CN218581007U - Connecting beam structure - Google Patents
Connecting beam structure Download PDFInfo
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- CN218581007U CN218581007U CN202222364581.XU CN202222364581U CN218581007U CN 218581007 U CN218581007 U CN 218581007U CN 202222364581 U CN202222364581 U CN 202222364581U CN 218581007 U CN218581007 U CN 218581007U
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Abstract
The utility model relates to a building engineering and structural earthquake resistant technical field especially relate to a link roof beam structure, include: the energy dissipation plate comprises an I-beam, an energy dissipation plate, a connecting plate and a connecting piece, wherein the I-beam comprises a flange and a web, one side of the energy dissipation plate is connected with the web, the connecting plate is connected with the other side of the energy dissipation plate, a yield area is arranged in the middle of the energy dissipation plate, and the cross section area of the yield area is smaller than that of the two ends of the energy dissipation plate. The utility model discloses a link beam structure gets into the plasticity power consumption through the power consumption board under less earthquake effect, provides the additional damping ratio of structure, provides rigidity through ordinary I-beam. Under the action of a larger earthquake, the I-shaped beam can be designed to also enter plastic energy consumption, so that the energy consumption capability of the structure is improved. After the earthquake, the components can be replaced by bolts. The utility model discloses can adopt the I-beam to carry out the coincide, I-beam stable performance, manufacturing process is simple, but wide application in engineering field.
Description
Technical Field
The utility model relates to a building engineering and structural seismic resistance technical field especially relate to a linking beam structure.
Background
The high-rise building can improve the anti-seismic energy-dissipation capacity of the structure by arranging the energy-dissipation coupling beam, the high-rise building coupling beam usually has smaller span height and larger shear effect, and the steel coupling beam capable of yielding in shearing has better energy-dissipation effect. When the earthquake action is larger, the steel connecting beam generates shearing yield and concentrated plasticity, and the rest parts of the structure are protected from being greatly damaged. However, in order to provide a certain rigidity under the action of a small earthquake, the steel coupling beam is generally designed to be subjected to a medium earthquake or a large earthquake, cannot exert an energy consumption effect under the action of a small earthquake, and once yielding occurs, the equivalent rigidity is reduced.
In order to solve the above problems, in the prior utility model, for example, chinese patent CN104805958 discloses a two-step yielding energy-consuming steel coupling beam applied to a coupled shear wall structure, which includes a yielding i-beam at the middle part and a yielding i-beam sleeved outside, both the yielding i-beam and the yielding i-beam are connected to an end plate, the steel coupling beam can also continue to provide rigidity after yielding, but two steel plates need to be welded in a short distance between two sides of the yielding beam at the middle part to form the yielding beam, which is not easy to be realized in engineering, and the end plate is connected to a semi-rigid connection in engineering, so that it is difficult to transmit the shear force generated by the bending moment and produce the yielding under the design target, and it is difficult to replace the yielding beam at the middle part.
SUMMERY OF THE UTILITY MODEL
The utility model aims at least solving and being difficult to transmit the shear force that the moment of flexure produced and producing the problem of shearing surrender under the design objective. The purpose is realized by the following technical scheme:
the utility model provides a link beam structure, include:
the I-beam comprises two flanges which are oppositely arranged and a web plate which is used for connecting the two flanges;
the energy dissipation plate is connected with the web plate at one side;
the connecting plate is connected with the other side of the energy consumption plate;
the connecting piece sequentially penetrates through the connecting plate, the energy consumption plate and the web plate and detachably connects the connecting plate, the energy consumption plate and the web plate;
and the middle part of the energy consumption plate is provided with a yielding area along the direction from one end part of the I-beam to the other end part, and the cross section area of the yielding area is smaller than that of the two ends of the energy consumption plate.
