CN217204165U - Assembled anchor rod frame beam - Google Patents
Assembled anchor rod frame beam Download PDFInfo
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- CN217204165U CN217204165U CN202220930303.3U CN202220930303U CN217204165U CN 217204165 U CN217204165 U CN 217204165U CN 202220930303 U CN202220930303 U CN 202220930303U CN 217204165 U CN217204165 U CN 217204165U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The utility model belongs to the field of roadbed slope protection construction, in particular to an assembly type anchor rod frame beam; a plurality of frame beams are spliced into a square grid frame distributed in an array mode, the beams are connected through concrete pouring blocks at the positions of frame nodes, and the concrete pouring blocks are connected with anchor rods; digging a groove on the slope surface of the existing side slope, wherein a mortar leveling layer is arranged at the bottom of the groove; the frame beam is embedded into the slope surface and is connected with the existing slope rock mass into a whole, the frame beam comprises a precast beam and a cast-in-place beam, main ribs in the precast beam body extend outwards, the main ribs are welded and connected with reinforcing bars of a concrete pouring block, a groove is used as a die cavity of the cast-in-place beam, and grouting holes are reserved in the top surface of the precast beam body; the frame structures of the assembled anchor rod frame beams are all processed in advance in a prefabrication factory, so that the processing precision and quality of the frame beams can be greatly improved; meanwhile, the assembly type anchor rod frame beam can be quickly installed, the installation process is simple to operate, and the purposes of economy and practicability can be achieved in the slope protection construction.
Description
Technical Field
The utility model belongs to road bed side slope protection construction field, concretely relates to assembled stock frame roof beam.
Background
Along with the rapid development of the traffic construction in China, the number of public and railway side slope protection construction is more and more, in the side slope protection construction, anchor rod frame beams are mostly adopted in a construction site, and as a side slope active protection structure, the anchor rod frame beams mainly play a role in the pre-stressed anchor rods for drilling, grouting and anchoring natural rock-soil bodies and the concrete frame beams to ensure the stability of the side slopes. Therefore, the assembled concrete anchor rod frame beam which can be assembled quickly, has low construction cost investment and is convenient for safety risk management and control of a construction site is needed to be designed.
In the prior art, the invention application with the publication number of CN108442391A discloses an assembly type frame beam anchor cable supporting structure, which comprises an assembly type frame beam, a prestressed anchor cable, soil nails uniformly distributed on a supporting surface layer and a soil dressing spray-seeding surface; the assembly type frame beam consists of a plurality of prefabricated cross beams which are mutually connected, upper through long reinforcing steel bars and lower through long reinforcing steel bars are arranged inside the cross beam and the vertical beam of each prefabricated cross beam, lifting hooks and fixing reinforcing steel bars are pre-embedded at two ends of the cross beam and the vertical beam, and an anchor cable hole is formed in the center of each prefabricated cross beam; the upper through long steel bar joints between the prefabricated cross beams are mutually connected through a mechanical connecting joint, the lower through long steel bar joints are mutually connected through a mechanical connecting joint, and concrete is poured at the connecting part between the prefabricated cross beams to form a whole; the prestressed anchor cable passes through the anchor cable hole and is fixed on the prefabricated cross beam by an anchorage device, and a lifting hook on the prefabricated cross beam is connected with the anchor cable hole by a sling soil nail; the temporary fixing steel nails are positioned on the supporting surface layer and are arranged on two sides of the cross beam and the vertical beam, the fiber mesh cloth is arranged between the prefabricated cross beams, and the foreign soil spraying surface is arranged on the fiber mesh.
The prefabricated cross beam in the assembly type frame beam anchor cable supporting structure is connected with the side slope through the anchor cable at the center and the lifting hooks at the beam ends, the prefabricated cross beam is not effectively connected with the side slope, the gravity of the prefabricated cross beam body is applied to the anchor cable and the soil nails, and the overall supporting effect of the supporting system is reduced. And the prefabrication process of the cross beam is complicated, and the cross beam occupies the space of a carriage during transportation. The cross beam is formed by combining four beams, has a heavy self weight, and has higher requirements on hoisting machinery in field hoisting. Therefore, the prefabricated cross beam has poor practicability.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a processing is convenient, the cost drops into low, the workman's installation of being convenient for, can ensure the safe assembled stock frame roof beam of site operation.
