CN212743136U - Large-span high-strength crossbeam structure - Google Patents

Abstract

The utility model relates to a large-span high-strength beam structure, including steel reinforcement cage and a plurality of gang connection spare, the steel reinforcement cage include the vertical square frame that sets up of a plurality of groups and with each the equal fixed connection in four corners of square frame, the rib of mutual parallel arrangement, each the equal perpendicular to each of extending direction of rib the plane at square frame place, the peripheral parcel of steel reinforcement cage has concrete mortar layer, each the connecting piece with the steel reinforcement cage is connected and is stretched out the up end of steel reinforcement cage. This application is prefabricated in batches to the crossbeam according to indoor building's size, when carrying out building construction, hoists prefabricated crossbeam, has realized the quick construction of crossbeam, has compressed construction cycle, has promoted construction workman's labor efficiency.

Description

Large-span high-strength crossbeam structure

Technical Field

The application relates to the technical field of indoor cross beams, in particular to a large-span high-strength cross beam structure.

Background

Along with the development of society, the volume of modern buildings is also continuously increased. The structure of house includes the wall body, the ground of each floor and erects the crossbeam between two-layer floor, and the crossbeam supports the ground of last floor building, has proposed higher requirement to the bearing capacity of crossbeam.

In the process of constructing a house building, a reinforcement cage structure of a wall body and a beam needs to be erected firstly, when the erection of the wall body of a building on one side and a reinforcement cage in the beam is completed, a template needs to be erected and concrete mortar needs to be poured, the concrete mortar is filled into a cavity surrounded by the erected template, the template is disassembled after the concrete mortar is hardened, the building of a building on one floor is completed, and then the template is erected and the concrete mortar is poured to construct the ground of the building on the previous floor.

The above prior art solutions have the following drawbacks: when the construction of the building is carried out, the construction of the beam part needs to be carried out by multiple processes of erecting a steel reinforcement cage, erecting a template, pouring concrete mortar, removing a template and the like, the whole process needs longer time, the construction period of the building is further limited, the whole construction period of the building is longer, and therefore, the improvement space exists.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, this application provides a large-span high-strength beam structure, carries out prefabrication in batches to the crossbeam according to indoor building's size, when carrying out the building construction, hoists prefabricated crossbeam, has realized the quick construction of crossbeam, has compressed construction cycle, has promoted construction workman's labor efficiency.

The above application purpose of the present application is achieved by the following technical solutions:

the utility model provides a large-span high-strength beam structure, includes steel reinforcement cage and a plurality of group's connecting piece, the steel reinforcement cage include the square frame of the vertical setting of a plurality of groups and with each the equal fixed connection in four corners of square frame, the rib of mutual parallel arrangement, each the extending direction of rib all perpendicular to each the plane at square frame place, the peripheral parcel of steel reinforcement cage has the concrete mortar layer, each the connecting piece with the steel reinforcement cage is connected and is stretched out the up end of steel reinforcement cage.

By adopting the technical scheme, the reinforcement cage comprises a plurality of groups of square frames and ribs fixedly connected with four corners of each group of square frames, each group of square frames are fixedly connected by the ribs, the integrity of each group of square frames is improved, the structural strength of the reinforcement cage formed by the group of square frames and the ribs is higher, the bending strength of the reinforcement cage is higher, a concrete mortar layer wrapped on the periphery of the reinforcement cage is filled into the reinforcement cage, each part of the reinforcement cage is wrapped by the concrete mortar layer, meanwhile, each group of connecting pieces extends out of the upper end surface of the reinforcement cage, when the prefabricated beam is hoisted in a construction ground, each group of connecting pieces are conveniently bolted to realize hoisting, and simultaneously each group of connecting pieces extends out of the upper end surface of the reinforcement cage, so that each group of connecting pieces is buried in the ground of the upper layer when the ground of the upper layer is poured, the connecting strength of the beam and the ground above is improved, through the technical scheme, the cross beams are prefabricated in batches, the cross beams are assembled in a hoisting mode on a construction site, the efficiency of cross beam construction is improved, the construction period is shortened, the connection strength of the cross beams and the ground of the upper layer is improved, and the bending resistance of the cross beams is improved.

The present application may be further configured in a preferred example to: and the two groups of diagonal lines of the square frame are fixed with cross-connected counter-pulling reinforcing steel bars, and the connection points of the two groups of counter-pulling reinforcing steel bars are positioned at the central symmetry point of the square frame.

