CN112177417B - Construction method of building damping wall - Google Patents
Construction method of building damping wall Download PDFInfo
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- CN112177417B CN112177417B CN202011155733.4A CN202011155733A CN112177417B CN 112177417 B CN112177417 B CN 112177417B CN 202011155733 A CN202011155733 A CN 202011155733A CN 112177417 B CN112177417 B CN 112177417B
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- 238000013016 damping Methods 0.000 title claims abstract description 114
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 230000035939 shock Effects 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 28
- 238000010521 absorption reaction Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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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
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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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Abstract
The invention discloses a construction method of a building damping wall, which is characterized in that a damping wall unit is prefabricated in a factory, a pendulum type damping structure is arranged in the damping wall unit, the prefabricated damping wall unit is transported to a construction site and is installed at wall installation positions in four directions of an upper room of a building, and the damping wall unit and upright columns on two sides of the wall are fixed with each other by virtue of a cast-in-place assembly structure between the damping wall unit and the upright columns on two sides of the wall. The invention has the advantages of simple and efficient site construction, no occupation of redundant space of the building by the damping device, good damping and anti-swing effects of the building and the like.
Description
Technical Field
The invention relates to the technical field of building earthquake resistance, in particular to a construction method of a building shock absorption wall body.
Background
When the existing building is designed and constructed, shock absorption measures need to be considered for high-rise or super high-rise buildings so as to enhance the wind resistance and the shock resistance of the buildings and improve the safety coefficient.
CN201710523153.8 has disclosed a single pendulum type tuned mass damper structure and construction method suitable for high-rise and super high-rise buildings or structures, especially for cylinder structures, the damping structure comprises a single pendulum type tuned mass damper, a high-level water tank of the building, a computer monitoring control system; this harmonious mass damper of simple pendulum formula comprises 90mm high strength cable wire, hollow steel structure spheroid, oil pressure viscosity damper and buffering steel ring, the system can deal with the earthquake of different frequencies and move, can guarantee again that shock-absorbing structure's natural frequency is close ground excellent cycle, reaches the absorbing effect. However, the damping device with the structure needs to install a large mass block at the top of a building, occupies a multi-storey building space, and is complex to install, high in construction requirement and high in difficulty.
The invention of CN201910117078.4 discloses a magnetorheological damping tuned damper for super high-rise buildings, which mainly comprises: the magnetic current tuned mass block is used as a variable damping tuned mass damper, and the working principle of the magnetic current tuned mass block is as follows: the magneto-rheological tuned mass block is internally provided with a plurality of anti-drag slide blocks, the anti-drag slide blocks slide in the magneto-rheological fluid to eliminate the vibration of an ultra-high-rise building caused by earthquake or strong wind, the outer part of the magneto-rheological tuned mass block is connected with the lead steel laminated damper, the impact pressure of the magneto-rheological fluid on the structure is reduced, and the damper has the advantages of good structural stress performance, easiness in implementation, good stability, good damping effect, good safety and the like, and the magneto-rheological system is low in power consumption, small in size and obvious in damping effect. However, the damping device with the structure still has the defects of complex structure, inconvenient construction, dependence of the effect of the magnetorheological fluid on the action of an electric magnetic field, poor stability and the like.
In order to solve the problems, the applicant considers that pendulum type shock absorption structures are respectively arranged in the wall bodies of four directions of a room on the upper floor of a building, so that when the upper end of the building swings under the action of external acting force, a force opposite to the swinging direction of the upper end of the building is generated under the action of self weight and damping by virtue of a mass block arranged in a hanging manner, the structural response caused by the excitation of the external acting force is partially counteracted, and the shock absorption of the building is realized.
However, if the pendulum-type damping structure can be conveniently and quickly arranged inside the wall, the construction is convenient on site, the construction efficiency is improved, and the problem to be solved is solved.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: the construction method for the building damping wall is quick and efficient in construction, the obtained building wall can have a good damping and anti-swing effect, and the building damping wall does not occupy redundant space of a building.
