CN211257290U - Mortise and tenon type beam column protection node - Google Patents
Mortise and tenon type beam column protection node Download PDFInfo
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- CN211257290U CN211257290U CN201922050420.1U CN201922050420U CN211257290U CN 211257290 U CN211257290 U CN 211257290U CN 201922050420 U CN201922050420 U CN 201922050420U CN 211257290 U CN211257290 U CN 211257290U
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Abstract
The utility model belongs to the technical field of the assembled structure, especially, a mortise type beam column protection node is disclosed, the technical scheme of adoption: including beam column node and roof beam, beam column node is connected with the roof beam with mortise-tenon joint formula connection method, and the arrangement of reinforcement on roof beam and the beam column node is fixed through predetermined grout sleeve, and simultaneously in the concatenation department of roof beam and beam column node, it is fixed with roof beam and beam column node to run through the bolt that shears, the outer cladding of beam column node has the inoxidizing coating, the utility model discloses a beam column protection node, simple installation, the security is high, can not destroy in the twinkling of an eye when suffering unexpected impact or great live load.
Description
Technical Field
The utility model belongs to the technical field of the assembled structure, especially, relate to a mortise type beam column protection node.
Background
With the continuous perfect issuing of the current assembly type policy documents in China, dry construction methods of prefabricated components in factories and field installation are encouraged in various cities; the preset node is connected with the preset member on site, so that the construction period can be shortened, the design and production are promoted to be refined, the overall quality of the structure is improved, harmful gas, dust and noise pollution are reduced, the assembly rate is increased, the national call is responded, and the on-site labor cost can be saved. The strong node and the weak member are reinforced in the structural design, and the safety of the node is undoubtedly a safety barrier of the whole building system. The components and nodes with diversified designs, modernized functions, factory manufacturing, construction and assembly, optimized time and safety and stability can better meet the increasing requirements of assembly type projects.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art exists not enough, provides an easy and simple to handle, and the high assembled beam column node of security can not destroy in the twinkling of an eye when suffering unexpected impact or great dynamic load.
In order to solve the technical problem, the utility model discloses a technical scheme does: the tenon-and-mortise type beam-column protection node comprises a beam-column node and a beam, wherein the beam-column node is connected with the beam in a tenon-and-mortise type connection method, reinforcing bars on the beam-column node and the beam-column node are fixed through a preset grouting sleeve, a shear-resistant pin is penetrated through a splicing part of the beam-column node and the beam-column node to fix the beam-column node and the beam, and a protective layer is coated on the outer layer of the beam-column node.
The end part of the beam column joint is provided with a section of overhanging beam, the beam end is in a convex shape, the length of the overhanging beam is less than one fourth of the beam span, and the grouting sleeve is arranged at the position of the steel bar connecting fracture of two shoulders of the overhanging beam.
The splicing port of the beam is arranged to be in a notch shape corresponding to the beam, and meanwhile, a grouting sleeve is arranged at the connection fracture of the steel bar; wherein the length of the notch is more than 100mm and less than 500 mm.
The grouting sleeve is a half grouting sleeve, the inner diameter of the grouting sleeve is matched with the size of the reinforcing steel bar, and the anchoring length of the reinforcing steel bar at the grouting connecting end is more than 8 times of the diameter of the reinforcing steel bar; the tensile strength of the sleeve is not less than 600Mpa, the elongation is not less than 5%, the allowable deviation of the outer diameter is +/-1.5 mm, and the allowable deviation of the wall thickness is +/-1.2 mm.
The splicing parts of the beam and the beam column node are prefabricated with holes, and after the beam and the beam column node are spliced, the shear-resistant pin bolt is inserted into the holes for connection and is densely poured by high-strength micro-expansion powdered concrete.
The holes are not smaller than 1.1 times of the diameter of the reinforcing steel bar and not larger than 2 times of the diameter of the reinforcing steel bar, the distance between the holes is not larger than 200mm in the horizontal direction of the beam, and is not larger than 100mm in the height direction of the beam.
The protective layer comprises an angle fixing rod, an impact-resistant rod, an outer steel wire mesh, an inner thin steel plate, a flexible filling material and anchoring nails, the impact-resistant rod and the flexible filling material are combined through extrusion of the outer steel wire mesh and the inner thin steel plate, and the outer steel wire mesh and the inner thin steel plate are connected and fixed through the anchoring nails.
The diameter of the corner fixing rod is smaller than that of the impact resistant rod, each column corner consists of four corner fixing rods and one impact resistant rod, column sides are arranged in a tangent mode through the impact resistant rods, the corner fixing rods and the impact resistant rods on the column sides are separated through anchoring nails, and the anchoring nails are arranged between the impact resistant rods on the column sides every two or three.
