A self-centering rocking lattice column with replaceable corrugated steel plate dampers

Abstract

The present invention belongs to the field of earthquake prevention and disaster reduction for building structures, and discloses a self-centering rocking lattice column with replaceable corrugated steel plate dampers. In the present invention, anchoring support plates are arranged in the crane limb and the roof limb, and the anchoring support plates and the rigid ground beam are connected by prestressed high-strength steel bars. Moreover, the bottoms of the crane limb and the roof limb are respectively fixed by a separate crane limb shoe beam-column footing and a roof limb shoe beam-column footing. Under the action of a strong earthquake, the crane limb shoe beam-column footing and the roof limb shoe beam-column footing swing and lift. Through the elastic restoring force of the prestressed high-strength steel bars and the vertical axial pressure of the column limbs, the controllable swing of the column footing lifting and resetting movement is realized, enhancing the self-centering ability of the lattice column under a strong earthquake. Two groups of replaceable low-yield-point corrugated steel plate dampers are arranged inside the crane limb shoe beam-column footing and the roof limb shoe beam-column footing. The corrugated steel plate dampers are made of low-yield-point steel, which can give full play to the good fatigue performance, welding performance and plastic development ability of the low-yield-point steel.

Description

Technical Field

[0001] The present invention belongs to the field of earthquake prevention and disaster reduction of building structures, and particularly relates to a self-centering rocking lattice column with replaceable corrugated steel plate dampers. Background Art

[0002] Traditional steel structure heavy industrial plants have the characteristics of high height, large column spacing, large lifting capacity of internal cranes, and significant seismic effects. The load-bearing columns of steel structure heavy industrial plants generally adopt stepped columns, among which the upper column is of solid-web type and the lower column is of lattice type, and they are connected by a shoulder beam. The double-limb lattice column is a common type of the stepped lower column of heavy industrial plants. The roof limb and the crane limb support the roof structure and the crane beam respectively, and mainly adopt battened lattice columns.

[0003] Steel structure heavy industrial plants have suffered varying degrees of damage in previous earthquakes, and the double-limb lattice columns commonly used in heavy industrial plants do not have the function of recoverability after earthquakes, making it difficult to ensure that steel structure heavy industrial plants have good seismic toughness and recoverability after earthquakes. Under strong earthquakes, the double-limb lattice columns and their column feet show severe yielding or buckling, the cumulative damage of the plant is serious, and the residual deformation is large, resulting in the difficulty of quickly restoring the use function of the plant after the earthquake, seriously hindering the recovery of industrial production, and causing huge economic losses and social impacts. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above deficiencies and provide a self-centering rocking lattice column with replaceable corrugated steel plate dampers, which can solve the problems of poor seismic performance and insufficient recoverability after earthquakes of traditional steel structure heavy industrial plants, effectively improve the seismic toughness of heavy industrial plants, and realize the rapid recovery of the use function of the plant after the earthquake.

[0005] To achieve the above purpose, the present invention includes a rigid ground beam, on which a crane limb boot column footing and a roof limb boot column footing are provided. On one side of each of the crane limb boot column footing and the roof limb boot column footing, a corrugated steel plate damper is provided. The two groups of corrugated steel plate dampers are both connected to the corresponding damper connecting plates, and the damper connecting plates are connected to the rigid ground beam. A crane limb is provided on the crane limb boot column footing, and a roof limb is provided on the roof limb boot column footing. The tops of the crane limb and the roof limb are connected by a shoulder beam, and several battens are provided between the crane limb and the roof limb;

[0006] An anchoring support plate is arranged inside the cross-sections of both the crane limb and the roof limb, and the anchoring support plate is connected to the rigid ground beam by prestressed high-strength steel bars.

[0007] The corrugated steel plate damper includes a damper left end plate and a damper right end plate. A damper web is arranged between the damper left end plate and the damper right end plate. The damper web is made of corrugated steel plate, and several damper bolt reserved holes are opened on both the damper left end plate and the damper right end plate.

[0008] The left end plate and the right end plate of the damper are respectively connected to the damper connecting plate and the crane leg boot beam-column footing or the roof leg boot beam-column footing through high-strength bolts.

