CN104563321A - High-energy-dissipating vibration absorbing type steel coupling beam and manufacturing method thereof - Google Patents
High-energy-dissipating vibration absorbing type steel coupling beam and manufacturing method thereof Download PDFInfo
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- CN104563321A CN104563321A CN201510024210.9A CN201510024210A CN104563321A CN 104563321 A CN104563321 A CN 104563321A CN 201510024210 A CN201510024210 A CN 201510024210A CN 104563321 A CN104563321 A CN 104563321A
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Abstract
The invention discloses a high-energy-dissipating vibration absorbing type steel coupling beam and a manufacturing method thereof. The high-energy-dissipating vibration absorbing type steel coupling beam comprises a box type sectional steel coupling beam; a plurality of parallel profiled steels which are arranged at intervals are arranged about the outer surface of the box type sectional steel coupling beam; a strong shaft at the sections of the profiled steels is parallel to the box type sectional steel coupling beam in the length direction; the profiled steels are connected through connecting plates to form a steel sleeve, wherein the connecting plates are arranged in parallel in the length direction of the box type sectional steel coupling beam; a plurality of precast concrete blocks are arranged in the box type sectional steel coupling beam. According to the high-energy-dissipating vibration absorbing type steel coupling beam, the additional steel sleeve on the outer surface of the box type sectional steel coupling beam and the internal precast concrete block act together to be used as buckling limiting devices for limiting the local buckling deformation of the box type sectional steel coupling beam in the elastic-plastic stage, so as to achieve the purpose of improving the energy-dissipating capacity of the coupling beam; the problem that excessive local buckling deformation of the general steel coupling beam under the earthquake effect leads to large deterioration of the energy-dissipating capacity can be overcome.
Description
Technical field
Patent of the present invention belongs to field of civil engineering, relates to building structure, particularly relates to a kind of highly energy-consuming damping shaped steel coupling beam.
Background technology
Coupled Shear Wall structure is made up of with the coupling beam being connected each reinforced concrete wall limb reinforced concrete wall limb more than two panels or two panels.Coupled Shear Wall structure can reduce by the coupling of coupling beam between each wall limb the moment of flexure that independent wall limb bears on the one hand, makes total moment of flexure by the wall limb shared that is coupled, thus the shock resistance of integral structural system is strengthened than single limb shear wall; Coupling makes the energy dissipation of structure under geological process as single limb shear wall, no longer concentrate the plastic hinge region depended on bottom shear wall on the other hand, but expands total height to by the power consumption effect of coupling beam.Therefore; Coupled Shear Wall structure meets the aseismatic design concept of " multiple defence line "; it forms plastic hinge when middle shake or large shake effect mainly through the end of coupling beam and the bottom of shear wall limb and to dissipate seismic energy; and coupling beam rate should be introduced into plasticity; the consumption s tructure vibrational energy as main dissipative member; protection agent structure safety, thus realize the target of setting up defences of structure " no collapsing with strong earthquake ".The anti-seismic performance of Coupled Shear Wall and the anti-seismic performance of coupling beam closely related, mainly in current engineering adopt reinforced concrete coupling beams and ordinary steel coupling beam.In China's Wenchuan earthquake of 2008, there is shear failure in the small span-depth ratio reinforced concrete coupling beams of steel concrete Coupled Shear Wall structure, and shear failure is a kind of brittle failure mode comparatively at large, its ductility and energy dissipation capacity poor.The too early shear failure of coupling beam is significantly degenerated causing the strength and stiffness of Coupled Shear Wall structure, has a strong impact on the quake-resistant safety of agent structure.And the ordinary steel coupling beam mainly i shaped cross section that current engineering adopts, in elastic-plastic phase, it will occur that cripling is out of shape, have a strong impact on giving full play to of steel coupling beam energy dissipation capacity.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of highly energy-consuming damping shaped steel coupling beam and method thereof, by adopting box-type section steel coupling beam and additional flexures restraint device limits steel coupling beam is out of shape in elastic-plastic phase cripling, thus reach the object improving coupling beam energy dissipation capacity, excessive and cause steel coupling beam energy dissipation capacity to degenerate serious problem in the distortion of elastic-plastic phase cripling to overcome under geological process ordinary steel coupling beam.