The angle fixing rod and the impact resistant rod are made of energy-consuming impact resistant materials such as semi-rigid foam plastics, rubber rods and the like.
The flexible filler is made of non-combustible or flame-retardant heat-insulating materials such as rock wool and extruded polystyrene boards.
Compared with the prior art, the utility model following beneficial effect has.
1. The utility model provides a new assembly type beam column node connection mode through mortise and tenon type connection, and the mode of concave-convex splicing and shear pin bolt makes the on-site installation more efficient and simple; meanwhile, the concave-convex part for beam column splicing extends outwards, so that the plastic hinge can be effectively moved outwards when the deformation and the damage are caused under the earthquake action, and a strong node and a weak member are better formed to protect the node.
2. The outer column protection layer at the beam column joint effectively utilizes the characteristic combination of materials, can buffer accidental external impact load, and forms a three-way constraint effect on the concrete column in the core area by the inner thin steel plate, thereby further improving the bearing capacity and reducing the deformation; in addition, due to the effect of the flexible filling material, the protective layer can be used as a protective layer, and meanwhile, the phenomenon of thermal bridge at the end of autumn and at the beginning of winter can be avoided, so that the node is protected better.
3. In special buildings, such as military bases, battlefield hospitals, prisons, important political centers, large petroleum gas storage and other flammable and explosive buildings, the mortise and tenon joint has higher practicability and durability; if the outer steel wire mesh is replaced by the steel plate, the impact-resistant rod and the angle fixing rod are replaced by the steel pipe, and the protection strength can be effectively increased by replacing materials on the basis of not changing the original structural design and type.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a plan view of a tenon-and-mortise type assembled beam-column joint.
Fig. 2 is an elevation view of a beam male-female splice.
Fig. 3 is a plan view of an outer protective layer of a pillar.
Fig. 4 is a diagrammatic representation of the outer protective layer at the corner of a pillar.
In the figure: 1 is a beam column node; 2 is a protective layer; 21 is an angle fixing rod; 22 is an impact resistant bar; 23 is an outer steel wire mesh; 24 is an inner thin steel plate; 25 is flexible filler; 26 is an anchoring nail; 3, a grouting sleeve; 4 is a reinforced concrete beam; 5, reinforcing bars are arranged on the beam; and 6, a shear pin bolt.
Detailed Description
As shown in fig. 1-4, a mortise-tenon type beam-column protection node, wherein a beam-column node 1 is connected with a beam 4 by a mortise-tenon type connection method, wherein a section of an overhanging beam is reserved at the end part of the beam-column node, the length of the overhanging beam is not larger than one fourth of the span of the beam, the end of the overhanging beam is made into a convex shape, a semi-grouting sleeve 3 is embedded in a reinforcing steel bar fracture of the beam end, a port part of the beam 4 connected with the beam-column node 1 is made into a concave shape, and the semi-grouting sleeve 3 is embedded in the concave reinforcing steel bar end.
As shown in fig. 2, after the beam 4 and the beam-column joint 1 are spliced and installed, a shear pin 6 is inserted into a reserved hole at the beam waist, and high-strength micro-expansion powdered concrete is used for tamping; meanwhile, grouting is carried out on the sleeve, in order to prevent water consumption deviation possibly occurring in construction, reduce the size of a joint and the using amount of grouting material and improve construction efficiency and connection quality, the steel bars with the diameter of less than 25mm adopt 85 Mpa-grade grouting material with high percentage, the steel bars with the diameter of more than 25mm adopt 110 Mpa-grade grouting material with slightly low percentage, the purchased sleeve needs rust prevention measures, and the anchoring length of the steel bars at the grouting connection end is not more than 8 times of the diameter of the steel bars; the tensile strength of the sleeve is not less than 600Mpa, the elongation is not less than 5%, the allowable deviation of the outer diameter is +/-1.5 mm, and the allowable deviation of the wall thickness is +/-1.2 mm; grouting operation is not suitable to be carried out when the construction environment temperature is lower than 5 ℃; during grouting, the slurry is required to overflow out of the position of a slurry outlet; after grouting, the member must not be impacted or vibrated until the compressive strength reaches 35MPa, and the member disturbance prevention time is properly prolonged at a low temperature.
As shown in fig. 3-4, a protective layer 2 is added outside the beam-column connection point, the protective layer 2 is formed by connecting a galvanized steel wire mesh 21 with a wire diameter of 3mm and a hole diameter of 10x10mm with an inner thin steel plate 24 with a thickness of 1mm through anchor nails 26, then filling prefabricated large-diameter rubber bars 22 and corner small-diameter rubber bars 21 in the protective layer, and filling rock wool 25 in gaps, wherein the corner small-diameter rubber bars 21 and the column side large-diameter rubber bars 22 are separated by the anchor nails 26, and every two or three anchor nails 26 are arranged between the column side large-diameter rubber bars 22.
