Fabricated joint with replaceable energy consumption component

Abstract

An assembly type joint with replaceable energy dissipation components comprises two sections of steel beams, flange connecting pieces and web connecting pieces. The two sections of steel beams are oppositely arranged, the two sides of web plates of the two sections of steel beams are fixedly connected through web plate connecting pieces, and the flanges of the two sections of steel beams are fixedly connected through flange connecting pieces. The replaceable energy dissipation connecting piece yields to dissipate energy, damage of the structure is only concentrated on the connecting piece, then the steel beam is protected against damage, and therefore the structure can be rapidly repaired only by replacing the connecting piece after an earthquake.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembly nodes, and particularly relates to an assembly node with replaceable energy-consuming components. Background Art

[0002] Prefabricated steel structure system refers to house units or structural components made according to unified and standard building component specifications, which are prefabricated in the factory and then transported to the construction site for assembly. At present, the development momentum of prefabricated steel structure buildings in my country is good and the development prospects are broad. The development and application of new prefabricated steel structure systems are of great significance to the industrialization of structural engineering. The development of industrialized prefabricated steel structure systems is an urgent requirement for my country's green buildings and building industrialization.

[0003] The ideal failure mode of frame structures under earthquake action is to realize the three anti-seismic principles of "strong columns and weak beams, strong shear and weak bending, strong nodes and weak components". Through the implementation of the above principles, the structure will have a relatively favorable overall energy dissipation mechanism, making full use of the ductility of components and structures to reduce seismic response.

[0004] The beam-column joint is the most important node in the prefabricated steel structure system. The existing beam-column joint has measures such as weakening the beam cross-section and enhancing the connection strength of the beam-column connection node, so that the node will have plastic hinges at the beam ends under the action of earthquakes, and dissipate energy directly through the yielding of the steel beam, making it impossible to repair the steel beam after the plastic hinge appears, and the structure cannot be reused after the earthquake.

[0005] The above-mentioned beam-weakened nodes and reinforced nodes require a large amount of on-site welding work, the load is unstable, and the nodes rely on beam deformation to consume earthquake energy and meet the needs of structural deformation. The energy consumption capacity and rotation capacity are very limited, and the accumulated plastic deformation of the structure is difficult to recover. If the node is damaged, not only is the repair cost high, but it also adds a lot of time cost to post-earthquake recovery. Utility Model Content

[0006] The purpose of the utility model is to provide an assembled node with replaceable energy-consuming components to solve the above-mentioned problem.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A prefabricated node with replaceable energy-absorbing components comprises two sections of steel beams, flange connectors and web connectors; the two sections of steel beams are arranged opposite to each other, the two sides of the webs of the two sections of steel beams are fixedly connected by the web connectors, and the flanges of the two sections of steel beams are fixedly connected by the flange connectors.

[0009] Furthermore, the flange connector includes an inner flange connector and an outer flange connector; the outer flange connector is arranged on the outer surface of the flange, and the inner flange connector is arranged on the inner surface of the flange.

[0010] Furthermore, the flange outer connector, the flange inner connector and the web connector each include two connecting plates and an intermediate connector, and the two connecting plates are connected via the intermediate connector to form an integrally structured flange outer connector.

[0011] Furthermore, the middle connecting piece is a hollow structure, and bolt holes are provided on both connecting plates.

[0012] Furthermore, the hollow structure is a long strip hollow structure.

[0013] Furthermore, the width of the inner flange connector matches the width of the inner surface of the flange; the width of the outer flange connector matches the width of the outer surface of the flange; and the width of the web connector matches the width of the web.

[0014] Furthermore, the flange connector and the web connector are both fixedly connected by bolts.

[0015] Furthermore, one section of the steel beam is connected to the concrete column.

[0016] Compared with the prior art, the utility model has the following technical effects:

[0017] The connector of the utility model is a long hollow structure, and has excellent ductility and energy dissipation performance;

[0018] The utility model dissipates energy by yielding replaceable energy-absorbing connecting parts, so that the damage of the structure is only concentrated on the connecting parts, thereby protecting the steel beams from damage. Therefore, after an earthquake, only the connecting parts need to be replaced to achieve rapid repair of the structure.

[0019] The utility model has a simple node structure and is easy to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 This is an exploded view of the utility model.

[0022] Figure 3 It is a schematic diagram of the flange outer connecting piece of the utility model.