In order to solve the technical problems, the invention adopts the following technical scheme:
a construction method of a building damping wall body is characterized in that a damping wall body unit is prefabricated in a factory, a pendulum type damping structure is arranged in the damping wall body unit, the prefabricated damping wall body unit is transported to a construction site and is installed at wall body installation positions in four directions of an upper room of the building, and the damping wall body unit and upright columns on two sides of the wall body are fixed with each other by virtue of a cast-in-place assembly structure between the damping wall body unit and the upright columns on two sides of the wall body.
Therefore, the damping wall body unit with the pendulum type damping structure is prefabricated in a factory, and only the damping wall body unit and the upright columns on the two sides of the wall body need to be positioned and fixed in site construction, so that the site construction is very convenient, fast and efficient.
Preferably, the cast-in-place assembly structure comprises guide bases which are pre-installed on the inner side surfaces of upright posts on two sides of the wall body, the guide bases are in a convex rectangular body, the cast-in-place assembly structure also comprises guide grooves which are pre-installed on the side surfaces of two ends of the damping wall body unit, the positions of the guide grooves correspond to the positions of the guide bases and can clamp the guide bases into the guide grooves, the width of the guide bases is smaller than the width of the wall body and is positioned in the middle position of the width direction of the side surfaces of the upright posts, the length of the outward bulge of the guide base in the horizontal direction is smaller than the depth of the guide groove, so that a post-pouring connecting cavity is formed between the outer side surface of the front end and the outer side surfaces of the two sides of the guide base and the guide groove respectively, a plurality of connecting reinforcing steel bars which extend outwards and enter the post-pouring connecting cavity are arranged on the outer side surface of the front end and the outer side surfaces of the two sides of the guide base, and the upper end surface of the damping wall unit is also provided with a vertical post-pouring hole channel which is connected with the post-pouring connecting cavity and corresponds to the upper position of the guide groove; cast-in-place assembly structure still includes stop device, and stop device installs coil spring including being located the spring mounting hole of guide base up end and vertical setting in the spring mounting hole, and coil spring mounting hole drill way department is provided with the spacing ball that the diameter is less than drill way diameter, and first one is pushed out the spring mounting hole drill way by coil spring when spacing ball is not compressed, and the corresponding position is provided with on the top surface on the guiding groove and supplies first one of spacing ball to fall into spacing groove.
Thus, during assembly, the guide bases are pre-installed and fixed on the inner side faces of the uprights at two sides of the wall body (preferably, the guide bases and the uprights are integrally cast and fixed into a whole in advance), then the prefabricated damping wall body unit is vertically erected and horizontally pushed to the installation position, the guide bases are correspondingly clamped into the guide grooves on the side faces at two ends of the damping wall body unit, the limiting balls on the upper end face of the guide bases roll into the limiting grooves on the upper top face of the guide grooves to realize positioning after the damping wall body unit is pushed to be in place, then the pouring templates are well arranged on two side sides of the guide grooves, concrete is poured into the post-pouring connecting cavities from the vertical post-pouring hole channels on the upper end face of the damping wall body unit and is filled into the post-pouring connecting cavities, after curing and solidification are completed, and assembly construction between the damping wall body unit and the uprights at two sides of the wall body is completed. Therefore, the damping wall body unit has the advantages of convenience and rapidness in construction, stability and reliability in connection of the damping wall body unit and the stand columns on the two sides of the wall body and the like.
As optimization, a plurality of guide bases are vertically arranged on the inner side surfaces of the upright posts on the two sides of the wall body. The connection reliability is improved better.
Furthermore, a vertical installation cavity is formed inside the damping wall unit, a mass block is arranged in the middle of the lower end of the installation cavity, a lifting rope is connected to the upper end of the mass block and is hung in the installation cavity through the lifting rope, spaces for swinging of the mass block are reserved at two ends of the mass block in the installation cavity along the length direction of the wall body, and the damping wall unit further comprises a damping member for providing reverse acting force to the swinging direction of the mass block.
