CN115405023B - Assembled self-resetting controllable hinge energy consumption wall and assembling method thereof - Google Patents
Assembled self-resetting controllable hinge energy consumption wall and assembling method thereof Download PDFInfo
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- CN115405023B CN115405023B CN202211223990.6A CN202211223990A CN115405023B CN 115405023 B CN115405023 B CN 115405023B CN 202211223990 A CN202211223990 A CN 202211223990A CN 115405023 B CN115405023 B CN 115405023B
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 67
- 239000010959 steel Substances 0.000 claims description 67
- 239000011150 reinforced concrete Substances 0.000 claims description 18
- 239000004567 concrete Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 84
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 17
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- 230000008439 repair process Effects 0.000 description 4
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- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/562—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with fillings between the load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to the technical field of civil engineering damping, in particular to an assembled modularized self-resetting controllable hinge energy consumption wall and an assembling method thereof. The double-layer frame structure is formed by splicing a hinge column, a bottom hinge beam, a top hinge beam, a middle hinge beam, a resetting system, a friction wall, a shear wall and a yield wall; the double-layer frame structure is provided with at least one group, and a plurality of groups of double-layer frame structures are stacked and spliced; two ends of the friction wall are respectively connected with the hinge posts; two sides of the shear wall are respectively connected with the bottom hinge beam, the middle hinge beam and the top hinge beam to form an energy-consumption shear wall group; or the yield wall replaces the shear wall and the friction wall, and the yield wall is connected with the hinge column, the bottom hinge beam, the middle hinge beam and the top hinge beam to form the energy-consumption yield wall group. According to the invention, as each component is mechanically connected, after an earthquake occurs, if a certain component is partially damaged, the replacement can be easily realized; the structural design aims at keeping the elastic state of the bottom hinge beam, the top hinge beam, the middle hinge beam and the hinge column all the time under rare earthquakes. Meanwhile, the disassembly and the replacement of all parts are convenient.
Description
Technical Field
The invention relates to the technical field of civil engineering damping, in particular to an assembled modularized self-resetting controllable hinge energy consumption wall and an assembling method thereof.
Background
At present, china is in an important stage of deep development of industrialization, marketization and internationalization, and the industrialized building can improve the construction speed, improve the working environment and the production efficiency, and is a trend of development of the future building industry. The assembled building with the advantages of high efficiency, energy saving, controllable quality and environment protection is a necessary way for the industrialization, the greenization and the sustainable development of the building industry. The traditional assembled reinforced concrete shear wall structure has sufficient shear resistance, but has insufficient ductility and energy consumption, and the energy consumption and energy consumption of the structure pass through reinforced concrete. In addition, the large shear wall is required to be split along the horizontal and vertical directions for convenient transportation and on-site hoisting, and although the energy consumption elements are introduced into the joint, the problems of complex structure, poor connection performance, low construction efficiency, difficult detection and repair and the like are solved, and the structural damage is still at the cost of damage to the joint of the structural members and damage to the structural members, so that the structural repair is difficult and even reconstruction is performed, and the use in a seismic region is limited. The research and development of the assembled energy consumption wall with excellent anti-seismic performance, modularization, easy disassembly, simple structure, clear stress and easy restoration function after earthquake has very important practical significance for popularization and application of an assembled structure.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide an assembled self-resetting controllable hinge energy consumption wall, which aims to solve the problems of large variable formwork, poor deformability, material damage caused by deformation, difficult post-earthquake repair, difficult component replacement, incapability of resetting and poor energy consumption capability of the assembled shear wall in the prior art, and realize the design purposes of no or low damage of the structure during earthquake, easy replacement and repairability after the earthquake.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an assembled modularized self-resetting controllable hinge energy consumption wall comprises a hinge column, a bottom hinge beam, a top hinge beam, a middle hinge beam, a resetting system, a friction wall, a shear wall and a yield wall,
the hinge columns, the bottom hinge beams, the top hinge beams and the middle hinge beams are spliced to form a double-layer frame structure; a reset system is arranged at the joint of each hinge post and the beam; the lower ends of the two hinge posts of the first layer are respectively connected with the upper parts of the two ends of the bottom hinge beam, and the upper ends of the two hinge posts of the first layer are respectively connected with the lower parts of the two ends of the middle hinge beam; the lower ends of the two hinge posts of the second layer are respectively connected with the upper parts of the two ends of the middle hinge beam, and the upper ends of the two hinge posts are respectively connected with the lower parts of the two ends of the top hinge beam; the double-layer frame structure is provided with at least one group, and a plurality of groups of double-layer frame structures are stacked and spliced;
Two ends of the friction wall are respectively connected with the hinge posts; two sides of the shear wall are respectively connected with the bottom hinge beam, the middle hinge beam and the top hinge beam to form an energy-consumption shear wall group; or the yield wall replaces the shear wall and the friction wall, and the yield wall is connected with the hinge column, the bottom hinge beam, the middle hinge beam and the top hinge beam to form the energy-consumption yield wall group.
The resetting system comprises arch springs and screws, two arch springs are buckled and overlapped at the opening ends to form a resetting unit, a plurality of resetting units are overlapped, and the resetting units penetrate into the screws in sequence to be connected to form a spring group.
The bottom hinge beam comprises a bottom main beam, a bottom left lug plate, a bottom right lug plate, a bottom beam connecting piece, a bottom beam first limit hole and a bottom beam second limit hole; the top hinge beam comprises a top main beam, a top left lug plate, a top right lug plate, a top beam connecting piece, a top beam first limiting hole, a top beam second limiting hole, and a bottom hinge beam or the left lug plate and the right lug plate of the top hinge beam are respectively and symmetrically connected to the lower parts of two ends of the beam, the connecting piece is connected to the axis of the side surface of the beam, and the central section of the connecting piece is overlapped with the central section of the beam;
the middle hinge beam comprises a middle main beam, a middle left lug plate, a middle right lug plate, a middle beam first connecting piece, a middle beam second connecting piece, a middle beam first limiting hole and a middle beam second limiting hole, wherein the middle left lug plate and the middle right lug plate are respectively and symmetrically connected to the upper parts of two ends of the beam, the connecting pieces are connected to the side surface axes of the beam, and the central section of the connecting pieces coincides with the central section of the beam;
The hinge post comprises a main post, an upper single lug plate, a lower single lug plate and a post side connecting piece, wherein the upper single lug plate and the lower single lug plate are respectively connected to the upper end part and the lower end part of the main post;
the top hinge beam, the bottom hinge beam, the middle hinge beam and the hinge column are connected with the pin shaft through the end lug plate; the friction wall is connected with the hinge post side connecting piece by bolts; the shear wall is connected with side connectors of the top hinge beam, the bottom hinge beam and the middle hinge beam by bolts.