In order to achieve the purpose, the utility model provides an assembly type anchor rod frame beam, a plurality of frame beams are spliced into a square grid frame distributed in an array, the beams are connected with each other through concrete pouring blocks at the nodes of the frame, and the concrete pouring blocks are connected with an anchor rod; digging a groove on the slope surface of the existing slope, wherein the size of the groove is matched with that of the frame beam, and a mortar leveling layer is arranged at the bottom of the groove; the frame beam embedded slope is connected with the existing slope rock mass into a whole, the frame beam comprises a prefabricated beam and a cast-in-place beam, a main rib in the prefabricated beam body extends outwards, the main rib is welded with a reinforcing rib of a concrete pouring block, a groove is used as a die cavity of the cast-in-place beam, a stirrup in the prefabricated beam body extends into the groove, a grouting hole is reserved in the top surface of the prefabricated beam body, a through expansion joint is arranged on the frame beam, and asphalt hemp bars are filled in the full section of the joint.
Furthermore, the precast beam is divided into a precast beam and a precast longitudinal beam, the lower beam edge of the top surface of the precast beam body is provided with a water retaining strip, the two side beam edges of the top surface of the precast longitudinal beam body are provided with water retaining strips, and the bevel edge protruding from the top surface of the concrete pouring block connects the water retaining strips on the two sides of the corner of the frame node in a sealing manner to form a water diversion line from top to bottom.
Furthermore, the bottom surface of the precast beam body is concave inwards and is embedded with the concave-convex part of the cast-in-place beam.
Further, the welding length of the main reinforcement of the precast beam and the reinforcing bar of the concrete pouring block is greater than or equal to 10 cm.
Further, the beam end of the precast beam is provided with a rough surface.
Further, the frame node spacing is 3 m.
Furthermore, a through expansion joint is arranged on each three-lattice frame beam, and the width of the through expansion joint is 2 cm.
Furthermore, a hoisting hole is reserved in the precast beam.
Compared with the prior art, the utility model has the advantages that:
the utility model provides an assembled stock frame roof beam is applied to road bed slope protection construction, is different from the current construction method, and the frame construction of assembled stock frame roof beam all processes in advance at the prefabrication factory, can improve frame roof beam machining precision and quality greatly; meanwhile, the assembly type anchor rod frame beam can be quickly installed, the installation process is simple to operate, and the purposes of economy and practicability can be achieved in the slope protection construction.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic sectional view taken along line I-I in FIG. 1.
FIG. 3 is a schematic sectional view taken along line II-II in FIG. 1.
Fig. 4 is a schematic view illustrating connection of precast girders to concrete cast blocks.
Fig. 5 is a schematic cross-sectional view of a vertical precast beam.
Fig. 6 is a schematic cross-sectional view of a transverse precast beam.
In the figure: 1-a frame beam; 1.1-water bar; 1.2-precast beam; 1.3-cast-in-place beam; 1.4-grouting holes; 1.5-main reinforcement; 1.6-stirrup; 2-anchor rod; 3-pouring concrete blocks; 4-penetrating the expansion joint.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
As shown in fig. 1 and 4; the utility model provides an assembled stock frame roof beam, a plurality of frame roof beam 1 splices into the square grid frame of array distribution, is connected through the concrete placement piece 3 of frame node between roof beam and the roof beam, and concrete placement piece 3 is connected with stock 2, and stock 2 is used for consolidating rock mass or soil body, ensures stock frame roof beam overall structure stable. The concrete pouring blocks 3 are pumped into the mold by a pump truck pump and are used for pouring the frame beam 1 and the anchor rod 2 into an integral structure so as to form a complete anchor rod frame beam stress structure. Digging a groove on the slope surface of the existing slope, wherein the size of the groove is matched with that of the frame beam 1, and a mortar leveling layer is arranged at the bottom of the groove; the frame beam 1 is embedded into a slope and is connected with an existing slope rock body into a whole, the frame beam 1 comprises a precast beam 1.2 and a cast-in-place beam 1.3, the precast beam 1.2 is processed in a precast processing factory, a main rib 1.5 in the precast beam 1.2 extends outwards, the main rib 1.5 is welded with a reinforcing rib of a concrete pouring block 3, a groove is used as a die cavity of the cast-in-place beam 1.3, a hoop rib 1.6 in the precast beam 1.2 extends into the groove, a grouting hole 1.4 is reserved in the top surface of the precast beam 1.2, the cast-in-place beam 1.3 is poured with self-compacting concrete through the grouting hole, each three-lattice frame beam 1 is provided with a through expansion joint 4, the width of the through expansion joint 4 is 2cm, and the full section in the gap is filled with asphalt hemp.
