CN211421594U - Corrugated steel shell and solid web type steel composite beam - Google Patents
Corrugated steel shell and solid web type steel composite beam Download PDFInfo
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- CN211421594U CN211421594U CN201920468624.4U CN201920468624U CN211421594U CN 211421594 U CN211421594 U CN 211421594U CN 201920468624 U CN201920468624 U CN 201920468624U CN 211421594 U CN211421594 U CN 211421594U
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Abstract
The utility model provides a steel ripple carapace and real abdomen formula shaped steel composite beam, the beam-ends adopt two ripple webs, concreting in the cavity, there is concrete at the bottom of a beam of beam column root portion pressure zone, make the rigidity and the intensity of roof beam all have the enhancement, even the beam node part has obtained very big enhancement, be equivalent to strengthening the beam column node, make the plasticity hinge move outward, greatly help antidetonation; concrete is poured in the corrugated steel shell at the beam end, so that the beam end rigidity is greatly enhanced, the deflection of the beam is more controllable, and the beam height is favorably controlled; the corrugated web plate is combined with concrete, the shearing resistance is greatly improved, the shearing resistance bearing capacity is greater than the sum of the shearing resistance bearing capacity of the corrugated web plate and the shearing resistance bearing capacity of the concrete, and the shearing resistance bearing capacity of the corrugated web plate can be calculated according to the tensile strength of steel due to the mutual constraint action of the corrugated web plate and the concrete. And after the corrugated web plate and the concrete are combined, the ductility of the corrugated web plate is better than that of a common reinforced concrete member.
Description
Technical Field
The utility model relates to a building structure technical field, concretely relates to steel ripple crust and real abdomen formula shaped steel combination beam.
Background
The aim of seismic fortification of the building structure is that small earthquakes are not damaged, medium earthquakes can be repaired, and large earthquakes are not damaged. For the frame structure, strong shear and weak bending are required, and the purpose is to ensure that the structure has enough ductility during a large earthquake so as to consume energy during the large earthquake and ensure that the structure cannot fall down during the large earthquake.
Taking a concrete beam with a 500x1200mm section and a beam length of 12m as an example, the self weight reaches 180kN, the constant load of the whole structure is greatly improved, the constant load is increased, the seismic effect is increased, and the column section is increased to offset the action effect generated by the increase of the constant load; a steel beam H1200 x 20x400x25 with almost same section height uses steel amount to reach 337kg/m, is very uneconomical, and the section modulus reaches 10x109mm 4; the bottom of the beam at the support is pressed, and the steel beam also has a stability problem;
the common frame beam or floor continuous secondary beam is provided with a floor slab, and the upper flange of the steel beam has no stability problem; for the lower flange, the bottom of the support is pressed, and the bottom of the midspan is pulled; the corrugated steel shell and solid web type steel composite beam has the advantages that concrete is poured into the corrugated steel shell at the end part of the composite beam, the characteristic of strong compression capacity of the concrete is fully utilized, H-shaped steel or corrugated plate H-shaped steel beams or other types of steel beams are used for the midspan section, the tensile strength of the steel is fully utilized, the advantages of the traditional concrete frame beam and the traditional steel frame beam are taken, the advantages are increased, the disadvantages are avoided, and a high-efficiency new composite section is formed.
The existing corrugated web H-shaped steel concrete composite beam is a composite beam consisting of a concrete wing plate and corrugated web H-shaped steel, the shearing force of the beam is borne by a corrugated web, when the corrugated web does not bend before yielding, the shear resistance bearing capacity of the corrugated web is V which is not more than fv and hw and tw, fv is the shear strength design value of web steel, and the shear strength design value of the steel is only about 0.58 times of the tensile strength design value. Based on the accordion effect of the corrugated web, the H-shaped steel reinforced concrete composite beam with the corrugated web has better ductility and energy consumption effect when being used as a frame beam.
The existing corrugated steel web plate combined box girder consists of a concrete top bottom plate, prestressed tendons and a corrugated web plate, wherein a cavity is formed in the middle of the whole section of the girder, concrete is poured in the cavity of the girder along the length direction of the girder, and the defects of great weight and increased earthquake effect are overcome.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel ripple crust and real abdomen formula shaped steel combination beam with good shearing, antidetonation, fire-resistant and economy are convenient.
In order to achieve the above object, the present invention provides a steel corrugated shell and solid-web type steel composite beam, which is characterized in that it comprises two steel corrugated shells and a solid-web type steel; the two corrugated steel shells are respectively arranged at two ends of the solid web type steel section; a cavity is preset in the steel corrugated crust, and concrete is filled in the cavity.
