CN113089870A - Energy dissipation and vibration reduction supporting structure and construction method thereof - Google Patents
Energy dissipation and vibration reduction supporting structure and construction method thereof Download PDFInfo
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- CN113089870A CN113089870A CN202110381464.1A CN202110381464A CN113089870A CN 113089870 A CN113089870 A CN 113089870A CN 202110381464 A CN202110381464 A CN 202110381464A CN 113089870 A CN113089870 A CN 113089870A
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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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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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
- E04H9/025—Structures with concrete columns
Abstract
The invention discloses an energy dissipation and vibration reduction supporting structure and a construction method thereof, belonging to the field of building structure design and construction. The damping steel inclined strut is hinged with a steel sleeve on the concrete frame column and the upper conversion beam, and mainly bears vertical force transmitted by the upper conversion structure and reduces shearing force and bending moment of the conversion beam, so that vibration induced by subway operation is effectively reduced; the lower layer steel pull rod (or steel frame beam) mainly bears the tensile force and reduces the bending moment and the shearing force transmitted to the frame column by the steel diagonal brace; the construction is simple and convenient, the vibration reduction steel inclined strut, the frame column, the steel pull rod (or the steel frame beam) and the conversion beam form a space conversion structure, the vertical rigidity of a lower structure is increased, and the rigidity mutation of the conversion layer is effectively avoided; due to the adoption of the vibration reduction inclined support, the vertical vibration caused by the running of the vehicle is effectively reduced, the overall anti-seismic performance and the comfort level of the structure are improved, and the practicability is high.
Description
Technical Field
The invention belongs to the field of building structure design and construction, relates to design and construction of a property development structure of a ground cover of a subway vehicle base, and particularly relates to an energy dissipation and vibration reduction supporting structure applied to the subway vehicle base and a construction method thereof.
Background
In recent years, urban subways are rapidly developed, convenience is brought to people by subways, meanwhile, a large amount of urban construction land is occupied by a subway vehicle base, the shortage of urban land resources is aggravated, and the subway vehicle section upper cover property is developed into a new trend for solving the contradiction between supply and demand of the urban land resources.
The metro vehicle section bears the functions of parking and maintenance of metro vehicles, is usually a large-span frame structure, has larger floor height, is usually developed into buildings such as houses and kindergartens when covered, adopts structural systems such as frames, frame-shear walls and shear walls, and has the characteristics of small span, low floor height and the like relative to buildings covered under the cover, so the buildings covered on and under the cover need structural conversion. However, the span of the transfer beam is large, the upper load is large, the size of the cross section of the transfer beam is relatively large, and the rigidity mutation is often formed in the transfer layer. Meanwhile, environmental vibration and noise generated by the operation of the subway vehicle have adverse effects on the respiratory system and the nervous system of a human body, and can cause sleep and mental injury of the human body under severe conditions.
Therefore, the invention provides an energy dissipation and vibration reduction supporting structure applied to a subway vehicle base and a construction method thereof, so as to overcome the technical problems.
Disclosure of Invention
The invention aims to provide an energy dissipation and vibration reduction supporting structure applicable to a subway vehicle base and a construction method thereof, and aims to solve the problems in the prior art.
In order to achieve the above purpose, the invention provides the following two schemes:
the first scheme is as follows:
the utility model provides an energy dissipation damping bearing structure that can be applied to subway vehicle base, mainly includes concrete frame post, steel pull rod, conversion roof beam and damping steel bracing, the concrete frame post support in the below of conversion roof beam, the top of conversion roof beam is used for developing and covers the building, install first steel casing pipe on the concrete frame post, the one end of damping steel bracing articulates in first steel casing pipe, the other end of damping steel bracing articulates in the conversion roof beam, the both ends of steel pull rod articulate respectively in two on the concrete frame post, just the steel pull rod is located the below of damping steel bracing.
Optionally, a first connecting plate is mounted on the first steel sleeve, and the one end of the damping steel diagonal brace is hinged to the first connecting plate; and two ends of the steel pull rod are respectively hinged to the first connecting plates on the two concrete frame columns.
Optionally, a second connecting plate is mounted at the bottom of the transfer beam, and the other end of the damping steel diagonal brace is hinged to the second connecting plate.