Thus, when the building vibrates (swings) under the influence of earthquake or wind, the mass block plays a centering role to slow down the swing of the upper end of the building, and particularly when the building vibrates (swings), the mass block generates reverse vibration (swings) relative to the building, partial vibration response of the building is counteracted, and the vibration amplitude of the building is reduced. Meanwhile, the existence of the damping member and the mass block form a tuned mass damper, and a part of vibration energy is dissipated and converted by means of the interaction of the damping member and the mass block, so that the damping effect is greatly improved.
Preferably, the mounting cavity comprises a sliding groove at the lower part and a plane groove connected above the sliding groove, the mass block is mounted in the sliding groove, the lifting rope is positioned in the plane groove, and the width of the mass block is larger than that of the plane groove.
Therefore, the mass block is limited in the sliding groove to slide, the mass block is prevented from sliding out of the sliding groove, and the wall body is more convenient to transport and assemble when being a prefabricated assembly type wall body.
Preferably, the mass block is in a circular cake shape as a whole. Is convenient for production and manufacture and is beneficial to being limited by the sliding groove.
Preferably, the mass block is made of a steel plate shell in which lead is poured.
Therefore, the weight can be better improved, the centering effect is enhanced, the friction damping is increased, the energy dissipation conversion efficiency is improved, and the shock absorption effect is improved.
Preferably, the sliding groove is in an arc shape consistent with the swinging path of the mass block.
This further facilitates the sliding of the mass within the sliding slot.
Preferably, the lifting rope is a steel wire rope. Ensuring sufficient strength.
As optimization, a supporting beam is horizontally arranged at the upper end of the mounting cavity, and the upper end of the lifting rope is fixed to the lower surface of the supporting beam through an anchor bolt.
Therefore, the installation and the manufacture are convenient, and the supporting beam can better bear the weight of the mass block and ensure the stability of the whole structure.
As optimization, a steel reinforcement cage is arranged in the supporting beam. The strength of the supporting beam is improved better, and the supporting reliability is ensured.
Preferably, the damping member includes friction plates fixed to inner walls of the sliding grooves on both sides of the mass block, the friction plates are made of an elastic material, and the surfaces of the friction plates are friction surfaces contacting with the mass block.
Therefore, the friction plate made of elastic materials can generate a damping effect when the mass block swings, and can rub with the mass block to convert kinetic energy into internal energy for dissipation. Meanwhile, the damping effect can be conveniently adjusted, so that the effect of the tuned mass damper can be better realized.
Preferably, the thickness of the friction plate is gradually increased from the middle part of the sliding groove to two sides.
Therefore, the space interval width for the mass block to slide between the friction plates is gradually reduced from the middle to two sides, when the mass block swings in the sliding groove, the damping action borne by the mass block can be increased along with the increase of the deflection angle, when the building swings under the action of earthquake or wind power, the swing amplitude is larger, the damping action effect of the mass block is larger, the friction energy consumption conversion effect of the mass block and the friction plates is better, the conversion energy consumption damping effect can be in follow-up response with the swing amplitude of the building, and the best tuned mass damper effect is achieved.
Furthermore, the damping wall body unit is obtained by combining and fixing a left half wall body and a right half wall body which are integrally and symmetrically arranged, a mounting cavity is formed on the combined surface of the left half wall body and the right half wall body, a supporting beam mounting groove is formed in the upper end face of the combined left half wall body and the combined right half wall body and used for mounting a supporting beam, a lifting rope hole which is downwards communicated with the mounting cavity is reserved in the middle of the bottom of the supporting beam mounting groove and is used for a lifting rope to pass through, a horizontal post-pouring hole channel which is horizontally arranged in a penetrating mode is formed in the circumferential direction of the left half wall body and the right half wall body and close to the edge position of the left half wall body and the right half wall body, and the left half wall body and the right half wall body are relatively fixed by means of concrete poured in the horizontal post-pouring hole channel.