Through adopting above-mentioned technical scheme, two sets of counter-pulling reinforcing bars are fixed on two sets of diagonal lines of square frame, and the counter-pulling reinforcing bar makes the structural strength of square frame obtain promoting, and then makes the anti deformability of square frame obtain promoting, and each group of group frame has constituted one of the major structure of steel reinforcement cage, and then makes the structural strength and the bending strength of steel reinforcement cage obtain promoting.

The present application may be further configured in a preferred example to: the connection points of the two groups of counter-pulling steel bars on the square frames are positioned on the same horizontal straight line, and horizontally arranged reinforcing steel bars are fixedly connected between the connection points on the square frames.

Through adopting above-mentioned technical scheme, fixed connection has the reinforcing bar that the level set up on the tie point of two sets of counter-pulling reinforcing bars in each group's square frame, and each group's reinforcing bar carries out fixed connection with each group's frame, and the structural strength between each group's frame obtains further promotion, and then makes the structural strength of steel reinforcement cage obtain promoting, and the steel reinforcement cage is as the keel structure of crossbeam, and then makes the bending strength of crossbeam obtain promoting.

The present application may be further configured in a preferred example to: the upper end and the lower end of the front vertical end face and the lower end of the rear vertical end face of each square frame in the extending direction are respectively fixed with a first threaded rod with a horizontally arranged axis, the front vertical end face and the rear vertical end face of each square frame in the extending direction are respectively provided with a first frame body, the periphery of each first frame body is provided with a jack which is right opposite to each first threaded rod, and each first threaded rod is inserted into the jack at the corresponding position and is screwed with a fastening nut.

Through adopting above-mentioned technical scheme, each group's first threaded rod on the square frame is just right just to and peg graft with each group's jack on the first framework, vertical terminal surface fixed connection around first framework and the square frame, and first framework makes the structural strength of square frame obtain promoting, and the square frame is difficult for receiving the extrusion on the horizontal direction and taking place to warp, and fastening nut and first threaded rod threaded connection play limiting displacement to first framework, have avoided first framework and square frame to break away from.

The present application, in a preferred example, can be further configured to: the first frame body is rectangular, and first protective ribs which are in cross connection are fixed on two groups of diagonal lines of the first frame body.

Through adopting above-mentioned technical scheme, first two sets of diagonals of protecting the muscle with first framework carry out the split connection, make the structural strength of first framework obtain promoting, first framework is difficult for receiving the extrusion and takes place to warp, and the setting up of first protection muscle simultaneously makes the parcel of concrete mortar layer grab the power and obtain promoting, and the concrete mortar layer is difficult for taking place to peel off with the steel reinforcement cage.

The present application may be further configured in a preferred example to: second threaded rods with vertically arranged axes are fixed at the front ends and the rear ends of the upper vertical end surfaces and the lower vertical end surfaces of the extending directions of the square frames, second frame bodies are arranged on the upper horizontal end surfaces and the lower horizontal end surfaces of the extending directions of the square frames, jacks opposite to the second threaded rods are formed in the peripheral edges of the second frame bodies, and the second threaded rods are inserted into the jacks at corresponding positions and are screwed with fastening nuts.

Through adopting above-mentioned technical scheme, each group's second threaded rod on the square frame is just right just to and peg graft with each group's jack on the second framework, the upper and lower horizontal terminal surface fixed connection of second framework and square frame, the setting up of second framework makes the structural strength of square frame obtain promoting, the square frame is difficult for receiving the ascending extrusion of vertical side and takes place to warp, fastening nut and second threaded rod threaded connection play limiting displacement to the second framework, have avoided second framework and square frame to break away from.

The present application may be further configured in a preferred example to: the second frame body is rectangular, and second protective ribs which are in cross connection are fixed on two groups of diagonal lines of the second frame body.

Through adopting above-mentioned technical scheme, the second protects the muscle and carries out the split with two sets of diagonals of second framework and connect, makes the structural strength of second framework obtain promoting, and the second framework is difficult for receiving the extrusion and takes place to warp, and the setting up of muscle is protected to the second simultaneously makes the parcel of concrete mortar layer grab the power and obtain promoting, and the concrete mortar layer is difficult to take place to peel off with the steel reinforcement cage.

The present application may be further configured in a preferred example to: the connecting piece comprises a shaft body and a disc, the shaft body is vertically fixed with the upper end frame of the square frame, the disc is fixed with the upper end face of the shaft body, a plurality of groups of through holes are formed in the upper end face of the disc in a penetrating mode, and the through holes are distributed around the axis of the disc in an equiangular circumferential mode.