Optionally, the first steel casing is fixed to the concrete frame column by shear studs; the outer side wall of the first steel sleeve is provided with a plurality of stiffening ribs.
Meanwhile, the scheme provides a construction method based on the energy dissipation and vibration reduction supporting structure, which specifically comprises the following steps:
step 1, finishing the steel pull rod, the vibration reduction steel inclined strut and a steel sleeve in a factory, wherein the steel sleeve can be used as a section of template of the concrete frame column;
and 3, after the frame structure covered under the beam reaches a certain bearing capacity, namely after the concrete strength of the conversion beam reaches 80%, covering the conversion beam above for building construction, wherein part of construction load can be borne by the steel pull rod and the damping steel inclined strut.
Scheme II:
the second scheme provides another energy dissipation and vibration reduction supporting structure applicable to a subway vehicle base, which mainly comprises a concrete frame column, a steel frame beam, a conversion beam and vibration reduction steel inclined struts, wherein the concrete frame column is supported below the conversion beam, the top of the conversion beam is used for developing and covering a building, the concrete frame column is provided with a second steel sleeve, one ends of the vibration reduction steel inclined struts are hinged to the second steel sleeve, the other ends of the vibration reduction steel inclined struts are hinged to the conversion beam, two ends of the steel frame beam are respectively connected to the two concrete frame columns, the steel frame beam is located below the vibration reduction steel inclined struts and is used for forming two layers of floors under the cover, and the steel frame beam can be used for building an upper-layer small garage.
Optionally, a third connecting plate is mounted on the second steel sleeve, and the one end of the damping steel diagonal brace is hinged to the third connecting plate.
Optionally, a fourth connecting plate is installed at the bottom of the transfer beam, and the other end of the damping steel diagonal brace is hinged to the fourth connecting plate.
Optionally, a third steel sleeve is further installed on the concrete frame column, the third steel sleeve is located below the second steel sleeve, a fifth connecting plate is installed on the third steel sleeve, and two ends of the steel frame beam are respectively and fixedly connected to the fifth connecting plate on the two concrete frame columns.
Optionally, the second steel casing and/or the third steel casing is/are secured to the concrete frame column by shear studs; and a plurality of stiffening ribs are arranged on the outer side wall of the second steel sleeve and/or the third steel sleeve.
Meanwhile, the second scheme provides a construction method based on the energy dissipation and vibration reduction supporting structure, which specifically comprises the following steps:
step 1, finishing the steel frame beam, the vibration reduction steel inclined strut and the steel sleeve in a factory, and taking the steel sleeve as a section of template of the concrete frame column;
and 3, after the lower two-layer frame structure reaches a certain bearing capacity, namely after the concrete strength of the conversion beam reaches 80%, covering the conversion beam for building construction, wherein the steel frame beam and the vibration reduction steel inclined strut can bear part of construction load.
Compared with the prior art, the invention has the following technical effects:
the energy dissipation and vibration reduction (shock) frame structure and the construction method thereof provided by the invention have the advantages that the construction method is simple and convenient, and the structure comprises concrete frame columns, steel pull rods (or steel frame beams), conversion beams and vibration reduction steel inclined struts. The damping steel inclined strut is hinged with a steel sleeve on the concrete frame column and the upper conversion beam, and mainly bears vertical force transmitted by the upper conversion structure and reduces shearing force and bending moment of the conversion beam, so that vibration induced by subway operation is effectively reduced; the lower layer steel pull rod (or steel frame beam) mainly bears the tensile force and reduces the bending moment and the shearing force transmitted to the frame column by the steel diagonal brace; the vibration reduction steel inclined strut, the frame column, the steel pull rod (or the steel frame beam) and the conversion beam form a space conversion structure, so that the vertical rigidity of a lower structure is increased, and the rigidity mutation of the conversion layer is effectively avoided; due to the adoption of the vibration reduction inclined support, the vertical vibration caused by the running of the vehicle is effectively reduced, the overall anti-seismic performance and the comfort level of the structure are improved, and the practicability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an energy (vibration) damping frame structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a frame structure for damping vibration of energy dissipation in a second embodiment of the present invention;
