Fabricated steel beam-davit connecting node

Abstract

The utility model discloses an assembly type steel beam 4-davit 5 connecting joint which comprises an outer sleeve structure and a limiting structure, and the outer sleeve structure is located at the upper end of the limiting structure. The outer sleeve structure is composed of a sleeve and outer ring plates 12, the upper end and the lower end of the sleeve are fixedly connected with the outer ring plates 12 respectively, and round holes are formed in the positions, corresponding to a sleeve cavity, of the outer ring plates 12. The davit 5 is mounted in the cavity of the sleeve; the outer sleeve structure is used for connecting a steel beam 4 or a steel pipe 6; the limiting structure is a horizontal base plate 21, and one end of the davit 5 is fixedly connected with the upper surface of the horizontal base plate 21. According to the utility model, the davit 5 and the steel beam 4 are adopted to pass through the node (hinge), and the steel beam 4 is supported by the limiting structure, so that the construction process is simplified, the construction is convenient, the requirement of complex node connection of a large-span space structure is met, the construction progress is improved, and the quality is safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering assembly type technical field, concretely is a kind of assembly type steel beam-hoist column connecting force transfer joint. BACKGROUND

[0002] With the rapid development of modern building industry technology, various super-high, large-span buildings are built like bamboo shoots after spring rain. Among them, large-span structure, construction is complex, and the structural reliability requirement is high. In large-span structure, considering the space, beauty and comfort of building, steel hanging column is often used to realize the role of traditional structure column. At this time, the steel hanging column is an important force and force transmission component in the whole structure system, and the hanging column bears tension for a long time, so the reliability requirement is very high, and once the hanging column fails, it may lead to large-scale collapse of structure, which seriously threatens the safety of users. Steel hanging column mainly relies on column top node and profiled steel beam connection to transmit force, so the reliable connection of hanging column and steel beam needs to be ensured in design. The traditional column top node force transmission is complex, and once the structure beam is slightly dense, the connection section of profiled steel beam and steel column is relatively small, and the installation space between profiled steel beam and steel hanging column is also small, which leads to that steel beam-hoist column node cannot be effectively connected and stable force transmission. SUMMARY

[0003] The utility model aims at providing a kind of assembly type steel beam-hoist column connecting joint to meet the complex node connection demand of large-span space structure.

[0004] The utility model provides a kind of assembly type steel beam-hoist column connecting joint, it is characterized in that, the steel beam-hoist column connecting joint includes: outer sleeve pipe structure, limiting structure, the outer sleeve pipe structure is located at the top of limiting structure;The outer sleeve pipe structure is composed of sleeve pipe, outer ring plate, the upper and lower ends of sleeve pipe are respectively equipped with outer ring plate, the outer ring plate of upper and lower ends is correspondingly set, and is fixedly connected with sleeve pipe, and the position that outer ring plate and sleeve pipe lumen correspond is equipped with round hole;Hoist column is installed in the sleeve pipe lumen;The outer sleeve pipe structure is used for connecting steel beam or steel pipe;

[0005] The limiting structure is horizontal backing plate, and one end of the hoist column is fixedly connected with the horizontal backing plate. Further, the periphery of the sleeve pipe is provided with a first stiffening rib, the first stiffening rib is a plurality of, and the plurality of first stiffening ribs are equally distributed.

[0006] Further, the height of the outer sleeve pipe structure is same with the beam height of the steel beam.

[0007] Further, the thickness of the outer ring plate is same with the flange plate thickness of the steel beam.

[0008] Further, the bottom of the horizontal pad plate is provided with a stiffening structure, the stiffening structure comprises a steel pipe welded vertically on the bottom of the horizontal pad plate, the periphery of the steel pipe is provided with a plurality of second stiffening ribs, and the plurality of second stiffening ribs are equally distributed.

[0009] Further, a rubber gasket is arranged between the sleeve pipe structure and the limiting structure.

[0010] Further, the gap between the sleeve pipe and the hanger column is 3-8mm.

[0011] Further, a cross stiffening rib plate is arranged in the end of the hanger column, and the cross stiffening rib plate is welded and fixed with the horizontal pad plate.

[0012] Further, a prestressed cable is arranged in the hanger column.

[0013] Further, the sleeve pipe structure is square or circular.

[0014] The utility model adopts hanger column and steel beam through type node (hinge), connects the steel beam-hanger column joint node to be designed into the structure of upper and lower split bodies, and the hanger column passes through the welding of sleeve pipe structure and limiting structure, and the steel beam is supported by the limiting structure, simplifies construction procedure, and construction is convenient, meets the demand of complex joint connection of large-span space structure, improves construction progress, and quality is safe and reliable. DRAWINGS

[0015] Figure 1 It is square sleeve pipe longitudinal section view for assembly type steel beam-hanger column joint;

[0016] Figure 2 It is square sleeve pipe longitudinal section view for assembly type steel beam-hanger column joint;

[0017] Figure 3 It is circular sleeve pipe longitudinal section view for assembly type steel beam-hanger column joint;

[0018] Figure 4 It is circular sleeve pipe longitudinal section view for assembly type steel beam-hanger column joint;

[0019] Figure 5 It is square sleeve pipe finite element calculation analysis diagram for assembly type steel beam-hanger column joint.