The precast beam 1.2 is divided into a precast beam and a precast longitudinal beam, the lower beam edge of the top surface of the precast beam body is provided with a water retaining strip 1.1, the two side beam edges of the top surface of the precast longitudinal beam body are provided with water retaining strips 1.1, and the water retaining strips 1.1 on the two sides of the corner of the frame node are hermetically connected by the inclined edge protruding from the top surface of the concrete pouring block 3 to form a water diversion line from top to bottom.
The welding length of the main reinforcement 1.5 of the precast beam 1.2 and the reinforcing bars of the concrete pouring block 3 is more than or equal to 10 cm.
The construction of the assembly type anchor rod frame beam specifically comprises the following parts:
1. prefabricated beam
The hoisting hole is reserved in the precast beam 1.2, and the precast beam 1.2 beam body is precast in a centralized manner in a small precast plant, so that the hoisting of the components is facilitated, and the appearance damage in the long-distance transportation is reduced. The length of a single section of the precast beam 1.2 is 205cm, the width is 35cm, and the thickness is 25 cm. The main rib 1.5 in the beam body adopts phi 25 HRB400 deformed steel bar, and the length of the main rib is 320 cm; the stirrups in the beam body are 10 in total and are made of phi 8 HPB300 round steel with the length of 128.6 cm. The net protective layer of the steel bar is 3.1 cm. Grouting holes with the diameter of 10cm are reserved on one side of the top surface of the precast beam 1.2, and the distance is 60 cm.
When in prefabrication, the beam end of the precast beam 1.2 is roughened or chiseled or treated by exposed aggregate rough surface to strengthen the connection with cast-in-place concrete.
2. Anchor rod for construction slope
After finishing the slope surface finishing, cross-releasing anchor hole positions by using ropes according to the design requirement, arranging slope surface drainage grooves according to the design requirement, drilling holes and installing anchor rods 2, wherein the anchor rods 2 are made of HRB400 threaded steel with the diameter of 32.
3. Excavating frame beam groove
Before the frame beam is assembled, the wire is hung and lofted according to the design type and the size, and a groove is dug, wherein the size of the groove is determined according to the size of the frame beam. The width of the trench is not more than 5cm of the width of the corresponding prefabricated part, and the depth of the trench is not more than 5cm of the buried thickness of the corresponding frame beam.
And backfilling and leveling the trench bottom overexcavation part by using M15 mortar before assembling the precast beam 1.2, wherein the thickness of a leveling layer is about 5 cm. Gaps on two sides between the prefabricated part and the groove are filled with M15 mortar.
4. Prefabricated component installation
The precast beam 1.2 is installed by adopting a manual matching crane. The length of a single section of the member is 205cm, and 3 hoisting holes are reserved. During hoisting, a twisted steel bar with the length of 2.1m and the diameter of 25 mm is selected as a hoisting crossbeam, the position of a hoisting hole of a corresponding component of the crossbeam is hoisted by 3 steel wire ropes with the same length, and finally, a steel wire rope penetrates through a crane hook and then is symmetrically fixed on the crossbeam. Before the component is installed, the wire must be hung in place, so that the linear shape of the component is ensured to be straight. After the precast beam 1.2 is in place, the side faces of the components are symmetrically reinforced by adopting square timbers, and the top faces are hoisted and reinforced by adopting iron wires.
5. Self-grouting and self-compacting concrete
Precast beam 1.2 roof beam body bottom surface indent and cast-in-place roof beam 1.3 unsmooth gomphosis fill self-compaction concrete through grout hole 1.4 and pour through grout hole 1.4 when pouring self-compaction concrete, should take the shutoff measure, ensure that the concrete fills closely knit, must not have the cavity in the frame roof beam body.