The friction wall and the shear wall are divided into a multi-layer structure, namely a friction layer, a steel plate layer and a concrete layer; the four sides of the yield wall are provided with holes and are made of a low yield point steel plate Q235;
the friction wall is provided with an arc-shaped hole, the hole form is determined according to the geometric motion trail of the point on the friction wall relative to the shear wall, and the highest position of the mounting hole is assumed to beThe track length range is: />The thickness direction of the steel plate is designed to be of a 3-layer structure, the outermost layer is reinforced concrete, the middle layer is a steel plate with a 3mm protruding point, and the inner layer is a friction surface; the contact positions of the steel reinforcement cage and the steel plate in the outer layer of reinforced concrete are all spot-welded together; the friction layer is made of polyurethane rubber, and the thickness of the friction layer is 3 mm-5 mm. To enhance the cooperative action of the reinforced concrete layer and the steel plate layer; the bulges on the steel plate are used for increasing the contact area with the friction layer and enhancing the bonding strength of the friction layer; the friction layer is made of polyurethane rubber, the thickness of the friction layer is 3 mm-5 mm, and the rubber layer has certain deformability, so that the installation and the prestressing force application of the shear wall are facilitated; because the friction wall only needs to bear horizontal shearing force, longitudinal steel bars are required to be arranged along the horizontal direction of the friction wall so as to meet the stress requirement of the friction wall.
The shear wall is provided with holes at the corresponding positions relative to the arc holes of the friction wall, the friction wall and the shear wall are connected into a whole through bolts, prestress is applied, the shear wall is designed to be of a 3-layer structure along the thickness direction, the outermost layer is reinforced concrete, the middle layer is a steel plate with 3mm protruding points, and the inner layer is a friction surface; and the contact positions of the steel reinforcement cage and the steel plate in the outer layer of reinforced concrete are all spot-welded together. To enhance the cooperative action of the reinforced concrete layer and the steel plate layer; the bulges on the steel plate are used for increasing the contact area with the friction layer and enhancing the bonding strength of the friction layer; the friction layer adopts viscous glue, and this glue film has certain deformability, and the installation of the shear force wall of being convenient for and exerting prestressing force.
An oval slot is formed in the arched spring.
Two limiting holes are formed in the lug plates of the top hinge beam, the middle hinge beam and the bottom hinge beam.
The upper lug plates and the lower lug plates of the top hinge beam, the middle hinge beam and the bottom hinge beam are respectively double-lug plates, and the lug plates at the column hinge end are respectively single-lug plates; the hinge column is I-shaped steel, rectangular concrete core steel pipe or round concrete core steel pipe.
The assembly method of the assembled modularized self-resetting controllable hinge energy consumption wall is characterized by comprising the following steps of:
S1, anchoring a bottom hinge beam on a foundation through bolts;
s2, a left lug plate and a left lug plate of the bottom hinge beam are respectively connected with lower lug plates of the two hinge columns by adopting pin shafts; the bottom hinge beam and hinge column beam column node area is connected with a reset system;
s3, connecting the upper lug plates of the two hinge columns with the middle left lug plate and the middle right lug plate at the lower end of the middle hinge beam by adopting pin shafts, connecting the middle hinge beam with a hinge column joint area to a reset system, and then establishing an independently supported frame;
s4, connecting the friction wall with a column side connecting piece of the hinge column through bolts, and connecting the shear wall with a bottom beam connecting piece of a bottom hinge beam and a middle beam second connecting piece of a middle hinge beam through bolts;
s5, connecting lower single lug plates of the two corner posts with a middle left lug plate and a middle right lug plate at the upper end of a middle hinge beam by adopting pin shafts, and connecting a middle hinge beam and a hinge post beam column joint area with a reset system;
s6, connecting upper single lug plates of the two corner posts with a top left lug plate and a top right lug plate at the upper ends of the top hinge beams by adopting pin shafts, and connecting a reset system in a joint area of the top hinge beams and the hinge post beams;
s7, connecting the friction wall with a column side connecting piece of the hinge column through a bolt, and connecting the friction wall with a top beam connecting piece of a top hinge beam and a middle beam first connecting piece of a middle hinge beam through a bolt;
S8, respectively placing bolt rods in the first limit hole of the bottom beam, the second limit hole of the bottom beam, the first limit hole of the top beam, the second limit hole of the top beam, the first limit hole of the middle beam and the second limit hole of the middle beam, and fixing by adopting nuts;
s9, reserving hole connecting screws on the friction wall and the shear wall and applying prestress;
s10, the yield wall replaces the shear wall and the friction wall to adjust the connection mode of the steps S7, S8 and S9.
Further, the top hinge beam comprises a main beam, a left lug plate, a right lug plate and a side connecting piece; 4 bolt holes are reserved on the lower flange plates at the two ends of the main beam, the positions of the bolt holes are symmetrically distributed along two axes of the section of the main beam, the distance between the bolt holes and the section of the flange is 1/2 of the width of the section of the arched spring, and the distance between the bolt holes and the flange is at least greater than 50mm; welding stiffening ribs between the main beam end flanges and the web plates, wherein the stiffening ribs are close to the central axes of the bolt holes; the side connecting piece is welded at the position of the flange web plate of the main beam, the distance between the bolt holes of the side connecting piece and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes;
the middle hinge beam comprises a main beam, an upper left lug plate, a lower left lug plate, an upper right lug plate, a lower right lug plate and an upper side connecting piece, wherein 4 bolt holes are reserved at the upper and lower flange plates at the two ends of the main beam respectively, the positions of the bolt holes are symmetrically distributed along two axes of a column section, the distance between the bolt holes and the flange section is 1/2 of the width of an arched spring section, and the distance between the bolt holes and the flange edge is at least greater than 50mm; welding stiffening ribs between the main beam end flanges and the web plates, wherein the stiffening ribs are close to the central axes of the bolt holes; the upper side connecting piece and the lower side connecting piece are welded at the position of the flange web plate of the main beam, the distance between the bolt holes of the side connecting pieces and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes; the bottom hinge beam and the foundation are anchored by high-strength bolts, and stiffening ribs are welded between the bolt holes;
The bottom hinge beam comprises a main beam, a left lug plate, a right lug plate and a side connecting piece; 4 bolt holes are reserved on the upper flange plates at the two ends of the main beam, the positions of the bolt holes are symmetrically distributed along two axes of the section of the main beam, the distance between the bolt holes and the section of the flange is 1/2 of the width of the section of the arched spring, and the distance between the bolt holes and the flange is at least greater than 50mm; welding stiffening ribs between the main beam end flanges and the web plates, wherein the stiffening ribs are close to the central axes of the bolt holes; the side connecting piece is welded at the position of the flange web plate of the main beam, the distance between the bolt holes of the side connecting piece and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes; the bottom hinge beam is anchored with the foundation by adopting high-strength bolts, and stiffening ribs are welded between bolt holes connected with the foundation;