[0020] 11, sleeve pipe;12, outer ring plate;13, first stiffening rib;21, horizontal pad plate;22, reinforcing pipe;23, second stiffening rib;3, rubber gasket;4, steel beam;5, hanger column;6, steel pipe;61, high-strength bolt. DETAILED DESCRIPTION

[0021] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0023] Example

[0024] The utility model embodiment of the assembled steel beam 4-hanging column connection node, such as Figures 1-4 As shown, it includes: an outer sleeve structure and a limiting structure, wherein the outer sleeve structure is located at the upper end of the limiting structure; the outer sleeve structure is composed of a sleeve 11 and an outer ring plate 12, wherein the upper and lower ends of the sleeve 11 are fixedly connected to the outer ring plate 12, and the outer ring plate 12 is provided with a circular hole at a position corresponding to the lumen of the sleeve 11; the sling 5 is installed in the lumen of the sleeve 11; the outer sleeve structure is used to connect the steel beam 4 or the steel pipe 6;

[0025] The limiting structure is a horizontal pad 21 , and one end of the hanging column 5 is fixedly connected to the upper surface of the horizontal pad 21 .

[0026] Specifically, the end of the suspender 5 is welded to the horizontal pad 21 to form a fixed support for supporting the outer casing structure connected to the steel beam 4 or the steel pipe 6.

[0027] The lumen of the sleeve 11 is a circular hole, the diameter of the hole is reserved according to the diameter of the suspension column 5, and a gap of 3-8 mm, preferably 5 mm, is reserved between the hole and the suspension column 5 to facilitate the subsequent passage of the suspension column 5 through the sleeve.

[0028] Wherein, the outer sleeve structure is square or round

[0029] The outer sleeve structure takes a square as an example. Figures 1-2 As shown, the height of the outer casing structure is the same as the beam height of the steel beam 4, that is, the height between the top surface of the upper outer ring plate 12 and the bottom surface of the lower outer ring plate 12 is the same as the beam height of the steel beam 4. The thickness of the outer ring plate 12 is the same as the thickness of the flange plate of the steel beam 4.

[0030] During use, the suspender 5 is sleeved with the outer sleeve structure and positioned with the limiting structure, and then the upper and lower outer ring plates 12 are welded to the upper and lower flange plates of the steel beam 4 respectively.

[0031] The outer sleeve structure takes a circle as an example, as shown in the figure, the upper outer ring plate 12 and the lower outer ring plate 12 are welded with an arc-shaped connecting plate, so that the appearance structure of the outer sleeve 11 is close to a sphere. Figures 3-4

[0032] In use, the arc-shaped connecting plate is connected with the steel pipe 6 through the high-strength bolt 61, and can be connected in multiple directions and at multiple angles. Compared with the traditional fixed type hanging column joint, the utility model adopts the through type connecting joint, so that the joint can utilize the advantages of assembly type. After the design is completed and deepened, all the joints are produced in the factory, and then are transported to the site for assembly. According to the construction drawing requirement, the hanging column 5 is sleeved, and the construction process is simple. The material loss in the construction process is greatly reduced, the labor intensity of the construction personnel is effectively reduced, and the construction progress is further improved. Since the joint is a hinged connection, the joint can be disassembled and replaced at any time according to the number of the connecting steel beam 4 or the steel pipe 6. The disassembly and replacement construction process is simple. When the lateral steel beam 4 / steel pipe 6 is supported and constructed, since the joint is hinged, the joint can be finely adjusted, positioned and designed according to the site installation condition. This is a characteristic that cannot be matched by the fixed type hanging column-steel beam connecting joint.

[0033] Optionally, the periphery of the sleeve is provided with a first stiffening rib 13, the first stiffening rib 13 is a plurality of, and the plurality of first stiffening ribs 13 are equally distributed.

[0034] Optionally, the bottom of the horizontal backing plate 21 is provided with a stiffening structure, the stiffening structure comprises a steel pipe 6 vertically welded at the bottom of the horizontal backing plate 21, and the periphery of the steel pipe 6 is provided with a plurality of second stiffening ribs 23, and the plurality of second stiffening ribs 23 are equally distributed.

[0035] When installed, the steel pipe 6 corresponds to the position of the hanging column 5, and the structure is used to strengthen the support and bearing capacity of the outer sleeve structure and the steel beam 4.

