CN116122308A - Prefabricated assembled grid beam slope protection structure and construction method thereof - Google Patents

Abstract

The invention discloses a prefabricated assembled lattice beam slope protection structure and a construction method thereof, belonging to the technical field of construction engineering. The lattice beam slope protection structure is composed of several prefabricated reinforced concrete lattice beams and connecting plates. The prefabricated reinforced concrete lattice Beams are divided into prefabricated longitudinal beams and prefabricated beams. The included angle between the longitudinal beam and the connecting plate is a right angle, the bottom of the longitudinal beam is an integrated connecting plate, the top of the longitudinal beam is provided with an integrated inserting plate, and the bottom of the connecting plate is designed to be connected with the inserting plate. coincident longitudinal alignment slots, the connection between the longitudinal beam and the longitudinal beam is combined with a crossbeam; the left and right ends of the crossbeam are designed with grooves and protrusions corresponding to the connection; the present invention uses The cross connection structure is connected, and the limit end of the end is used to prevent the displacement of the longitudinal beam and beam after assembly, and ensure the horizontal and vertical stability during connection to ensure the slope protection effect.

Description

A prefabricated and assembled lattice beam slope protection structure and its construction method

technical field

The invention belongs to the technical field of construction engineering, and in particular relates to a prefabricated and assembled lattice beam slope protection structure and a construction method thereof.

Background technique

Lattice reinforcement technology is a slope reinforcement technology that uses mortar block stones, cast-in-place reinforced concrete or prefabricated prestressed concrete to protect the slope surface, and fixes it with anchor rods or anchor cables.

Most of the current lattice girder slope protection is a one-piece pouring structure, and the pouring structure lattice girder slope protection needs to be constructed on site, which takes a long period and is difficult;

However, in the existing prefabricated and assembled lattice beam slope protection patents, only prefabrication and assembly are considered. If prefabrication and assembly are realized, the stability will inevitably be reduced, especially the single structure of the joint, which will greatly reduce the stability of the joint. For this reason We propose a prefabricated lattice beam slope protection structure and its construction method.

Contents of the invention

The object of the present invention is to provide a prefabricated and assembled lattice beam slope protection structure and its construction method, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention adopts the following technical solution: a prefabricated and assembled grille slope protection structure, the lattice beam slope protection structure is composed of several longitudinal beams and connecting plates, and the clip between the longitudinal beams and the connecting plates The angle is a right angle, the bottom of the longitudinal beam is integrally connected with a connecting plate, the top of the longitudinal beam is provided with an integrated insertion plate, and the bottom of the connecting plate is designed with a longitudinal alignment groove matching the insertion plate. A crossbeam is connected to the junction of the longitudinal beam and the longitudinal beam in combination.

Further, the two ends of the cross beam have opposite protrusions, and both ends of the cross beam are provided with transverse alignment grooves, and the left and right ends of the cross beam are reserved for inter-beam connecting steel bars connecting the other side of the cross beam.

Further, the connection between the longitudinal beam and the cross beam is poured with concrete through a reserved hole to form cross connectors on the front and rear sides, and the four ends of the cross connector have stoppers, and the cross-sections of the stoppers are predetermined. shape.

Further, the predetermined shape is a horizontal isosceles trapezoid.

Further, anchor holes are reserved in the middle of the cross connector and the connecting plate, and the anchor holes are used for fixing anchor rods.

Further, through holes connecting the two sides are reserved inside the longitudinal alignment groove.

Further, a prefabricated assembled lattice beam slope protection structure and its construction method include the following steps:

A. After the prefabricated parts are prefabricated in the prefabrication factory and transported to the site, according to the requirements of the construction drawing, the measurement and positioning are carried out, and the slope is leveled and constructed with anchor rods or anchor cables;

B. Hang the longitudinal beam first, and then assemble the adjacent longitudinal beams, specifically inserting the insert plate at the top of the lower longitudinal beam to the inner side of the longitudinal alignment groove of the connecting plate at the bottom of the upper longitudinal beam;

C. The crossbeams on both sides are respectively inserted to the left and right sides of the connecting plate, and the crossbeams on the left and right sides are connected through the connecting steel bars between the beams. The connection methods of the steel bars can be tied, lapped, welded or mechanical sleeves;