Technical scheme: for achieving the above object, technical scheme of the present invention is as follows:
A kind of highly energy-consuming damping shaped steel coupling beam, comprise box-type section steel coupling beam, the external surface of described box-type section steel coupling beam is around there being some parallel shaped steel, described shaped steel mutual spacing is arranged, the strong axle of the section of described shaped steel is parallel to the beam length direction of described box-type section steel coupling beam, and described shaped steel is connected to form steel bushing by the junction plate in the beam length direction being set in parallel in described box-type section steel coupling beam; The inside of described box-type section steel coupling beam is provided with some precast concrete blocks.The steel bushing make the shaped steel that the external surface of box-type section steel coupling beam connects and the inner precast concrete block increased are jointly as further additional flexures restraint device, internal-external all strengthens intensity and the bending resistance of box-type section steel coupling beam, thus reaches the object improving steel coupling beam highly energy-consuming ability.It is bent and recessed to be there is drum in box-type section steel coupling beam under geological process, with inner precast concrete block restriction box-type section steel coupling beam, drum song and concave deformation occurs, allow it strength failure occur and unstable failure does not occur by the shaped steel of external surface.
Further, in the present invention, the inner surface of described box-type section steel coupling beam and/or external surface are with delamination material.Delamination material mainly allows described box-type section steel coupling beam and outside shaped steel and precast concrete block not form entirety, outside shaped steel and inner precast concrete block are only as the restraint device of constraint box-type section steel coupling beam distortion, do not participate in bearing external load, thus do not increase the Rigidity and strength of box-type section steel coupling beam.
Further, in the present invention, described delamination material is stickiness rubber or high density foamed cotton plate.Stickiness rubber or high density foamed cotton plate are the delamination materials easily obtained.Delamination material mainly for reduce shaped steel and the friction between precast concrete block and described box-type section steel coupling beam stressed, ensure that shaped steel and precast concrete only retrain the bending deformation of described box-type section steel coupling beam, do not participate in bearing external load; Delamination material is conducive to auxiliary shaped steel and precast concrete block location.
Further, in the present invention, cystosepiment is provided with between described precast concrete block adjacent spaces.The effect of described cystosepiment be exactly allow the mutual changing of the relative positions of precast concrete block when box-type section steel coupling beam bends, and do not participate in being subject to curved, thus do not increase the bearing capacity and stiffness of structure, be mainly used to interval precast concrete block, in order to economy, cystosepiment also can replace with space.
Further, in the present invention, described junction plate is arranged on the corner of the section near described box-type section steel coupling beam.
Further, in the present invention, described shaped steel mutual spacing is arranged, and distance is 1 ~ 5 times of the wall thickness of described box-type section steel coupling beam.Distance between described shaped steel is determined according to the wall thickness of described box-type section steel coupling beam.
Further, in the present invention, described shaped steel is angle steel or channel-section steel.Described shaped steel and precast concrete block will have the deformity out of plane of enough Rigidity and strength constraint box-type section steel coupling beams.
A preparation method for highly energy-consuming damping shaped steel coupling beam, is characterized in that: comprise the following steps:
1) delamination material is pasted at the inner surface of described box-type section steel coupling beam and/or external surface;
2) by the external surface of described box-type section steel coupling beam around shaped steel be connected with described junction plate, formed steel bushing;
3) described box-type section steel coupling beam is put into described steel bushing inner;
4) put into described precast concrete block and cystosepiment in the inside of described box-type section steel coupling beam, described precast concrete block and cystosepiment interval are placed.
