Self-resetting lattice lacing bar column based on conical steel bar damper arranged on column foot

Abstract

The utility model provides a self-resetting lattice lacing bar column based on a conical steel bar damper arranged on a column foot, which comprises a ground beam, a double-limb lattice lacing bar column and a shoulder beam, and the ground beam is vertically connected with the double-limb lattice lacing bar column; the double-limb lattice type lacing bar column comprises two stand columns, a plurality of inclined lacing bars and a plurality of horizontal lacing bars, the bottoms of the stand columns are perpendicularly and fixedly connected to the ground beam, the two stand columns are symmetrically arranged, the shoulder beam is fixedly connected between the tops of the two stand columns, the horizontal lacing bars are arranged between the two stand columns at equal intervals, and the inclined lacing bars are obliquely arranged between the adjacent horizontal lacing bars. The damping and resetting device is scientific and reasonable in structural design, good in damping and resetting effect, high in assembly speed, high in safety and capable of being popularized and used, and components can be prefabricated.

Description

Technical Field

[0001] This utility model relates to an anti-seismic column base device, specifically to a self-resetting lattice-type laced column base based on a tapered steel rod damper placed at the column base. Background Technology

[0002] In recent years, the earthquake engineering community has focused on how to ensure the resilience of engineering structures, entire cities, and even societies after an earthquake. Resilient structures primarily include swaying wall or swaying frame structures, self-resetting structures, and replaceable structures. Research shows that structural swaying can effectively reduce the effects of earthquakes and minimize damage. By relaxing the constraints between the structure and the foundation or between components, the structure experiences only compression at the contact surfaces with the foundation or components, without tension. Under earthquake action, the structure sways and then returns to its original position through prestress in the components and its own weight, forming a self-resetting structure. This new structural system can effectively control residual deformation after an earthquake, saving time and economic costs in post-earthquake repair. Therefore, there is a need for self-resetting column base devices to improve the seismic performance of large buildings such as heavy industrial plants. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a self-resetting lattice-type lacing column based on a tapered steel rod damper placed at the column base, which addresses the shortcomings of the prior art. The device has a scientific and reasonable structural design, good shock absorption and reset effect, prefabricated components, fast assembly speed, high safety, and can be widely used.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a self-resetting lattice-type braced column based on a conical steel rod damper placed at the column base, characterized in that it includes a ground beam, a double-limb lattice-type braced column and a shoulder beam, the double-limb lattice-type braced column is vertically connected to the ground beam, the shoulder beam is provided at the top of the double-limb lattice-type braced column, and damping components are symmetrically provided at the bottom of both sides of the double-limb lattice-type braced column;

[0005] The double-limb lattice-type braced column includes two upright columns, multiple diagonal braces, and multiple horizontal braces. The bottom of the upright column is vertically fixed to the ground beam. The two upright columns are symmetrically arranged. The top of the two upright columns is fixedly connected to the shoulder beam. Multiple horizontal braces are equidistantly arranged between the two upright columns. Diagonal braces are inclinedly arranged between adjacent horizontal braces.

[0006] The damping assembly includes multiple tapered steel rod dampers and a connecting back plate. The connecting back plate is fixedly connected to the lower part of the side of the column. Two damper end plates are vertically fixedly connected to the connecting back plate. A middle connecting plate is vertically fixedly connected to the connecting back plate at the middle position of the damper end plates. Multiple tapered steel rod dampers are horizontally arranged at equal intervals between the middle connecting plate and the damper end plates on both sides.

[0007] Preferably, the top surface of the ground beam is fixedly connected to the bottom surface of the column through a bottom pad plate, and multiple reinforcing ribs are equidistantly arranged inside the ground beam. A horizontal limiting member with an L-shaped cross section is provided between the ground beam and the middle connecting plate, and the horizontal limiting member is also fixedly connected to the connecting back plate.