Thus, the preparation of the damping wall body unit is facilitated, and the arrangement and installation of the internal damping structure are facilitated. Specifically, the damping wall unit can be prepared by the following steps: a, independently supporting a formwork and pouring to form a left half wall body and a right half wall body, forming a mounting cavity on the combined surface of the left half wall body and the right half wall body, forming a sliding groove which is integrally arc-shaped and has a larger groove depth at the lower end of the mounting cavity, forming a supporting beam mounting groove at the upper end surface of the left half wall body and the right half wall body after the left half wall body and the right half wall body are combined, and forming a horizontal post-pouring pore channel which is horizontally arranged in a penetrating manner at the position, close to the edge, of the left half wall body and the right half wall body in the circumferential direction; b, sticking and fixing the friction plate in the sliding groove; c, placing the prefabricated mass block into the sliding groove, and pulling out a lifting rope fixed on the mass block to the supporting beam mounting groove; d, completing the involution of the left half wall body and the right half wall body, and pouring concrete in the horizontal post-pouring pore channel to realize fixation; e, keeping the left half wall body and the right half wall body in a vertical state after the folding, binding a steel reinforcement cage in the mounting groove of the supporting beam, fixing the end part of the lifting rope on the steel reinforcement cage, and finishing the pouring of the supporting beam. Therefore, the damping wall body unit can be conveniently, quickly and reliably prefabricated.
In conclusion, the invention has the advantages of simple and efficient site construction, no occupation of redundant space of the building by the damping device, good damping and swing-preventing effects of the building and the like.
Drawings
Fig. 1 is a schematic structural view of a shock-absorbing wall structure of a building constructed according to an embodiment of the present invention.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a view B-B in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
In the specific implementation: referring to fig. 1-3, a construction method of a building shock absorption wall body comprises the steps of prefabricating a shock absorption wall body unit in a factory, arranging a pendulum type shock absorption structure in the shock absorption wall body unit, transporting the prefabricated shock absorption wall body unit to a construction site, installing the prefabricated shock absorption wall body unit to wall body installation positions in four directions of an upper room of the building, and realizing mutual fixation of the shock absorption wall body unit and upright columns on two sides of the wall body by virtue of a cast-in-place assembly structure between the shock absorption wall body unit and the upright columns on two sides of the wall body.
Therefore, the damping wall body unit with the pendulum type damping structure is prefabricated in a factory, and only the damping wall body unit and the upright columns on the two sides of the wall body need to be positioned and fixed in site construction, so that the site construction is very convenient, fast and efficient. After construction is finished, pendulum type shock absorption structures are respectively arranged in the wall bodies of the rooms on the upper layer of the building in four directions, so that when the upper end of the building swings under the action of external acting force, a force opposite to the swinging direction of the upper end of the building can be generated under the action of self weight and damping by means of the mass block 1 arranged in a hanging mode, structural response caused by excitation of the external acting force is partially offset, and shock absorption of the building is achieved. Thus, the pendulum damping structure is creatively arranged in the wall body of the high-rise building, so that the pendulum damping structure does not occupy the redundant space of the building. Meanwhile, the damping structures of the pendulum type are arranged in the four-side wall body, so that the building can generate good damping effect no matter which direction the building swings, and the safety of the building is improved.
Wherein, the cast-in-situ assembly structure comprises guide bases 10 which are pre-installed on the inner side surfaces of upright posts on two sides of a wall body, the guide bases 10 are in a convex rectangular body, the cast-in-situ assembly structure also comprises guide grooves 11 which are pre-installed on the side surfaces of two ends of the damping wall body unit, the positions of the guide grooves 11 correspond to the positions of the guide bases and can clamp the guide bases into the guide grooves, the width of the guide bases is smaller than the width of the wall body and is positioned in the middle position of the width direction of the side surfaces of the upright posts, the length of the outward bulge of the guide base in the horizontal direction is smaller than the depth of the guide groove, so that a post-cast connecting cavity 12 is formed between the outer side surface of the front end and the outer side surfaces of the two sides of the guide base and the guide groove respectively, a plurality of connecting steel bars 13 extending outwards into the post-cast connecting cavity are arranged on the outer side surface of the front end and the outer side surfaces of the two sides of the guide base, and the upper end surface of the damping wall unit is also provided with a vertical post-cast hole channel 14 corresponding to the position above the guide groove and connected with the post-cast connecting cavity 12; cast-in-place assembly structure still includes stop device, and stop device installs coil spring 15 including being located the spring mounting hole of guide base up end and vertical setting in the spring mounting hole, and coil spring mounting hole drill way department is provided with the spacing ball 16 that the diameter is less than the drill way diameter, and first one is pushed out the spring mounting hole drill way by coil spring when spacing ball is not compressed, and corresponding position is provided with on the top surface on the guiding groove and supplies first one of spacing ball to fall into spacing groove.
