CN113266191B - Self-adaptive anti-seismic combined column and construction method thereof - Google Patents
Self-adaptive anti-seismic combined column and construction method thereof Download PDFInfo
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- CN113266191B CN113266191B CN202110592200.0A CN202110592200A CN113266191B CN 113266191 B CN113266191 B CN 113266191B CN 202110592200 A CN202110592200 A CN 202110592200A CN 113266191 B CN113266191 B CN 113266191B
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- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 127
- 239000004567 concrete Substances 0.000 claims abstract description 94
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- 238000010008 shearing Methods 0.000 claims description 18
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 description 7
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
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- 230000001680 brushing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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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
- 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
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Abstract
The invention discloses a self-adaptive anti-seismic combined column, which comprises a plurality of ultra-high-performance concrete columns which are distributed in a dispersed manner, wherein common concrete filling columns are filled among the plurality of ultra-high-performance concrete columns, the plurality of ultra-high-performance concrete columns and the common concrete filling column form an integral structure, and at least one connecting component for connecting any two or more ultra-high-performance concrete columns is arranged among the plurality of ultra-high-performance concrete columns. The invention also provides a construction method of the self-adaptive anti-seismic combined column. The self-adaptive anti-seismic composite column has excellent anti-seismic performance and impact resistance, is convenient to construct, has great practical value and good economic benefit, and particularly has wide application prospect in construction and construction of house columns and bridge pier columns.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a combined column and a construction method thereof.
Background
The existing house column and bridge pier column are mostly constructed by adopting an ordinary concrete integral construction mode, as shown in fig. 1-2, the ordinary concrete column after construction is finished is easy to damage under the action of earthquake due to the fact that the ordinary concrete is poor in ductility of the ordinary concrete integral column due to the characteristics of being pulled and weak in shearing performance.
The existing construction technology cannot ensure the earthquake resistance of the common concrete column, and if the cross-sectional area of the common concrete column and the reinforcement reach the effect of Jiang Zhu, the rigidity of the integral cast-in-situ common concrete column is high, the energy dissipation and vibration reduction effects of the integral cast-in-situ common concrete column cannot be exerted under the earthquake action, so that the earthquake resistance of the whole structure is unfavorable, and the earthquake resistance of the structure is unfavorable.
Disclosure of Invention
The invention aims to overcome the defects and the shortcomings in the background art, and provides the self-adaptive anti-seismic composite column with the advantages of good anti-seismic effect, shock resistance, convenience in construction and the like and a construction method thereof. In order to solve the technical problems, the technical scheme provided by the invention is as follows:
The self-adaptive anti-seismic combined column comprises a plurality of ultra-high-performance concrete columns which are distributed in a dispersed manner, wherein common concrete filling columns are filled among the plurality of ultra-high-performance concrete columns, the plurality of ultra-high-performance concrete columns and the common concrete filling columns are of an integral structure, and at least one connecting component for connecting any two or more ultra-high-performance concrete columns is arranged among the plurality of ultra-high-performance concrete columns.
In the invention, the shape of the whole section of the self-adaptive anti-seismic combined column is not limited, so long as the dispersion distribution of the ultra-high-performance concrete columns is ensured, and then the common concrete filling columns are filled between the ultra-high-performance concrete columns and the common concrete filling columns, so that the ultra-high-performance concrete columns and the common concrete filling columns form an integral structure, and the shape of the integral structure is preferably ensured to be the same as that of the self-adaptive anti-seismic combined column. Preferably, the ultra-high performance concrete columns are arranged at other positions in the self-adaptive anti-seismic combined column, where the ultra-high performance concrete columns are not arranged.
In the invention, the connecting component has the function of connecting a plurality of ultra-high performance concrete columns to bear force together, thereby ensuring that the ultra-high performance concrete columns exert the function of flexible columns for energy dissipation and shock absorption, ensuring that the flexible columns do not scatter to bear force together cooperatively, and adjusting the effective length of a single column to have proper slenderness ratio, so that the ultra-high performance concrete columns better exert the stress and shock resistance. The specific structural form of the above-mentioned connection assembly is not limited as long as the above-mentioned function can be exerted.