[0009] Horizontal limit plates are arranged on one side of both the crane leg boot beam-column footing and the roof leg boot beam-column footing.

[0010] The crane leg boot beam-column footing includes an uncovered box body composed of a crane leg boot beam-column footing bottom plate and several crane leg boot beam-column footing partitions. Several crane leg boot beam-column footing stiffeners are arranged in the uncovered box body. Several crane leg boot beam-column footing prestressed high-strength steel bar reserved holes are opened on the crane leg boot beam-column footing bottom plate. Several crane leg boot beam-column footing bolt reserved holes are opened on the left side of the crane leg boot beam-column footing partition.

[0011] The roof leg boot beam-column footing includes an uncovered box body composed of a roof leg boot beam-column footing bottom plate and several roof leg boot beam-column footing partitions. Several roof leg boot beam-column footing stiffeners are arranged in the uncovered box body. Several roof leg boot beam-column footing prestressed high-strength steel bar reserved holes are opened on the roof leg boot beam-column footing bottom plate. Several roof leg boot beam-column footing bolt reserved holes are opened on the right side of the roof leg boot beam-column footing partition.

[0012] Two anchoring support plates are respectively arranged at 3 / 4 of the height of the crane leg and the roof leg. Reserved holes are opened on the rigid ground beam. One end of the prestressed high-strength steel bar is fixed on the anchoring support plate, and the other end passes through the reserved holes of the crane leg boot beam-column footing or the roof leg boot beam-column footing and the rigid ground beam and is fixed on the rigid ground beam.

[0013] The prestressed high-strength steel bar is fixed on the rigid ground beam through an anchor.

[0014] The batten bars include several diagonal batten bars, several horizontal batten bars and several tie batten bars. One end of the diagonal batten bars, the horizontal batten bars and the tie batten bars is fixed on the crane leg, and the other end is fixed on the roof leg.

[0015] A shoulder beam cover plate is arranged outside the shoulder beam, and shoulder beam stiffeners are arranged inside the shoulder beam.

[0016] Compared with the prior art, in the present invention, by arranging anchoring support plates in the crane limb and the roof limb, connecting the anchoring support plates and the rigid ground beam through prestressed high-strength steel bars, and respectively fixing the bottoms of the crane limb and the roof limb through the separated crane limb boot beam-column foot and the roof limb boot beam-column foot, under the action of strong earthquake, the crane limb boot beam-column foot and the roof limb boot beam-column foot swing and lift, and the controllable swing of the column foot lifting and resetting movement is realized through the elastic restoring force of the prestressed high-strength steel bars and the vertical axial pressure of the column limb, enhancing the self-resetting ability of the lattice column under strong earthquake. Two groups of replaceable low-yield-point corrugated steel plate dampers are arranged on the inner sides of the crane limb boot beam-column foot and the roof limb boot beam-column foot. The corrugated steel plate damper is made of low-yield-point steel, which can give full play to the good fatigue performance, welding performance and plastic development ability of the low-yield-point steel; the corrugated steel plate damper can dissipate seismic energy through the large shear plastic deformation generated by the swing and lift of the column foot, and at the same time rely on the axial deformation in the direction of the horizontal corrugated ribs to resist part of the column foot shear force, improving the energy dissipation capacity of the lattice column under strong earthquake action.

[0017] Further, when the corrugated steel plate damper undergoes shear plastic deformation in the vertical direction, the corrugated damper web can effectively control the out-of-plane deformation of the corrugated steel plate damper, and the shear stiffness along the direction of the corrugated ribs of the damper web is relatively large, which can ensure the overall energy dissipation stability of the corrugated steel plate damper and improve the energy dissipation capacity of the damper.

[0018] Further, the corrugated steel plate damper of the present invention is respectively connected to the crane limb boot beam-column foot, the roof limb boot beam-column foot and the damper connecting plate through high-strength bolts, which is beneficial to the installation and post-earthquake disassembly and replacement of the damper. After the earthquake, only the corrugated steel plate damper or / and the prestressed high-strength steel bar need to be replaced to quickly restore the use function of the steel structure heavy industrial plant.