[0036] Optionally, a rubber gasket 3 is arranged between the outer sleeve structure and the limiting structure.

[0037] Optionally, a cross stiffening rib plate is arranged in the end of the hanging column 5, the cross stiffening rib plate is welded and fixed with the horizontal backing plate 21, and is used to strengthen the support capacity.

[0038] Optionally, a prestressed cable is arranged in the hanging column 5.

[0039] In order to better control the vertical deflection of the suspended floor, the prestressed cable is arranged in the hanging column 5 as the second line of defense of the suspension system, and the structural redundancy is improved.

[0040] ​The traditional boom and steel beam connection is usually rigid connection, the boom in order to resist the imbalance of bending moment transmitted by the steel beam, the section often has to be very large, the boom spacing is dense to meet the stress requirements, however, the large section will cause adverse effects on the visual effect of the building. The steel beam-hanging column connection node provided by the utility model is a hinged node. The hinged node can greatly optimize the section and reduce the amount of steel at the same time.

[0041] The installation of the traditional boom and steel beam is relatively complex, due to the particularity of the boom structure, the two ends of the multi-layer boom are disc-shaped structures, the construction sequence is from bottom to top during installation, when the connection node of the lower end of the hanging column is installed, due to the fact that the node has no fixed support point and the steel beam has not been connected with the surrounding stably, the disturbance of wind load or other factors will make the connection node become a non-fixed support point rotating left and right, the boom cannot stand straight alone, and the stability during the construction process is difficult. The utility model adopts the through type node (hinged) of the boom and the steel beam, the node production is completed by the factory, and the site assembly can be carried out, so that the installation is simple.

[0042] As shown in Figure 5 The utility model adopts the through type node (hinged) of the hanging column 5 and the steel beam 4, and carries out finite element analysis on the most unfavorable load combination working condition by using Abaqus software, the maximum stress of the node connecting ring plate is 203Mpa, which is 23.0% larger than the maximum stress of the support part of the steel beam 4, but is less than the yield strength 295Mpa of the steel material, which shows that the node can effectively transmit the bending moment and the shear force.

[0043] The steel sleeve of the hanging column 5-steel beam 4 is a hinged point, compared with the fixed node, the node of the utility model can be designed in a square or circular personalized manner.

[0044] Finally, it should be explained that the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the above examples, ordinary skilled in the art should understand that the specific embodiments of the utility model can be modified or replaced by the same after reading the present application, but these modifications or changes are still within the scope of the utility model application pending claims.

Claims

1. A fabricated steel beam-hanger column connection node, characterized by, The steel beam-hanger column connecting joint comprises an outer sleeve structure and a limiting structure, and the outer sleeve structure is located at the top of the limiting structure; The outer sleeve structure is composed of a sleeve and an outer ring plate, the upper and lower ends of the sleeve are respectively provided with the outer ring plates, the outer ring plates at the upper and lower ends are correspondingly arranged and fixedly connected with the sleeve, and the outer ring plates are provided with round holes at positions corresponding to the sleeve lumen; a hanger column is mounted in the sleeve lumen; the outer sleeve structure is used for connecting a steel beam or a steel pipe; The limiting structure is a horizontal pad plate, and one end of the hanger column is fixedly connected with the horizontal pad plate.

2. The fabricated steel beam-hanger column connection of claim 1, wherein, The periphery of the sleeve is provided with first stiffening ribs, the first stiffening ribs are multiple, and the multiple first stiffening ribs are equally distributed.

3. The fabricated steel beam-hanger column connection of claim 1, wherein, The height of the outer sleeve structure is the same as the beam height of the steel beam.

4. The fabricated steel beam-hanger column connection of claim 3, wherein, The thickness of the outer ring plate is the same as the thickness of the flange plate of the steel beam.

5. The fabricated steel beam-hanger column connection of claim 1, wherein, The bottom of the horizontal pad plate is provided with a stiffening structure, the stiffening structure comprises a steel pipe vertically welded at the bottom of the horizontal pad plate, and the periphery of the steel pipe is provided with multiple second stiffening ribs, and the multiple second stiffening ribs are equally distributed.

6. The fabricated steel beam-hanger column connection of claim 1, wherein, Rubber gaskets are arranged between the outer sleeve structure and the limiting structure.

7. The fabricated steel beam-hanger column connection of claim 1, wherein, The gap between the sleeve and the hanger column is 3-8 mm.

8. The fabricated steel beam-hanger column connection of claim 1, wherein, A cross stiffening rib plate is arranged in the end portion of the hanger column, and the cross stiffening rib plate is fixedly welded with the horizontal pad plate.

9. The fabricated steel beam-hanger column connection of claim 1, wherein, A prestressed cable is arranged in the hanger column.

10. The fabricated steel beam-hanger column connection node of claim 1, wherein, The outer sleeve structure is square or circular.

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