In the self-adaptive anti-seismic combined column, preferably, one or more connecting components are arranged between two adjacent ultra-high performance concrete columns. The invention is more preferable that a connecting component is arranged between two adjacent ultra-high performance concrete columns, and all the ultra-high performance concrete columns are connected into an integral stress structure through the connecting component, so that the structural characteristics of the self-adaptive anti-seismic combined column are more beneficial to be exerted. In order to ensure that the ultra-high performance concrete columns are still in an integral stress structure during an earthquake, a plurality of connecting components can be selectively arranged according to the requirement.
In the above self-adaptive anti-seismic composite column, preferably, the connecting assembly comprises a shear connector, the shear connector comprises a pair of stress bars and a connecting bar, one ends of the stress bars are respectively and fixedly arranged in the two ultra-high performance concrete columns, and the other ends of the stress bars are connected through the connecting bar. More preferably, the stress bar comprises a pair of U-shaped stress bars, each U-shaped stress bar comprises two straight line sections and a connecting section for connecting the two straight line sections, the pair of U-shaped stress bars are reversely arranged and respectively fixedly arranged in the two ultra-high performance concrete columns through the straight line sections, the connecting sections of the pair of U-shaped stress bars are overlapped and arranged in the common concrete filling columns, and the connecting bars are inserted between the connecting sections which are overlapped and arranged. Through the interaction of the stress ribs and the connecting ribs in the structural form, a plurality of ultra-high-performance concrete columns and common concrete filling columns can be connected into an integral stress structure, so that the self-adaptive earthquake-resistant concrete column has better mechanical properties and can better exert the self-adaptive earthquake-resistant advantage. The straight line section of the U-shaped stress rib extends out of the middle of the cross section of the ultra-high performance concrete column and is staggered with the straight line section of the other U-shaped stress rib, so that the connecting section of the U-shaped stress rib is provided with an overlapping part, and the connecting rib is convenient to penetrate and fix. The U-shaped stress bar can be of a bent structure formed by processing a straight hot-rolled steel bar, and the hot-rolled steel bar is selected because of good ductility, so that the shearing-resistant connecting piece is ensured to have good mechanical properties. One end of the shearing-resistant connecting piece is fixedly arranged on the ultra-high-performance concrete column, and the other end of the shearing-resistant connecting piece is arranged in the common concrete filling column for welding or binding.
In order to ensure that the ultra-high performance concrete columns are still in an integral stress structure during an earthquake, the strength of the shearing-resistant connecting piece needs to meet the requirement, and in the actual process, a single steel bar can be changed into a composite steel bar piece, or a plurality of shearing-resistant connecting pieces are arranged side by side so as to ensure that the shearing-resistant connecting piece is not broken and cannot play a role.
In the above self-adaptive anti-seismic composite column, preferably, a plurality of first longitudinal stress steel bars and a plurality of first circumferential stirrups are arranged in the ultra-high performance concrete column, and the first circumferential stirrups are arranged around the first longitudinal stress steel bars and fixedly connected with the first longitudinal stress steel bars. The end parts of the first longitudinal stress steel bars can be lapped to stress steel bars in the foundation or the node, so that the column structure and the foundation or the node form an integral stress structure.
In the self-adaptive anti-seismic combined column, preferably, the connecting component stretches into the ultra-high performance concrete column and is fixedly connected with the first longitudinal stressed steel bars and/or the first circumferential stirrups. Through the structure, the connection tightness of the shearing-resistant connecting piece and the ultra-high-performance concrete column can be ensured.
In the above self-adaptive anti-seismic composite column, preferably, a plurality of second longitudinal stress steel bars and second circumferential stirrups are arranged in the common concrete filled column, and the second circumferential stirrups are arranged around the second longitudinal stress steel bars and fixedly connected with the second longitudinal stress steel bars. The end parts of the second longitudinal stress steel bars can be lapped to the stress steel bars in the foundation or the node, so that the column structure and the foundation or the node form an integral stress structure. According to different requirements of earthquake-resistant grades, the second longitudinal stress steel bars and the second circumferential stirrups are not arranged in the common concrete filling column selectively, and post-pouring common concrete construction is completed only by plain concrete.