[0008] Preferably, the column is an I-beam, and anchor end fixing plates are symmetrically fixedly installed on the upper part of the grooves on both sides of the column. Multiple prestressed steel bars are equidistantly anchored on the anchor end fixing plates, and the bottom end of the prestressed steel bars is fixedly connected to the bottom pad. Multiple positioning plates for assisting in fixing the prestressed steel bars are equidistantly arranged in the grooves on both sides of the column.

[0009] Preferably, multiple pairs of large connecting plates are fixedly installed at equal intervals on the opposite sides of the two columns, with small connecting plates between the large connecting plates. The large and small connecting plates are arranged in pairs on both sides of the prestressed steel bar, with the large connecting plate on the left column directly opposite the small connecting plate on the right column. The large connecting plates on the two columns are staggered. The large connecting plate on the left column is fixedly connected to the large connecting plate on the right column by diagonal bracing strips, and the large connecting plate on the left column is fixedly connected to the small connecting plate on the right column by horizontal bracing strips. Reinforcing bracing strips are fixedly connected between the horizontal and diagonal bracing strips of the same pair.

[0010] Preferably, a reinforcing plate is fixedly installed on the side of the column near the damping component, and the damper end plate is fixedly connected to the connecting back plate by a vertical pad. A cover plate is vertically installed on the top of the back plate, and the cover plate is also fixedly connected to the column. Multiple longitudinal ribs are equidistantly connected between the cover plate and the column, and multiple horizontal ribs are fixedly connected equidistantly between the end face of the back plate near the column and the column.

[0011] This utility model has the following advantages compared with the prior art:

[0012] 1. This utility model utilizes prestress and the structure's self-weight to give the structure good self-resetting performance, which can achieve the performance goal of restoring the structure to its normal use function without repair or with minimal repair after moderate and major earthquakes. This structural system can be put into use quickly after an earthquake, greatly saving the economic and time costs of post-earthquake repair, and has good social and economic benefits.

[0013] 2. This utility model can realize the factory prefabrication of all components, and all prefabricated components can be quickly assembled on the construction site by bolt connection or welding to achieve a high degree of industrialization.

[0014] 3. This utility model has the advantage of sufficient energy dissipation mechanism. The damper added to the column base can greatly help the structure dissipate energy, thereby reducing the acceleration response and displacement response of the structure under seismic action, and making the structure have better seismic toughness.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a partially enlarged three-dimensional structural diagram of the connection between the ground beam and the column in this utility model.

[0018] Figure 3 This is a partially enlarged front view structural schematic diagram of the connection between the ground beam and the column in this utility model.

[0019] Figure 4 This is a side view of the position of the conical steel rod damper in this utility model.

[0020] Figure 5 This is an exploded view of the assembly position of the conical steel rod damper in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1—Ground beam; 2—Column; 3—Shoulder beam;

[0023] 4—Damper end plate; 5—Conical steel bar damper; 6—Reinforcing rib;

[0024] 7—Connecting backplate; 8—Reinforcing plate; 9—Anchoring end fixing plate;

[0025] 10—Prestressed steel bar; 11—Positioning plate; 12—Large connecting plate;

[0026] 13—Horizontal bracing; 14—Diagonal bracing; 15—Reinforcing bracing;

[0027] 16—Small connecting plate; 17—Vertical pad; 18—Middle connecting plate;

[0028] 19—Horizontal limiting component; 20—Bottom pad; 21—Longitudinal rib plate

[0029] 22—Horizontal rib; 23—Cover plate. Detailed Implementation

[0030] like Figures 1 to 5 As shown, this utility model includes a ground beam 1, a double-limb lattice-type laced column and a shoulder beam 3. The double-limb lattice-type laced column is vertically connected to the ground beam 1. The shoulder beam 3 is provided at the top of the double-limb lattice-type laced column. Damping components are symmetrically provided at the bottom of both sides of the double-limb lattice-type laced column.