After the outer protective layer 2 of the column is fixed, the outer protective layer can be directly used as a template to pour concrete in the core area of the node, and the column template does not need to be disassembled after forming. Because the outer layer of the beam-column joint 1 is a steel wire mesh, the later decoration can be directly plastered.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The utility model provides a mortise type beam column protection node which characterized in that: the beam-column joint comprises beam-column joints (1) and beams, wherein the beam-column joints (1) are connected with the beams in a mortise-tenon connection method, reinforcing bars on the beams and the beam-column joints (1) are fixed through preset grouting sleeves (3), and meanwhile, shear-resistant pins (6) are penetrated through splicing positions of the beams and the beam-column joints (1) to fix the beams and the beam-column joints (1), and protective layers (2) are coated on the outer layers of the beam-column joints (1).
2. The mortise type beam-column protection node according to claim 1, characterized in that: the end part of the beam column joint (1) is provided with a section of overhanging beam, the beam end is in a convex shape, the length of the overhanging beam is less than one fourth of the beam span, and the joints of the steel bars of the two shoulders of the overhanging beam are provided with grouting sleeves (3).
3. The mortise type beam-column protection node according to claim 1, characterized in that: the splicing port of the beam is arranged to be in a notch shape corresponding to the beam, and a grouting sleeve (3) is arranged at the connection fracture of the steel bar; wherein the length of the notch is more than 100mm and less than 500 mm.
4. The mortise type beam-column protection node according to claim 1 or 3, characterized in that: the grouting sleeve (3) is a half grouting sleeve (3), the inner diameter of the grouting sleeve (3) is matched with the size of the reinforcing steel bar, and the anchoring length of the reinforcing steel bar at the grouting connecting end is more than (8) times of the diameter of the reinforcing steel bar; the tensile strength of the sleeve is not less than 600Mpa, the elongation is not less than 5%, the allowable deviation of the outer diameter is +/-1.5 mm, and the allowable deviation of the wall thickness is +/-1.2 mm.
5. The mortise type beam-column protection node according to claim 4, characterized in that: the splicing parts of the beam and the beam column node (1) are prefabricated with holes, and after the beam and the beam column node (1) are spliced, the shear pin bolts (6) are inserted into the holes for connection and are densely poured by high-strength micro-expansion powdered concrete.
6. The mortise type beam-column protection node according to claim 5, characterized in that: the holes are not smaller than 1.1 times of the diameter of the reinforcing steel bar and not larger than 2 times of the diameter of the reinforcing steel bar, the distance between the holes is not larger than 200mm in the horizontal direction of the beam, and is not larger than 100mm in the height direction of the beam.
7. The mortise type beam-column protection node according to claim 1, characterized in that: the protective layer (2) comprises angle fixing rods (21), impact-resistant rods (22), an outer steel wire net (23), inner thin steel plates (24), flexible fillers (25) and anchoring nails (26), the impact-resistant rods (22) and the flexible fillers (25) are combined in a pressing mode through the outer steel wire net (23) and the inner thin steel plates (24), and the outer steel wire net (23) and the inner thin steel plates (24) are fixedly connected through the anchoring nails (26).
8. The mortise type beam-column protection node according to claim 7, characterized in that: the diameter of the angle fixing rod (21) is smaller than that of the impact-resistant rod (22), each column corner consists of four angle fixing rods (21) and one impact-resistant rod (22), column sides are tangentially distributed and arranged by the impact-resistant rods (22), the angle fixing rods (21) and the column side impact-resistant rods (22) are separated by the anchoring nails (26), and the anchoring nails (26) are arranged between the column side impact-resistant rods (22) at intervals of two or three.
9. The mortise type beam-column protection node according to claim 7, characterized in that: the angle fixing rod (21) and the anti-impact rod (22) are made of semi-rigid foam plastics or rubber rods.
10. The mortise type beam-column protection node according to claim 7, characterized in that: the flexible filling material (25) adopts rock wool or extruded polystyrene boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050420.1U CN211257290U (en) | 2019-11-25 | 2019-11-25 | Mortise and tenon type beam column protection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050420.1U CN211257290U (en) | 2019-11-25 | 2019-11-25 | Mortise and tenon type beam column protection node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211257290U true CN211257290U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922050420.1U Active CN211257290U (en) | 2019-11-25 | 2019-11-25 | Mortise and tenon type beam column protection node |
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| Country | Link |
|---|---|
| CN (1) | CN211257290U (en) |
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- 2019-11-25 CN CN201922050420.1U patent/CN211257290U/en active Active
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