the hinge post comprises a main post, an upper lug plate, a lower lug plate and a side connecting piece, wherein the upper lug plate and the lower lug plate are respectively composed of double lug plates, the upper lug plate and the lower lug plate are respectively connected to the upper end part and the lower end part of the main post, two horizontal steel plates are welded at the two ends of the main post, 4 bolt holes are reserved on the horizontal steel plates, the positions of the bolt holes are respectively symmetrical along two axes of a post section, the distance between each bolt hole and the edge of the welding part of the horizontal steel bar and a girder flange is 1/2 of the width of the arched spring section, and the distance between each bolt hole and the other edge of the horizontal steel plates is at least more than 50mm; welding stiffening ribs between the steel plates and the web plates, wherein the stiffening ribs are close to the central axis of the web plate of the main column; the side connecting piece is welded at the position of the main column flange web plate, the distance between the bolt holes of the side connecting piece and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes;
The resetting system comprises a plurality of arch springs and a screw rod, wherein the width of each arch spring is smaller than 1/2 of the height of the column, the length is equal to the width of the column, and two holes are formed in each hole; overlapping and oppositely overlapping a plurality of arch springs to form a spring set, placing the spring set in a beam column connecting area, sequentially penetrating through bolt holes reserved on a main beam, the arch springs and a main column by using high-strength bolt rods, and connecting by using high-strength nuts;
the friction wall comprises a structural wall and a friction surface, wherein the structural wall adopts reinforced concrete with a steel plate on one side, rectangular steel frames are arranged around the structural wall, and the friction surface is bonded on the other side of the steel plate; arc track holes are formed in the friction wall, and the shape of the holes is a track of the mutual movement between the friction wall and the shear wall under the action of an earthquake;
the shear wall comprises a structural wall and a friction surface, wherein the structural wall adopts reinforced concrete with a steel plate on one side, rectangular steel frames are arranged around the structural wall, and the friction surface is bonded on the other side of the steel plate; the shear wall is provided with a hole corresponding to the middle of the arc hole of the friction wall, and then the friction wall and the shear wall are connected into a whole through a high-strength bolt;
the further yielding wall is made of low yield point steel, and 4 sides are provided with holes;
further, the upper ear plate and the lower ear plate of the top hinge beam, the middle hinge beam and the bottom hinge beam are double-ear plates;
Further, two limiting holes are respectively formed in the edges of the upper lug plate and the lower lug plate of the top hinge beam, the middle hinge beam and the bottom hinge beam at the symmetrical axis positions of the lug plates;
further, the bolt rod in the connecting system is made of memory alloy, and is pre-stressed after being installed;
further, bolt hole strip holes are formed in the arch springs;
furthermore, the yield strength in the structure can replace a shear wall and a friction wall to consume energy by steel plate yield;
compared with the prior art, the invention has the following beneficial effects:
according to the assembled modularized self-resetting controllable hinge energy consumption wall, the deformation performance of the shear wall is improved through the hinge connection of the columns, the arched springs and the memory alloy rods are arranged at each hinge connection position to serve as a resetting system, the resetting force is provided through the prestress applied by the memory alloy and the resetting force of the arched springs, and the resetting system is convenient to install and replace; the shear walls are adopted to consume energy through mutual friction movement, so that not only is the lateral rigidity provided for the shear walls provided, but also sufficient energy consumption capability is provided, and the energy consumption performance between the shear walls can be controlled by controlling the pretightening force of the screw; the invention has the advantages of simple structure, convenient installation, low cost and easy wide popularization.
Furthermore, the hinge joint is arranged at the joint of the beam and the column, so that a sufficient deformation foundation is provided for the shear wall, and the hinge joint can better transfer the axial force and the shearing force transferred by the beam and the column, thereby avoiding structural damage caused by overlarge deformation of the structure;
furthermore, on the basis of sufficient deformation of the shear wall, the relative rotation between the column and the beam is adopted to drive the clip wall to rub and consume energy, so that the energy consumption performance of the shear wall is improved;
furthermore, the friction surfaces between the shear walls are bonded on the steel plates, friction performance recovery can be realized through reapplying and brushing after earthquake, repairability of the wall is realized, and if the wall is damaged by concrete, a new wall can be directly replaced;
furthermore, a reset system is arranged at the joint of the beam column and the hinge, the arched spring can be recovered after deformation, and the memory alloy rod applying the prestress provides reset force for the structure, so that the residual deformation of the structure is reduced;
furthermore, the whole shear wall system is provided with four lines of defense, the first line is a reset system, the second line is the friction force between the shear wall and the friction wall, the third line is the friction wall, the fourth line is a hinged frame and the friction wall, and multiple life security guarantees are provided for the novel structure body type;
further, the upper lug plates and the lower lug plates of the top hinge beam, the middle hinge beam and the bottom hinge beam are double-lug plates, the end parts of the hinge columns are single-lug plates, and after the single-lug plates are connected with the double-lug plates, the central line of the single-lug plates is always positioned on the main central axis, so that the bias stress of the column ends is avoided;
Further, the upper ear plate and the lower ear plate of the hinge post are respectively provided with two limiting holes, and the two limiting holes are symmetrical relative to the central axis of the ear plate surface and are used for limiting the overlarge rotation displacement of the hinge point;
according to the invention, as each component is mechanically connected, after an earthquake occurs, if a certain component is partially damaged, the replacement can be easily realized; the structural design target is that under rare earthquakes, the bottom hinge beam, the top hinge beam, the middle hinge beam and the hinge post are always kept in an elastic state, the memory alloy rod is in a recoverable variable range, the memory alloy rod is always kept in an elastic state, the safety of a main structure is ensured, and the diameter range of the memory alloy rod is as follows: 15-30 mm, and generally 1/10-1/20 of the column width; the arch spring, the shear wall and the friction wall can be repaired and replaced, so that the repair workload of the structure after earthquake is greatly reduced, the damage position of the structure is preset, and the purpose of controllable structural damage is realized. Wherein: (1) the arch spring is designed mainly to be suitable for the requirement of the installation space of cubes with larger length-width ratio in the beam column node area; the spring can provide sufficient restoring force for the structure through superposition or combination of spring stiffness required by the structure; in addition, the springs are symmetrically arranged at the beam end, when one side is damaged, the other side can still work normally, the rotation of the hinge point of the beam end can still be avoided, and the arched springs are directly replaced structurally only by disassembling the memory alloy rod; an oval-shaped spring is arranged on the arch-shaped spring, so that the connection of the springs is facilitated. (2) The shear wall and the friction wall decouple the vertical dead weight and the horizontal shear force of the traditional shear wall, when an earthquake happens, the horizontal shear force is mainly born by the friction force between the friction force and the shear wall and the horizontal bearing force with the friction force, namely the friction force and the axial bearing force, which is equivalent to that the whole friction wall system is provided with 4 safety defense lines: the hinge frame resetting system is a first defense line, resetting force is mainly provided by an arch spring, and the hinge frame provides lateral rigidity for the structure; the friction force between the friction wall and the shear wall