6. Node steel bar installation
The steel bars of the prefabricated part are connected at the joints of the frame in a welding mode, and the welding mode adopts double-side welding. During welding, the end parts of the two steel bars are folded to one side in advance, the axes of the two steel bars are kept consistent, and the length of a welding seam of a welding joint is 10 cm.
7. Cast-in-place part of node
The distance between the frame nodes is 3m, the templates are reinforced by self-made steel templates and symmetrical tie bars, and the cast-in-place concrete of the nodes is poured from a low position to a high position by adopting a pump truck or a crane for operation. And (5) after the initial setting of the concrete, moisturizing and covering the geotextile for maintenance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides an assembled stock frame roof beam which characterized in that: the frame beams (1) are spliced into square grid frames which are distributed in an array mode, the beams are connected through concrete pouring blocks (3) at positions of nodes of the frames, and the concrete pouring blocks (3) are connected with the anchor rods (2); a groove is dug on the slope surface of the existing slope, the size of the groove is matched with that of the frame beam (1), and a mortar leveling layer is arranged at the bottom of the groove; the frame beam (1) is embedded into a slope and is connected with an existing slope rock body into a whole, the frame beam (1) comprises a precast beam (1.2) and a cast-in-place beam (1.3), a main rib (1.5) in the beam body of the precast beam (1.2) extends outwards, the main rib (1.5) is welded with a reinforcement of a concrete pouring block (3), a groove is used as a die cavity of the cast-in-place beam (1.3), a stirrup (1.6) in the beam body of the precast beam (1.2) extends into the groove, a grouting hole (1.4) is reserved in the top surface of the beam body of the precast beam (1.2), a through expansion joint (4) is arranged on the frame beam (1), and a full section in the groove is filled with asphalt reinforcement.
2. The assembled anchor-frame beam of claim 1, wherein: precast beam (1.2) divide into precast beam and precast longeron, the lower part roof beam limit of precast beam roof beam body top surface is provided with breakwater (1.1), the both sides roof beam limit of precast longeron roof beam body top surface is provided with breakwater (1.1), the water bar (1.1) of frame node turning both sides is closed connection to constitute from last diversion line to down with the convex hypotenuse of concrete placement piece (3) top surface.
3. The assembled anchor-frame beam of claim 2, wherein: the bottom surface of the beam body of the precast beam (1.2) is concave inwards and is embedded with the cast-in-place beam (1.3) in a concave-convex mode.
4. The assembled anchor-frame beam of claim 1, wherein: the welding length of the main reinforcement (1.5) of the precast beam (1.2) and the reinforcing bars of the concrete pouring block (3) is more than or equal to 10 cm.
5. The assembled anchor-frame beam of claim 1, wherein: the beam end of the precast beam (1.2) is provided with a rough surface.
6. The assembled anchor-frame beam of claim 1, wherein: the distance between the frame nodes is 3 m.
7. The assembled anchor-frame beam of claim 1, wherein: and each three grids of the frame beam (1) are provided with a through expansion joint (4), and the width of the through expansion joint (4) is 2 cm.
8. The assembled anchor-frame beam of claim 1, wherein: and hoisting holes are reserved in the precast beams (1.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220930303.3U CN217204165U (en) | 2022-04-21 | 2022-04-21 | Assembled anchor rod frame beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220930303.3U CN217204165U (en) | 2022-04-21 | 2022-04-21 | Assembled anchor rod frame beam |
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| Publication Number | Publication Date |
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| CN217204165U true CN217204165U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220930303.3U Active CN217204165U (en) | 2022-04-21 | 2022-04-21 | Assembled anchor rod frame beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117364807A (en) * | 2023-12-08 | 2024-01-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed slope implantation type framework protection structure and construction method |
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2022
- 2022-04-21 CN CN202220930303.3U patent/CN217204165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117364807A (en) * | 2023-12-08 | 2024-01-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed slope implantation type framework protection structure and construction method |
| CN117364807B (en) * | 2023-12-08 | 2024-03-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed slope implantation type framework protection structure and construction method |
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