D. Tension and lock the anchor rod or anchor cable;

E. Concrete is poured through the reserved holes at the junction of the longitudinal beam and the beam, and cross connectors are formed on the front and rear sides of the connecting plate. The cross connectors form cross connectors with limiting ends according to the shape of the through holes and the transverse alignment groove ;

F. After the grout of the cross connector at the connection node reaches a certain strength, the anchor rod can be stretched with the anchor rod tensioning machine, and the anchor can be sealed after the tension is completed;

G. Repeat the above steps and assemble in sequence.

Compared with the prior art, the beneficial effects of the present invention are:

1. This design uses a cross connection structure at the connection node to connect, cooperate with the limit end at the end to prevent the displacement of the longitudinal beam and beam after assembly, ensure the horizontal and vertical stability during connection, and ensure the slope protection effect.

2. The cross connector at the connection node is formed by pouring concrete. On the one hand, it reduces the difficulty of assembly, reduces the accuracy of prefabrication, and improves the fault tolerance rate. At the same time, the connection is fixed by pouring. The degree of fit between parts increases stability.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

Fig. 1 is the structural representation of the assembly of the present invention;

Fig. 2 is a schematic diagram of an explosion structure of the present invention;

Fig. 3 is the schematic diagram of the enlarged structure of the A part of the present invention;

Fig. 4 is the structural representation of anchor rod of the present invention;

In the figure: 11, longitudinal beam; 12, connecting plate; 13, inserting plate; 14, longitudinal alignment groove; 15, through hole; 21, beam; 22, transverse alignment groove; 23, protrusion; 24, between beams Connecting steel bar; 31, cross connector; 32, limit end; 41, anchor hole; 42, anchor rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

With reference to Fig. 1-Fig. 4, a kind of technical scheme that the present invention proposes: a kind of prefabricated and assembled lattice girder slope protection structure, lattice girder slope protection structure is made up of several longitudinal beams 11 and connecting plate 12, between longitudinal beam 11 and connecting plate 12 The angle between them is a right angle, the bottom of the longitudinal beam 11 is integrally connected with the connecting plate 12, the top of the longitudinal beam 11 is provided with an integrated inserting plate 13, and the bottom of the connecting plate 12 is designed with a longitudinal alignment groove matching the inserting plate 13 14. The connection between the longitudinal beam 11 and the longitudinal beam 11 is combined with a crossbeam 21, wherein, both ends of the crossbeam 21 have opposite protrusions 23, and both ends of the crossbeam 21 are provided with a transverse alignment groove 22, and one side of the crossbeam The inner side of 21 is inserted with the inter-beam connecting steel bar 24 connecting the cross beam 21 on the other side.

Specifically, the joints of the longitudinal beam 11 and the crossbeam 21 are formed by pouring concrete into cross connectors 31 on the front and rear sides. The four ends of the cross connector 31 all have stoppers 32, and the cross-section of the stoppers 32 has a predetermined shape. The predetermined shape is a horizontal isosceles trapezoid, and its hypotenuse can prevent displacement. The cross connector 31 structure is used for connection at the joint, and the limit end 32 at the end is used to prevent displacement of the longitudinal beam 11 and cross beam 21 after assembly. , the horizontal and vertical stability are guaranteed during the connection, and the steel bars 24 are connected between the beams at the same time to increase the tensile capacity and ensure the slope protection effect.

Specifically, anchor holes 41 are reserved in the middle of the cross connector 31 and the connecting plate 12. The anchor holes 41 are used for fixing the anchor rod 42. The cross connector 31 at the joint is formed by pouring concrete through the reserved hole, which reduces the The difficulty of assembly can reduce the accuracy of prefabrication and improve the fault tolerance rate. At the same time, the connection is fixed by pouring. Compared with complete prefabricated assembly, it can increase the degree of fit between prefabricated components and increase stability.

Specifically, a through hole 15 communicating with both sides is reserved inside the longitudinal alignment groove 14 .