is a second defense line, and mainly provides side rigidity resistance and friction energy consumption for the structure; once the friction surface layers of the shear wall and the friction wall are damaged, the friction wall has a certain horizontal bearing capacity and can continuously provide horizontal shear force for the structure, and the friction wall is a third defense line for the structure; once the friction wall is broken, the shear wall is equivalent to a common shear wall, namely, the shear wall can bear vertical dead weight at horizontal shear force, and the shear wall is the last defense line of the structure; (3) the shear wall is designed into a 3-layer structure along the thickness direction, the outermost layer is reinforced concrete, the middle layer is a steel plate with a 3mm protruding point, and the inner layer is a friction surface; the contact positions of the reinforcement cage and the steel plate in the outer layer of reinforced concrete are all spot-welded together so as to enhance the joint synergistic effect of the reinforced concrete layer and the steel plate layer; the bulges on the steel plate are used for increasing the contact area with the friction layer and enhancing the bonding strength of the friction layer; the friction layer adopts viscous glue, and the glue layer has certain deformability, so that the installation of the shear wall and the application of prestress are facilitated; (4) the friction wall is different from the shear wall in structure layer structure because the friction wall only needs to bear horizontal shearing force and longitudinal steel bars are arranged along the horizontal direction of the friction wall so as to meet the stress requirement of the friction wall. The arch spring and the friction wall can be used independently, only the friction wall is used, the whole structure system is equivalent to friction of two plates, and the structure hysteresis curve is square at the moment, and the structure does not have restoring force at the moment; the whole structure is equivalent to a nonlinear spring only by adopting an arch spring, so that the energy consumption capability is poor; compared with the traditional assembled reinforced concrete and steel-concrete combined shear wall, the construction site has no wet operation, so that convenient construction and assembly are realized; according to the invention, the energy consumption of the traditional shear wall structure at the cost of material damage is changed, the energy consumption is realized by adopting mutual friction between the shear wall and the friction wall, and the friction layers on the shear wall and the friction wall can be painted again after the shear wall and the friction wall are used; the invention avoids the phenomenon that the plastic hinge of the traditional shear wall structure only has a damage mechanism of a bottom layer, and the self-resetting hinge which can rotate is arranged in the direct shear wall system, so that the deformation performance of the shear wall is greatly improved, and the resetting capability is provided for the structure; the stiffness and the resetting performance of the structure can be effectively adjusted by adjusting the sections and the superposition modes of the memory alloy rods and the arched springs, the superposition quantity of the arched springs can be increased according to the restoring force of the structure requirement, when the bearing force of a single arched spring does not meet the structure requirement, the bearing force of the arched springs can be increased by superposing the quantity of the arched springs, the superposition quantity is larger and is equivalent to that of a plurality of springs connected in parallel, the stiffness of the springs can be increased, the quantity of the arched springs to be matched depends on the deformation range and the size of the installation space, the stiffness of the arched springs is unchanged after the matching, the deformation range is only increased, the resetting of the structure is realized to a great extent, the restoring of the structure performance can be realized by replacing the arched springs after earthquake, and once the arched spring platform has unrecoverable deformation exceeding 3mm or macroscopic deformation under the measurement of a level ruler, the springs need to be replaced; compared with the traditional members of the same type, the invention reduces the use of a welding connection mode, and the main body stress connecting pieces are all connected by bolts, so that the residual stress generated by welding is avoided; because the energy dissipation elements are friction effects among the shear walls, the structural form determines that the energy dissipation performance is more stable and reliable, the damage form is easy to control, the damage part can be pre-protected, the performance of the energy dissipation steel plate in the form can be effectively ensured, and the energy dissipation steel plate is easy to widely apply and popularize.
Drawings
FIG. 1 is a schematic diagram of an assembled modular self-resetting controllable hinge energy dissipating wall according to the present invention;
FIG. 2a is a schematic view of a hinge post structure of an assembled modular self-resetting controllable hinge energy dissipating wall according to the present invention;
FIG. 2b is a front view of a hinge post; FIG. 2c is a top view of a hinge post; FIG. 2d is a side view of a hinge post;
FIG. 3a is a schematic view of a bottom hinge beam structure of an assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 3b is a front view of the bottom hinge beam; FIG. 3c is a top view of the bottom hinge beam; FIG. 3d is a cross-sectional view taken from 1-1 of FIG. 3 b;
FIG. 4a is a schematic view of a middle hinge beam structure of an assembled modular self-resetting controllable hinge energy dissipating wall according to the present invention;
FIG. 4b is a front view of a center hinge beam; FIG. 4c is a top view of the center hinge beam; FIG. 4d is a cross-sectional view taken from 1-1 of FIG. 4 b;
FIG. 5a is a schematic view of a top hinge beam structure of an assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 5b is a front view of a top hinge beam; FIG. 5c is a top view of the top hinge beam; FIG. 5d is a cross-sectional view taken from 1-1 of FIG. 5 b;
FIG. 6a is a schematic diagram of a reset system of an assembled modular self-resetting controllable hinge energy dissipating wall according to the present invention;
FIG. 6b is a schematic view of an arch spring; FIG. 6c is a top view of an arch spring; FIG. 6d is a side view of an arch spring;
FIG. 7a is a schematic view of the friction wall structure of the assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 7b is a schematic view of the friction wall layering structure of the assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 8a is a schematic view of a shear wall structure of an assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 8b is a schematic view of a shear wall layered structure of an assembled modular self-resetting controllable hinged energy dissipating wall of the present invention;
FIG. 9 is a schematic view of the yield wall structure of the fabricated modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 10 is a schematic view of a force model of an assembled modular self-resetting controllable hinge energy dissipating wall of the present invention;
FIG. 11 is a graph showing the yield experimental effect of the fabricated modular self-resetting controllable hinge energy dissipation wall model;
FIG. 12 is a schematic diagram of a modular self-resetting controllable hinge energy dissipating wall model hysteresis curve;
fig. 13 is a schematic view of an assembled modular self-resetting controllable hinge energy dissipating wall using yield wall structure according to the present invention.
The hinge column 1, the bottom hinge beam 2, the top hinge beam 3, the middle hinge beam 4, the reset system 5, the friction wall 6, the shear wall 7, the yield wall 8, the main column 011, the upper single ear plate 012, the lower single ear plate 013, the column side connecting piece 014, the bottom main beam 021, the bottom left ear plate 022, the bottom right ear plate 023, the bottom beam connecting piece 024, the bottom beam first limiting hole 025, the bottom beam second limiting hole 026, the top main beam 031, the top left ear plate 032, the top right ear plate 033, the top beam connecting piece 034, the top beam first limiting hole 035, the top beam second limiting hole 036, the middle main beam 041, the middle left ear plate 042, the middle right ear plate 043, the middle beam first connecting piece 044, the middle beam second connecting piece 045, the middle beam first limiting hole 046, the middle beam second limiting hole 047, the arch spring 051, the memory alloy rod 052, the first friction layer 061, the first steel layer 063, the first friction layer 072, the second concrete layer 072, and the second concrete layer.