According to the utility model discloses a link beam structure, the power consumption board passes through the connecting piece to be fixed in one side of the web of I-beam, and the power consumption board gets into the yield under less earthquake or wind load effect, provides the power consumption ability, and the I-beam keeps elasticity under less earthquake or wind load effect, provides structural rigidity bearing capacity. The middle part of the energy consumption plate is provided with a yield area, the cross section area of the yield area is smaller than the cross section areas of the two ends of the energy consumption plate, namely the cross section area of the energy consumption plate is reduced in a certain range along the direction from the two ends to the middle part, the cross section weakened in the middle part enables the energy consumption plate to enter plastic yield under the action of shearing force, the two ends of the energy consumption plate are connected with the I-shaped beam through connecting pieces at the connecting plates, the connecting pieces and the damaged energy consumption plate can be dismounted after the earthquake, the replacement after the earthquake can be realized, the structure is simple, and the engineering popularization is easy.
In addition, according to the utility model discloses a linking beam structure still can have following additional technical characterstic:
the utility model discloses an in some embodiments, even beam structure still includes the rubber layer, the rubber layer clamp is established the both ends of power consumption board with between the web.
In some embodiments of the present invention, the coupling beam structure further comprises a cover plate, and the cover plate covers the energy dissipation plate.
In some embodiments of the present invention, the two ends of the cover plate are clamped between the connecting plate and the energy dissipation plate.
In some embodiments of the present invention, the coupling structure further comprises a stiffening rib assembly, and two ends of the stiffening rib assembly are detachably connected to two flanges of the i-beam respectively.
In some embodiments of the present invention, the stiffening rib assembly includes a stiffening rib and a supporting plate, two ends of the supporting plate are respectively fixed on two flanges, and the stiffening rib is used for connecting the energy dissipation plate and the supporting plate.
In some embodiments of the present invention, the yield zone of the energy dissipating plate is a low yield point steel.
In some embodiments of the present invention, the two ends of the energy dissipation plate are made of high yield point steel.
In some embodiments of the present invention, the connecting member is a connecting bolt.
In some embodiments of the present invention, the minimum cross-sectional area of the yield region is 1/5-1/2 of the maximum cross-sectional area of the energy dissipation plate.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a right side view of an attachment beam structure according to an embodiment of the invention;
figure 2 schematically illustrates a front view behind a connecting wall limb of an adjoining beam structure according to an embodiment of the invention;
fig. 3 schematically shows a front view of the coupling beam structure with the cover plate behind the coupling wall limb according to an embodiment of the present invention;
FIG. 4 schematically illustrates an elevation view of a rear connection wall limb of a stiffening rib assembly of an integral beam structure, according to an embodiment of the invention;
figure 5 schematically illustrates a front view of an energy dissipating plate according to an embodiment of the present invention;
FIG. 6 is a graph showing the apparent two-step yield point in the load-displacement curve;
FIG. 7 is a graph showing the relationship between shear force and shear displacement of a coupling beam under a unidirectional load;
FIG. 8 is a schematic view of the cumulative plastic strain of the dissipative sheet;
FIG. 9 is a schematic view of the cumulative plastic strain of an I-beam;
FIG. 10 is a schematic view of the cumulative plastic strain of the whole of the coupling beam structure;
fig. 11 is a graph of energy consumption of the coupling beam structure subjected to repeated loading shear forces.