[0019] Further, horizontal limiting plates are arranged on one side of the crane limb boot beam-column foot and the roof limb boot beam-column foot of the present invention, which can effectively limit the large horizontal rigid body displacement of the lattice column during the swing and lift process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the three-dimensional stereogram of the present invention;

[0021] Figure 2 is the front view of the present invention;

[0022] Figure 3 is the schematic diagram of the crane limb boot beam-column foot in the present invention; wherein, (a) is the stereogram and (b) is the top view;

[0023] Figure 4 is the schematic diagram of the roof limb boot beam-column foot in the present invention; wherein, (a) is the stereogram and (b) is the top view;

[0024] Figure 5 Schematic diagram of the separated shoe beam column base and horizontal limit plate in the present invention;

[0025] Figure 6 Exploded view of the column base part of the self-centering rocking latticed column in the present invention;

[0026] Figure 7 Exploded view of the corrugated steel plate damper in the present invention;

[0027] Figure 8 Schematic diagram of the finite element model of the self-centering rocking latticed column in the present invention; wherein, (a) is the overall schematic diagram, (b) is the schematic diagram at position A in (a), and (c) is the schematic diagram at position B in (a);

[0028] Figure 9 Hysteresis curve diagram of the finite element model in the present invention;

[0029] Figure 10 Deformation mode and stress distribution diagram of the finite element model in the present invention; wherein, (a) is the lifting deformation mode of the crane leg, (b) is the lifting deformation mode of the roof leg, (c) is the stress distribution diagram of the crane leg shoe beam column base and the corrugated steel plate damper, and (d) is the stress distribution diagram of the roof leg shoe beam column base and the corrugated steel plate damper;

[0030] Among them, 1. Rigid ground beam; 2. Crane leg shoe beam column base; 201. Crane leg shoe beam column base partition plate; 202. Crane leg shoe beam column base stiffener; 203. Crane leg shoe beam column base bottom plate; 204. Crane leg shoe beam column base bolt reserved hole; 205. Crane leg shoe beam column base prestressed high-strength steel bar reserved hole; 3. Roof leg shoe beam column base; 301. Roof leg shoe beam column base partition plate; 302. Roof leg shoe beam column base stiffener; 303. Roof leg shoe beam column base bottom plate; 304. Roof leg shoe beam column base bolt reserved hole; 305. Roof leg shoe beam column base prestressed high-strength steel bar reserved hole; 4. Horizontal limit plate; 5. Corrugated steel plate damper; 501. Damper left end plate; 502. Damper right end plate; 503. Damper web; 504. Damper bolt reserved hole; 6. High-strength bolt; 7. Damper connecting plate; 8. Prestressed high-strength steel bar; 9. Anchor; 10. Anchor supporting plate; 11. Crane leg; 12. Roof leg; 13. Shoulder beam; 14. Shoulder beam stiffener; 15. Shoulder beam cover plate; 16. Diagonal bracing; 17. Transverse bracing; 18. Tie bracing. Detailed implementation method

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0034] As Figure 1 and Figure 2 shown, the present invention includes a crane limb 11, a roof limb 12 and a shoulder beam 13. The tops of the crane limb 11 and the roof limb 12 are respectively rigidly connected to the shoulder beam 13, and the three are coplanar to form a structural plane, forming the main body of the lattice column. The front and rear sides of the crane limb 11 and the roof limb 12 are connected by multiple groups of diagonal bracings 16 and transverse bracings 17 as the supports of the main body of the lattice column. The diagonal bracings 16 and transverse bracings 17 on the front and rear sides are respectively connected by tie bracings 18. The crane limb 11 and the shoulder beam 13 adopt a welded H-shaped steel section, the roof limb 12 adopts a welded channel steel section, and the diagonal bracings 16, transverse bracings 17 and tie bracings 18 all adopt angle steel sections.

[0035] The crane limb 11 and the roof limb 12 are respectively welded to the shoulder beam 13. The shoulder beam 13 is provided with a number of shoulder beam stiffeners 14. The ends of the shoulder beam are provided with shoulder beam cover plates 15 on the front and rear sides. The shoulder beam stiffeners 14 are welded to the web and flange of the shoulder beam 13, and the shoulder beam cover plates 15 are welded to the shoulder beam stiffeners 14 and the flange of the shoulder beam 13. The diagonal bracings 16 and transverse bracings 17 are respectively welded to the front and rear surfaces of the crane limb 11 and the roof limb 12; the tie bracings 18 are respectively welded to the upper surfaces of the diagonal bracings 16 and transverse bracings 17.