Detailed Description
An assembled modularized self-resetting controllable hinge energy consumption wall comprises a hinge column 1, a bottom hinge beam 2, a top hinge beam 3, a middle hinge beam 4, a resetting system 5, a friction wall 6, a shear wall 7 and a yield wall 8; the hinge post 1, the bottom hinge beam 2, the top hinge beam 3 and the middle hinge beam 4 are spliced to form a double-layer frame structure; a reset system is arranged at the joint of each hinge post and the beam; the lower ends of the two hinge posts of the first layer are respectively connected with the upper parts of the two ends of the bottom hinge beam, and the upper ends of the two hinge posts of the first layer are respectively connected with the lower parts of the two ends of the middle hinge beam; the lower ends of the two hinge posts of the second layer are respectively connected with the upper parts of the two ends of the middle hinge beam, and the upper ends of the two hinge posts are respectively connected with the lower parts of the two ends of the top hinge beam; the double-layer frame structure is provided with at least one group, and a plurality of groups of double-layer frame structures are stacked and spliced;
two ends of the friction wall are respectively connected with the hinge posts; two sides of the shear wall are respectively connected with the bottom hinge beam, the middle hinge beam and the top hinge beam to form an energy-consumption shear wall group; or the yield wall replaces the shear wall and the friction wall, and the yield wall is connected with the hinge column, the bottom hinge beam, the middle hinge beam and the top hinge beam to form the energy-consumption yield wall group. The resetting system comprises arch springs and screws, two arch springs are buckled and overlapped at the opening ends to form a resetting unit, a plurality of resetting units are overlapped, and the resetting units penetrate into the screws in sequence to be connected to form a spring group. The bottom hinge beam comprises a bottom main beam 021, a bottom left lug plate 022, a bottom right lug plate 023, a bottom beam connecting piece 024, a bottom beam first limit hole 025 and a bottom beam second limit hole 026; the top hinge beam comprises a top main beam 031, a top left lug plate 032, a top right lug plate 033, a top beam connecting piece 034, a top beam first limit hole 035, a top beam second limit hole 036, a bottom hinge beam or a left lug plate and a right lug plate of the top hinge beam are respectively and symmetrically connected to the lower parts of two ends of the beam, the connecting piece is connected to the side surface axis of the beam, and the central section of the connecting piece coincides with the central section of the beam;
The middle hinge beam comprises a middle main beam 041, a middle left ear plate 042, a middle right ear plate 043, a middle beam first connecting piece 044, a middle beam second connecting piece 045, a middle beam first limiting hole 046 and a middle beam second limiting hole 047, wherein the middle left ear plate and the middle right ear plate are respectively and symmetrically connected to the upper parts of two ends of the beam, the connecting pieces are connected to the side surface axes of the beam, and the central section of the connecting pieces coincides with the central section of the beam;
the hinge post comprises a main post 011, an upper single ear plate 012, a lower single ear plate 013, a post side connecting piece 014, wherein the upper single ear plate and the lower single ear plate are respectively connected to the upper end part and the lower end part of the main post, the post side connecting piece is connected to the axis of the post side surface, and the center section of the post side connecting piece is overlapped with the center section of the post; the method comprises the steps of carrying out a first treatment on the surface of the
The top hinge beam, the bottom hinge beam, the middle hinge beam and the hinge column are connected with the pin shaft through the end lug plate; the friction wall is connected with the hinge post side connecting piece by bolts; the shear wall is connected with side connectors of the top hinge beam, the bottom hinge beam and the middle hinge beam by bolts. The friction wall and the shear wall are divided into a multi-layer structure, namely a friction layer, a steel plate layer and a concrete layer; the four sides of the yield wall are provided with holes and are made of a low yield point steel plate Q235. The friction wall is provided with an arc hole. The shear wall is provided with holes at the corresponding positions relative to the arc holes of the friction wall, the friction wall and the shear wall are connected into a whole through bolts, prestress is applied, the shear wall is designed to be of a 3-layer structure along the thickness direction, the outermost layer is reinforced concrete, the middle layer is a steel plate with 3mm protruding points, and the inner layer is a friction surface; and the contact positions of the steel reinforcement cage and the steel plate in the outer layer of reinforced concrete are all spot-welded together. An oval slot is formed in the arched spring. Two limiting holes are formed in the lug plates of the top hinge beam, the middle hinge beam and the bottom hinge beam. The upper lug plates and the lower lug plates of the top hinge beam, the middle hinge beam and the bottom hinge beam are respectively double-lug plates, and the lug plates at the column hinge end are respectively single-lug plates; the hinge column is I-shaped steel, rectangular concrete core steel pipe or round concrete core steel pipe.
The present invention is further explained below with reference to the drawings and the embodiments, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.
The invention discloses an assembled self-resetting controllable hinge energy consumption wall which is characterized by comprising hinge columns 1, bottom hinge beams 2, top hinge beams 3, middle hinge beams 4, a resetting system 5, friction walls 6 and shear walls 7, wherein lower single ear plates 013 of two first hinge columns 1 are respectively connected with bottom left ear plates 022 and bottom right ear plates 023 at the upper parts of two ends of the bottom hinge beams 2, upper single ear plates 012 of two first hinge columns 1 are respectively connected with middle left ear plates 042 and middle right ear plates 043 at the lower parts of two ends of the middle hinge beams 3, and two sides of the shear walls 7 are respectively connected with bottom beam connecting pieces 024 of the bottom hinge beams 2 and middle beam second connecting pieces 045 of the middle hinge beams 4; the two layers and above are respectively connected with a middle left ear plate 042 and a middle right ear plate 043 which are arranged at the upper parts of the two ends of the middle hinge beam 4, a lower single ear plate 013 at the lower ends of the two hinge columns 1 is respectively connected with a middle left ear plate 042 and a middle right ear plate 043 which are arranged at the lower parts of the two ends of the middle hinge beam 4, and two sides of the shear wall 7 are respectively connected with a middle beam first connecting piece 044 and a middle beam second connecting piece 045 of the middle hinge beam 4; the lower single ear plates 013 of the two hinge columns 1 on the top layer are respectively connected with the middle left ear plates 042 and the middle right ear plates 043 at the upper parts of the two ends of the middle hinge beam 4, the upper single ear plates 012 of the two hinge columns 1 are respectively connected with the top left ear plates 032 and the top right ear plates 033 at the lower parts of the two ends of the top hinge beam 3, and the two sides of the vertical shear wall 7 are respectively connected with the top beam connecting piece 034 of the top hinge beam 3 and the middle beam first connecting piece 044 of the middle hinge beam 4; two reset systems 5 are symmetrically arranged at the joint of each beam and each column, and two ends of each reset system 5 are respectively connected with the beam end and the column end by adopting a memory alloy rod 052; two ends of the friction wall 6 are respectively connected with column side connecting pieces 014 of the hinge column 1;