Beneficial effect: compared with prior art, the present invention is by employing box-type section steel coupling beam and additional outer surface steel bushing and inside increase precast concrete block in conjunction with acting in conjunction, as buckling-restrained device, limit box-type section steel coupling beam to be out of shape in elastic-plastic phase generation cripling, thus reach the object of the energy dissipation capacity improving box-type section steel coupling beam, to overcome under geological process, ordinary steel coupling beam is excessive and cause box-type section steel coupling beam energy dissipation capacity to degenerate serious problem in the distortion of elastic-plastic phase cripling.
Accompanying drawing explanation
Fig. 1 is the structural representation of highly energy-consuming damping shaped steel coupling beam of the present invention;
Fig. 2 is the A-A sectional drawing of accompanying drawing 1;
Fig. 3 is the structural representation of highly energy-consuming damping shaped steel coupling beam embodiment 2 of the present invention;
Fig. 4 is the B-B sectional drawing of accompanying drawing 3;
Fig. 5 is the structural representation of highly energy-consuming damping shaped steel coupling beam embodiment 3 of the present invention;
Fig. 6 is the C-C sectional drawing of accompanying drawing 5.
Detailed description of the invention
A kind of highly energy-consuming damping shaped steel coupling beam, comprise box-type section steel coupling beam 1, the external surface of box-type section steel coupling beam 1 is around there being some parallel shaped steel 2, shaped steel 2 mutual spacing is arranged, the strong axle of the section of shaped steel 2 is parallel to the beam length direction of described box-type section steel coupling beam 1, and shaped steel 2 is connected to form steel bushing by the junction plate 5 in the beam length direction being set in parallel in box-type section steel coupling beam 1; The inside of box-type section steel coupling beam 1 is provided with some precast concrete blocks 3.Preferably, namely shaped steel 2 arranged along deck-molding and deck-siding direction along the beam section direction of the external surface of box-type section steel coupling beam 1 simultaneously.
The inner surface of box-type section steel coupling beam 1 and/or external surface are with delamination material 4, and delamination material 4 is stickiness rubber or high density foamed cotton plate.
Cystosepiment 6 is provided with between precast concrete block 3 adjacent spaces.
Shaped steel 2 is angle steel or channel-section steel.Shaped steel 2 mutual spacing is arranged, and distance is 1 ~ 5 times of the wall thickness of box-type section steel coupling beam 1.
Junction plate 5 is arranged on the corner of the section near box-type section steel coupling beam 1.
A preparation method for highly energy-consuming damping shaped steel coupling beam, comprises the following steps:
1) delamination material 4 is pasted at the inner surface of box-type section steel coupling beam 1 and/or external surface;
2) by the external surface of box-type section steel coupling beam 1 around shaped steel 2 be connected with junction plate 5, formed steel bushing;
3) box-type section steel coupling beam 1 is put into steel bushing inside;
4) put into precast concrete block 3 and cystosepiment 6 in the inside of box-type section steel coupling beam 1, precast concrete block 3 and cystosepiment 6 interval are placed.
Steel bushing is independently, and not having with box-type section steel coupling beam 1 and be directly connected, is both separated by delamination material 4.The effect of steel bushing is exactly prevent box-type section steel coupling beam 1 outward bulge under load bent.First can carry out steel bushing, then be enclosed within box-type section steel coupling beam 1.
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1
As shown in Figure 1, a kind of highly energy-consuming damping shaped steel coupling beam, comprises box-type section steel coupling beam 1, and inner surface and the external surface of box-type section steel coupling beam 1 all have delamination material 4, and delamination material 4 is stickiness rubber.On four limits of the delamination material 4 of the external surface of box-type section steel coupling beam 1, along deck-molding direction around there being some parallel shaped steel 2, shaped steel 2 is channel-section steel; Shaped steel 2 mutual spacing is arranged, and distance is 5 times of the wall thickness of box-type section steel coupling beam 1; The strong axle of the section of shaped steel 2 is parallel to the beam length direction of described box-type section steel coupling beam 1, and shaped steel 2 is connected to form steel bushing by the junction plate 5 in the beam length direction being set in parallel in box-type section steel coupling beam 1; Namely as shown in Figure 2, along the shaped steel 2 at same deck-molding direction place, on the corner four angles place of the section of box-type section steel coupling beam 1 and junction plate 5 are connected to form steel bushing; The inside of box-type section steel coupling beam 1 is provided with some precast concrete blocks 3, is provided with cystosepiment 6 between precast concrete block 3 adjacent spaces.