[0036] As Figure 3 and 4As shown in the figure, the upper surfaces of the crane leg boot beam-column base plates 203 and the roof leg boot beam-column base plates 303 are provided with crane leg boot beam-column partition plates 201 and roof leg boot beam-column partition plates 301 around the perimeter; on the inner surfaces of the crane leg boot beam-column partition plates 201, two crane leg boot beam-column stiffeners 202 are provided on each of the left and right sides, and on the inner surface of the roof leg boot beam-column partition plate 301, two roof leg boot beam-column stiffeners 302 are provided on the right side, so that the inner surfaces of the crane leg boot beam-columns 2 and the roof leg boot beam-columns 3 are consistent with the cross-sectional dimensions of the crane legs 11 and the roof legs 12; on the left partition plate of the crane leg boot beam-column 2 and the right partition plate of the roof leg boot beam-column 3 (the inner sides of the two column bases), crane leg boot beam-column bolt reserved holes 204 and roof leg boot beam-column bolt reserved holes 304 are provided; the crane leg boot beam-column base plates 203 and the roof leg boot beam-column base plates 303 are provided with a number of crane leg boot beam-column prestressed high-strength steel bar reserved holes 205 and roof leg boot beam-column prestressed high-strength steel bar reserved holes 305, and the diameters of the crane leg boot beam-column prestressed high-strength steel bar reserved holes 205 and the roof leg boot beam-column prestressed high-strength steel bar reserved holes 305 are 10 mm larger than the diameter of the prestressed high-strength steel bar 8.

[0037] As Figure 5 shown in the figure, the crane legs 11 and the roof legs 12 are inserted into the corresponding crane leg boot beam-columns 2 and roof leg boot beam-columns 3, and the contact surfaces between the outer surfaces of the crane legs 11 and the roof legs 12 and the inner surfaces of the crane leg boot beam-columns 2 and the roof leg boot beam-columns 3 are welded to form a rigid connection. The lower surfaces of the crane leg boot beam-column base plates 203 and the roof leg boot beam-column base plates 303 only come into contact with the upper surface of the rigid ground beam 1 but are not directly connected. The right side of the crane leg boot beam-column base plate 203 and the left side of the roof leg boot beam-column base plate 303 (the outer sides of the two column bases) both extend a certain length, and the extension length is determined according to the height of the horizontal limit plate 4 and the inter-story drift angle limit value. The horizontal limit plate 4 is connected to the upper surface of the rigid ground beam 1 by welding and is closely attached to the outer sides of the crane leg boot beam-column 2 and the roof leg boot beam-column 3.

[0038] As Figure 6 shown in the figure, two groups of corrugated steel plate dampers 5 are provided on the inner sides of the crane leg boot beam-column 2 and the roof leg boot beam-column 3. The corrugated ribs of the corrugated steel plate dampers 5 are placed horizontally, and the damping direction is vertical; on the side of the corrugated steel plate dampers 5 away from the crane leg boot beam-column 2 and the roof leg boot beam-column 3, there is a damper connection plate 7, and the damper connection plate 7 is connected to the rigid ground beam 1; the damper left end plate 501 and the damper right end plate 502 of the corrugated steel plate damper 5 are connected to the roof leg boot beam-column 3, the crane leg boot beam-column 2, and the damper connection plate 7 respectively by a number of high-strength bolts 6, which facilitates the installation of the corrugated steel plate damper 5 and the disassembly and replacement after an earthquake. The damper connection plate 7 is connected to the upper surface of the rigid ground beam 1 by welding.