[0031] The double-limb lattice-type braced column includes two upright columns 2, multiple diagonal braces 14 and multiple horizontal braces 13. The bottom of the upright column 2 is vertically fixed to the ground beam 1. The two upright columns 2 are symmetrically arranged. The shoulder beam 3 is fixedly connected between the tops of the two upright columns 2. Multiple horizontal braces 13 are equidistantly arranged between the two upright columns 2. Diagonal braces 14 are inclinedly arranged between adjacent horizontal braces 13.

[0032] The damping assembly includes eight tapered steel rod dampers 5 and a connecting back plate 7. The connecting back plate 7 is fixedly connected to the lower side of the column 2. Two damper end plates 4 are vertically fixedly connected to the connecting back plate 7. A middle connecting plate 18 is vertically fixedly connected to the connecting back plate 7 at the middle position of the damper end plates 4. Four tapered steel rod dampers 5 are horizontally arranged at equal intervals between the middle connecting plate 18 and the damper end plates 4 on both sides.

[0033] In this embodiment, the top surface of the ground beam 1 is fixedly connected to the bottom surface of the column 2 through the bottom pad 20. Multiple reinforcing ribs 6 are equidistantly arranged inside the ground beam 1. A horizontal limiting member 19 with an L-shaped cross section is provided between the ground beam 1 and the middle connecting plate 18. The horizontal limiting member 19 is also fixedly connected to the connecting back plate 7.

[0034] In this embodiment, the column 2 is an I-beam. Anchor end fixing plates 9 are symmetrically fixedly installed on the upper part of the grooves on both sides of the column 2. Multiple prestressed steel bars 10 are equidistantly anchored on the anchor end fixing plates 9. The bottom end of the prestressed steel bars 10 is fixedly connected to the bottom pad plate 20. Multiple positioning plates 11 for assisting in fixing the prestressed steel bars 10 are equidistantly arranged in the grooves on both sides of the column 2.

[0035] In this embodiment, multiple pairs of large connecting plates 12 are fixedly installed at equal intervals on the opposite sides of the two columns 2. Small connecting plates 16 are arranged between the large connecting plates 12. The large connecting plates 12 and small connecting plates 16 are arranged in pairs on both sides of the prestressed steel bar 10. The large connecting plate on the left column 2 is directly opposite the small connecting plate 16 on the right column 2. The large connecting plates 12 on the two columns 2 are staggered. The large connecting plate 12 on the left column 2 is fixedly connected to the large connecting plate 12 on the right column 2 by diagonal tie bars 14. The large connecting plate 12 on the left column 2 is fixedly connected to the small connecting plate 16 on the right column 2 by horizontal tie bars 13. Reinforcing tie bars 15 are fixedly connected between the horizontal tie bars 13 and the diagonal tie bars 14 of the same pair. The horizontal tie bars 13 and the diagonal tie bars 14 form a lattice support structure.

[0036] In this embodiment, a reinforcing plate 8 is fixedly installed on the side of the column 2 near the damping component, and the damper end plate 4 is fixedly connected to the connecting back plate 7 via a vertical pad 17. A cover plate 23 is vertically installed on the top of the back plate 7, and the cover plate 23 is also fixedly connected to the column 2. Multiple triangular longitudinal ribs 21 are equidistantly connected between the cover plate 23 and the column 2. The two ends of the back plate 7 extend beyond the sides of the column 2, and multiple triangular horizontal ribs 22 are equidistantly fixedly connected to the inner side of the back plate 7 that extends beyond the column 2.

[0037] During use, in the event of an earthquake, the entire device is lifted. Due to the presence of the prestressed steel rod 10, it will be subjected to a downward tension after being lifted. Under the action of the tension, the entire device returns to its original position, and the overall structure does not produce residual deformation or only produces minor residual deformation. During this process, the conical steel rod damper 5 will follow with vertical and horizontal displacement, and then return to its original position. The conical steel rod damper 5 produces plastic deformation to consume the energy input to the earthquake structure, concentrating the damage on the conical steel rod damper 5, ensuring that the main structure is not damaged.