A preparation method for highly energy-consuming damping shaped steel coupling beam, comprises the following steps:
1) delamination material 4 is pasted, i.e. stickiness rubber at the inner surface of box-type section steel coupling beam 1 and external surface;
2) the external surface of box-type section steel coupling beam 1 to arrange along deck-molding and deck-siding direction simultaneously around shaped steel 2 in, the shaped steel 2 along same deck-molding direction place on the corner welds with the junction plate 5 along beam length direction, forms steel bushing;
3) box-type section steel coupling beam 1 is put into the steel bushing made inner;
4) put into precast concrete block 3 and cystosepiment 6 in the inside of box-type section steel coupling beam 1, precast concrete block 3 and cystosepiment 6 interval are placed.
Embodiment 2
As shown in Figure 3, a kind of highly energy-consuming damping shaped steel coupling beam, comprises box-type section steel coupling beam 12, and inner surface and the external surface of box-type section steel coupling beam 12 all have delamination material 42, and delamination material 42 is high density foamed cotton plate.On four limits of the delamination material 42 of the external surface of box-type section steel coupling beam 12, along deck-molding direction around there being some parallel shaped steel 22, shaped steel 22 is angle steel; Shaped steel 22 mutual spacing is arranged, and distance is 3 times of the wall thickness of box-type section steel coupling beam 12; The strong axle of the section of shaped steel 22 is parallel to the beam length direction of described box-type section steel coupling beam 12, and shaped steel 22 is connected to form steel bushing by the junction plate 52 in the beam length direction being set in parallel in box-type section steel coupling beam 12; As shown in Figure 4, the shaped steel 22 along same deck-molding direction place is on the corner connected to form steel bushing with junction plate 52; The inside of box-type section steel coupling beam 12 is provided with some precast concrete blocks 32, is provided with cystosepiment 62 between precast concrete block 32 adjacent spaces.
A preparation method for highly energy-consuming damping shaped steel coupling beam, comprises the following steps:
1) delamination material 42 is pasted, i.e. high density foamed cotton plate at the inner surface of box-type section steel coupling beam 12 and external surface;
2) the external surface of box-type section steel coupling beam 12 to arrange along deck-molding and deck-siding direction simultaneously around shaped steel 22 in, the shaped steel 22 along same deck-molding direction place on the corner welds with the junction plate 52 along beam length direction, forms steel bushing;
3) box-type section steel coupling beam 12 is put into the steel bushing made inner;
4) put into precast concrete block 32 and cystosepiment 62 in the inside of box-type section steel coupling beam 12, precast concrete block 32 and cystosepiment 62 interval are placed.
Embodiment 3
As shown in Figure 5, a kind of highly energy-consuming damping shaped steel coupling beam, comprises box-type section steel coupling beam 13; In order to economy, only the local of external surface can be provided with delamination material 4, as shown in Figure 6, be only provided with delamination material 43 location steel sleeve and precast concrete block 33 on the top of external surface of box-type section steel coupling beam 13 and the bottom of inner surface, other are local for interspace in advance; At the external surface of box-type section steel coupling beam 13, along deck-molding direction around there being some parallel shaped steel 23, shaped steel 23 is channel-section steel; Shaped steel 23 mutual spacing is arranged, and distance is 1 times of the wall thickness of box-type section steel coupling beam 13; The strong axle of the section of shaped steel 23 is parallel to the beam length direction of described box-type section steel coupling beam 13, and shaped steel 23 is connected to form steel bushing by the junction plate 53 in the beam length direction being set in parallel in box-type section steel coupling beam 13; As shown in Figure 6, the shaped steel 23 along same deck-molding direction place is on the corner connected to form steel bushing with junction plate 53; The inside of box-type section steel coupling beam 13 is provided with some precast concrete blocks 33, is provided with cystosepiment 63 between precast concrete block 33 adjacent spaces.