FIG. 3 is a schematic view of a frame structure for damping vibration of energy dissipation in a third embodiment of the present invention;
FIG. 4 is a schematic view of a vibration damping frame structure of energy dissipation in the fourth embodiment of the present invention;
FIG. 5 is a schematic illustration of the installation of a steel casing according to the present invention;
wherein the reference numerals are:
1-1, a first energy dissipation and vibration reduction (shock) support structure; 1-2, a second energy dissipation and vibration reduction (shock) support structure; 2. a concrete frame column; 3. a steel tie rod; 4. a transfer beam; 5. damping steel diagonal bracing; 6. a first steel casing; 7. a first connecting plate; 8. a second connecting plate; 9. shear resistant studs; 10. a stiffening rib; 11. a steel frame beam; 12. a second steel casing; 13. a third connecting plate; 14. a fourth connecting plate; 15. a third steel casing; 16. and a fifth connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1, the embodiment provides an energy dissipation and vibration damping (shock) support structure 1-1 applicable to a subway vehicle base, which mainly comprises a concrete frame column 2, a steel pull rod 3, a conversion beam 4 and a vibration damping steel inclined strut 5, wherein the concrete frame column 2 is supported below the conversion beam 4, the upper side of the conversion beam 4 is used for developing a covering building, the concrete frame column 2 is sleeved with a first steel sleeve 6, one end of the vibration damping steel inclined strut 5 is hinged to the first steel sleeve 6, the other end of the vibration damping steel inclined strut 5 is hinged to the lower plate surface of the conversion beam 4, two ends of the steel pull rod 3 are respectively hinged to the two concrete frame columns 2, and the steel pull rod 3 is located below the vibration damping steel inclined strut 5.
In the embodiment, as shown in fig. 1, a first connecting plate 7 is mounted on the first steel sleeve 6, and one end of the damping steel inclined strut 5 is hinged to the first connecting plate 7; two ends of the steel pull rod 4 are respectively hinged on the first connecting plates 7 on the two concrete frame columns 2.
In this embodiment, as shown in fig. 1, a second connecting plate 8 is installed at the bottom of the transfer beam 4, and the other end of the damping steel diagonal brace 5 is hinged to the second connecting plate 8.
In this embodiment, as shown in figure 5, the first steel casing 6 is secured to the concrete frame column 2 by shear studs 9; the outer side wall of the first steel casing 6 is provided with a plurality of stiffening ribs 10.
An energy dissipation and vibration reduction (shock) support structure 1-1 shown in figure 1 is particularly a support structure suitable for the first-floor (vehicle section) conversion and the condition that the lower frame column moment is large. A steel pull rod 3 is connected between two concrete frame columns 2 below the conversion beam 4, the steel pull rod 3 is located below the conversion beam 4, and two damping steel inclined struts 5 are installed between the steel pull rod 3 and the conversion beam 4. Wherein, the lower plate surface interval of conversion roof beam 4 is provided with two second connecting plates 8, suit a first steel casing 6 respectively on two concrete frame posts 2 of conversion roof beam 4 below, equal altitude symmetrical arrangement such as two first steel casing 6, the inboard of two first steel casing 6 sets up a first connecting plate 7 respectively, the bottom of damping steel bracing 5 and the tip of steel pull rod 3 all articulate in first connecting plate 7, the top of two damping steel bracing 5 then articulates respectively on two second connecting plates 8, two damping steel bracing 5 symmetry sets up and forms "eight" word structure. The vibration reduction steel inclined strut 5 mainly bears the vertical force transmitted by the upper conversion structure, reduces the shearing force and bending moment of the conversion beam 4 and slows down the vibration induced by the subway operation; the steel pull rod 3 at the lower layer mainly bears tension and reduces bending moment and shearing force transmitted to the concrete frame column 2 by the damping steel inclined strut 5; the vibration reduction steel inclined strut 5, the concrete frame column 2, the steel pull rod 3 and the conversion beam 4 form a space conversion structure, the vertical rigidity of a lower structure is increased, the vibration reduction inclined strut 5 is adopted, the vertical vibration caused by vehicle operation is effectively reduced, and the overall anti-seismic performance and the comfort level of the structure are improved.
The construction method of the energy dissipation and vibration reduction (shock) support structure I1-1 suitable for the situation that the first floor (vehicle section) is converted and the lower frame column moment is large specifically comprises the following steps:
step 1, finishing the steel pull rod 3, the damping steel inclined strut 5 and the first steel sleeve 6 in a factory, wherein the first steel sleeve 6 is preferably a rectangular sleeve and can be used as a section of template of the concrete frame column 2. The first steel sleeve 6 is already provided with a connection plate structure.