[0039] An anchoring support plate 10 is provided on the inner side of the cross-sections of the crane leg 11 and the roof leg 12. The anchoring support plate 10 is arranged at 3 / 4 of the height of the crane leg 11 and the roof leg 12, and is welded to the flanges and webs of the crane leg 11 and the roof leg 12; reserved through holes are provided on both the anchoring support plate 10 and the rigid ground beam 1, and their projections in the vertical direction coincide with the prestressed high-strength steel bar reserved holes 205 of the crane leg shoe beam column footing and the prestressed high-strength steel bar reserved holes 305 of the roof leg shoe beam column footing; prestressed high-strength steel bars 8 are arranged through the anchoring support plate 10, the crane leg shoe beam column footing 2, the roof leg shoe beam column footing 3 and the rigid ground beam 1. The initial prestress is applied to the prestressed high-strength steel bars 8 by the external tensioning method. One end of the prestressed high-strength steel bar 8 is fixed to the upper surface of the anchoring support plate 10, and the other end is anchored to the lower surface of the rigid ground beam 1; the specific tensioning and anchoring method of the prestressed high-strength steel bar 8 refers to the relevant requirements of the "Technical Specification for Strengthening Building Structures with External Prestressing" (JGJ / T 279-2012); after the main members of the self-centering rocking lattice column are installed, the rigid ground beam is cast in the concrete foundation.

[0040] As Figure 7 shown, the corrugated steel plate damper 5 is composed of a damper left end plate 501, a damper right end plate 502 and a damper web 503. The damper web 503 is formed by cold processing and pressing, and is welded to the damper left end plate 501 and the damper right end plate 502. Damper bolt reserved holes 504 are reserved on the damper left end plate 501 and the damper right end plate 502. The cross-sectional dimensions of the damper web 503 are designed according to the relevant requirements in the "Technical Specification for Steel Structures with Corrugated Webs" (CECS 291-2011). When the crane leg shoe beam column footing 2 and the roof leg shoe beam column footing 3 swing and lift, the corrugated steel plate damper 5 dissipates energy by undergoing shear plastic deformation. The energy-dissipating steel plate with a corrugated shape can effectively control the out-of-plane deformation of the damper. Its shear stiffness along the corrugated rib direction is relatively large, which can ensure good overall stability of the damper and improve the energy-dissipating capacity. And the corrugated steel plate damper 5 is made of low-yield-point steel, which can give full play to the good fatigue performance, welding performance and plastic development ability of the low-yield-point steel, provide better energy-dissipating capacity and fatigue performance for the damper, and ensure that the structure has a stable energy-dissipating capacity.

[0041] The main load-bearing members in the self-centering rocking lattice column: the crane leg 11, the roof leg 12, the shoulder beam 13, the crane leg shoe beam column footing 2, the roof leg shoe beam column footing 3 and the rigid ground beam 1 are made of high-strength steel (such as Q460 steel), and the secondary load-bearing members: the diagonal bracings 16, the transverse bracings 17 and the tie bracings 18 are made of ordinary steel (such as Q355 steel), so that the main members are always in the elastic stress state during the rocking-lifting process. After the earthquake, only the damaged dampers and / or prestressed high-strength steel bars need to be replaced to quickly restore the normal use function of the factory building structure.

[0042] Finite element simulation analysis:

[0043] The following is to establish a finite element model to simulate the seismic performance of the self-centering rocking lattice column with replaceable corrugated steel plate damper of the present invention under low cyclic reversed loading to verify the feasibility of the present invention:

[0044] (1) Model establishment

[0045] As Figure 8 shown, the distance between the crane leg 11 and the roof leg 12 of the finite element model is 3000 mm, the main height of the lattice column is 15000 mm, and the geometric dimensions of the main body of the lattice column are shown in Table 1. The diameter of the prestressed high-strength steel bar 8 is 28 mm and the length is 14000 mm. The width, height and thickness of the damper web 503 are 450 mm, 600 mm and 6 mm respectively. Among them, the prestressed high-strength steel bar is simulated by T3D2 truss element, and the lattice column, corrugated steel plate damper and foundation concrete are simulated by eight-node reduced integration C3D8R solid element. The corrugated steel plate damper 5 is made of low yield point steel LYP225 (yield strength f y = 225 MPa), the rest of the main stressed members are made of Q460 high-strength steel (f y = 460 MPa), the secondary stressed members are made of Q355 ordinary steel (f y = 355 MPa), and the initial prestress of the prestressed tendon is applied by the equivalent temperature reduction method. The contact properties of the crane leg shoe beam column base plate 203 and the roof leg shoe beam column base plate 303 with the rocking joints of the rigid ground beam 1 and the horizontal limiting plate 4 are set as follows: the "hard" contact is adopted in the normal direction, the Coulomb friction model is adopted in the tangential direction, and the contact surface friction coefficient is taken as 0.3. The out-of-plane degrees of freedom of the crane leg 11 and the roof leg 12 are constrained to prevent out-of-plane instability of the finite element model. The high-strength bolt 6 connection between the corrugated steel plate damper 5 and the damper connecting plate 7 and the crane leg shoe beam column partition plate 201 or the roof leg shoe beam column partition plate 301 in the finite element model is processed by the tied constraint. Vertical loads (divided into two working conditions of symmetry and asymmetry) are applied to the tops of the crane leg 11 and the roof leg 12 columns, and a horizontal reciprocating load P is applied to the top of the shoulder beam 13, and the ultimate column top drift angle θ (the ratio of the horizontal displacement of the top surface of the shoulder beam 13 to the main height of the lattice column) is taken as 2%.

