CN215802267U - Connection structure of crust roof beam and all kinds of steel columns - Google Patents
Connection structure of crust roof beam and all kinds of steel columns Download PDFInfo
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- CN215802267U CN215802267U CN202121847058.1U CN202121847058U CN215802267U CN 215802267 U CN215802267 U CN 215802267U CN 202121847058 U CN202121847058 U CN 202121847058U CN 215802267 U CN215802267 U CN 215802267U
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Abstract
The utility model provides a connecting structure of a carapace beam and various steel columns, which comprises a carapace beam, a steel column, an upper ring plate, a lower ring plate and a column end double-web plate; an upper annular plate and a lower annular plate are arranged on the periphery of the steel column; the column end double-web plate is arranged between the upper ring plate and the lower ring plate; the end part of the upper flange of the crust beam is connected with the upper ring plate through a butt welding seam, and the end part of the lower flange of the crust beam is connected with the lower ring plate through a butt welding seam; the end parts of the corrugated webs on the two sides of the carapace beam are beam-end flat webs, and the beam-end flat webs on the two sides are respectively connected with the column-end double webs through a plurality of high-strength bolts; the upper flange, the lower flange, the reinforcing steel bar and the upper ring plate bear all bending moments, all the plates are clearly divided into work and are stressed singly, and on the premise that the stress strength of the joint is guaranteed, the number of the high-strength bolts used at the joint is 25-40% of that of a traditional steel beam-steel column frame structure, and the high-strength bolts are more economical.
Description
Technical Field
The utility model relates to the technical field of building and civil engineering, in particular to a connecting structure of a crust beam and various steel columns.
Background
Traditional steel column is connected with the girder steel, mostly adopts the bolt welding method, and the edge of a wing adopts butt weld to connect promptly, and the web trompil back is connected with high strength bolt. All shearing forces are borne by the friction force generated by pressing the friction surface of the connecting plate under the pretension force of the high-strength bolt, and all bending moments are borne by the flange butt-joint welding seam and the web bolt group together. Especially, when the height of the web plate is large, the thickness of the web plate must be large in order to avoid buckling of the web plate, at this time, the proportion of the inertia moment of the web plate in the whole cross section is large, the bending moment shared by the web plate according to the proportion of the inertia moment is large, the number of bolts of the node is very large in order to bear the bending moment, and the high-strength bolts required for shearing far exceed the beam end are large. For example, a 12M by 12M column net, a logistics warehouse with floor load of 2 t/M, a node connecting a main frame beam and a column, and up to 150M 22 level 10.9 high-strength bolts. The cost of only the bolt part is distributed to the building area, and the cost exceeds 60 yuan/square meter.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connection structure of a carapace beam and various steel columns, which is clear in work division of each plate and single in stress, so that a double-web connection node of a web bending moment can be released, and the problems of large quantity of bolt holes, difficulty in alignment, complex construction, waste of manpower and material resources and poor economical efficiency existing in the traditional node in the background art are solved.
In order to achieve the purpose, the utility model provides a connection structure of a carapace beam and various steel columns, which comprises the carapace beam, a steel column, an upper ring plate, a lower ring plate and a column end double-web plate;
the upper ring plate and the lower ring plate are arranged on the periphery of the steel column; the column end double-web plate is arranged between the upper ring plate and the lower ring plate;
the end part of the upper flange of the crust beam is connected with the upper ring plate through a butt welding seam, and the end part of the lower flange of the crust beam is connected with the lower ring plate through a butt welding seam; the end parts of the corrugated webs on the two sides of the carapace beam are beam end flat webs, and the beam end flat webs on the two sides are respectively and fixedly connected with the column end double webs through a plurality of high-strength bolts.
Further, the steel bar is also included; the reinforcing steel bars are laid on the upper ring plate and the upper flange surface of the carapace beam along the length direction of the carapace beam, and the reinforcing steel bars are welded and fixed with the upper ring plate through horn-shaped welding lines.
Further, the column end double-web plate and the beam end flat-web plate transmit all shearing force of the crust beam through high-strength bolts.
Furthermore, the upper flange of the crust beam, the lower flange of the crust beam, the upper ring plate, the lower ring plate and the reinforcing steel bar bear all bending moments of the crust beam.
Further, concrete is poured into the carapace beam and the steel column, and the double webs at the column end form hoop restraint on the concrete inside the carapace beam.
Furthermore, the upper flange of the crust beam is composed of two flat steel plates, and a gap convenient for concrete pouring is reserved between the two flat steel plates.