And 3, after the frame structure under the cover reaches a certain bearing capacity, namely after the concrete strength of the conversion beam 4 reaches 80%, covering the conversion beam 4 for building construction, wherein at the moment, the steel pull rod 3 and the damping steel inclined strut 5 can bear part of construction load.
Scheme II:
as shown in fig. 2, the present embodiment provides another energy-dissipating vibration-damping support structure 1-1, specifically a support structure suitable for the first floor (vehicle section) conversion and the lower frame column moment is small. A steel pull rod 3 is connected between two concrete frame columns 2 below the conversion beam 4, the steel pull rod 3 is located below the conversion beam 4, and two damping steel inclined struts 5 are installed between the steel pull rod 3 and the conversion beam 4. Wherein, the lower plate surface of conversion roof beam 4 is provided with a second connecting plate 8, suit a first steel casing pipe 6 respectively on two concrete frame posts 2 of conversion roof beam 4 below, equal altitude symmetrical arrangement such as two first steel casing pipes 6, the inboard of two first steel casing pipes 6 sets up a first connecting plate 7 respectively, the bottom of damping steel bracing 5 and the tip of steel pull rod 3 all articulate in first connecting plate 7, the top of two damping steel bracing 5 articulates simultaneously on same second connecting plate 8, two damping steel bracing 5 symmetry sets up and forms "people" word structure. The vibration reduction steel inclined strut 5 mainly bears the vertical force transmitted by the upper conversion structure, reduces the shearing force and bending moment of the conversion beam 4 and slows down the vibration induced by the subway operation; the steel pull rod 3 at the lower layer mainly bears tension and reduces bending moment and shearing force transmitted to the concrete frame column 2 by the damping steel inclined strut 5; the vibration reduction steel inclined strut 5, the concrete frame column 2, the steel pull rod 3 and the conversion beam 4 form a space conversion structure, the vertical rigidity of a lower structure is increased, the vibration reduction inclined strut 5 is adopted, the vertical vibration caused by vehicle operation is effectively reduced, and the overall anti-seismic performance and the comfort level of the structure are improved.
The construction method of the energy dissipation and vibration reduction (shock) support structure I1-1 suitable for the first-floor (vehicle section) conversion and the condition that the lower frame column moment is small specifically comprises the following steps:
step 1, finishing the steel pull rod 3, the damping steel inclined strut 5 and the first steel sleeve 6 in a factory, wherein the first steel sleeve 6 is preferably a rectangular sleeve and can be used as a section of template of the concrete frame column 2. The first steel sleeve 6 is already provided with a connection plate structure.
And 3, after the frame structure under the cover reaches a certain bearing capacity, namely after the concrete strength of the conversion beam 4 reaches 80%, covering the conversion beam 4 for building construction, wherein at the moment, the steel pull rod 3 and the damping steel inclined strut 5 can bear part of construction load.
Example three:
as shown in fig. 3, the embodiment provides an energy dissipation and vibration reduction (shock) support structure 1-2 applicable to a subway vehicle base, which mainly includes a concrete frame column 2, a steel frame beam 11, a conversion beam 4 and a vibration reduction steel inclined strut 5, wherein the concrete frame column 2 is supported below the conversion beam 4, the conversion beam 4 is used for developing a covered building, a second steel sleeve 12 is sleeved on the concrete frame column 2, one end of the vibration reduction steel inclined strut 5 is hinged to the second steel sleeve 12, the other end of the vibration reduction steel inclined strut 5 is hinged to the conversion beam 4, two ends of the steel frame beam 11 are respectively fixedly connected with the two concrete frame columns 2, the steel frame beam 11 is located below the vibration reduction steel inclined strut 5, the steel frame beam 11 is used for forming an upper building under the cover, and the steel frame beam 11 can be used for building an upper small garage.
In this embodiment, as shown in fig. 3, a third connecting plate 13 is mounted on the second steel sleeve 12, and one end of the damping steel inclined strut 5 is hinged to the third connecting plate 13.
In this embodiment, as shown in fig. 3, a fourth connecting plate 14 is installed on the lower bottom plate of the transfer beam 4, and the other end of the damping steel diagonal brace 5 is hinged to the fourth connecting plate 14.