Hinge post 1 includes main post 011, upper monaural plate 012, lower monaural plate 013, post side connector 014; the upper single ear plate 012 and the lower single ear plate 013 are respectively made of single ear plates, the joint of the column ends is set to be a single ear plate, the single ear plates are respectively welded on two horizontal steel plates welded at the two ends of the main column 011, and the ear plates are positioned on the main axis of the section of the column and are in weak axial symmetry about the section of the column, so that the column is prevented from being biased; an upper monaural plate 012 and a lower monaural plate 013; 4 bolt holes are reserved on the horizontal steel plate and used for penetrating through the memory alloy rod 052, the arch springs 051 are connected to the column ends, the positions of the bolt holes are respectively symmetrical along two axes of the column section, the distance between the bolt holes and the edge of the welding part of the horizontal steel bar and the flange of the main beam is 1/2 of the width of the arch spring section, and the distance between the bolt holes and the other edge of the horizontal steel plate is at least greater than 50mm; welding stiffening ribs between the steel plate and the web of the main column 011, wherein the stiffening ribs are close to the central axis of the web of the main column, so that the plane rigidity of the joint area is enhanced; the bolt holes on the column side connecting pieces 014 are used for being connected with the friction wall 6, welded at the position of the main column flange web plate, the distance between the bolt holes of the side connecting pieces and the edge is at least more than 50mm, stiffening ribs are welded between each bolt hole, and the strength of the side connecting pieces is enhanced;
The bottom hinge beam 2 comprises a bottom main beam 021, a bottom left lug plate 022, a bottom right lug plate 023, a bottom beam connecting piece 024, a bottom beam first limit hole 025 and a bottom beam second limit hole 026; the bottom left ear plate 022 and the bottom right ear plate 023 are double-ear plates which are symmetrically welded on two sides of a main strong shaft, the middle gap is the thickness of the lower single ear plate 013 of the hinge 1, and the double-ear plates are adopted to mainly facilitate centering alignment of the hinge 1; 4 bolt holes are reserved on the upper flange plates at the two ends of the first main beam, the positions of the bolt holes are symmetrically distributed along two axes of the section of the beam, the distance between the bolt holes and the section of the flange is 1/2 of the width of the section of the arch spring, the distance between the bolt holes and the flange edge is at least greater than 50mm, and the bolt holes are used for connecting the arch spring 051 at the beam end through a memory alloy rod 052; welding stiffening ribs between flanges of the bottom girder 2 end welding lug plates and the web plates, wherein the stiffening ribs are close to the central axes of the bolt holes, so that the out-of-plane rigidity of the girder end part is enhanced; the bottom beam connecting piece 024 is welded at the position of the flange web plate of the bottom main beam 021, the distance between the bolt holes of the side connecting piece and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes; the bottom hinge beam 2 is anchored with the foundation by adopting high-strength bolts, stiffening ribs are welded between the bolt holes connected with the foundation, and the overall rigidity of the bottom hinge beam 2 is enhanced; the screws are placed in the first limit holes 025 and the second limit holes 026 of the bottom beam, so that the mechanical hinge rotation angle can be limited to be overlarge;
The top hinge beam 3 comprises a top main beam 031, a top left lug plate 032, a top right lug plate 033, a top beam connecting piece 034, a top beam first limit hole 035 and a top beam second limit hole 036; the top left ear plate 032 and the top right ear plate 033 adopt double ear plates which are symmetrically welded on two sides of a main strong shaft, and the middle gap is the thickness of a lower single ear plate 013 of the column hinge 1; 4 bolt holes are reserved on the upper flange plate and the lower flange plate at the two ends of the top girder 031 respectively, the positions of the bolt holes are symmetrically distributed along two axes of the column section, the distance between the bolt holes and the flange section is 1/2 of the width of the arched spring section, and the distance between the bolt holes and the flange edge is at least greater than 50mm; welding stiffening ribs between the flange at the 031 end of the top girder and the web plate, wherein the stiffening ribs are close to the central axis of the bolt hole; the top beam connecting piece 034 is welded at the position of the flange web plate of the top girder 031, the distance between the bolt holes of the side connecting piece and the edge is at least more than 50mm, and stiffening ribs are welded between every two bolt holes; the screws are placed in the first limit holes 025 and the second limit holes 026 of the bottom beam, so that the mechanical hinge rotation angle can be limited to be overlarge;
the middle hinge beam 4 comprises a middle main beam 041, a middle left ear plate 042, a middle right ear plate 043, a middle beam first connecting piece 044, a middle beam second connecting piece 045, a middle beam first limiting hole 046 and a middle beam second limiting hole 047; the middle left ear plate 042 and the middle right ear plate 043 adopt double ear plates which are symmetrically welded at two sides of a main strong shaft, and the middle gap is the thickness of a lower single ear plate 013 of the column hinge 1; 4 bolt holes are reserved on the upper flange plate and the lower flange plate at the two ends of the middle main beam 041 respectively, the positions of the bolt holes are symmetrically distributed along the two axes of the column section, the distance between the bolt holes and the flange section is 1/2 of the width of the arched spring section, and the distance between the bolt holes and the flange edge is at least greater than 50mm; welding stiffening ribs between the 041 end flanges of the middle main beam and the web plate, wherein the stiffening ribs are close to the central axes of the bolt holes; the middle beam first connecting piece 044 and the middle beam second connecting piece 045 are respectively welded at the positions of the flange webs of the middle main beam 041, the distance between the bolt holes of the side connecting pieces and the edges is at least more than 50mm, and stiffening ribs are welded between every two bolt holes; the screws are placed in the first limit holes 046 and the second limit holes 047 of the middle beam, so that the mechanical hinge rotation angle can be limited to be overlarge;
The reset system 5 comprises arched springs 051 and memory alloy rods 052, the width of each arched spring 051 is smaller than 1/2-1/3 of the column height, the length is equal to the column width, two holes are formed in each hole, and the memory alloy rods 052 conveniently penetrate through a plurality of overlapped arched springs 051; a plurality of arch springs 051 are overlapped and oppositely overlapped to form a spring group, the spring group is placed in a beam column connecting area, a memory alloy rod 052 sequentially penetrates through bolt holes reserved on a main beam, the arch springs 051 and a main column, and is connected by adopting a high-strength nut, and certain prestress is applied, so that the structure can be reset well;
the friction wall 6 comprises a first friction layer 061, a first steel plate layer 062, a first concrete layer 063; one side of the first steel plate layer 062 is poured with a first concrete layer 063, and the other side is bonded with a first friction layer 061; the friction wall 6 is provided with arc track holes, 4 arc track holes are formed in the figure, and the 4 holes are formed only in important structural support positions, so that not only can the friction surface be ensured to have sufficient normal phase load, but also the friction surface can be uniformly stressed to avoid stress concentration failure, the shape of the holes is the track of the mutual movement between the friction wall and the shear wall under the action of an earthquake, and the large-size holes in the friction wall 6 are prevented from weakening the strength of the wall;
Shear wall 7, second friction layer 071, second steel plate layer 072, second concrete layer 073; one side of the second steel plate layer 072 is poured with a second concrete layer 073, and the other side is bonded with a second friction layer 071; the shear wall 7 is provided with a hole corresponding to the middle of the arc hole of the friction wall, the maximum layering degree ensures the integrity of the vertical shear wall 7, and then the friction wall and the shear wall are connected into a whole through high-strength bolts;
in addition, the yield strength is directly connected with the column side connecting piece 014, the bottom beam connecting piece 024, the top beam connecting piece 034, the middle beam first connecting piece 044 and the middle beam second connecting piece 045 by bolts in the surrounding mode, and therefore the structure can be converted from friction energy consumption to yield energy consumption.