Thus, during assembly, the guide bases are pre-installed and fixed on the inner side faces of the uprights on the two sides of the wall body (preferably, the guide bases and the uprights are integrally cast and fixed in a cast-in-place mode), then the prefabricated damping wall body unit is erected and horizontally pushed to the installation position, the guide bases are correspondingly clamped into the guide grooves on the side faces of the two ends of the damping wall body unit, the limiting balls on the upper end face of the guide bases roll into the limiting grooves on the upper top face of the guide grooves to achieve positioning after the damping wall body unit is pushed to be in place, then the pouring templates are well arranged on the two side branches of the guide grooves, concrete is poured into the post-pouring connecting cavities from the vertical post-pouring hole channels on the upper end face of the damping wall body unit and is filled into the post-pouring connecting cavities, after curing and solidification are completed, and assembly construction between the damping wall body unit and the uprights on the two sides of the wall body is completed. Therefore, the damping wall body unit has the advantages of convenience and rapidness in construction, stability and reliability in connection of the damping wall body unit and the stand columns on the two sides of the wall body and the like.
Wherein, the guide bases on the inner side surfaces of the upright posts on the two sides of the wall body are vertically provided with a plurality of guide bases. The connection reliability is improved better.
The damping wall body unit is characterized in that a vertical installation cavity is formed inside the damping wall body unit, the vertical installation cavity is formed in the damping wall body unit, the mass block 1 is arranged in the middle of the lower end of the installation cavity, the upper end of the mass block 1 is connected with a lifting rope 4 and is hung in the installation cavity through the lifting rope 4, spaces for swinging of the mass block are reserved at two ends of the mass block in the installation cavity along the length direction of the wall body, and the damping wall body unit further comprises a damping member for providing reverse acting force to the swinging direction of the mass block.
Thus, when the building vibrates (swings) under the influence of earthquake or wind, the mass block plays a centering role to slow down the swing of the upper end of the building, and particularly when the building vibrates (swings), the mass block generates reverse vibration (swings) relative to the building, partial vibration response of the building is counteracted, and the vibration amplitude of the building is reduced. Meanwhile, the existence of the damping member and the mass block form a tuned mass damper, and a part of vibration energy is dissipated and converted by means of the interaction of the damping member and the mass block, so that the damping effect is greatly improved.
The installation cavity 3 comprises a sliding groove below and a plane groove connected above the sliding groove, the mass block 1 is installed in the sliding groove, the lifting rope 4 is located in the plane groove, and the width of the mass block is larger than that of the plane groove.
Therefore, the mass block is limited in the sliding groove to slide, the mass block is prevented from sliding out of the sliding groove, and the wall body is more convenient to transport and assemble when being a prefabricated assembly type wall body.
Wherein, the mass block 1 is in a round cake shape as a whole. Is convenient for production and manufacture and is beneficial to being limited by the sliding groove.
The mass block is made of a steel plate shell in which lead is poured.
Therefore, the weight can be better improved, the centering effect is enhanced, the friction damping is increased, the energy dissipation conversion efficiency is improved, and the shock absorption effect is improved.
Wherein, the sliding groove is in an arc shape consistent with the swinging path of the mass block 1.
This further facilitates the sliding of the mass within the sliding slot.
Wherein, the lifting rope 4 adopts a steel wire rope. Ensuring sufficient strength.