Further, the steel column is an H-shaped steel column, a box-shaped steel column, a circular steel column, a rectangular concrete-filled steel tube column or a circular concrete-filled steel tube column.
Compared with the prior art, the utility model has the advantages that:
1. the connecting structure of the carapace beam and various steel columns is suitable for various steel columns, the web plate of the carapace beam is a corrugated web plate, the folding effect is achieved, the corrugations only have shearing force, and the high-strength bolts at the nodes only need to transmit the shearing force; the upper flange and the lower flange and the reinforcing steel bar can only transmit all bending moments, each plate has clear division, the stress is single, the node calculation and the structure are simple, and the construction is convenient.
2. The column end double webs have a constraint effect, concrete can be poured inside the column end double webs, reinforcing steel bars can be added to the nodes, the number of the reinforcing steel bars can be adjusted, the types of the carapace beams can be reduced, the component standardization of the carapace beams is realized, and the production is simplified.
3. The economical efficiency is high, and the stress division of the system is clear due to the connecting structure, so that the corrugated web plate does not bear bending moment, and the number of high-strength bolts is 25-40% of that of the traditional steel beam-steel column frame structure. Compared with the traditional steel beam-steel column frame structure with the same bearing capacity, the node can save the manufacturing cost by 30-40%.
4. The steel bars and the upper flange of the crust beam are welded on the upper ring plate, so that the continuity of the tension flow at the joint is ensured; the lower flange of the crust beam is welded with the lower ring plate, and the pressure flow is continuous at the joint; concrete is poured into the column end double-web plates, pressure flow of the concrete is continuous at the node, tension pressure flow is continuous, a couple is formed, the bending resistance and the bearing capacity of the node are reliable, and the beam end flat web plates transmit beam end shearing force to the column through the high-strength bolts and the column end double-web plates, so that the column is safe and reliable.
Drawings
FIG. 1 is a perspective view of a coupling structure of a shell beam and various steel columns according to an embodiment of the present invention;
FIG. 2 is an exploded view of a coupling structure of a crustal beam and various types of steel columns according to an embodiment of the present invention;
fig. 3 is a perspective view of the crustal beam and various steel columns in the embodiment of the present invention after concrete is poured therein.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described below.
As shown in fig. 1 and 2, the present invention provides a connection structure of a crustal beam and various steel columns 2, including a crustal beam 1, a steel column 2, an upper ring plate 3, a lower ring plate 4 and a column end double web 5;
an upper annular plate 3 and a lower annular plate 4 are arranged on the periphery of the steel column 2; the column end double-web plate 5 is arranged between the upper ring plate 3 and the lower ring plate 4;
the end part of the upper flange 6 of the crust beam is connected with the upper ring plate 3 through a butt welding seam, and the end part of the lower flange 7 of the crust beam is connected with the lower ring plate 4 through a butt welding seam; the end parts of corrugated webs 9 on two sides of the crust beam 1 are beam end flat webs 10, the beam end flat webs 10 on two sides are respectively and fixedly connected with the column end double webs 5 through a plurality of high-strength bolts, and the column end double webs 5 and the beam end flat webs 10 transmit all shearing force of the crust beam 1 to the steel column 2 through the high-strength bolts, so that the whole structure is safe and reliable.
In the embodiment, the steel bar 8 is also included; the reinforcing steel bars 8 are laid on the surfaces of the upper ring plate 3 and the upper flange 6 of the carapace beam along the length direction of the carapace beam 1, and the reinforcing steel bars 8 are welded and fixed with the upper ring plate 3 through horn-shaped welding lines. The upper flange, the lower flange, the upper ring plate 3, the lower ring plate 4 and the steel bars 8 of the crust beam bear all bending moments of the crust beam, and the number of the steel bars 8 can be adjusted to reduce the types of the crust beam 1, realize the component standardization of the crust beam 1 and simplify the production.
As shown in fig. 3, concrete is poured into the crust beam 1 and the steel column 2, and the column end double-web 5 forms a hoop constraint for the concrete inside the crust beam 1. The upper flange of the crust beam is composed of two flat-web steel plates, and a gap convenient for concrete pouring is reserved between the two flat-web steel plates.
The upper crust beam flange 6, the steel bar 8 and the lower crust beam flange 7 form a combined section, and the steel bar 8 and the upper crust beam flange 6 are welded on the surface of the upper ring plate 3 at the joint of the steel column 2, so that the continuity of the tension flow at the joint is ensured; the lower flange 7 of the crust beam is welded with the lower ring plate 4, and the pressure flow is continuous at the joint; concrete is poured into the double webs, pressure flow of the concrete is continuous at the node, and pulling pressure flow is continuous to form a couple, so that the bending resistance and the bearing capacity of the node are reliable.
