Eccentric supporting frame structure and building

Abstract

The utility model discloses an eccentric supporting frame structure and a building. The eccentric supporting frame structure comprises frame columns, frame beams and supporting inclined rods. The frame column is connected with one end of the frame beam, the supporting inclined rod is connected with the top of the frame beam, and the frame beam section between the supporting inclined rod and the frame column is an energy dissipation beam section. A partition layer is arranged between the bottom of the floor slab and the top of the energy dissipation beam section. The energy dissipation beam section structure has the advantages that the partition layer is arranged between the energy dissipation beam section and the floor slab, the floor slab and the energy dissipation beam section are separated, the influence of the flange of the floor slab on the rigidity and the bearing capacity of the energy dissipation beam section is avoided, the rotation or shear deformation capacity of the energy dissipation beam section is guaranteed, the yield sequence of the whole structure meets the expectation, and the energy dissipation effect is good. And the energy dissipation capacity of the energy dissipation beam section is fully exerted, so that the anti-seismic property of the whole structure is improved.

Description

Technical Field

[0001] The utility model relates to a building structure, in particular to an eccentric support frame structure and a building. Background Art

[0002] An eccentrically braced frame is a system used in seismic design of building structures. The axes of its diagonal bracing members, beams, and columns do not intersect at a single point, but are offset by a distance, forming an energy-dissipating beam segment that yields before the diagonal bracing members. This energy-dissipating beam segment, formed between the diagonal bracing members, yields first during a major earthquake, dissipating energy and preventing the diagonal bracing members from yielding. An eccentrically braced frame is an excellent lateral force-resisting system, offering greater lateral stiffness and bearing capacity than conventional frame structures, and better ductility than a centrally braced frame.

[0003] However, in actual construction, the energy dissipation beams and floor slabs of the eccentrically braced frame are integrally cast with concrete, resulting in the floor slabs on the beams becoming the beam flanges. The floor slabs and the steel reinforcement within them significantly increase the beam stiffness, significantly increasing its stiffness and bearing capacity. In a major earthquake, this can cause the diagonal bracing to yield before the beams, leading to support failure. This means the beams' energy dissipation function is not fully utilized, compromising the structural system's seismic performance.

[0004] Therefore, it is necessary to make necessary improvements to the existing technology. Summary of the Invention

[0005] The purpose of the utility model is to provide an eccentrically supported frame structure and a building in view of the deficiencies of the prior art, so as to protect the energy dissipation performance of the energy dissipation beam from interference with the floor slab and give full play to the energy dissipation capacity.

[0006] The technical solution adopted by the utility model is: an eccentric support frame structure, including frame columns, frame beams and supporting diagonal rods;

[0007] The frame column is connected to one end of the frame beam, the supporting diagonal rod is connected to the top of the frame beam, and the frame beam section between the supporting diagonal rod and the frame column is an energy dissipation beam section;

[0008] A floor slab is arranged on the top of the frame beam, and a separation layer is arranged between the bottom of the floor slab and the top of the energy dissipation beam section.

[0009] According to the above solution, the separation layer is a graphite powder layer.

[0010] According to the above solution, the thickness of the separation layer is 0.15 to 0.25 mm.

[0011] According to the above solution, the separation layer is also a tetrafluoroethylene plate or a plastic sheet, which is placed on the top of the energy dissipation beam section.

[0012] According to the above scheme, the frame beams, support beams and frame columns are all steel structures; the frame beams are I-beams, and the energy dissipation beam sections are I-beams.

[0013] According to the above scheme, stiffening ribs are arranged at intervals along the length direction on both sides of the energy dissipation beam section.

[0014] According to the above solution, the inner end of the stiffening rib is connected to the web of the energy dissipation beam section, the top of the stiffening rib is connected to the bottom of the upper flange plate of the energy dissipation beam section, and the bottom of the stiffening rib is connected to the top of the lower flange plate of the energy dissipation beam section.

[0015] According to the above solution, the floor slab includes a steel truss floor slab and a concrete layer cast integrally with the steel truss floor slab;

[0016] According to the above scheme, the top of the frame beam except the energy dissipation beam section is connected to the floor slab through bolts.

[0017] The beneficial effects of the present application are as follows: the present invention sets a partition layer between the energy dissipation beam section and the floor slab, separates the floor slab from the energy dissipation beam section, avoids the floor slab flange from affecting the stiffness and bearing capacity of the energy dissipation beam section, ensures the rotation or shear deformation capacity of the energy dissipation beam section, and the yield sequence of the entire structure meets expectations, and the energy dissipation beam section's energy dissipation capacity can be fully utilized, thereby improving the seismic performance of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0019] Figure 2 for Figure 1 AA cross-sectional view.

[0020] Figure 3 for Figure 1 BB cross-sectional view.

[0021] In the figure: 1-support diagonal rod, 2-energy dissipation beam segment, 3-floor slab, 4-separation layer, 5-frame beam, 6-stiffening rib, 7-frame column, 8-stud. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention. The technical solutions and advantages of the present invention are clearly and completely presented below in conjunction with the accompanying drawings of the utility model patent of this application. Obviously, the described embodiments are only a portion of the embodiments of the present application, not all of them. Generally, the various parts of the embodiments of the present application described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0024] like Figure 1 An eccentrically supported frame structure shown is specifically an eccentrically supported frame structure whose energy dissipation performance is not affected by the floor 3, comprising a frame column 7, a frame beam 5 and a supporting diagonal rod 1;

[0025] The frame column 7 is connected to one end of the frame beam 5, the supporting diagonal rod 1 is connected to the top of the frame beam 5, and the frame beam 5 section between the supporting diagonal rod 1 and the frame column 7 is the energy dissipation beam section 2;

[0026] A floor slab 3 is provided on the top of the frame beam 5 , and a separation layer 4 is provided between the bottom of the floor slab 3 and the top of the energy dissipation beam section 2 .