Wherein, the upper end level of installation cavity 3 is provided with a supporting beam 5, and the upper end of lifting rope 4 is fixed at a supporting beam 5 lower surface through the crab-bolt.
Therefore, the installation and the manufacture are convenient, and the supporting beam can better bear the weight of the mass block and ensure the stability of the whole structure.
Wherein, a steel reinforcement cage 6 is arranged in the support beam 5. The strength of the supporting beam is improved better, and the supporting reliability is ensured.
The damping member comprises friction plates fixed on the inner walls of the sliding grooves on two sides of the mass block, the friction plates are made of elastic materials and form the elastic material layer 2, and the surfaces of the friction plates are friction surfaces in contact with the mass block.
Therefore, the friction plate made of elastic materials can generate a damping effect when the mass block swings, and can rub with the mass block to convert kinetic energy into internal energy for dissipation. Meanwhile, the damping effect can be conveniently adjusted, so that the effect of the tuned mass damper can be better realized.
Wherein, the thickness of the friction plate is gradually increased from the middle part of the sliding groove to two sides.
Therefore, the space interval width for the mass block to slide between the friction plates is gradually reduced from the middle to two sides, when the mass block swings in the sliding groove, the damping action borne by the mass block can be increased along with the increase of the deflection angle, when the building swings under the action of earthquake or wind power, the swing amplitude is larger, the damping action effect of the mass block is larger, the friction energy consumption conversion effect of the mass block and the friction plates is better, the conversion energy consumption damping effect can be in follow-up response with the swing amplitude of the building, and the best tuned mass damper effect is achieved.
Wherein, the left half wall body and the right half wall body that shock attenuation wall unit 7 set up for whole symmetry are to closing fixedly and are obtained, the installation cavity that forms on the involution face of left half wall body and right half wall body, left side half wall body and right half wall body form a supporting beam mounting groove and are used for the erection bracing beam with the upper end face after involution, the bottom middle part of supporting beam mounting groove leaves the lifting rope hole that communicates the installation cavity downwards and supplies the lifting rope to pass, left side half wall body and right half wall body upwards are close to the border position in the circumference and have the level that the setting is run through behind watering hole way 9, left side half wall body and right half wall body rely on the concrete of pouring in the watering hole way 9 behind the level to realize relatively fixed.
Thus, the preparation of the damping wall body unit is facilitated, and the arrangement and installation of the internal damping structure are facilitated. Specifically, the damping wall unit can be prepared by the following steps: a, independently supporting a formwork and pouring to form a left half wall body and a right half wall body, forming a mounting cavity on the combined surface of the left half wall body and the right half wall body, forming a sliding groove which is integrally arc-shaped and has a larger groove depth at the lower end of the mounting cavity, forming a supporting beam mounting groove at the upper end surface of the left half wall body and the right half wall body after the left half wall body and the right half wall body are combined, and forming a horizontal post-pouring pore channel which is horizontally arranged in a penetrating manner at the position, close to the edge, of the left half wall body and the right half wall body in the circumferential direction; b, sticking and fixing the friction plate in the sliding groove; c, placing the prefabricated mass block into the sliding groove, and pulling out a lifting rope fixed on the mass block to the supporting beam mounting groove; d, completing the involution of the left half wall body and the right half wall body, and pouring concrete in the horizontal post-pouring pore channel to realize fixation; e, keeping the left half wall body and the right half wall body in a vertical state after the folding, binding a steel reinforcement cage in the mounting groove of the supporting beam, fixing the end part of the lifting rope on the steel reinforcement cage, and finishing the pouring of the supporting beam. Therefore, the damping wall body unit can be conveniently, quickly and reliably prefabricated.
