Fireproof plugging structure suitable for cable penetrating beam-column joint

Abstract

The invention discloses a fireproof plugging structure suitable for a cable penetrating beam column joint, and relates to the technical field of steel structure construction, the fireproof plugging structure comprises a steel column and a steel beam, the steel column and the steel beam are vertically intersected, the steel column and the steel beam are jointly provided with a pair of mounting holes, a structural inhaul cable is slidably mounted in each mounting hole, and the structural inhaul cable is fixedly connected with the steel column. Fireproof rock wool is jointly filled between the structural inhaul cable and the mounting hole. The structure further comprises a stabilizing assembly. The effects that fireproof rock wool is adopted for blocking, the fireproof requirement is met, and meanwhile construction is convenient can be achieved are achieved, and the problems that in the prior art, only fine sand is filled as a fireproof material, although the internal fireproof effect can be effectively achieved, a good fireproof effect cannot be achieved outside, and the fireproof effect cannot be achieved are solved. However, the common beam-column joint is limited in internal operation space, so that the construction of the fireproof coating cannot be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, and particularly relates to a fireproof plugging structure suitable for cable-passing beam-column joints. Background Art

[0002] With the diversification of building structure forms, cable structures are gradually applied to the field of building construction. Due to the relatively complex internal components of buildings, interference occurs between the stay cables and beam-column components, and it is necessary to cross-layer through the beam-column joints. The structural fire protection design requirements in the field of building construction are high, and fire protection construction needs to be carried out inside the joints.

[0003] After retrieval, the patent document with the publication number CN222161630U discloses a connection joint between a prefabricated light steel keel partition wall and a beam-column, including a beam-column body and a light steel keel partition wall. The light steel keel partition wall is in close contact with the beam-column body. Light steel keel nails are arranged at equal distances inside the light steel keel partition wall, and the light steel keel nails pass through the light steel keel partition wall and are nailed into the beam-column body. An alkali-resistant fiberglass mesh cloth is arranged on the surface of the light steel keel partition wall. For the fireproof structure of the connection joint between the prefabricated light steel keel partition wall and the beam-column, the light steel keel is used as the skeleton, and the mechanical stability is good. The main part is connected in a mechanical anchoring form. Compared with the traditional masonry method, the safety performance is more reliable. Through the cooperation of the T-shaped strip, the threaded column, the base rod, and the sliding piece, the connection effect between the beam-column and the light steel keel partition wall is improved, and the overall firmness is improved. Fine sand is filled in multiple places inside the T-shaped strip, thereby improving the fireproof effect at the connection joint.

[0004] However, the above invention has the following deficiencies: The above patent only uses filling fine sand as the fireproof material. Although it can effectively achieve the internal fireproof effect, its external part cannot achieve a good fireproof effect. And the internal working space of common beam-column joints is limited, and the construction of fireproof coatings cannot be carried out, so there are certain limitations. Summary of the Invention

[0005] The purpose of the present invention is to provide a fireproof plugging structure suitable for cable-passing beam-column joints, so as to solve the problems raised in the above background art, and it can achieve the effect of plugging with fireproof rock wool, meeting the fireproof requirements and being convenient for construction.

[0006] The technical solution of the present invention is: A fireproof plugging structure suitable for cable-passing beam-column joints, including a steel column and a steel beam. The steel column and the steel beam intersect perpendicularly. A pair of installation holes are jointly opened on the steel column and the steel beam. A structural cable is slidably installed inside each installation hole. Fireproof rock wool is filled between the structural cable and the installation hole. A stabilizing component is also included.

[0007] The stabilizing component is arranged on a pair of structural cables.

[0008] The stabilizing component includes locking sleeves fixedly sleeved at both ends of the structural cable. A bidirectional threaded rod is commonly connected between every two adjacent locking sleeves by means of threading, and a rotating block is fixedly installed in the middle of the bidirectional threaded rod.

[0009] Preferably, steel sleeves are sleeved at both ends of each structural cable, and thick steel plates are fixedly installed at the intersections of the structural cable with the steel column and the steel beam.

[0010] Preferably, both ends of the thick steel plate located above the node are fixedly welded between the steel sleeve and the steel column and the steel beam respectively, and an angle steel is fixedly welded between one end of the thick steel plate located at the bottom of the node and the steel column and the steel beam.

[0011] Preferably, intumescent fireproof coatings are sprayed on the outer surfaces of the steel column, the steel beam and the structural cable.

[0012] The present invention provides a fireproof plugging structure applicable to a cable passing through a beam-column joint by improvement. Compared with the prior art, it has the following improvements and advantages:

[0013] First: The present invention uses fireproof rock wool for plugging, which meets the fireproof requirements and is convenient for construction. Moreover, the fireproof rock wool is a flexible material. During the later use process of the structure, under the action of external loads, reasonable deformation or displacement will occur between the cable body and the steel frame. The fireproof rock wool will not generate resistance to this structural deformation, ensuring the structural safety. The outside of the cable node is enclosed by a steel plate, forming a reasonable connection with the fireproofing of the cable body outside the node, ensuring the overall fireproof effect of the stay cable. At the same time, the stability of the structural cable node can be further improved by the provided stabilizing component.