The reference numbers are as follows:
100 is a connecting beam structure;
10 is an I-beam, 11 is a flange, 12 is a web, 20 is an energy dissipation plate, 21 is a yield area, 30 is a connecting plate, 40 is a connecting piece, 50 is a rubber layer, 60 is a cover plate, 61 is a bolt and 70 is a stiffening rib component;
200 are wall limbs.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience in description, the relationship of one element or feature to another element or feature as illustrated in the figures may be described herein using spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "over", and the like. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "at 8230; \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, according to an embodiment of the present invention, an i-beam structure 100 is provided, the i-beam structure 100 includes an i-beam 10, the i-beam 10 is composed of two flanges 11 and a web 12, the i-beam 10 is used as a main stress structure, two ends of the i-beam are fixed with a connecting plate 30 through a connecting member 40, and one side of the connecting plate 30 is connected to the i-beam structure 100. The coupling beam structure 100 further comprises a dissipative plate 20, the dissipative plate 20 is also fixed on one side of the web 12 of the i-beam 10 through the connecting member 40 of the connecting plate 30, in order to make the dissipative plate 20 more easily enter plastic yielding under the action of shearing force, the middle part of the dissipative plate 20 is provided with a yielding zone 21, and the cross-sectional area of the yielding zone 21 is gradually reduced in a certain range along the direction from two ends to the middle, i.e. the cross-sectional area of the yielding zone 21 is smaller than that of two ends of the dissipative plate 20. According to the utility model discloses a link beam structure 100, power consumption board 20 passes through connecting piece 40 to be fixed in one side of the web 12 of I-beam 10, and power consumption board 20 gets into the yield under less earthquake or wind load effect, provides the power consumption ability, and I-beam 10 keeps elasticity under less earthquake or wind load effect, provides structural rigidity bearing capacity. The middle part of the energy dissipation plate 20 is provided with a yield area 21, the area of the cross section of the yield area 21 is reduced in a certain range along the direction from two ends to the middle part, the cross section weakened in the middle part enables the energy dissipation plate 20 to enter plastic yield more easily under the action of shearing force, two ends of the energy dissipation plate 20 are connected with the I-shaped beam 10 at the connecting plate 30 through the connecting piece 40, the connecting piece 40 and the energy dissipation plate 20 damaged after an earthquake can be disassembled after the earthquake, the replacement after the earthquake can be realized, the structure is simple, and the engineering popularization is easy.
It will be appreciated that the connection plate 30 may be bolted to the wall limb 200, and that the connection plate 30 may be square, with one side fixedly connected to the beam structure 100 and the other side fixedly connected to the wall limb 200. Or the coupling beam structure 100 is fixed in the wall limbs 200 in a grouting and pouring manner, only two ends of the i-beam 10 are poured in the wall limbs 200 during pouring, and the connecting plate 30 and the energy dissipation plate 20 are left outside the wall limbs 200, so that the energy dissipation plate 20 is convenient to replace.
In some embodiments, the coupling beam structure 100 further includes a rubber layer 50, the rubber layer 50 is sandwiched between the connecting plate 30 and the two ends of the energy dissipation plate 20, and the rubber layer 50 can be fixed by fixing the connecting member 40 of the connecting plate 30, so as to allow the yield region 21 in the middle of the energy dissipation plate 20 to deform freely.
In some embodiments, the coupling beam structure 100 further includes a cover plate 60, the cover plate 60 covers the dissipative plate 20, and the cover plate 60 may be made of steel plate, wood plate or concrete plate.
Specifically, the two ends of the cover plate 60 are sandwiched between the connecting plate 30 and the energy consumption plate 20, and the cover plate is connected to the connecting plate 30 and the energy consumption plate 20 through bolts 61.
In some embodiments, the coupling structure 100 further includes a stiffener assembly 70, and both ends of the stiffener assembly 70 are connected to the upper and lower flanges 11 of the i-beam 10, respectively, in a manner of bolt connection. More specifically, the stiffener assembly 70 includes a stiffener bolted to the upper and lower flanges 11 of the i-beam 10, and upper and lower support plates to which the stiffener is attached to one side of the energy dissipation plate 20 without welding.
By arranging the cover plate 60 or the stiffening rib assembly 70, the deformation of the web of the connecting beam structure 100 outside the plane can be limited, stable buckling inhibition is provided for the connecting beam structure 100, the web is stressed approximately in the plane, and the ductility and the energy consumption capability of the connecting beam under the action of earthquake or wind load are further improved.
In some embodiments, the yield zone 21 of the dissipative panel 20 is made of a low yield point steel, which has excellent deep drawability and is easily deformed into plastic yield.
In some embodiments, high yield point steel is used at both ends of the energy dissipating plate 20 for the function of providing yield stiffness.