Claims (9)
1. A construction method of a building damping wall body is characterized in that a damping wall body unit is prefabricated in a factory, a pendulum type damping structure is arranged in the damping wall body unit, the prefabricated damping wall body unit is transported to a construction site and is installed at wall body installation positions in four directions of an upper room of the building, and the damping wall body unit and upright columns on two sides of the wall body are fixed with each other by virtue of a cast-in-place assembly structure between the damping wall body unit and the upright columns on two sides of the wall body;
the cast-in-situ assembly structure comprises guide bases which are pre-installed on the inner side surfaces of upright posts on two sides of a wall body, the guide bases are in a convex rectangular body, the cast-in-situ assembly structure also comprises guide grooves which are pre-installed on the side surfaces of two ends of a damping wall body unit, the positions of the guide grooves correspond to the positions of the guide bases and can clamp the guide bases into the guide grooves, the width of the guide bases is smaller than the width of the wall body and is positioned in the middle position of the width direction of the side surfaces of the upright posts, the length of the outward bulge of the guide base in the horizontal direction is smaller than the depth of the guide groove, so that a post-pouring connecting cavity is formed between the outer side surface of the front end and the outer side surfaces of the two sides of the guide base and the guide groove respectively, a plurality of connecting reinforcing steel bars which extend outwards and enter the post-pouring connecting cavity are arranged on the outer side surface of the front end and the outer side surfaces of the two sides of the guide base, and the upper end surface of the damping wall unit is also provided with a vertical post-pouring hole channel which is connected with the post-pouring connecting cavity and corresponds to the upper position of the guide groove; the cast-in-place assembly structure further comprises a limiting device, the limiting device comprises a spring mounting hole which is positioned on the upper end surface of the guide base and is vertically arranged, a spiral spring is mounted in the spring mounting hole, a limiting ball with the diameter smaller than that of the hole opening is arranged at the hole opening of the spiral spring mounting hole, the upper half part of the limiting ball is ejected out of the hole opening of the spring mounting hole by the spiral spring when the limiting ball is not pressed, and a limiting groove for limiting the upper half part of the limiting ball to fall into is arranged at the corresponding position on the upper top surface of the guide groove;
during assembly, the guide base is pre-installed and fixed on the inner side faces of the stand columns on the two sides of the wall body, the prefabricated damping wall body unit is erected and pushed to the installation position along the horizontal direction, the guide base is correspondingly clamped into the guide grooves on the side faces of the two ends of the damping wall body unit, the limiting balls on the upper end face of the guide base roll into the limiting grooves on the upper top face of the guide grooves to realize positioning after the damping wall body unit is pushed in place, then the templates are well poured on the two side sides of the guide grooves, concrete is poured into the post-pouring connecting cavity from the vertical post-pouring hole channel on the upper end face of the damping wall body unit and is filled in the post-pouring connecting cavity, and after curing and solidification are completed, the assembly construction between the damping wall body unit and the stand columns on the two sides of the wall body is completed.
2. The method for constructing a shock-absorbing wall of claim 1, wherein a plurality of guide bases are vertically provided on the inner sides of the columns on both sides of the wall.
3. The construction method of the shock-absorbing wall for the building as claimed in claim 1, wherein a vertical installation cavity is formed inside the shock-absorbing wall unit, a mass block is arranged at the middle position of the lower end of the installation cavity, a lifting rope is connected to the upper end of the mass block and is hung in the installation cavity through the lifting rope, spaces for the mass block to swing are reserved at the two ends of the mass block in the length direction of the wall in the installation cavity, and the shock-absorbing wall for the building further comprises a damping member for providing a reverse acting force to the swinging direction of the mass block.
4. The method for constructing a shock-absorbing wall of claim 3, wherein the installation cavity comprises a lower sliding groove and a planar groove connected to the upper sliding groove, the mass is installed in the sliding groove, the lifting rope is located in the planar groove, and the width of the mass is greater than that of the planar groove;
the mass block is integrally in a circular cake shape;
the mass block is made of a steel plate shell in which lead is poured.
5. The method of constructing a shock absorbing wall for buildings according to claim 4, wherein the sliding groove has an arc shape in conformity with the swing path of the mass;
the lifting rope is a steel wire rope.