Preferably, the steel corrugated shell comprises two steel corrugated shell upper flanges, two steel corrugated shell lower flanges and two groups of corrugated webs; the two steel corrugated carapace upper flanges are two steel components which are arranged in parallel, and a certain distance is formed between the two steel corrugated carapace upper flanges; the steel corrugated crust lower flange is a steel member arranged in parallel with the steel corrugated crust upper flange; the two groups of corrugated webs are respectively arranged between the two steel corrugated crust upper flanges and the steel corrugated crust lower flanges, the two groups of corrugated webs are vertically arranged with the steel corrugated crust upper flanges and the steel corrugated crust lower flanges, and the two steel corrugated crust upper flanges, the steel corrugated crust lower flanges and the two corrugated webs form the cavity; the steel corrugated crust upper flange is connected with the solid web type section steel through a connecting piece; the solid web type steel lower flange of the solid web type steel is connected with the steel corrugated crust lower flange through the end web.
Preferably, the steel corrugated crust upper flange and the steel corrugated crust lower flange are both strip-shaped steel members which can be angle steel, channel steel or steel pipes.
Preferably, the corrugated web is formed by cold bending a steel plate into a corrugated shape or a wavy shape, is divided into two groups which are parallel left and right, is vertically arranged with the steel corrugated crust upper flange and the steel corrugated crust lower flange, and is connected with the steel corrugated crust upper flange lower surface and the steel corrugated crust lower flange upper surface through welding.
Preferably, the length direction of the end web is perpendicular to the length direction of the steel corrugated shell, and the end web is arranged at the joint of the steel corrugated shell and the solid-web section steel; the upper surface and the lower surface of the end web plate are respectively welded with the steel corrugated crust upper flange and the steel corrugated crust lower flange; the left surface and the right surface of the end web plate are respectively welded with the corrugated web plate and the solid web section steel web plate of the solid web section steel.
Preferably, the solid web type steel comprises a solid web type steel upper flange, a solid web type steel lower flange and a solid web type steel web plate; the solid web type steel web is vertically erected between the solid web type steel upper flange and the solid web type steel lower flange;
preferably, the solid web type steel web is welded H-shaped, corrugated web H-shaped steel or rolled steel beam.
Compared with the prior art, the utility model has the advantages that: the beam end of the steel corrugated carapace and solid web type section steel combined beam adopts a double corrugated web, concrete is poured in a cavity, and a beam bottom compression area at the root of a beam column is provided with the concrete, so that the rigidity and the strength of the beam are enhanced, even if the beam node part is greatly enhanced, the beam node part is equivalent to the reinforced beam column node, so that a plastic hinge moves outwards, and the earthquake resistance is greatly facilitated; meanwhile, the middle section of the beam adopts a solid-web steel structural beam according to the stress characteristics of the beam, so that the self weight of the beam is greatly reduced, and the seismic effect of the structure is greatly reduced; concrete is poured in the corrugated steel shell at the beam end, so that the beam end rigidity is greatly enhanced, the contribution of the beam end rigidity is increased, the deflection of the beam is more controllable, and the beam height is favorably controlled; the corrugated web plate is combined with concrete, the shearing resistance is greatly improved, the shearing resistance bearing capacity is greater than the sum of the shearing resistance bearing capacity of the corrugated web plate and the shearing resistance bearing capacity of the concrete, and the shearing resistance bearing capacity of the corrugated web plate can be calculated according to the tensile strength of steel due to the mutual constraint action of the corrugated web plate and the concrete. And after the corrugated web plate and the concrete are combined, the ductility of the corrugated web plate is better than that of a common reinforced concrete member.
Drawings
Fig. 1 is a schematic structural view of a corrugated steel shell and solid web type steel composite beam according to an embodiment of the present invention;
fig. 2 is a front elevation view of a corrugated steel shell and solid section steel composite beam according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of an end portion of a corrugated steel shell and solid section steel composite beam according to an embodiment of the present invention.
Fig. 4 is a sectional view of a middle section of a corrugated steel shell and solid section steel composite beam according to an embodiment of the present invention.
Fig. 5 is a plan view of a corrugated steel shell and solid section steel composite beam according to an embodiment of the present invention.