In the self-adaptive anti-seismic combined column, preferably, the plurality of ultra-high performance concrete columns distributed in a dispersed manner are uniformly distributed, and the common concrete filling column filled among the plurality of ultra-high performance concrete columns is in a cross shape or a groined shape. The ultra-high performance concrete columns are uniformly distributed, and the overall mechanical property of the structure is better.
In the self-adaptive anti-seismic combined column, preferably, the material of the ultra-high performance concrete column is made of ultra-high performance concrete with compressive strength of more than 150MPa and reinforcing bar tensile strength of more than 30 MPa; the common concrete filling column is made of C25-C50 common concrete.
The invention also provides a construction method of the self-adaptive anti-seismic combined column, which comprises a construction method I of constructing an ultra-high performance concrete column and then constructing a common concrete filling column or a construction method II of constructing the common concrete filling column and then constructing the ultra-high performance concrete column;
the construction method I comprises the following steps:
s1: arranging built-in steel bars of the ultra-high performance concrete columns at the distribution positions according to the distributed distribution mode of the plurality of ultra-high performance concrete columns, and arranging connecting components; installing a column template of the ultra-high performance concrete column, pouring ultra-high performance concrete, and removing the mould after curing to reach the mould removing strength;
S2: according to the earthquake-proof requirement, selectively arranging built-in reinforcing steel bars of the common concrete filling columns among the multiple ultra-high performance concrete columns, installing column templates of the common concrete filling columns, pouring common concrete, curing to reach the form-removing strength, and removing the form to finish construction; before casting the common concrete, the ultra-high performance concrete column can be subjected to the treatments of rigid brushing, roughening and the like, and the loose concrete on the surface is removed;
The construction method II comprises the following steps:
s1: according to a distributed distribution mode of a plurality of ultra-high performance concrete columns, firstly determining the distribution positions of the ultra-high performance concrete columns; then, selectively arranging built-in reinforcing steel bars of the common concrete filling columns between the multiple ultra-high performance concrete columns according to the anti-seismic requirement, arranging a connecting assembly, installing column templates of the common concrete filling columns, pouring common concrete, curing, and removing the mold after reaching the mold removing strength;
S2: arranging built-in steel bars of the ultra-high performance concrete column at the distribution position of the ultra-high performance concrete column, and connecting the built-in steel bars with a connecting component; and (3) installing a column template of the ultra-high performance concrete column, pouring ultra-high performance concrete, and removing the template after curing to reach the form removal strength, thus finishing the construction. The common concrete column can be subjected to the treatments of rigid brushing, roughening and the like before the ultra-high performance concrete is poured, and the loose concrete on the surface is removed.
The ultra-high performance concrete column may also be prefabricated, which is then hoisted into place after the process is completed in a prefabrication plant or in the field.
Compared with the prior art, the invention has the advantages that:
1. The self-adaptive anti-seismic combined column adopts the ultra-high performance concrete columns which enable the whole column to be dispersed into a plurality of dispersed type, and common concrete is filled in the ultra-high performance concrete columns to form a whole combined column structure of the common concrete filled column, when no earthquake occurs or the earthquake grade is low, the common concrete in the whole combined column cannot crack or be damaged, so that the whole structure has high rigidity, the whole stress is good, and the wind resistance is facilitated; when the earthquake grade is increased to a certain grade, the common concrete in the integral combined column reaches or exceeds the tensile strength or the shear strength to cause cracking or damage, the ultrahigh-performance concrete column in the integral combined column does not reach the cracking strength due to the ultrahigh performance of the ultrahigh-performance concrete column, and the ultrahigh-performance concrete column in the integral combined column is connected through the connecting component to have good ductility and energy dissipation capacity, so that the earthquake-resistant performance is very good, the earthquake-resistant capacity of the whole structure is greatly improved, and the integral combined column is converted into a flexible column, so that the stress condition of a main beam and a column body near the column top is also improved.