Through adopting above-mentioned technical scheme, axis body and square frame fixed connection, the upper end fixed connection of disc and axis body, each group's through-hole on the disc of pole is convenient for the couple on the crane to articulate simultaneously, when pouring on upper strata ground, concrete mortar flows in each group's through-hole and constantly fills the space below the disc, the concrete mortar layer of making the disc upper and lower extreme passes through the through-hole and connects for a whole, the setting of axis body and disc has promoted the joint strength of crossbeam with upper strata ground, when the crossbeam of crossbeam top receives the pressure on upper strata ground, each group's axis body and disc produce the pulling force to upper strata ground, make the crossbeam obtain the promotion with the wholeness on upper strata ground.

In summary, the present application includes at least one of the following beneficial technical effects:

1. each group of vertically arranged square frames in the reinforcement cage is fixedly connected through four groups of ribs to form a main body structure of the reinforcement cage, and a concrete mortar layer is coated on the periphery of the reinforcement cage; the structural strength of each group of square frames is further improved by each group of paired tensile steel bars and reinforcing steel bars, the square frames are not easy to deform under pressure, the structural strength of a steel reinforcement cage is improved, the steel reinforcement cage is used as a keel structure of the cross beam, the structural strength of the steel reinforcement cage is improved, the bending strength of the cross beam is improved, when the cross beam supports the ground of an upper floor, the bearing capacity of the cross beam is improved, the cross beam is not easy to damage, the arrangement of each group of connecting pieces is convenient for hoisting the cross beam, through the matching, the cross beam realizes batch prefabrication in a processing factory, and is installed on a construction site in a hoisting mode, so that the quick installation of the cross beam is realized, the construction period is further shortened, and the construction efficiency is;

2. the first threaded rod and the second threaded rod on each group of frame are respectively opposite to and inserted into the insertion holes on the first frame and the second frame, and the fastening nuts are used for fixedly connecting the first frame and the second frame with the square frames respectively, so that the structural strength of the square frames is improved, the bending resistance of the reinforcement cage is improved, and the structural strength of the cross beam is improved;

3. the shaft body is fixedly connected with the upper end face of each group of square frames, the disc is fixed on each group of shaft bodies, through holes which are formed in the disc and run through the upper end face and the lower end face of the disc are convenient to articulate during hoisting, and meanwhile concrete mortar flows through the through holes, so that concrete mortar layers above and below the disc are integrated, and the connection strength of the cross beam and the upper ground is improved.

Drawings

FIG. 1 is a schematic view of a half-section of a concrete mortar layer in the present embodiment;

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

FIG. 3 is a schematic structural view of the reinforcement cage and sets of connectors according to the present embodiment;

fig. 4 is a partially enlarged schematic view at B in fig. 3.

In the figure, 1, a reinforcement cage; 11. a square frame; 111. oppositely pulling the reinforcing steel bars; 112. reinforcing steel bars; 12. ribs; 13. a first threaded rod; 131. a first frame body; 1311. a jack; 1312. fastening a nut; 132. a first protective rib; 14. a second threaded rod; 141. a second frame body; 142. a second bead; 2. a connecting member; 21. a shaft body; 22. a disc; 221. a through hole; 3. and (5) a concrete mortar layer.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, for a large-span high-strength beam structure that this application discloses, including steel reinforcement cage 1 and a plurality of group's connecting piece 2, steel reinforcement cage 1 includes the square frame 11 of each group's vertical setting and with the equal fixed connection in four corners of each group's frame 11, rib 12 of mutual parallel arrangement, each group's frame 11 is the square, each group's square frame 11 all includes four groups of frames, each group's frame is the reinforcing bar, the butt welding of both ends of each group's frame becomes an organic whole, each group's rib 12 is with the four corners fixed connection of each group's frame 11, the equal level setting of each group's rib 12, the extending direction of each group's rib 12 all is perpendicular to the plane that each group's frame 11 belonged. Two groups of inclined counter-pulling steel bars 111 are fixed on two groups of diagonal lines of each square frame 11, the two groups of counter-pulling steel bars 111 are mutually crossed and fixedly connected at a cross point, and the cross connection point of the two groups of counter-pulling steel bars 111 is positioned at the central symmetry point of the square frame 11.