Referring to fig. 3, the assembly process of the assembled self-resetting controllable hinge energy consumption wall of the invention takes a two-storey building as an example, and comprises the following steps:
s1, anchoring a bottom hinged beam 2 on a foundation through a high-strength bolt; s2, a left ear plate 022 at the bottom and a right ear plate 023 at the bottom are respectively connected with a lower single ear plate 013 of two hinge posts 1 by adopting pin shafts; meanwhile, the beam column node areas of the bottom hinge beam 2 and the hinge column 1 are connected with the reset system 5, and then the two columns are independent and vertical, so that the arrangement of scaffolds can be effectively reduced; s3, upper single ear plates 012 of the two corner posts 1 are connected with a middle left ear plate 042 and a middle right ear plate 043 at the lower end of a middle hinge beam 4 by adopting pin shafts, a reset system 5 is connected in a beam column joint area of the middle hinge beam 4 and the hinge post 1, and then an independently supported frame is established; s4, connecting the friction wall 6 with a column side connecting piece 014 of the hinge column 1 through bolts, and connecting the shear wall 7 with a bottom beam connecting piece 024 of the bottom hinge beam 2 and a middle beam second connecting piece 045 of the middle hinge beam 4 through bolts; s5, the lower single lug plates 013 of the two corner posts 1 are connected with the middle left lug plate 042 and the middle right lug plate 043 at the upper end of the middle hinge beam 4 by adopting pin shafts, and the middle hinge beam 4 and a beam column joint area of the hinge post 1 are connected with a reset system 5; s6, connecting an upper single lug plate 012 of two corner posts 1 with a top left lug plate 032 and a top right lug plate 033 at the upper end of a top hinge beam 3 by adopting a pin shaft, and connecting a top hinge beam 3 with a beam column joint area of the hinge post 1 to form a resetting system 5; s8, respectively placing bolt rods in a bottom beam first limiting hole 025, a bottom beam second limiting hole 026, a top beam first limiting hole 035, a top beam second limiting hole 036, a middle beam first limiting hole 046 and a middle beam second limiting hole 047, and fixing by adopting nuts; s9, reserving holes on the friction wall 6 and the shear wall 7, putting screws into the holes, and applying prestress.
Working principle:
the assembled self-resetting controllable hinged energy consumption wall is connected with a building, and because the shear wall has push-pull symmetry, the stress state of the shear wall is always consistent no matter in a tension state or a compression state, as the hysteresis curve of the system of figure 10 is completely symmetrical left and right;
when the device is in a pushed state: referring to fig. 10.A and b, the beam-column joint area is always pulled by one side along the reset system symmetrically installed along the ear plate to form a side pressure, at this time, the column and the beam are relatively displaced due to the rotation of the mechanical hinge, the friction energy consumption is started between the two walls, and when the force is reduced, the pull structure is restored to the original state because the pretightening force of the reset system and the restoring force of the arch spring are larger than the friction force between the two walls, and the restoring force model is shown in fig. 10. C. The method comprises the steps of establishing an assembled modularized self-resetting controllable hinge energy consumption wall model, taking yield as an example (refer to fig. 11), knowing a hysteresis curve (refer to fig. 12), wherein when the shear wall is restored to an original position, the residual position is almost zero, and a first quadrant hysteresis curve is almost rectangular, so that the resetting performance is better.
The arched spring is specially manufactured according to the cube space of the beam column node connection area, and is convenient to install in the three-dimensional space; in addition, the arch spring is directly bent by spring steel, and the manufacturing is simple and convenient even aiming at different column widths; the length of the arch spring is equal to the width of the column, the thickness of the arch spring is generally 5-20 mm, the arch height is generally 1-3 times of the thickness of the arch spring, and the width of the horizontal platform is 1/3-1/8 of the section width of the whole arch spring; the cross-section width of the arch spring is The width of the horizontal table is +.>The net width of the inclined platform is +.>The width of the projection surface of the inclined platform is +.>The height of the arch spring is +.>The thickness of the arch spring is +.>Bearing capacity of the spring of the arch spring>And deformation->The calculation is as follows:
when the arch spring bearing capacity isDeformation of horizontal table>By bending deformation->And shear deformation composition->：
Deformation of inclined platformBy bending deformation->And shear deformation composition->：
Peak value of arch springAnd yield bearing capacity->The method comprises the following steps of:
to ensure that the arch spring has sufficient restoring force, the bearing force of the arch spring is 0.8。
When a larger bearing force is needed, the arch springs can be overlapped,arch spring load capacity after stacking of individual springsThe method comprises the following steps:
at this time, the matching number of the arch springs is determined according to the cube space height of the node area。
The hinge connection, otic placode and round pin axle remain elasticity throughout atress in-process, its characterized in that: the thickness of the single ear plate isThe width of the single ear plate is->The height of the single ear plate is +.>The method comprises the steps of carrying out a first treatment on the surface of the The distance between the two ears plates is->The thickness of the single-double-lug plate is->The width of the ear plate is->The height of the single ear plate is +.>The method comprises the steps of carrying out a first treatment on the surface of the Diameter of pin shaft->The structural constant load is->The maximum interlayer shear force of the structure under rare earthquakes is +.>The strength of the pin shaft needs to meet the following conditions:
The bearing bending stress of the pin shaft is as follows:
in the method, in the process of the invention,tensile yield strength of the steel material of the pin shaft;
the shear strength of the pin shaft is as follows:
in the method, in the process of the invention,the shear strength of the steel material of the pin shaft;
the pin shaft is subjected to bending moment and shear combined strength checking calculation simultaneously:
the bearing and shearing resistance of the single-lug plate respectively meet the following conditions:
in the method, in the process of the invention,and->Bending resistance and shear strength of steel materials of the ear plates respectively;
the pressure bearing and shearing resistance of the double-lug plate respectively meet the following conditions:
the bearing capacity of the yield wall is set to be respectively the maximum width and the minimum width of the section of the yield wall in consideration of the small width and thickness of the plateAnd->The maximum height and the minimum height are +.>And->The yield wall bearing capacity is calculated as follows:
the whole frame system has self-resetting function, and the structure needs resistance at the momentThe following needs need to be met:
/>
in the method, in the process of the invention,restoring force provided for the arch spring, +.>Restoring force provided for a memory alloy rod, +.>Friction force for friction between shear wall and friction wall, +.>Resistance provided to the yielding wall.
The whole frame system component is replaceable, and the whole friction wall system has 4 safety defense lines: the hinge frame resetting system is a first defense line, resetting force is mainly provided by an arch spring, and the hinge frame provides lateral rigidity for the structure; the friction force between the friction wall and the shear wall is a second defense line, and mainly provides side rigidity resistance and friction energy consumption for the structure; once the friction surface layers of the shear wall and the friction wall are damaged, the friction wall has a certain horizontal bearing capacity and can continuously provide horizontal shear force for the structure, and the friction wall is a third defense line for the structure; once the friction wall is broken, the shear wall is equivalent to a common shear wall, namely, the shear wall can bear vertical dead weight at horizontal shear force, and the shear wall is the last defense line of the structure; the damage sequence of the 4-fold defense line is arch spring damage, viscous damping surface damage on the friction wall and the shear wall, friction wall damage and shear wall damage; according to the design target of the shear system, the maximum level damage of the structure only reaches the second layer;
The structural arch spring is damaged, the friction surface is still indeterminate and damaged, so that the arch spring is replaced firstly, only one side of a node needs to be replaced each time when the arch spring is replaced, and meanwhile, when two sides are replaced, one side of the node is not supported, one side of a column is hinged, and the force borne by one side of the column is transferred to other components, so that unnecessary danger is caused; when the arch spring is replaced, the column bottom is replaced firstly, and then the column top is replaced in order to further stabilize the structure; after the arch spring is replaced, the friction wall can be detached for inspection, and the viscous layer can be repaired.