6. The construction method of the shock-absorbing wall body for the building as claimed in claim 3, wherein a support beam is horizontally arranged at the upper end of the installation cavity, and the upper end of the lifting rope is fixed to the lower surface of the support beam through an anchor bolt;
a steel reinforcement cage is arranged in the supporting beam.
7. The construction method of a shock-absorbing wall for a building as claimed in claim 3, wherein the damping member comprises friction plates fixed to inner walls of the sliding grooves at both sides of the mass block, the friction plates being made of an elastic material, the surfaces of the friction plates being friction surfaces contacting the mass block;
the thickness of the friction plate is gradually increased from the middle part of the sliding groove to two sides.
8. The construction method of the shock-absorbing wall for the building as claimed in claim 3, wherein the shock-absorbing wall units are obtained by fixing the left half wall and the right half wall which are symmetrically arranged integrally in an involution manner, the involution surfaces of the left half wall and the right half wall are formed with installation cavities, the upper end surfaces of the left half wall and the right half wall after involution form supporting beam installation grooves and are used for installing supporting beams, the middle part of the bottom of the supporting beam installation groove is provided with a lifting rope hole which is communicated with the installation cavities downwards for a lifting rope to pass through, the left half wall and the right half wall are provided with horizontal post-cast channels which are horizontally penetrated and arranged close to the edge positions in the circumferential direction, and the left half wall and the right half wall are relatively fixed by concrete poured in the horizontal post-cast channels.
9. The method for constructing a shock-absorbing wall of claim 8, wherein the shock-absorbing wall unit is prepared by the steps of: a, independently supporting a formwork and pouring to form a left half wall body and a right half wall body, forming a mounting cavity on the combined surface of the left half wall body and the right half wall body, forming a sliding groove which is integrally arc-shaped and has a larger groove depth at the lower end of the mounting cavity, forming a supporting beam mounting groove at the upper end surface of the left half wall body and the right half wall body after the left half wall body and the right half wall body are combined, and forming a horizontal post-pouring pore channel which is horizontally arranged in a penetrating manner at the position, close to the edge, of the left half wall body and the right half wall body in the circumferential direction; b, sticking and fixing the friction plate in the sliding groove; c, placing the prefabricated mass block into the sliding groove, and pulling out a lifting rope fixed on the mass block to the supporting beam mounting groove; d, completing the involution of the left half wall body and the right half wall body, and pouring concrete in the horizontal post-pouring pore channel to realize fixation; e, keeping the left half wall body and the right half wall body in a vertical state after the folding, binding a steel reinforcement cage in the mounting groove of the supporting beam, fixing the end part of the lifting rope on the steel reinforcement cage, and finishing the pouring of the supporting beam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155733.4A CN112177417B (en) | 2020-10-26 | 2020-10-26 | Construction method of building damping wall |
| CN202110932126.2A CN113530339B (en) | 2020-10-26 | 2020-10-26 | Cast-in-place assembly structure for construction of building damping wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155733.4A CN112177417B (en) | 2020-10-26 | 2020-10-26 | Construction method of building damping wall |
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| CN202110932126.2A Division CN113530339B (en) | 2020-10-26 | 2020-10-26 | Cast-in-place assembly structure for construction of building damping wall |
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| CN112177417A CN112177417A (en) | 2021-01-05 |
| CN112177417B true CN112177417B (en) | 2021-10-08 |
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| CN202110932126.2A Expired - Fee Related CN113530339B (en) | 2020-10-26 | 2020-10-26 | Cast-in-place assembly structure for construction of building damping wall |
| CN202011155733.4A Expired - Fee Related CN112177417B (en) | 2020-10-26 | 2020-10-26 | Construction method of building damping wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113338774B (en) * | 2021-06-29 | 2023-04-28 | 北京庄构人防设备厂 | Explosion-proof people's air defense door of steel construction |
| CN116657826A (en) * | 2023-07-25 | 2023-08-29 | 河南省第二建设集团有限公司 | Damping hollow slab and assembled damping wall |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113530339B (en) | 2022-05-20 |
| CN112177417A (en) | 2021-01-05 |
| CN113530339A (en) | 2021-10-22 |
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