[0023] Figure 4 It is a schematic diagram of the inner connecting piece of the flange of the utility model.

[0024] Figure 5 It is a schematic diagram of the web connecting piece of the utility model.

[0025] in:

[0026] Steel beam 1; web connector 2; flange inner connector 3; flange outer connector 4; concrete column 5; bolt 6. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1 , an assembled node with replaceable energy-absorbing components, comprising two sections of steel beams 1, flange connectors and web connectors 2; the two sections of steel beams 1 are arranged opposite to each other, the two sides of the webs of the two sections of steel beams 1 are fixedly connected by the web connectors 2, and the flanges of the two sections of steel beams 1 are fixedly connected by the flange connectors.

[0031] The flange connector and the web connector 2 are replaceable energy-absorbing connectors. The cross-sectional openings at the replaceable energy-absorbing connectors are weakened. Under the action of an earthquake, a plastic hinge is first formed at the replaceable energy-absorbing connector. The replaceable energy-absorbing connector yields and dissipates energy, so that the damage to the structure is only concentrated on the connectors, thereby protecting the steel beams from damage. Therefore, after the earthquake, only the connectors need to be replaced to achieve rapid repair of the structure.

[0032] For details, please refer to Figure 2-Figure 5, an assembled node with replaceable energy-absorbing components. It includes a square steel concrete column, a node end section steel beam 1 and a replaceable energy-absorbing connector. One end of the node end section steel beam is connected to the square steel concrete column, and the other end is connected to another section of steel beam 1 through a replaceable energy-absorbing connector. The replaceable energy-absorbing connector includes a web connector 2, a flange outer connector 4 and a flange inner connector 3. The web connector covers both sides of the web and is connected to the web through bolts. The flange outer connector and the flange inner connector cover the outer side and the inner side of the flange respectively and are connected to the flange through bolts 6. A gap is left between the node end section steel beam and the middle section steel beam, and the energy-absorbing plate opening at the gap is weakened to improve the deformation capacity of the connector.

[0033] Assembly process:

[0034] 1. Factory-prefabricated steel columns and beams, replaceable energy-consuming connectors and pre-drilled holes.

[0035] 2. The connecting parts are connected to the steel beam.

[0036] The connecting parts can be made of low yield point high ductility steel or high strength high ductility steel, and pre-drilled.

[0037] The web connecting piece is covered on both sides of the web and connected to the web through bolts. The flange outer connecting piece and the flange inner connecting piece are respectively covered on the outer side and the inner side of the flange and connected to the flange through bolts.

[0038] 3. The end steel beam at the node is connected to the middle steel beam.

[0039] The end steel beam of the node and the middle section steel beam are embedded in the connecting pieces on both sides and are connected to the connecting pieces by bolts respectively, and a gap is left between the two sections of the steel beam.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An assembled node with replaceable energy-consuming components, characterized in that: The invention comprises two sections of steel beams (1), flange connectors and web connectors (2); the two sections of steel beams (1) are arranged opposite to each other, the two sides of the webs of the two sections of steel beams (1) are fixedly connected by the web connectors (2), and the flanges of the two sections of steel beams (1) are fixedly connected by the flange connectors; The flange connecting member comprises an inner flange connecting member (3) and an outer flange connecting member (4); the outer flange connecting member (4) is arranged on the outer surface of the flange, and the inner flange connecting member (3) is arranged on the inner surface of the flange; The flange outer connector (4), the flange inner connector (3) and the web connector (2) each include two connecting plates and an intermediate connector, and the two connecting plates are connected via the intermediate connector to form an integrally structured flange outer connector (4); The width of the flange inner connecting piece (3) matches the width of the flange inner surface; the width of the flange outer connecting piece (4) matches the width of the flange outer surface; and the width of the web connecting piece (2) matches the width of the web.

2. The assembled node with replaceable energy-consuming components according to claim 1, characterized in that: The middle connecting piece is a hollow structure, and bolt holes are provided on both connecting plates.

3. The assembled node with replaceable energy-consuming components according to claim 1, characterized in that: The hollow structure is a long strip hollow structure.

4. The assembled node with replaceable energy-consuming components according to claim 1, characterized in that: The flange connector and the web connector (2) are both fixedly connected by bolts.

5. The assembled node with replaceable energy-consuming components according to claim 1, characterized in that: One section of the steel beam is connected to the concrete column (5).

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