[0014] Second: The structure of the present invention is simple, the construction is convenient and the cost is low. It can effectively realize the fireproof construction at the node while ensuring the normal deformation of the cable body, and can also meet the normal fireproof requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by the present invention;

[0017] Figure 2 It is a schematic diagram of the overall half-sectional structure provided by the present invention;

[0018] Figure 3Schematic diagram of the steel beam and steel column provided by the present invention;

[0019] Figure 4 Schematic diagram of the structural cable provided by the present invention;

[0020] Figure 5 Schematic diagram of the stabilizing component provided by the present invention.

[0021] Reference numerals:

[0022] 1, steel column; 2, steel beam; 3, mounting hole; 4, structural cable; 5, fireproof rock wool; 6, steel sleeve; 7, thick steel plate; 8, angle steel; 9, intumescent fireproof coating; 10, lock sleeve; 11, bidirectional threaded rod; 12, rotating block. Detailed implementation manners

[0023] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] The present invention provides a fireproof plugging structure suitable for cable-passing beam-column joints by improvement. The technical solution of the present invention is as follows:

[0025] As Figures 1 to 5 shown, the embodiment of the present invention provides a fireproof plugging structure suitable for cable-passing beam-column joints, including a steel column 1 and a steel beam 2. The steel column 1 and the steel beam 2 intersect perpendicularly. A pair of mounting holes 3 are jointly opened on the steel column 1 and the steel beam 2. A structural cable 4 is slidably installed inside each mounting hole 3. Fireproof rock wool 5 is filled between the structural cable 4 and the mounting hole 3. A stabilizing component is further included. The opened mounting holes 3 can provide a basis for the installation of the structural cable 4. The use of the fireproof rock wool 5 not only facilitates the filling of the internal voids to achieve the effect of convenient construction, but also can meet the fireproof requirements at the joints.

[0026] The stabilizing component is arranged on a pair of structural cables 4.

[0027] The stabilizing component includes lock sleeves 10 fixedly sleeved at both ends of the structural cable 4. A bidirectional threaded rod 11 is threadedly connected between every two adjacent lock sleeves 10. A rotating block 12 is fixedly installed in the middle of the bidirectional threaded rod 11. By arranging the stabilizing component, the stability of the structural cable 4 at the joints can be effectively improved, and the stability of the joints can be improved on the premise of meeting the reasonable deformation or displacement of the structural cable 4.

[0028] Furthermore, steel sleeves 6 are sleeved at both ends of each structural cable 4, and thick steel plates 7 are fixedly installed at the intersections of the structural cable 4 with the steel column 1 and the steel beam 2. The stability of the connection between the structural cable 4 and the steel column 1 and the steel beam 2 is effectively improved by the provided steel sleeves 6 and thick steel plates 7.

[0029] Furthermore, both ends of the thick steel plate 7 located at the upper part of the node are fixedly welded between the steel sleeve 6, the steel column 1 and the steel beam 2 respectively. At one end of the thick steel plate 7 located at the bottom of the node, an angle steel 8 is fixedly welded together between the steel column 1 and the steel beam 2. The structural strength at the stress part at the bottom of the node can be greatly improved by the provided angle steel 8, and the installation stability of the structural cable 4 is further improved.

[0030] Furthermore, the outer surfaces of the steel column 1, the steel beam 2 and the structural cable 4 are all sprayed with intumescent fireproof coatings 9. While facilitating construction, the fireproof effect at the node is further improved by the intumescent fireproof coatings 9.

[0031] Specific working principle: Install and weld the steel sleeve 6 outside the structural cable 4, make the steel sleeve 6 extend 5 cm into the node, install the thick steel plate 7 on one side of the node, weld one end of the thick steel plate 7 to the steel sleeve 6 and the other end to the steel beam 2 or the steel column 1 for fixation. Fill the inside of the node with fireproof rock wool 5, tamp it while filling to ensure that the fireproof rock wool 5 is dense. Finally, carry out the construction of the intumescent fireproof coating 9 on the whole outside of the node.

[0032] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fireproof blocking structure suitable for a cable-through-beam-column joint, comprising a steel column (1) and a steel beam (2), wherein the steel column (1) and the steel beam (2) intersect vertically, and is characterized in that: A pair of mounting holes (3) are commonly formed in the steel column (1) and the steel beam (2). A structural cable (4) is slidably mounted inside each mounting hole (3). Fireproof rock wool (5) is filled between the structural cable (4) and the mounting hole (3). Further included is; A stabilizing component, which is arranged on a pair of structural cables (4); The stabilizing component includes locking sleeves (10) fixedly sleeved at both ends of the structural cable (4). A bidirectional threaded rod (11) is commonly connected by threads between every two adjacent locking sleeves (10). A rotating block (12) is fixedly mounted in the middle of the bidirectional threaded rod (11).

2. The fireproof plugging structure applicable to the cable-passing beam-column joint according to claim 1, characterized in that: Steel sleeves (6) are sleeved at both ends of each structural cable (4). Thick steel plates (7) are fixedly mounted at the intersections of the structural cable (4) with the steel column (1) and the steel beam (2).

3. A fireproof plugging structure applicable to a cable-passing beam-column joint according to claim 1, characterized in that: Both ends of the thick steel plate (7) located at the upper part of the node are fixedly welded between the steel sleeve (6) and the steel column (1) and the steel beam (2). An angle steel (8) is fixedly welded between one end of the thick steel plate (7) located at the bottom of the node and the steel column (1) and the steel beam (2).

4. A fireproof plugging structure applicable to cable-passing beam-column joints according to claim 1, characterized in that: Thick fireproof coatings (9) are sprayed on the outer surfaces of the steel column (1), the steel beam (2), and the structural cable (4).

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