction of the splicing column 32 is parallel to the length direction of the splicing barrel 33, the outer wall of the splicing column 32 is integrally connected with the limiting strip 94, and the limiting strip 94 is located in the splicing groove 91 and is slidably connected with the splicing barrel 33. The clamping piece 9 comprises a limiting plate 92 and a limiting piece 93, the limiting plate 92 is arc-shaped, one end of the limiting plate 92 in the length direction is rotatably connected with the outer wall of the splicing barrel 33 through a rotating shaft, and the other end of the limiting plate 92 is fixed on the top wall of the splicing barrel 33 through the limiting piece 93. The limiting member 93 is a set bolt, which is in threaded connection with the limiting plate 92 and can pass through the limiting plate 92 and then abut against the splicing barrel 33. The side wall of the splicing column 32 is provided with an annular clamping groove 10 along the circumferential direction, the clamping groove 10 is positioned on one side of the limiting strip 94 close to the splicing seat 31, and the inner side wall of the limiting plate 92 close to the axis of the splicing groove 91 is positioned in the splicing groove 91 after being closed.

Combine fig. 4 and fig. 5 to show, slide into splice groove 91 spacing strip 94, then rotate limiting plate 92, make limiting plate 92's lateral wall and the roof laminating of a concatenation section of thick bamboo 33, and will tightly decide the bolt tightening, can make the convenient concatenation of operating personnel coincide beam body 1, at this moment, in limiting plate 92's lateral wall embedding draw-in groove 10, draw-in groove 10 plays limiting displacement to limiting plate 92, help making a concatenation section of thick bamboo 33 and the difficult separation of concatenation post 32, the stability of being connected of a concatenation section of thick bamboo 33 and concatenation post 32 has been improved, the installation dismantlement mode between the concatenation beam body 1 is simple convenient.

The implementation principle of a concrete composite beam structure of the embodiment of the application is as follows: in the pouring process of the concrete superposed beam body 1, the connecting pieces 2 and the splicing pieces 3 are preset, and at the moment, the connecting pieces 2 are connected to the superposed beam body 1. In the construction process, when the superposed beam body 1 needs to be spliced along the length direction of the superposed beam body 1, after the sleeve 21 is inserted into the insertion cylinder 22, the fixing piece 23 can make the sleeve 21 and the insertion cylinder 22 difficult to separate, so that the superposed beam body 1 is firmly spliced along the length direction; when the superposed beam body 1 needs to be spliced along the width or height direction of the superposed beam body 1, the splicing seat 31 is connected with the superposed beam body 1 through the locking piece 34, then the splicing column 32 is inserted into the splicing cylinder 33, and then the splicing column 32 is not easy to separate from the superposed beam body 1 through the clamping piece 9, so that the splicing between the side walls of the superposed beam body 1 is realized; the whole process is convenient, and the splicing can be performed in different directions of the superposed beam body 1 according to actual requirements in the construction process, so that the applicability of the superposed beam body 1 is improved.

In a second aspect, an embodiment of the present application discloses a construction method of a concrete composite beam structure, including the following steps:

(1) Prefabricated connecting piece 2, splice 3 and composite beam body 1. Binding reinforcing steel bars at two ends of a reinforcing cage in the length direction, enabling the reinforcing steel bars bound at the two ends to be staggered, welding a prefabricated insertion cylinder 22 on the side wall of the reinforcing steel bar at one end, enabling an opening of the insertion cylinder 22 to face outwards, sleeving a sleeve 21 on the reinforcing steel bar at the other end, presetting a splicing cylinder 33 on the side wall of the reinforcing steel cage, pouring concrete between the reinforcing steel cage and the splicing cylinder 33 and between the reinforcing steel bar and the insertion cylinder 22, enabling one end, away from the sleeve 21, of the insertion cylinder 22 to be flush with a concrete interface, exposing the concrete interface from the sleeve 21, and processing the preset superposed beam body 1 through the steps; a preformed groove is formed on the side wall of the superposed beam body 1; and preset the splicing seat 31 in a concrete pouring mode, and the preset modes of other structures are not described herein again.

(2) Transport connector 2, splice 3 and composite beam body 1. And (4) transporting the splicing pieces 3 and the composite beam body 1 to a construction site according to the requirement. The construction method of the whole superposed beam structure is beneficial to quickly and conveniently realizing multi-directional splicing of the superposed beam body 1 and improving the applicability of the superposed beam body 1.

(3) Splicing the superposed beam body 1 according to construction requirements, and splicing the superposed beam body 1 in the length direction through the connecting piece 2; the side walls of the superposed beam body 1 are spliced through the splicing pieces 3. After the sleeve 21 is inserted into the insertion tube 22, the connecting column 233 enters the limiting groove 234 under the elastic force of the elastic member 232, so that the sleeve 21 and the insertion tube 22 are not easy to separate, and the superposed beam body 1 is firmly spliced in the length direction; after the splicing seat 31 and the composite beam body 1 are connected through the locking piece 34, the splicing column 32 is inserted into the splicing barrel 33, the limiting plate 92 is rotated, the inner side wall of the limiting plate 92 is positioned in the clamping groove 10, and the splicing of the composite beam body 1 in the width direction or the height direction is completed.