In this embodiment, as shown in fig. 3, a third steel sleeve 15 is further installed on the concrete frame column 2, the third steel sleeve 15 is located below the second steel sleeve 12, a fifth connecting plate 16 is installed on the third steel sleeve 15, and two ends of the steel frame beam 11 are respectively and fixedly connected to the fifth connecting plates 16 on the two concrete frame columns 2.
In this embodiment, as shown in figure 5, the second steel casing 12 and the third steel casing 15 are secured to the concrete frame column 2 by shear studs 9; the outer side walls of the second steel sleeve 12 and the third steel sleeve 15 are provided with a plurality of stiffening ribs 10.
As shown in fig. 3, the present embodiment provides an energy dissipation and vibration reduction (shock) support structure two 1-2, specifically a support structure suitable for the situation of the conversion of the upper-layer car garage of the vehicle section and the large column moment of the lower frame. A steel frame beam 11 is connected between the two concrete frame columns 2 below the conversion beam 4, the steel frame beam 11 is located below the conversion beam 4, and two damping steel inclined struts 5 are arranged between the steel frame beam 11 and the conversion beam 4. The lower plate surface of the conversion beam 4 is provided with two fourth connecting plates 14 at intervals, two concrete frame columns 2 below the conversion beam 4 are respectively sleeved with a second steel sleeve 12, the two second steel sleeves 12 are arranged in equal-height symmetry, the inner sides of the two second steel sleeves 12 are respectively provided with a third connecting plate 13, the bottom ends of the damping steel inclined struts 5 are hinged to the third connecting plates 13, the top ends of the two damping steel inclined struts 5 are respectively hinged to the fourth connecting plates 14, and the two damping steel inclined struts 5 are symmetrically arranged to form an 'eight' -shaped structure. Meanwhile, a third steel sleeve 15 is sleeved on the two concrete frame columns 2 respectively, and the third steel sleeve 15 is arranged close to the second steel sleeve 12 and is positioned below the second steel sleeve 12; and a fifth connecting plate 16 is arranged on the inner side of each third steel sleeve 15, and two ends of the steel frame beam 11 are fixedly connected with the fifth connecting plate 16 through anchor bolts and connecting pieces. Here, the steel frame beam 11 is used as an upper layer structure, and also replaces the steel pull rod 3 in the first or second embodiment as a stress member, the steel frame beam 11 and the damping steel inclined strut 5 together mainly bear the vertical force transmitted by the upper conversion structure, reduce the shearing force and bending moment of the conversion beam 4, and slow down the vibration induced by the subway operation; the steel frame beam 11 at the lower layer mainly bears tension and reduces bending moment and shearing force transmitted to the concrete frame column 2 by the damping steel inclined strut 5; the vibration reduction steel inclined strut 5, the concrete frame column 2, the steel frame beam 11 and the conversion beam 4 form a space conversion structure, the vertical rigidity of a lower structure is increased, the vibration reduction inclined strut 5 is adopted, the vertical vibration caused by vehicle operation is effectively reduced, and the overall anti-seismic performance and the comfort level of the structure are improved.
The construction method of the energy dissipation and vibration reduction (shock) supporting structure II 1-2 suitable for the condition that the upper-layer small garage of the vehicle section is converted and the lower frame column moment is large comprises the following steps:
step 1, finishing the steel frame beam 11, the damping steel inclined strut 5, the second steel sleeve 12 and the third steel sleeve 15 in a factory, wherein the second steel sleeve 12 and the third steel sleeve 15 are preferably rectangular sleeves and can be used as a section of template of the concrete frame column 2. Also, the inner side of the second steel sleeve 12 and the inner side of the third steel sleeve 15 have been provided with a connection plate structure.
And 3, after the frame structure covered under the beam reaches a certain bearing capacity, namely after the concrete strength of the conversion beam reaches 80%, covering the conversion beam 4 for building construction, wherein the steel frame beam 11 and the damping steel inclined strut 5 can bear part of construction load.