In some embodiments, the connecting member 40 is a connecting bolt, such as a high-strength bolt, which may provide more stable fastening capability.
In some embodiments, the minimum cross-sectional area of the yield region 21 is 1/5 to 1/2 of the maximum cross-sectional area of the dissipative panel 20. In order to ensure that the energy dissipating plate 20 can best achieve plastic yield, the cross-sectional area of the yield zone 21 is 1/5 to 1/2 of the maximum cross-sectional area of the energy dissipating plate 20. If the cross-sectional area of the yielding region 21 is greater than 1/2 of the maximum cross-sectional area of the dissipative plate 20, the shear dissipative capacity of the dissipative plate 20 is also affected, so the cross-sectional area of the unyielding region 21 cannot be too large.
The utility model discloses a linking beam structure 100 gets into the plasticity power consumption through power consumption board 20 under less seismic action, provides the additional damping ratio of structure, provides rigidity through ordinary I-beam 10. Under the action of a larger earthquake, the I-beam 10 can be designed to perform plastic energy consumption, so that the energy consumption capability of the structure is improved. After the earthquake, the components are replaced through the high-strength bolts. The utility model discloses can adopt ordinary rolling I-beam 10 to carry out the coincide, I-beam stable performance, manufacturing process is simple, but wide application in engineering field has good application prospect and technological economic benefits.
Additionally, the utility model also provides a rigidity calculation method of even beam structure is applied to above-mentioned even beam structure 100, including following step:
calculating the rigidity K of the coupling beam structure 100 according to the rigidity K of the original coupling beam 1 Adjusting the structural size of the coupling beam to K 1 ＞K；
Calculating the first yield force F 1 ；
Calculating a first yield displacement D 1y By a first yield displacement D 1y Yield displacement D of original coupling beam y Comparing and adjusting the shapes of the energy consumption plate 20 and the I-beam 10 of the coupling beam structure 100 to D 1y＜ D y 。
According to the utility model discloses a rigidity calculation method of even roof beam structure is according to former rigidity K and former even roof beam yield displacement D of roof beam y And the calculated rigidity K of the coupling beam structure 100 1 And a first yield displacement D of the link beam structure 100 1y Making a comparison so that K 1 ＞K、D 1y＜ D y When the size of the beam structure 100 meets the requirement, the original beam can be directly replaced and installed, the workload of the construction workers can be reduced by the calculation method, the construction workers do not need to repeatedly modify and adjust the size of the beam on the construction site, and the beam structure is usedBy the calculation method, the construction worker can adjust the size of the coupling beam structure 100 in a factory, and the construction worker can directly replace and install the coupling beam structure on a construction site, so that labor force is saved.
It is understood that the rigidity K of the coupling beam structure is calculated according to the rigidity K of the original coupling beam 1 Adjusting the structural size of the coupling beam to K 1 In K, the formula for calculating the stiffness of the coupling beam structure 100 is:
K 1 ＝K g1 +K s1 ；
wherein, the first and the second end of the pipe are connected with each other,
wherein E is the elastic modulus of the material of the dissipative sheet 20, t is the thickness of the dissipative sheet 20, B is the width of the dissipative sheet 20, H is the length of the dissipative sheet 20, B is the width of the yield zone 21, H is the length of the yield zone 21, r is the chamfer radius in the middle of the yield zone 21, E is g Modulus of elasticity, G, of the material of the I-beam 10 g Shear modulus, A, for I-beam 10 g Is the area, I, of the cross-section of the I-beam 10 g Moment of inertia, K shear form factor, and L span of the i-beam 10.
It is to be understood that the first yield force F of the coupling beam structure 100 is calculated 1 The formula of (1) is as follows:
wherein f is ys Yield strength, A, of the material of the dissipative sheet 20 sr The area of the shear plane in the middle of the dissipative panel 20.
It is understood that the original coupling beam yield displacement D y Is D y ＝θL l Wherein theta is the displacement angle between the elastic layers of the floor where the original coupling beam is located、L l Is the span of the original coupling beam.