The shape of the steel column 2 is not limited, and may be an H-shaped steel column 2, a box-shaped steel column 2, a circular steel column 2, a rectangular concrete filled steel tube column, or a circular concrete filled steel tube column, in this embodiment, a circular concrete filled steel tube column.
In the aspect of economy, in the utility model, after the upper ring plate 3 extends out of the section of the steel column 2 and is connected with the upper flange 6 of the crust beam in the above way, the reinforcing steel bars 8 of the crust beam 1 can be welded on the extended upper ring plate 3. After concrete is poured into the beam, the joint forms a combined structure of a steel shell and concrete with steel bars 8 in the inside. The concrete beam with the 8 inner steel bars can be constructed without a template and a scaffold, and the load share ratio can be large (changed according to the reinforcement situation). Calculations show that if the inner steel bar 8 concrete cost and the outer steel beam shell cost account for 50% of each, then the inner steel bar 8 concrete beam can bear 70% of the node negative bending moment. The corrugated web 9 does not bear bending moment, and the number of high-strength bolts is only 25-40% of that of the traditional steel beam-steel column 2 frame structure, which means that the method has very good economical efficiency. Compared with the traditional steel beam-steel column 2 frame structure with the same bearing capacity, the node can save 30-40% of construction cost approximately. The frame formed by combining the crust beam 1 and the steel column 2 and the novel connection method are adopted, compared with the traditional steel beam-steel column 2 frame structure under the same conditions, the overall cost can be saved by 10-20 percent
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. A structure for connecting a crust beam with various steel columns is characterized by comprising the crust beam, a steel column, an upper ring plate, a lower ring plate and a column end double-web plate;
the upper ring plate and the lower ring plate are arranged on the periphery of the steel column; the column end double-web plate is arranged between the upper ring plate and the lower ring plate;
the end part of the upper flange of the crust beam is connected with the upper ring plate through a butt welding seam, and the end part of the lower flange of the crust beam is connected with the lower ring plate through a butt welding seam; the end parts of the corrugated webs on the two sides of the carapace beam are beam end flat webs, and the beam end flat webs on the two sides are respectively connected with the column end double webs through a plurality of high-strength bolts.
2. The coupling structure of the crustal beam and the various types of steel columns according to claim 1, further comprising reinforcing bars; the reinforcing steel bars are laid on the upper ring plate and the upper flange surface of the carapace beam along the length direction of the carapace beam, and the reinforcing steel bars are welded and fixed with the upper ring plate through horn-shaped welding lines.
3. The structure for connecting a crustal beam with various types of steel columns according to claim 1, wherein the column-end double-web plate and the beam-end flat-web plate transmit all the shearing force of the crustal beam through high-strength bolts.
4. The coupling structure of the crustal beam and the various types of steel columns according to claim 2, wherein the crustal beam upper flange, the crustal beam lower flange, the upper ring plate, the lower ring plate and the steel bars bear all bending moments of the crustal beam.
5. The structure for connecting a crustal beam and various steel columns according to claim 1, wherein concrete is poured into the crustal beam and the steel column, and the double web plates at the column ends form hoop constraints on the concrete inside the crustal beam.
6. The structure for connecting a crustal beam and various types of steel columns according to claim 5, wherein the upper flange of the crustal beam is composed of two flat-web steel plates, and a gap for facilitating concrete pouring is reserved between the two flat-web steel plates.
7. The structure for connecting a crustal beam with various types of steel columns according to claim 1, wherein the steel columns are H-shaped steel columns, box-shaped steel columns, circular steel columns, rectangular concrete filled steel columns or circular concrete filled steel columns.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121847058.1U CN215802267U (en) | 2021-08-09 | 2021-08-09 | Connection structure of crust roof beam and all kinds of steel columns |
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| CN202121847058.1U CN215802267U (en) | 2021-08-09 | 2021-08-09 | Connection structure of crust roof beam and all kinds of steel columns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585467A (en) * | 2021-08-09 | 2021-11-02 | 南通欧本建筑科技有限公司 | Connection structure of crust roof beam and all kinds of steel columns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585467A (en) * | 2021-08-09 | 2021-11-02 | 南通欧本建筑科技有限公司 | Connection structure of crust roof beam and all kinds of steel columns |
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