[0046] Table 1 Geometric dimensions of the main structure of the lattice column

[0047]

[0048] It should be noted that in Table 1, H1000×800×40×60 represents the height×flange width×web thickness×flange thickness of the H-shaped steel beam section; [1000×500×30 represents the waist height×leg width×waist thickness of the channel steel section; L250×16 represents the side width×side thickness of the angle steel.

[0049] (2) Result analysis

[0050] As Figure 9 shown, the hysteretic curve presents a typical "double flag" shape, with good self-centering ability and hysteretic energy dissipation ability. When the horizontal load P is unloaded to zero, there is almost no residual deformation in the crane leg boot column base 2 and the roof leg boot column base 3, which has good reset ability. At the same time, the hysteretic curve of the model shows obvious two-stage characteristics. In stage I, that is, under normal working conditions and frequent earthquake actions, the main members of the lattice column remain elastic, and the curve is in the elastic section; in stage II, that is, under fortification and rare earthquake actions, the corrugated steel plate damper 5 enters the elastoplastic state to dissipate seismic energy, and the curve is in the elastoplastic section.

[0051] As Figure 10 shown, the crane leg boot column base 2 and the roof leg boot column base 3 show overall lifting and swaying under the action of the horizontal load P. The plastic deformation and cumulative damage of the structure are concentrated in the corrugated steel plate damper 5. The good plastic deformation ability and stable hysteretic energy dissipation ability of the corrugated steel plate damper 5 are fully exerted. Each member of the main body of the lattice column is in an elastic state. There is no yielding or buckling phenomenon in the crane leg 11 and the roof leg 12 during the lifting-resetting process. The separated boot column base form can effectively transfer the horizontal shear force during the column base lifting-resetting process.

[0052] In summary, the self-centering rocking lattice column with replaceable corrugated steel plate damper presents an overall lifting-resetting movement under the action of horizontal load. The separated boot column base form and rocking joint structure can effectively transfer the horizontal shear force and vertical axial force. After the crane leg boot column base 2 and the roof leg boot column base 3 rotate, the prestressed high-strength steel bars 8 arranged in the crane leg 11 and the roof leg 12 can generate a stable self-centering moment relative to the rotation point. After unloading, there is almost no residual deformation in the crane leg boot column base 2 and the roof leg boot column base 3, which can provide good self-centering ability for the main body of the lattice column. The plastic deformation of the self-centering rocking lattice column is concentrated in the corrugated steel plate damper 5, and each member of the main body of the lattice column remains elastic, realizing the design concept of replaceable damage of the energy dissipation damper after the earthquake and rapid restoration of the structural function.

[0053] It should be noted that, in this document, relational terms such as first and second are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements that are inherent to such process, method, article or apparatus.

[0054] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and many applications other than the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the full scope of the foregoing claims and the equivalents of those claims. For the sake of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the foregoing claims is not intended to abandon such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers, Characterized in that, It includes a rigid ground beam (1), on which a crane leg boot beam - column footing (2) and a roof leg boot beam - column footing (3) are provided. On one side of both the crane leg boot beam - column footing (2) and the roof leg boot beam - column footing (3), corrugated steel plate dampers (5) are provided. Two groups of corrugated steel plate dampers (5) are both connected to corresponding damper connecting plates (7), and the damper connecting plates (7) are connected to the rigid ground beam (1). A crane leg (11) is provided on the crane leg boot beam - column footing (2), and a roof leg (12) is provided on the roof leg boot beam - column footing (3). The tops of the crane leg (11) and the roof leg (12) are connected by a shoulder beam (13), and several lacing bars are arranged between the crane leg (11) and the roof leg (12); Inside the cross - sections of both the crane leg (11) and the roof leg (12), anchoring support plates (10) are provided, and the anchoring support plates (10) are connected to the rigid ground beam (1) through prestressed high - strength steel bars (8).

2. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers according to claim 1, Characterized in that, The corrugated steel plate damper (5) includes a damper left end plate (501) and a damper right end plate (502). Between the damper left end plate (501) and the damper right end plate (502), a damper web (503) is provided. The damper web (503) is made of corrugated steel plate, and several damper bolt reserved holes (504) are opened on both the damper left end plate (501) and the damper right end plate (502).

3. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers according to claim 2, Characterized in that, The damper left end plate (501) and the damper right end plate (502) are respectively connected to the damper connecting plate (7) and the crane leg boot beam - column footing (2) or the roof leg boot beam - column footing (3) through high - strength bolts (6).

4. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers according to claim 1, Characterized in that, Horizontal limiting plates (4) are provided on one side of both the crane leg boot beam - column footing (2) and the roof leg boot beam - column footing (3).

5. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers according to claim 1, Characterized in that, The crane leg boot beam - column footing (2) includes an uncovered box body composed of a crane leg boot beam - column footing bottom plate (203) and several crane leg boot beam - column footing partitions (201). Inside the uncovered box body, several crane leg boot beam - column footing stiffeners (202) are provided. Several crane leg boot beam - column footing prestressed high - strength steel bar reserved holes (205) are opened on the crane leg boot beam - column footing bottom plate (203), and several crane leg boot beam - column footing bolt reserved holes (204) are opened on the left side of the crane leg boot beam - column footing partition (201).

6. A self - resetting rocking lattice column with replaceable corrugated steel plate dampers according to claim 1, Characterized in that, The column base of the roof truss limb boot beam-column (3) includes an open-top box body composed of a column base plate of the roof truss limb boot beam-column (303) and several column base partitions of the roof truss limb boot beam-column (301). Several stiffening ribs of the column base of the roof truss limb boot beam-column (302) are arranged inside the open-top box body. Several precast holes for prestressed high-strength steel bars of the column base of the roof truss limb boot beam-column (305) are provided on the column base plate of the roof truss limb boot beam-column (303). Several precast holes for bolts of the column base of the roof truss limb boot beam-column (304) are provided on the right side of the column base partition of the roof truss limb boot beam-column (301).

7. A self-centering rocking latticed column with replaceable corrugated steel plate dampers according to claim 1, characterized in that, Two anchoring support plates (10) are respectively arranged at 3 / 4 of the heights of the crane limb (11) and the roof truss limb (12). Reserved holes are provided on the rigid ground beam (1). One end of the prestressed high-strength steel bar (8) is fixed on the anchoring support plate (10), and the other end passes through the reserved holes of the column base of the crane limb boot beam-column (2) or the column base of the roof truss limb boot beam-column (3) and the rigid ground beam (1) and is fixed on the rigid ground beam (1).

8. A self-centering rocking latticed column with replaceable corrugated steel plate dampers according to claim 7, characterized in that, The prestressed high-strength steel bar (8) is fixed on the rigid ground beam (1) through an anchor (9).

9. A self-centering rocking latticed column with replaceable corrugated steel plate dampers according to claim 1, characterized in that, The lacing bars include several diagonal lacing bars (16), several horizontal lacing bars (17) and several tie lacing bars (18). One ends of the diagonal lacing bars (16), the horizontal lacing bars (17) and the tie lacing bars (18) are fixed on the crane limb (11), and the other ends are fixed on the roof truss limb (12).

10. A self-centering rocking latticed column with replaceable corrugated steel plate dampers according to claim 1, characterized in that, A cover plate of the shoulder beam (15) is arranged outside the shoulder beam (13), and stiffening ribs of the shoulder beam (14) are arranged inside the shoulder beam (13).

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