It is to be understood that the formula for calculating the first yield displacement is:
it should be understood that the stiffness of the coupling beam structure 100 when the energy dissipation plate 20 yields is K 2 ＝K g1 +α s K s1 The stiffness of the coupling beam structure 100 is K when both the energy dissipation plate 20 and the i-beam 10 yield 3 ＝α g K g1 +α s K s1 In which α is g The ratio of the post-yield stiffness to the pre-yield stiffness of the material of the I-beam 10, alpha s The ratio of the post-yield stiffness to the pre-yield stiffness of the material of the dissipative panel 20.
As shown in fig. 6-7, under the unidirectional loading of the connecting beam structure 100, the connecting beam structure 100 exhibits a two-stage yield mechanism, and when the shearing force of the connecting beam structure 100 reaches the first yield force F 1 The rigidity of the coupling beam structure 100 is obviously changed, and the shearing force of the coupling beam structure 100 reaches the second yield force F 2 The stiffness of the bridge structure 100 again changes significantly.
As shown in fig. 8-10, the plastic development result of the coupling beam structure 100 under the vertical shearing force is shown in fig. 8-10, wherein the PEEQ represents the accumulated plastic strain. In the case that the i-beam 10 does not exhibit plasticity (as shown in fig. 9) at the same time when a force is applied, the plasticity first occurs at the weakened section of the energy dissipation plate 20 (as shown in fig. 8), and the accumulated plastic strain of the coupling beam structure is concentrated at the weakened section of the energy dissipation plate 20 (as shown in fig. 10).
As shown in fig. 11, the connecting beam structure 100 of the present invention has a full curve, so that it can realize a better energy consumption effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An adjoining beam structure, comprising:
the I-beam comprises two flanges which are oppositely arranged and a web plate which is used for connecting the two flanges;
the energy dissipation plate is connected with the web plate at one side;
the connecting plate is connected with the other side of the energy consumption plate;
the connecting piece sequentially penetrates through the connecting plate, the energy consumption plate and the web plate and detachably connects the connecting plate, the energy consumption plate and the web plate;
and a yielding area is arranged in the middle of the energy consumption plate along the direction from one end part of the I-beam to the other end part, and the cross section area of the yielding area is smaller than that of the two ends of the energy consumption plate.
2. The coupling beam structure according to claim 1, further comprising a rubber layer interposed between both ends of the energy dissipating plate and the web.
3. The coupling beam structure according to claim 1, further comprising a cover plate covering the energy dissipation plate.
4. The coupling beam structure according to claim 3, wherein both ends of the cap plate are sandwiched between the connection plate and the energy dissipation plate.
5. The coupling beam structure according to claim 1, further comprising a stiffener assembly having both ends detachably coupled to both flanges of the i-beam, respectively.
6. The coupling beam structure according to claim 5, wherein the stiffener assembly includes a stiffener and a support plate, both ends of the support plate are fixed to the two flanges, respectively, and the stiffener is used to connect the energy dissipation plate and the support plate.
7. The tie beam structure of claim 1 wherein the yield zone of the energy dissipating plate is a low yield point steel.
8. The coupling beam structure according to claim 7, wherein both ends of the energy dissipating plate are high yield point steel.
9. The coupling beam structure according to claim 1, wherein the coupling member is a coupling bolt.
10. The tie beam structure of claim 1 wherein the minimum cross-sectional area of the yield region is 1/5 to 1/2 of the maximum cross-sectional area of the energy dissipating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364581.XU CN218581007U (en) | 2022-09-06 | 2022-09-06 | Connecting beam structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364581.XU CN218581007U (en) | 2022-09-06 | 2022-09-06 | Connecting beam structure |
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| CN218581007U true CN218581007U (en) | 2023-03-07 |
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| CN202222364581.XU Active CN218581007U (en) | 2022-09-06 | 2022-09-06 | Connecting beam structure |
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- 2022-09-06 CN CN202222364581.XU patent/CN218581007U/en active Active
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