The front vertical end face and the rear vertical end face in the extension direction of the steel reinforcement cage 1 are provided with a first frame body 131, and the first frame body 131 is rectangular; the upper end and the lower end of the frame of each group of square frames 11 on the front vertical end surface and the rear vertical end surface of the reinforcement cage 1 are respectively fixed with a first threaded rod 13, and the axis of each first threaded rod 13 is horizontally arranged and is parallel to the plane where each group of square frames 11 is located; a plurality of sets of insertion holes 1311 are formed in the upper and lower frames of the first frame 131, and the sets of insertion holes 1311 are opposite to the sets of first threaded rods 13 one by one. When the first frame body 131 is fixedly connected with the front and rear vertical end surfaces of the reinforcement cage 1, the first threaded rods 13 of each group are inserted into the insertion holes 1311 of each group which are opposite to each other and are screwed with the fastening nuts 1312, and the fastening nuts 1312 of each group fixedly connect the first frame body 131 with the square frames 11 of each group. Two groups of inclined first protection ribs 132 are fixed on two groups of diagonal lines of the first frame body 131, the first protection ribs 132 of each group are mutually crossed and fixedly connected at the crossed points, and the first protection ribs 132 of each group are welded and fixed with the frame of the square frame 11.

The upper end face and the lower end face of the reinforcement cage 1 are provided with a second frame body 141, the second frame body 141 is rectangular, the second frame body 141 and the first frame body 131 are the same in size, the two ends of each group of square frames 11 on the upper end face and the lower end face of the reinforcement cage 1 are fixed with second threaded rods 14, and the axes of the second threaded rods 14 are vertically arranged and are parallel to the plane where each group of square frames 11 are located; a plurality of sets of insertion holes 1311 are formed in the side frames of the second frame 141 in the length direction, and each set of insertion holes 1311 is opposite to each set of second threaded rods 14. When the second frame 141 is fixedly connected to the upper and lower end surfaces of the reinforcement cage 1, the second threaded rods 14 of the respective sets are inserted into the insertion holes 1311 of the respective sets facing each other, and fastening nuts 1312 are tightened, and the fastening nuts 1312 of the respective sets fixedly connect the second frame 141 to the respective sets of square frames 11. Two groups of second protection ribs 142 are fixed on two groups of diagonal lines of the second frame 141, the second protection ribs 142 are mutually crossed and fixedly connected at the crossed point, and the second protection ribs 142 are welded and fixed with the frame of the square frame 11.

Referring to fig. 3, the intersection fixing points of two sets of counter-pulling bars 111 on two sets of diagonal lines inside each set of square frame 11 are located on the same horizontal plane, reinforcing bars 112 are inserted inside each set of square frame 11, the reinforcing bars 112 are horizontally arranged and the extending direction thereof is parallel to the extending direction of each set of ribs 12, the length of the reinforcing bars 112 is the same as that of the ribs 12, and the reinforcing bars 112 are welded and fixed with the connecting points of the two sets of counter-pulling bars 111 in each set of square frame 11.

Referring to fig. 3 and 4, the connecting member 2 includes a plurality of sets of shaft bodies 21 and disks 22, the shaft bodies 21 and the disks 22 are all cylindrical structures, the lower end of the shaft body 21 is welded and fixed with the upper end face frame of the square frame 11, the disks 22 are fixed at the upper end portion of the shaft body 21, and the axis of the shaft body 21 and the axis of the disks 22 are collinear and are all vertically arranged. The upper end surface of the disc 22 is vertically provided with a plurality of groups of through holes 221, each through hole 221 penetrates through the upper end surface and the lower end surface of the disc 22, and the groups of through holes 221 are distributed around the axis of the disc 22 at equal angles in a circumferential manner.

The working conditions and the implementation principle of the embodiment are as follows:

when the large-span high-strength beam structure is produced and manufactured, firstly, all groups of the reinforcing steel bars 111 and the square frames 11 are welded and fixed, then the reinforcing steel bars 112 are inserted into all groups of the square frames 11, the reinforcing steel bars 112 and the reinforcing steel bars 111 are welded through connecting points, all groups of the square frames 11 are continuously welded with four groups of the ribs 12, and the main structure of the reinforcement cage 1 is built.

The first threaded rod 13 and the second threaded rod 14 are welded to the front, rear, upper and lower frames of the group of frames 11, the first protective rib 132 is welded to the first frame 131, the second protective rib 142 is welded to the second frame 141, the first threaded rod 13 and the first threaded rod 13 are inserted into the groups of insertion holes 1311 formed in the first frame 131 and the second frame 141, respectively, and the fastening nuts 1312 are tightened, respectively. Each of the shaft assemblies 21 is welded and fixed to the upper end surface of the frame 11.