This embodiment also provides a prefabricated lattice beam slope protection structure and its construction method, including the following steps:

S1. After the prefabricated parts are prefabricated in the prefabrication factory and transported to the site, according to the requirements of the construction drawing, the measurement and positioning are carried out, and the slope is leveled and constructed with anchor rods 42 or anchor cables;

S2. Hang and release the longitudinal beam 11 first, and assemble the adjacent longitudinal beams 11, specifically inserting the insertion plate 13 at the top of the lower longitudinal beam 11 to the inner side of the longitudinal alignment groove 14 of the connecting plate 12 at the bottom of the upper longitudinal beam 11;

S3. The crossbeams 21 on both sides are respectively inserted to the left and right sides of the connecting plate 12, and the crossbeams on the left and right sides are connected through the connecting steel bars 24 between the beams. The connection methods of the steel bars 24 can be tied, lapped, welded or mechanically sleeved. ;

S4, tensioning and locking the anchor rod or the anchor cable;

S5. Concrete is poured through reserved holes at the connection between the longitudinal beam 11 and the cross beam 21, and cross connectors 31 are formed on the front and rear sides of the connecting plate 12. The cross connectors 31 are formed by the shape of the through hole 15 and the transverse alignment groove 22 A cross connector 31 with a limiting end 32;

S6. After the grout at the cross joint at the connection node reaches a certain strength, the bolt tensioning machine can be used to stretch the bolt, and after the tension is completed, the anchor is sealed;

S7. Repeat the above steps, assemble in order, and finally complete the assembly of the entire slope protection structure as shown in FIG. 1 .

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (7)

1. A prefabricated assembled lattice beam slope protection structure is characterized in that: the lattice beam slope protection structure is made up of several longitudinal beams (11) and connecting plates (12), and the longitudinal beams (11) and connecting plates (12) ) is a right angle, the bottom of the longitudinal beam (11) is integrally connected with a connecting plate (12), and the top of the longitudinal beam (11) has an integrated insert plate (13), and the connecting plate The bottom of (12) is designed with a longitudinal alignment groove (14) coincident with the insert plate (13), and the junction of the longitudinal beam (11) and the longitudinal beam (11) is combined with a crossbeam (21). 2. A prefabricated lattice beam slope protection structure according to claim 1, characterized in that: the two ends of the beam (21) have opposite protrusions (23), and the two ends of the beam (21) The ends are provided with transverse alignment grooves (22), and the inner side of one side beam (21) is inserted with inter-beam connecting steel bars (24) connecting the other side beam (21). 3. A kind of prefabricated assembled lattice beam slope protection structure according to claim 1, characterized in that: the junction of the longitudinal beam (11) and the crossbeam (21) forms cross connectors ( 31), the four ends of the cross connector (31) each have a limiting end (32), and the cross section of the limiting end (32) has a predetermined shape. 4. A prefabricated and assembled lattice beam slope protection structure according to claim 3, characterized in that: the predetermined shape is a horizontal isosceles trapezoid. 5. A prefabricated lattice beam slope protection structure according to claim 1, characterized in that: anchor holes (41) are reserved in the middle of the cross connector (31) and the connecting plate (12), so that The above-mentioned reserved anchor hole (41) is used for fixing the anchor rod (42). 6. The prefabricated lattice beam slope protection structure according to claim 1, characterized in that: the inner side of the longitudinal alignment groove (14) is reserved with a through hole (15) connecting both sides. 7. A construction method for a prefabricated lattice beam slope protection structure, characterized in that it comprises the following steps: A. After the prefabricated parts are prefabricated in the prefabricated factory and transported to the site, according to the requirements of the construction drawing, the measurement and positioning are carried out, and the slope is leveled and constructed with anchor rods (42) or anchor cables; B. Hang the longitudinal beam (11) first, and assemble the adjacent longitudinal beams (11), specifically inserting the insertion plate (13) at the top of the lower longitudinal beam (11) to the bottom connecting plate ( 12) inside the longitudinal alignment groove (14); C. The crossbeams (21) on both sides are respectively inserted to the left and right sides of the connecting plate (12), and the crossbeams on the left and right sides are connected through the connecting steel bars (24) between the beams. The connection method of the steel bars (24) can be tied and lapped Or welding or mechanical sleeve and other methods; D, the anchor rod (42) or the anchor cable are tensioned and locked; E. Concrete is poured through the reserved holes at the junction of the longitudinal beam (11) and the beam (21), and cross connectors (31) are formed on the front and rear sides of the connecting plate (12). (15) and the shape of the transverse alignment groove (22) form a cross connector (31) with a limiting end (32); F. After the slurry of the cross connection parts at the connection node reaches a certain strength, the bolt tensioning machine can be used to stretch the bolt, and after the tension is completed, the anchor is sealed; G. Repeat the above steps and assemble in sequence.

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