2. According to the self-adaptive anti-seismic combined column, the common concrete can be cracked and destroyed under the action of different earthquake grades by adjusting the arrangement of the steel bars in the common concrete filled column, so that the self-adaptive anti-seismic behavior of the combined column is realized; and the flexibility degree of the combined column after the common concrete is damaged can be adjusted by adjusting the number and the rigidity of connecting components connected between the ultra-high performance concrete columns, so that the energy dissipation capacity and the shock resistance of the combined column can be adjusted.
3. The self-adaptive anti-seismic combined column has good shock resistance. The structure of the dispersed ultra-high performance concrete column improves the deformation form and the stress state of the existing reinforced concrete column, the damping effect of the common concrete among the ultra-high performance concrete columns is improved, the damage distribution is more uniform, the residual deformation is obviously reduced, and the damage of a single ultra-high performance concrete column in the combined column has much smaller influence on the whole column compared with the local damage of the whole concrete column, so that the self-adaptive anti-seismic combined column has better shock resistance.
4. The self-adaptive anti-seismic composite column is convenient to repair after earthquake, and the construction is convenient only by removing broken common concrete and re-grouting and pouring under the condition that the damage is available.
5. The construction of the self-adaptive anti-seismic combined column can be integral cast-in-situ construction or assembly construction, and the construction method is simple and easy to implement and has wide popularization value.
In general, from the practical application effect, the adaptive anti-seismic composite column has excellent anti-seismic performance and anti-impact performance, is convenient to construct, has great practical value and good economic benefit, and particularly has wide application prospect in construction and construction of house columns and bridge pier columns.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view (elevation view) of a conventional concrete column for a conventional house column, a bridge pier in the prior art.
Fig. 2 is a schematic cross-sectional view of fig. 1.
Fig. 3 is a schematic structural view (elevation view) of the adaptive anti-seismic composite column according to the embodiment.
Fig. 4 is a schematic structural view of a cross section of the self-adaptive anti-seismic composite column structure in the embodiment (the common concrete filled column is in a cross shape).
Fig. 5 is a cross-sectional view at A-A in fig. 4.
Fig. 6 is another schematic structural view of the cross section of the self-adaptive anti-seismic composite column structure (the common concrete filled column is in a "groined shape") in the embodiment.
Fig. 7 is a schematic structural diagram of another cross section of the adaptive anti-seismic composite column structure according to the embodiment.
Fig. 8 is a front view of a shear connector in an embodiment.
Fig. 9 is a top view of a shear connector in an embodiment.
Fig. 10 is a side view of a shear connector in an embodiment.
Legend description:
1. A common concrete column; 2. ultra-high performance concrete columns; 3. a common concrete filled column; 4. longitudinal steel bars of the common concrete column; 41. a first longitudinal stressed steel bar; 42. a second longitudinal stressed steel bar; 5. a shear connector; 6. ordinary concrete column hoop stirrups; 61. a first circumferential stirrup; 62. a second circumferential stirrup; 7. a stress bar; 71. a straight line segment; 72. a connection section; 9. a connecting rib; 10. a foundation or node; 11. and (5) lacing wires.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or may be prepared by existing methods.
Examples:
As shown in fig. 1 and 2, the structure schematic diagram and the cross-section structure schematic diagram of a common concrete column 1 used for a conventional house column and a bridge pier in the prior art are respectively shown. The common concrete column 1 in the prior art is provided with a common concrete column longitudinal steel bar 4, a common concrete column circumferential stirrup 6 and a lacing wire 11. The shock resistance of the structure is poor.