In FIGS. 1-5, 1-corrugated steel bottom flange, 2-corrugated web, 3-corrugated steel top flange, 4-connecting member, 5-end web, 6-solid section steel top flange, 7-solid section steel bottom flange, 8-solid section steel web, 9-concrete
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a steel corrugated shell and solid section steel composite beam, which is characterized in that it comprises two steel corrugated shells and a solid section steel; the two corrugated steel shells are respectively arranged at two ends of the solid-web type steel section; a cavity is preset in the corrugated steel shell, and concrete 9 is filled in the cavity.
In the embodiment, the steel corrugated shell comprises two steel corrugated shell upper flanges 3, two steel corrugated shell lower flanges 1 and two groups of corrugated webs 2; the two steel corrugated carapace upper flanges 3 are two steel components which are arranged in parallel, and a certain distance is reserved between the two steel corrugated carapace upper flanges 3; the steel corrugated crust lower flange 1 is a steel member which is arranged in parallel with the steel corrugated crust upper flange 3; the two groups of corrugated webs 2 are respectively arranged between the two steel corrugated crust upper flanges 3 and the steel corrugated crust lower flanges 1, the two groups of corrugated webs 2 are vertically arranged with the steel corrugated crust upper flanges 3 and the steel corrugated crust lower flanges 1, and the two steel corrugated crust upper flanges 3, the steel corrugated crust lower flanges 1 and the two corrugated webs 2 form a cavity; the corrugated steel shell upper flange 3 is connected with the solid web type section steel through a connecting piece 4; the solid web type steel bottom flange 7 of the solid web type steel is connected with the steel corrugated crust bottom flange 1 through the end web 5.
In the embodiment, the steel corrugated shell upper flange 3 and the steel corrugated shell lower flange 1 are both strip-shaped steel members, which can be angle steel, channel steel or steel pipes.
In this embodiment, the corrugated web 2 is formed by cold-bending a steel plate into a corrugated shape or a wavy shape, is divided into two groups parallel to each other, is arranged perpendicular to the corrugated steel shell upper flange 3 and the corrugated steel shell lower flange 1, and is connected to the lower surface of the corrugated steel shell upper flange 3 and the upper surface of the corrugated steel shell lower flange 1 by welding.
In the embodiment, the length direction of the end web 5 is perpendicular to the length direction of the steel corrugated shell, and the end web 5 is arranged at the joint of the steel corrugated shell and the solid web type steel; the upper surface and the lower surface of the end web 5 are respectively welded with the steel corrugated crust upper flange 3 and the steel corrugated crust lower flange 1; the left and right surfaces of the end web 5 are respectively welded with the corrugated web 2 and the solid web 8 of the solid web type steel.
In the embodiment, the solid section steel comprises a solid section steel upper flange 6, a solid section steel lower flange 7 and a solid section steel web 8; the solid web type section steel upper flange 6 and the solid web type section steel lower flange 7 are arranged in parallel, and the solid web type section steel web plate 8 is vertically erected between the solid web type section steel upper flange 6 and the solid web type section steel lower flange 7;
in the present embodiment, the solid web type steel 8 is a welded H-section, corrugated web 2H-section or rolled steel beam.
In order to make the technical scheme of the utility model clearer, the following provides a construction method of steel ripple carapace and solid web type shaped steel composite beam, including following steps:
the method comprises the following steps: placing and welding the steel corrugated carapace upper flange 3, the steel corrugated carapace lower flange 1 and the corrugated web 2 according to set positions, and then welding an end web 5 and a connecting piece 4 to form an end part member of the combined beam;
step two: connecting the solid web type section steel upper flange 6 and the solid web type section steel lower flange 7 with two steel corrugated shells through a connecting piece 4 respectively to form a steel corrugated shell and solid web type section steel combined beam;
hoisting the corrugated steel shell and the solid web type steel composite beam to a specified position, and respectively connecting the corrugated steel shell and the solid web type steel composite beam with a beam support;
step four: pouring micro-expansion concrete 9 into the cavity of the steel corrugated shell, and vibrating and compacting by using a vibrating rod until the micro-expansion concrete is solidified and molded.