[0027] In the present invention, the separation layer 4 is fully laid along the top of the energy dissipation beam section 2 to separate the energy dissipation beam section 2 from the floor slab 3; the energy dissipation beam section 2 is part of the frame beam 5, and the end of the energy dissipation beam section 2 is connected to the frame column 7.

[0028] In the present invention, the separation layer 4 is a graphite powder layer with a thickness of 0.15 to 0.25 mm. The separation layer 4 can also be a tetrafluoroethylene plate or a plastic sheet, which is directly placed on the top of the energy dissipation beam section 2, which is easy to operate on site.

[0029] Preferably, the frame beam 5 , support beam and frame column 7 are all steel structures. Specifically, the frame beam 5 is an I-beam, that is, the energy dissipation beam section 2 is also an I-beam.

[0030] Preferably, stiffening ribs 6 are arranged at intervals along the length direction on both sides of the energy dissipation beam section 2, and the arrangement of the stiffening ribs 6 meets the requirements of the specification.

[0031] In the present invention, the inner end of the stiffening rib 6 is connected to the web of the energy dissipation beam section 2, the top of the stiffening rib 6 is connected to the bottom of the upper flange plate of the energy dissipation beam section 2, and the bottom of the stiffening rib 6 is connected to the top of the lower flange plate of the energy dissipation beam section 2.

[0032] In the present invention, the floor slab 3 can be a steel truss floor deck. Specifically, it includes a steel truss floor deck and a concrete layer cast integrally with the steel truss floor deck. The floor slab can also be designed as a steel skeleton structure, specifically including a corrugated steel plate, a steel skeleton, and a concrete layer cast integrally with the corrugated steel plate and the steel skeleton; the corrugated steel plate is laid on top of the frame beam 5 and serves as the lower formwork for the concrete layer; the steel skeleton is placed on and fixed to the corrugated steel plate; concrete is cast on the corrugated steel plate and the steel skeleton to form a concrete layer integrally connected to the steel truss floor deck. In the present invention, the floor slab 3 is an existing structure and will not be described in detail here.

[0033] Preferably, the top of the frame beam 5 except the energy dissipation beam section 2 is connected to the floor slab 3 through the stud 8, such as Figure 3 As shown. No studs 8 are provided in the floor slab 3 at the top of the energy dissipation beam section 2. Figure 2 shown.

[0034] In the present invention, the energy dissipation beam section 2, the supporting diagonal rod 1 and the floor slab 3 should ensure that the bearing capacity under wind load and frequent earthquakes meets the requirements of the specifications.

[0035] A building comprises the eccentrically supported frame structure described above.

[0036] The utility model has a simple structure and is easy to construct. It separates the energy dissipation beam from the floor 3, so that the energy consumption of the energy dissipation beam is not interfered with by the floor 3, and the yield sequence of the entire structure is in line with expectations.

[0037] The above is only an example of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An eccentric support frame structure, characterized in that: It includes frame columns, frame beams and supporting diagonal rods; the frame columns are connected to one end of the frame beams, the supporting diagonal rods are connected to the top of the frame beams, and the frame beam section between the supporting diagonal rods and the frame columns is an energy dissipation beam section; a floor slab is set on the top of the frame beam, and a partition layer is set between the bottom of the floor slab and the top of the energy dissipation beam section.

2. The eccentrically supported frame structure according to claim 1, wherein: The separation layer is a graphite powder layer.

3. The eccentrically supported frame structure according to claim 2, wherein: The thickness of the separation layer is 0.15 to 0.25 mm.

4. The eccentrically supported frame structure according to claim 1, wherein: The separation layer is also a tetrafluoroethylene plate or a plastic sheet, which is placed on the top of the energy dissipation beam section.

5. The eccentrically supported frame structure according to claim 1, wherein: The frame beams, support beams and frame columns are all steel structures; the frame beams are I-beams, and the energy dissipation beam sections are I-beams.

6. The eccentrically supported frame structure according to claim 5, wherein: Stiffening ribs are arranged at intervals along the length direction on both sides of the energy dissipation beam section.

7. The eccentrically supported frame structure according to claim 6, wherein: The inner end of the stiffening rib is connected to the web of the energy dissipation beam section, the top of the stiffening rib is connected to the bottom of the upper flange plate of the energy dissipation beam section, and the bottom of the stiffening rib is connected to the top of the lower flange plate of the energy dissipation beam section.

8. The eccentrically supported frame structure according to any one of claims 1 to 7, wherein: The floor slab comprises a steel bar truss floor slab and a concrete layer cast integrally with the steel bar truss floor slab.

9. The eccentrically supported frame structure according to claim 8, wherein: The tops of the frame beams except the energy dissipation beam sections are connected to the floor slabs through bolts.

10. A building, characterized in that: Includes the eccentric support frame structure described in claim 8 or 9.

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