The construction method of the whole superposed beam structure is beneficial to quickly and conveniently realizing multidirectional splicing of the superposed beam body 1, and further beneficial to improving the applicability of the superposed beam body 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A concrete composite beam structure is characterized in that: the connecting piece (2) is connected to two ends of the length direction of the superposed beam body (1) and used for enabling the superposed beam body (1) to be connected in the length direction, the splicing piece (3) is connected to the side wall of the superposed beam body (1) and used for enabling the superposed beam body (1) to be connected between the side walls, the connecting piece (2) comprises a sleeve (21), an inserting cylinder (22) and a fixing piece (23), the length direction of the inserting cylinder (22) is parallel to the length direction of the superposed beam body (1) and fixedly connected to a reinforcing steel bar at the end part of the superposed beam body (1), the sleeve (21) is sleeved on the outer wall of the reinforcing steel bar at the other end part of the superposed beam body (1), and the fixing piece (23) is connected between the sleeve (21) and the inserting cylinder (22) and used for fixing the sleeve (21) and the inserting cylinder (22);

splice (3) are including concatenation seat (31), concatenation post (32), a concatenation section of thick bamboo (33) and locking piece (34), and concatenation seat (31) can be dismantled through locking piece (34) with the lateral wall of coincide roof beam body (1) and be connected, and concatenation post (32) are kept away from coincide roof beam body (1) one side fixed connection with concatenation seat (31), and the preformed groove has been seted up to another lateral wall of coincide roof beam body (1), and a concatenation section of thick bamboo (33) are inserted and are established in the preformed groove and with coincide roof beam body (1) fixed connection.

2. The concrete composite beam structure according to claim 1, wherein: the fixing piece (23) comprises an elastic piece (232) and a connecting column (233), a moving groove (231) is formed in the outer side wall of the sleeve (21), one end of the connecting column (233) is located in the sleeve (21), the other end of the connecting column is located outside the moving groove (231), the elastic piece (232) is located in the moving groove (231) and used for driving the connecting column (233) to move into or out of the moving groove (231), and a limiting groove (234) used for containing the connecting column (233) is formed in the inner wall of the inserting barrel (22).

3. The concrete composite beam structure according to claim 1, wherein: storage tank (35) have been seted up to the lateral wall of superimposed beam body (1) and concatenation seat (31) junction, first vertical groove (4) have been seted up to the inner wall of storage tank (35), horizontal groove (5) and second vertical groove (6), first vertical groove (4) are close to the lateral wall opening of concatenation seat (31), first vertical groove (4) and second vertical groove (6) are parallel and extending direction is opposite, horizontal groove (5) are located between first vertical groove (4) and second vertical groove (6), the one end of horizontal groove (5) and the one end intercommunication of first vertical groove (4) keeping away from concatenation seat (31), second vertical groove (6) and horizontal groove (5) other end intercommunication, locking piece (34) are the slider, the slider is connected with the outer wall fixed of concatenation seat (31), the slider slides along first vertical groove (4), horizontal groove (5) and second vertical groove (6).

4. A concrete composite beam structure according to claim 3, wherein: be equipped with magnetic part (8) between concatenation seat (31) and the composite beam body (1), magnetic part (8) include first magnet (81) and second magnet (82), first magnet (81) and second magnet (82) magnetism actuation, first magnet (81) fixed connection is in the diapire of second vertical groove (6), second magnet (82) fixed connection is in the diapire of slider.

5. The concrete composite beam structure according to claim 4, wherein: and a third vertical groove (7) is formed in the inner wall of the accommodating groove (35), the third vertical groove (7) and the second vertical groove (6) are collinear, and the second vertical groove (6) is communicated with the third vertical groove (7).

6. The concrete composite beam structure according to claim 1, wherein: a splicing groove (91) is formed in the side wall of the splicing barrel (33), one side of the splicing groove (91) close to the splicing seat (31) is opened, the outer wall of the splicing column (32) is fixedly connected with a limiting strip (94), the outside of the splicing barrel (33) is rotatably connected with a limiting plate (92) used for plugging the splicing groove (91), and the limiting plate (92) is connected with a limiting part (93) used for fixing the limiting plate (92).

7. The concrete composite beam structure according to claim 6, wherein: the side wall of the splicing column (32) is provided with a clamping groove (10), and the side wall, close to the axis of the splicing barrel (33), of the closed limiting plate (92) is located in the clamping groove (10).

8. A construction method of a concrete composite beam structure according to any one of claims 1 to 7, wherein: the method comprises the following steps:

the method comprises the following steps that (1) a connecting piece (2), splicing pieces (3) and a superposed beam body (1) are prefabricated;

(2) The transportation connecting piece (2), the splicing pieces (3) and the superposed beam body (1);

(3) Splicing the superposed beam body (1) according to construction requirements, and splicing the superposed beam body (1) in the length direction through the connecting piece (2); the side walls of the superposed beam body (1) are spliced through the splicing pieces (3).

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