In the embodiment, the beam end of the steel corrugated shell and solid web type steel composite beam adopts the double corrugated web 2, concrete 9 is poured in the cavity, and the concrete 9 is arranged in the beam bottom compression area at the root part of the beam column, so that the rigidity and the strength of the beam are enhanced, even if the beam node part is greatly enhanced, the beam node part is equivalent to the reinforced beam column node, so that the plastic hinge moves outwards, and the earthquake resistance is greatly facilitated; meanwhile, the middle section of the beam adopts a solid-web steel structural beam according to the stress characteristics of the beam, so that the self weight of the beam is greatly reduced, and the seismic effect of the structure is greatly reduced; concrete 9 is poured in the corrugated steel shell at the beam end, so that the beam end rigidity is greatly enhanced, the contribution of the beam end rigidity is increased, the deflection of the beam is more controllable, and the beam height is favorably controlled; the combination of the corrugated web 2 and the concrete 9 can greatly improve the shearing resistance, the shearing resistance bearing capacity is greater than the sum of the shearing resistance bearing capacity of the corrugated web 2 and the shearing resistance bearing capacity of the concrete 9, and the shearing resistance bearing capacity of the corrugated web 2 can be calculated according to the tensile strength of steel due to the mutual constraint action of the corrugated web 2 and the concrete 9. And after the corrugated web 2 is combined with the concrete 9, the composite member has better ductility than a common reinforced concrete 9 member.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (7)
1. A steel ripple carapace and solid type profiled bar combination beam, wherein including two steel ripple carapaces and a solid type profiled bar; the two corrugated steel shells are respectively arranged at two ends of the solid web type steel section; a cavity is preset in the steel corrugated crust, and concrete is filled in the cavity.
2. The steel corrugated shell and solid web type steel composite beam as claimed in claim 1, wherein the steel corrugated shell comprises two steel corrugated shell upper flanges, two steel corrugated shell lower flanges, two groups of corrugated webs; the two steel corrugated carapace upper flanges are two steel components which are arranged in parallel, and a certain distance is formed between the two steel corrugated carapace upper flanges; the steel corrugated crust lower flange is a steel member arranged in parallel with the steel corrugated crust upper flange; the two groups of corrugated webs are respectively arranged between the two steel corrugated crust upper flanges and the steel corrugated crust lower flanges, the two groups of corrugated webs are vertically arranged with the steel corrugated crust upper flanges and the steel corrugated crust lower flanges, and the two steel corrugated crust upper flanges, the steel corrugated crust lower flanges and the two corrugated webs form the cavity; the steel corrugated crust upper flange is connected with the solid web type section steel through a connecting piece; the solid web type steel lower flange of the solid web type steel is connected with the steel corrugated crust lower flange through the end web.
3. The steel corrugated shell and solid web type steel composite beam as claimed in claim 2, wherein the steel corrugated shell upper flange and the steel corrugated shell lower flange are both elongated steel members, which may be angle steel, channel steel or steel pipe.
4. The steel corrugated shell and solid web type steel composite beam as claimed in claim 2, wherein the corrugated web is formed by cold bending a steel plate into a corrugated shape or a wavy shape, is divided into two groups parallel to each other, is arranged perpendicular to the steel corrugated shell upper flange and the steel corrugated shell lower flange, and is connected to the steel corrugated shell upper flange lower surface and the steel corrugated shell lower flange upper surface by welding.
5. The steel corrugated shell and solid section steel composite beam of claim 2, wherein the length direction of the end web is perpendicular to the length direction of the steel corrugated shell, and the end web is arranged at the joint of the steel corrugated shell and the solid section steel; the upper surface and the lower surface of the end web plate are respectively welded with the steel corrugated crust upper flange and the steel corrugated crust lower flange; the left surface and the right surface of the end web plate are respectively welded with the corrugated web plate and the solid web section steel web plate of the solid web section steel.
6. The steel corrugated shell and solid section steel composite beam of claim 1, wherein the solid section steel comprises a solid section steel upper flange, a solid section steel lower flange and a solid section steel web; the solid web type section steel upper flange and the solid web type section steel lower flange are arranged in parallel, and the solid web type section steel web is vertically erected between the solid web type section steel upper flange and the solid web type section steel lower flange.
7. The composite beam of claim 6, wherein the solid web is a welded H-section, a corrugated web H-section or a rolled steel beam.
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| CN201920468624.4U CN211421594U (en) | 2019-04-09 | 2019-04-09 | Corrugated steel shell and solid web type steel composite beam |
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| CN201920468624.4U CN211421594U (en) | 2019-04-09 | 2019-04-09 | Corrugated steel shell and solid web type steel composite beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898742A (en) * | 2019-04-09 | 2019-06-18 | 上海欧本钢结构有限公司 | A kind of steel ripple crust and steel flanged beam shaped steel combination beam and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898742A (en) * | 2019-04-09 | 2019-06-18 | 上海欧本钢结构有限公司 | A kind of steel ripple crust and steel flanged beam shaped steel combination beam and its construction method |
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