[0038] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A self-resetting lattice-type braced column based on a tapered steel bar damper placed at the column base, characterized in that, It includes a ground beam (1), a double-limb lattice-type laced column and a shoulder beam (3). The double-limb lattice-type laced column is vertically connected to the ground beam (1). The shoulder beam (3) is set at the top of the double-limb lattice-type laced column. Damping components are symmetrically set at the bottom of both sides of the double-limb lattice-type laced column. The double-limb lattice-type braced column includes two upright columns (2), multiple diagonal braces (14) and multiple horizontal braces (13). The bottom of the upright column (2) is vertically fixed to the ground beam (1). The two upright columns (2) are symmetrically arranged. The top of the two upright columns (2) is fixedly connected to the shoulder beam (3). Multiple horizontal braces (13) are equidistantly arranged between the two upright columns (2). Diagonal braces (14) are inclinedly arranged between adjacent horizontal braces (13). The damping assembly includes multiple tapered steel rod dampers (5) and a connecting back plate (7). The connecting back plate (7) is fixedly connected to the lower side of the column (2). Two damper end plates (4) are vertically fixedly connected to the connecting back plate (7). A middle connecting plate (18) is vertically fixedly connected to the connecting back plate (7) at the middle position of the damper end plates (4). Multiple tapered steel rod dampers (5) are horizontally arranged at equal intervals between the middle connecting plate (18) and the damper end plates (4) on both sides.

2. A self-resetting lattice-type braced column based on a tapered steel bar damper placed at the column base, as described in claim 1, is characterized in that... The top surface of the ground beam (1) is fixedly connected to the bottom end face of the column (2) through the bottom pad (20). Multiple reinforcing ribs (6) are equidistantly arranged inside the ground beam (1). A horizontal limiting member (19) with an L-shaped cross section is provided between the ground beam (1) and the middle connecting plate (18). The horizontal limiting member (19) is also fixedly connected to the connecting back plate (7).

3. A self-resetting lattice-type braced column based on a tapered steel bar damper placed at the column base, as described in claim 2, is characterized in that... The column (2) is an I-beam. Anchor end fixing plates (9) are symmetrically fixed on the upper part of the grooves on both sides of the column (2). Multiple prestressed steel bars (10) are anchored at equal intervals on the anchor end fixing plates (9). The bottom end of the prestressed steel bars (10) is fixedly connected to the bottom pad plate (20). Multiple positioning plates (11) for assisting in fixing the prestressed steel bars (10) are equidistantly arranged in the grooves on both sides of the column (2).

4. A self-resetting lattice-type braced column based on a tapered steel bar damper placed at the column base, as described in claim 3, is characterized in that... Multiple pairs of large connecting plates (12) are fixedly installed at equal intervals on opposite sides of the two columns (2). Small connecting plates (16) are set between the large connecting plates (12). The large connecting plates (12) and small connecting plates (16) are set in pairs on both sides of the prestressed steel bar (10). The large connecting plate on the left column (2) is directly opposite the small connecting plate (16) on the right column (2). The large connecting plates (12) on the two columns (2) are staggered. The large connecting plate (12) on the left column (2) is fixedly connected to the large connecting plate (12) on the right column (2) by diagonal tie bars (14). The large connecting plate (12) on the left column (2) is fixedly connected to the small connecting plate (16) on the right column (2) by horizontal tie bars (13). A reinforcing tie bar (15) is fixedly connected between the horizontal tie bars (13) and the diagonal tie bars (14) of the same pair.

5. A self-resetting lattice-type braced column based on a tapered steel bar damper placed at the column base, as described in claim 1, is characterized in that... A reinforcing plate (8) is fixedly installed on the side of the column (2) near the damping component. The damper end plate (4) is fixedly connected to the connecting back plate (7) by a vertical pad (17). A cover plate (23) is vertically installed on the top of the back plate (7). The cover plate (23) is also fixedly connected to the column (2). Multiple longitudinal ribs (21) are equidistantly connected between the cover plate (23) and the column (2). Multiple horizontal ribs (22) are fixedly connected equidistantly between the end face of the back plate (7) near the column (2) and the column (2).

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