Example four:
as shown in fig. 4, the present embodiment provides another energy dissipation and vibration reduction (shock) support structure two 1-2, specifically a support structure suitable for the conversion of the upper-layer car garage of the vehicle section and the smaller column moment of the lower frame. A steel frame beam 11 is connected between the two concrete frame columns 2 below the conversion beam 4, the steel frame beam 11 is located below the conversion beam 4, and two damping steel inclined struts 5 are arranged between the steel frame beam 11 and the conversion beam 4. The lower plate surface of the conversion beam 4 is only provided with a fourth connecting plate 14, two concrete frame columns 2 below the conversion beam 4 are respectively sleeved with a second steel sleeve 12, the two second steel sleeves 12 are arranged in equal-height symmetry, the inner sides of the two second steel sleeves 12 are respectively provided with a third connecting plate 13, the bottom ends of the damping steel inclined struts 5 are hinged to the third connecting plate 13, the top ends of the two damping steel inclined struts 5 are hinged to the same fourth connecting plate 14 at the same time, and the two damping steel inclined struts 5 are symmetrically arranged to form a herringbone structure. Meanwhile, a third steel sleeve 15 is sleeved on the two concrete frame columns 2 respectively, and the third steel sleeve 15 is arranged close to the second steel sleeve 12 and is positioned below the second steel sleeve 12; and a fifth connecting plate 16 is arranged on the inner side of each third steel sleeve 15, and two ends of the steel frame beam 11 are fixedly connected with the fifth connecting plate 16 through anchor bolts and connecting pieces. Here, the steel frame beam 11 is used as an upper layer structure, and also replaces the steel pull rod 3 in the first or second embodiment as a stress member, the steel frame beam 11 and the damping steel inclined strut 5 together mainly bear the vertical force transmitted by the upper conversion structure, reduce the shearing force and bending moment of the conversion beam 4, and slow down the vibration induced by the subway operation; the steel frame beam 11 at the lower layer mainly bears tension and reduces bending moment and shearing force transmitted to the concrete frame column 2 by the damping steel inclined strut 5; the vibration reduction steel inclined strut 5, the concrete frame column 2, the steel frame beam 11 and the conversion beam 4 form a space conversion structure, the vertical rigidity of a lower structure is increased, the vibration reduction inclined strut 5 is adopted, the vertical vibration caused by vehicle operation is effectively reduced, and the overall anti-seismic performance and the comfort level of the structure are improved.
The construction method of the energy dissipation and vibration reduction (shock) supporting structure II 1-2 suitable for the condition that the upper layer of the car garage of the vehicle section is converted and the lower frame column moment is small comprises the following steps:
step 1, finishing the steel frame beam 11, the damping steel inclined strut 5, the second steel sleeve 12 and the third steel sleeve 15 in a factory, wherein the second steel sleeve 12 and the third steel sleeve 15 are preferably rectangular sleeves and can be used as a section of template of the concrete frame column 2. Also, the inner side of the second steel sleeve 12 and the inner side of the third steel sleeve 15 have been provided with a connection plate structure.
And 3, after the frame structure covered under the beam reaches a certain bearing capacity, namely after the concrete strength of the conversion beam reaches 80%, covering the conversion beam 4 for building construction, wherein the steel frame beam 11 and the damping steel inclined strut 5 can bear part of construction load.
Therefore, the energy dissipation and vibration reduction (shock) frame structure and the construction method thereof comprise the concrete frame columns, the steel pull rods (or steel frame beams), the conversion beams and the vibration reduction steel inclined struts. The damping steel inclined strut is hinged with a steel sleeve on the concrete frame column and the upper conversion beam, and mainly bears vertical force transmitted by the upper conversion structure and reduces shearing force and bending moment of the conversion beam, so that vibration induced by subway operation is effectively reduced; the lower layer steel pull rod (or steel frame beam) mainly bears the tensile force and reduces the bending moment and the shearing force transmitted to the frame column by the steel diagonal brace; the vibration reduction steel inclined strut, the frame column, the steel pull rod (or the steel frame beam) and the conversion beam form a space conversion structure, so that the vertical rigidity of a lower structure is increased, and the rigidity mutation of the conversion layer is effectively avoided; due to the adoption of the vibration reduction inclined support, the vertical vibration caused by the running of the vehicle is effectively reduced, the overall anti-seismic performance and the comfort level of the structure are improved, and the practicability is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides an energy dissipation damping bearing structure, its characterized in that, includes concrete frame post, steel pull rod, conversion roof beam and damping steel bracing, the concrete frame post support in the below of conversion roof beam, the top of conversion roof beam is used for developing and covers the building, install first steel casing pipe on the concrete frame post, the one end of damping steel bracing articulate in first steel casing pipe, the other end of damping steel bracing articulate in the conversion roof beam, the both ends of steel pull rod articulate respectively in two on the concrete frame post, just the steel pull rod is located the below of damping steel bracing.