A preparation method for highly energy-consuming damping shaped steel coupling beam, comprises the following steps:
1) delamination material 43 is pasted, i.e. stickiness rubber at the inner surface of box-type section steel coupling beam 1 and external surface relevant position;
2) the external surface of box-type section steel coupling beam 13 to arrange along deck-molding and deck-siding direction simultaneously around shaped steel 23 in, the shaped steel 23 along same deck-molding direction place on the corner welds with the junction plate 53 along beam length direction, forms steel bushing;
3) box-type section steel coupling beam 13 is put into the steel bushing made inner;
4) put into precast concrete block 33 and cystosepiment 63 in the inside of box-type section steel coupling beam 13, precast concrete block 33 and cystosepiment 63 interval are placed.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a highly energy-consuming damping shaped steel coupling beam, it is characterized in that: comprise box-type section steel coupling beam (1), the external surface of described box-type section steel coupling beam (1) is around there being some parallel shaped steel (2), described shaped steel (2) mutual spacing is arranged, the strong axle of the section of described shaped steel (2) is parallel to the beam length direction of described box-type section steel coupling beam (1), and described shaped steel (2) is connected to form steel bushing by the junction plate (5) in the beam length direction being set in parallel in described box-type section steel coupling beam (1); The inside of described box-type section steel coupling beam (1) is provided with some precast concrete blocks (3).
2. highly energy-consuming damping shaped steel coupling beam according to claim 1, is characterized in that: the inner surface of described box-type section steel coupling beam (1) and/or external surface are with delamination material (4).
3. highly energy-consuming damping shaped steel coupling beam according to claim 2, is characterized in that: described delamination material (4) is stickiness rubber or high density foamed cotton plate.
4. highly energy-consuming damping shaped steel coupling beam according to claim 1, is characterized in that: be provided with cystosepiment (6) between described precast concrete block (3) adjacent spaces.
5., according to the arbitrary described highly energy-consuming damping shaped steel coupling beam of claim 1, it is characterized in that: described junction plate (5) is arranged on the corner of the section near described box-type section steel coupling beam (1).
6., according to the arbitrary described highly energy-consuming damping shaped steel coupling beam of claim 1, it is characterized in that: described shaped steel (2) mutual spacing is arranged, and distance is 1 ~ 5 times of the wall thickness of described box-type section steel coupling beam (1).
7. according to the arbitrary described highly energy-consuming damping shaped steel coupling beam of claim 1 to 6, it is characterized in that: described shaped steel (2) is angle steel, channel-section steel or steel plate.
8. a preparation method for highly energy-consuming damping shaped steel coupling beam, is characterized in that: comprise the following steps:
1) delamination material (4) is pasted at the inner surface of described box-type section steel coupling beam (1) and/or external surface;
2) by the external surface of described box-type section steel coupling beam (1) around shaped steel (2) be connected with described junction plate (5), formed steel bushing;
3) described box-type section steel coupling beam (1) is put into described steel bushing inner;
4) put into described precast concrete block (3) and cystosepiment (6) in the inside of described box-type section steel coupling beam (1), described precast concrete block (3) and cystosepiment (6) interval are placed.
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Cited By (1)
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| CN107782606A (en) * | 2017-10-30 | 2018-03-09 | 华侨大学 | A kind of experimental rig and its application method of the local buckling behavior of double steel plate combined concrete shear wall steel plate |
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