When carrying out pouring of 1 outlying concrete mortar layer 3 of steel reinforcement cage, at first hoist and mount steel reinforcement cage 1 through hoisting equipment and go into the mould incasement portion, the mould case is upper end open-ended box, the mould case is the same with steel reinforcement cage 1's length, each group's second threaded rod 14 and the diapire butt of mould case, each group's first threaded rod 13 and the vertical inner wall butt of mould case, first threaded rod 13, second threaded rod 14 plays the supporting role, pour the concrete mortar into the mould incasement portion, each group's axis body 21 protrusion mould case's upper end opening, the up end with the mould case is floating. And (3) demolding after the concrete mortar is hardened and shaped, and exposing the ends of the first threaded rods 13 and the second threaded rods 14, which are far away from the square frame 11, out of the outer surface of the concrete mortar layer 3 to be coplanar to finish the prefabrication of the beam structure.

When the beam structure is installed, the hoisting equipment is hung with the groups of the discs 22 to hoist the beam, and when the construction of the ground above the beam is carried out, the groups of the connecting pieces 2 are pre-buried in the concrete of the upper ground, so that the connecting pieces 2 are fixedly connected with the beam and the ground of the upper building, and the integrity of the beam and the upper building is improved. When the erection of the beam is completed, the putty layer needs to be smoothed on the surface of the beam, and one end of each group of the first threaded rods 13 and the second threaded rods 14, which is exposed out of the concrete mortar layer 3, is covered.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the 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. The utility model provides a large-span high-strength beam structure, includes steel reinforcement cage (1) and a plurality of group's connecting piece (2), its characterized in that: the reinforcement cage (1) comprises a plurality of groups of vertically arranged square frames (11) and ribs (12) which are fixedly connected with four corners of each square frame (11) and are arranged in parallel, the extending direction of each rib (12) is perpendicular to the plane where each square frame (11) is located, a concrete mortar layer (3) wraps the periphery of the reinforcement cage (1), and each connecting piece (2) is connected with the reinforcement cage (1) and extends out of the upper end face of the reinforcement cage (1).

2. The large-span high-strength beam structure according to claim 1, wherein: and cross-connected counter-pulling steel bars (111) are fixed on two groups of diagonal lines of the square frame (11), and the connection points of the two groups of counter-pulling steel bars (111) are positioned at the central symmetry point of the square frame (11).

3. A large-span high-strength beam structure according to claim 2, wherein: the connection points of the two groups of counter-pulling steel bars (111) on the square frame (11) are positioned on the same horizontal straight line, and horizontally arranged reinforcing steel bars (112) are fixedly connected between the connection points on the square frame (11).

4. The large-span high-strength beam structure according to claim 1, wherein: the upper end and the lower end of the front vertical end face and the lower end of the rear vertical end face of each square frame (11) in the extending direction are respectively fixed with a first threaded rod (13) with a horizontally arranged axis, the front vertical end face and the rear vertical end face of each square frame (11) in the extending direction are respectively provided with a first frame body (131), the periphery of each first frame body (131) is provided with a jack (1311) which is right opposite to each first threaded rod (13), and each first threaded rod (13) is inserted into the jack (1311) at the corresponding position and is screwed with a fastening nut (1312).

5. The large-span high-strength beam structure according to claim 4, wherein: the first frame body (131) is rectangular, and first protective ribs (132) which are in cross connection are fixed on two groups of diagonal lines of the first frame body (131).

6. The large-span high-strength beam structure according to claim 1, wherein: second threaded rods (14) with vertical axes are fixed at the front ends and the rear ends of the upper vertical end surfaces and the lower vertical end surfaces of the square frames (11) in the extending direction, second frame bodies (141) are arranged on the upper horizontal end surfaces and the lower horizontal end surfaces of the square frames (11) in the extending direction, insertion holes (1311) which are opposite to the second threaded rods (14) are formed in the peripheral edges of the second frame bodies (141), and the second threaded rods (14) are inserted into the insertion holes (1311) in the corresponding positions and are screwed with fastening nuts (1312).

7. The large-span high-strength beam structure according to claim 6, wherein: the second frame body (141) is rectangular, and second protective ribs (142) which are connected in a cross mode are fixed on two groups of diagonal lines of the second frame body (141).

8. The large-span high-strength beam structure according to claim 1, wherein: the connecting piece (2) comprises a shaft body (21) and a disc (22), the shaft body (21) is vertically fixed with an upper end frame of the square frame (11), the disc (22) is fixed with an upper end face of the shaft body (21), a plurality of groups of through holes (221) are formed in the upper end face of the disc (22) in a penetrating mode, and the through holes (221) are distributed around the axis of the disc (22) in an equiangular and circumferential mode.

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