2. An energy dissipating and vibration damping support structure according to claim 1, wherein a first connecting plate is mounted on the first steel sleeve, the one end of the vibration damping steel sprag being hinged to the first connecting plate; and two ends of the steel pull rod are respectively hinged to the first connecting plates on the two concrete frame columns.
3. An energy dissipating and vibration damping support structure according to claim 1, wherein a second connection plate is mounted to the bottom of the transfer beam, the other end of the vibration damping steel sprag being hinged to the second connection plate.
4. An energy dissipating and vibration damping support structure according to claim 1, wherein the first steel sleeve is secured to the concrete frame column by shear studs; the outer side wall of the first steel sleeve is provided with a plurality of stiffening ribs.
5. The utility model provides an energy dissipation damping bearing structure, its characterized in that, includes concrete frame post, steel frame roof beam, conversion roof beam and damping steel bracing, the concrete frame post support in the below of conversion roof beam, the top of conversion roof beam is used for developing and covers the building, install second steel casing pipe on the concrete frame post, the one end of damping steel bracing articulate in second steel casing pipe, the other end of damping steel bracing articulate in the conversion roof beam, the both ends of steel frame roof beam are connected respectively in two on the concrete frame post, the steel frame roof beam is located the below of damping steel bracing, just the steel frame roof beam is used for forming two layers of floor under covering.
6. An energy dissipating and vibration damping support structure according to claim 5, wherein a third connecting plate is mounted on the second steel sleeve, the one end of the vibration damping steel sprag being hinged to the third connecting plate; and a fourth connecting plate is installed at the bottom of the conversion beam, and the other end of the vibration reduction steel inclined strut is hinged to the fourth connecting plate.
7. The energy dissipation and vibration reduction supporting structure according to claim 5, wherein a third steel sleeve is further installed on the concrete frame columns, the third steel sleeve is located below the second steel sleeve, a fifth connecting plate is installed on the third steel sleeve, and two ends of the steel frame beam are respectively and fixedly connected to the fifth connecting plates on the two concrete frame columns.
8. An energy dissipating and vibration damping support structure according to claim 7, wherein the second steel sleeve and/or the third steel sleeve is/are secured to the concrete frame column by shear studs; and a plurality of stiffening ribs are arranged on the outer side wall of the second steel sleeve and/or the third steel sleeve.
9. A construction method of an energy-dissipating and vibration-damping support structure based on any one of claims 1 to 4, characterized by comprising the steps of:
step 1, finishing the steel pull rod, the vibration reduction steel inclined strut and the steel sleeve in a factory, and taking the steel sleeve as a section of template of the concrete frame column;
step 2, the conversion beam and the concrete frame columns are poured, after the formwork is removed, the vibration reduction steel diagonal bracing is installed between the conversion beam and the concrete frame columns, and the steel pull rod is installed between the two concrete frame columns, so that the construction of the frame covering structure is completed;
and 3, after the concrete strength of the conversion beam reaches 80%, covering the conversion beam for construction, and bearing part of construction load by the steel pull rod and the damping steel inclined strut.
10. A construction method of an energy-dissipating and vibration-damping support structure based on any one of claims 5 to 8, comprising the steps of:
step 1, finishing the steel frame beam, the vibration reduction steel inclined strut and the steel sleeve in a factory, and taking the steel sleeve as a section of template of the concrete frame column;
step 2, pouring the conversion beam and the concrete frame columns, mounting the vibration reduction steel diagonal brace between the conversion beam and the concrete frame columns after form removal, mounting the steel frame beam, the steel secondary beam and the steel bar truss floor bearing plate between the two concrete frame columns, and pouring floor concrete, thereby completing construction of covering a two-layer frame structure;
and 3, after the concrete strength of the conversion beam reaches 80%, covering the conversion beam for building construction, wherein the steel frame beam and the damping steel inclined strut bear part of construction load.
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