The friction wall is provided with arc-shaped holes for determining the geometric motion trail of points on the friction wall relative to the shear wall, and the coordinates of any point on the friction wall are @ and @ is @) When the friction wall rotatesθThe position of this point is changed to (+)>) And (5) the trajectory equation is obtained. />
Claims (7)
1. The assembled modularized self-resetting controllable hinge energy consumption wall is characterized by comprising a hinge column (1), a bottom hinge beam (2), a top hinge beam (3), a middle hinge beam (4), a resetting system (5), a friction wall (6), a shear wall (7) and a yield wall (8),
the hinge column (1), the bottom hinge beam (2), the top hinge beam (3) and the middle hinge beam (4) are spliced to form a double-layer frame structure; a reset system (5) is arranged at the joint of each hinge post and the beam; the lower ends of the first layer of two hinge posts (1) are respectively connected with the upper parts of the two ends of the bottom hinge beam (2), and the upper ends of the first layer of two hinge posts (1) are respectively connected with the lower parts of the two ends of the middle hinge beam (4); the lower ends of the two hinge columns (1) of the second layer are respectively connected with the upper parts of the two ends of the middle hinge beam (4), and the upper ends of the two hinge columns (1) are respectively connected with the lower parts of the two ends of the top hinge beam (3); the double-layer frame structure is provided with at least one group, and a plurality of groups of double-layer frame structures are stacked and spliced;
The friction wall (6) is respectively connected with the hinge columns (1), and the shear wall (7) is respectively connected with the bottom hinge beam (2), the middle hinge beam (4) and the top hinge beam (3) to form an energy consumption shear wall group; or the yield wall replaces the shear wall and the friction wall, and the yield wall is connected with the hinge column, the bottom hinge beam, the middle hinge beam and the top hinge beam to form an energy consumption yield wall group;
the resetting system comprises arch springs and screw rods, the opening ends of the two arch springs are buckled and overlapped to form a resetting unit, a plurality of resetting units are overlapped, and the resetting units sequentially penetrate into the screw rods to be connected to form a spring group;
the bottom hinge beam comprises a bottom main beam (021), a bottom left lug plate (022), a bottom right lug plate (023), a bottom beam connecting piece (024), a bottom beam first limit hole (025) and a bottom beam second limit hole (026); the top hinge beam comprises a top main beam (031), a top left lug plate (032), a top right lug plate (033), a top beam connecting piece (034), a top beam first limiting hole (035), a top beam second limiting hole (036), and a bottom hinge beam or the left lug plate and the right lug plate of the top hinge beam are respectively and symmetrically connected to the lower parts of the two ends of the beam, the connecting piece is connected to the side surface axis of the beam, and the central section of the connecting piece coincides with the central section of the beam;
the middle hinge beam comprises a middle main beam (041), a middle left ear plate (042), a middle right ear plate (043), a middle beam first connecting piece (044), a middle beam second connecting piece (045), a middle beam first limiting hole (046), a middle beam second limiting hole (047), wherein the middle left ear plate and the middle right ear plate are respectively and symmetrically connected to the upper parts of two ends of the beam, the connecting pieces are connected to the side surface axes of the beam, and the central section of the connecting pieces coincides with the central section of the beam;
The hinge post comprises a main post (011), an upper single ear plate (012), a lower single ear plate (013) and a post side connecting piece (014), wherein the upper single ear plate and the lower single ear plate are respectively connected to the upper end part and the lower end part of the main post, the post side connecting piece is connected to the axis of the side surface of the post, and the central section of the post side connecting piece is overlapped with the central section of the post;
the top hinge beam, the bottom hinge beam, the middle hinge beam and the hinge column are connected with the pin shaft through the end lug plate; the friction wall is connected with the hinge post side connecting piece by bolts; the shear wall is connected with side connectors of the top hinge beam, the bottom hinge beam and the middle hinge beam by bolts; the friction wall and the shear wall are divided into a multi-layer structure, namely a friction layer, a steel plate layer and a concrete layer; four sides of the yield wall are provided with holes, and the material is steel Q235.
2. The assembled modular self-resetting controllable hinge energy dissipating wall of claim 1, wherein the friction wall is provided with an arcuate aperture.
3. The assembled modularized self-resetting controllable hinge energy consumption wall according to claim 1, wherein the shear wall is provided with holes at corresponding positions relative to arc holes of the friction wall, the friction wall and the shear wall are connected into a whole through bolts, prestress is applied, the shear wall is designed to be of a 3-layer structure along the thickness direction, the outermost layer is reinforced concrete, the middle layer is a steel plate with 3mm protruding points, and the inner layer is a friction surface; and the contact positions of the steel reinforcement cage and the steel plate in the outer layer of reinforced concrete are all spot-welded together.
4. The assembled modular self-resetting controllable hinge energy dissipation wall as defined in claim 1, wherein said arch spring has an oval slot formed therein.
5. The assembled modular self-resetting controllable hinge energy consumption wall of claim 1, wherein the ear plates of the top hinge beam, the middle hinge beam and the bottom hinge beam are provided with two limiting holes.
6. The assembled modularized self-resetting controllable hinge energy consumption wall according to claim 1, wherein the upper ear plate and the lower ear plate of the top hinge beam, the middle hinge beam and the bottom hinge beam are respectively double ear plates, and the ear plates at the column hinge end are respectively single ear plates; the hinge column is I-shaped steel, rectangular concrete core steel pipe or round concrete core steel pipe.
7. A method of assembling an assembled modular self-resetting, controllable hinged energy dissipating wall according to any of claims 1 to 6, comprising the steps of:
s1, anchoring a bottom hinge beam on a foundation through bolts;
s2, a left lug plate and a left lug plate of the bottom hinge beam are respectively connected with lower lug plates of the two hinge columns by adopting pin shafts; the bottom hinge beam and hinge column beam column node area is connected with a reset system;
s3, connecting upper lug plates of the two hinge columns with a middle left lug plate and a middle right lug plate at the lower end of a middle hinge beam by adopting pin shafts, connecting a reset system in a joint area of the middle hinge beam and a hinge column beam, and completing the establishment of an independently supported frame;
S4, connecting the friction wall with a column side connecting piece of the hinge column through bolts, and connecting the shear wall with a bottom beam connecting piece of a bottom hinge beam and a middle beam second connecting piece of a middle hinge beam through bolts;
s5, connecting lower single lug plates of the two corner posts with a middle left lug plate and a middle right lug plate at the upper end of a middle hinge beam by adopting pin shafts, and connecting a middle hinge beam and a hinge post beam column joint area with a reset system;
s6, connecting upper single lug plates of the two corner posts with a top left lug plate and a top left lug plate at the upper end of a top hinge beam by adopting pin shafts, and connecting a top hinge beam and a hinge post beam column joint area with a reset system;
s7, connecting the friction wall with a column side connecting piece of the hinge column through a bolt, and connecting the friction wall with a top beam connecting piece of a top hinge beam and a middle beam first connecting piece of a middle hinge beam through a bolt;
s8, respectively placing bolt rods in the first limit hole of the bottom beam, the second limit hole of the bottom beam, the first limit hole of the top beam, the second limit hole of the top beam, the first limit hole of the middle beam and the second limit hole of the middle beam, and fixing by adopting nuts;
s9, reserving hole connecting screws on the friction wall and the shear wall and applying prestress;
s10, the yield wall replaces the shear wall and the friction wall to adjust the connection mode of the steps S7, S8 and S9.
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