As shown in fig. 3 to 7, the adaptive earthquake-resistant composite column of the present embodiment includes a plurality of ultra-high performance concrete columns 2 distributed in a dispersed manner, a common concrete filling column 3 is filled between the plurality of ultra-high performance concrete columns 2, the plurality of ultra-high performance concrete columns 2 and the common concrete filling column 3 form an integral structure, and at least one connecting assembly for connecting any two or more ultra-high performance concrete columns 2 is provided between the plurality of ultra-high performance concrete columns 2.
In this embodiment, one or more connecting components are arranged between two adjacent ultra-high performance concrete columns 2.
In this embodiment, the coupling assembling includes shearing connecting piece 5, and shearing connecting piece 5 includes a pair of atress muscle 7 and a connecting rib 9, and the one end of a pair of atress muscle 7 is set firmly respectively in two ultra-high performance concrete columns 2, and the other end of a pair of atress muscle 7 passes through connecting rib 9 and connects. Specifically, as shown in fig. 8 to 10, the stress bars 7 include a pair of U-shaped stress bars, each of the U-shaped stress bars includes two straight line sections 71 and a connecting section 72 for connecting the two straight line sections 71, the pair of U-shaped stress bars are reversely arranged and respectively fixed in the two ultra-high performance concrete columns 2 through the straight line sections 71 thereof, the connecting sections 72 of the pair of U-shaped stress bars are overlapped and arranged in the common concrete filled column 3, and the connecting bars 9 are inserted between the connecting sections 72 which are overlapped and arranged. The connecting ribs 9 are inserted between the connecting sections 72 which are overlapped to form a lock with a certain movement capacity, which is beneficial to the deformation of the self-adaptive anti-seismic combined column.
In this embodiment, the ultra-high performance concrete column 2 is provided with a plurality of first longitudinal stress steel bars 41 and a plurality of first circumferential stirrups 61, and the first circumferential stirrups 61 are arranged around the first longitudinal stress steel bars 41 and connect and fix the first longitudinal stress steel bars 41. The first longitudinal stressed steel bar 41 may extend deep into the foundation or node 10.
In this embodiment, the shearing connectors 5 extend into the ultra-high performance concrete column 2 and are fixedly connected with the first longitudinal stress steel bars 41 and/or the first hoop reinforcement 61.
In this embodiment, a plurality of second longitudinal stress steel bars 42 and second circumferential stirrups 62 are disposed in the common concrete filled column 3, and the second circumferential stirrups 62 are disposed around the second longitudinal stress steel bars 42 and connect and fix the second longitudinal stress steel bars 42. The second longitudinal load-bearing bars 42 may extend into the foundation or node 10.
In this embodiment, the plurality of ultra-high performance concrete columns 2 are uniformly distributed, and the common concrete filling column 3 filled between the plurality of ultra-high performance concrete columns 2 is in a cross shape (as shown in fig. 4) or a well shape (as shown in fig. 6). Of course, in this embodiment, the plurality of ultra-high performance concrete columns 2 may be distributed in other ways, for example, as shown in fig. 7, and the distribution way is not limited in this embodiment.
In the embodiment, the material of the ultra-high performance concrete column 2 is made of ultra-high performance concrete with compressive strength of more than 150MPa and reinforcing bar tensile strength of more than 30 MPa; the common concrete filled column 3 is made of C25-C50 common concrete.
In this embodiment, the cross-sectional shape of the adaptive anti-seismic composite column is not limited, such as the square structure in fig. 2-7, or other structures, and the distribution manner of the plurality of dispersedly distributed ultra-high performance concrete columns 2 is not limited, and the setting positions and the number of the shearing connectors 5 are not limited, so that reasonable selection can be performed according to the stress requirements and the performance requirements.
The construction method of the self-adaptive anti-seismic combined column comprises a construction method I of firstly constructing the ultra-high performance concrete column 2 and then constructing the common concrete filling column 3 or a construction method II of firstly constructing the common concrete filling column 3 and then constructing the ultra-high performance concrete column 2;
The construction method I comprises the following steps:
S1: arranging built-in steel bars of the ultra-high performance concrete columns 2 at the distribution positions of the ultra-high performance concrete columns 2 in a distributed mode, and arranging shearing connectors 5; installing a column template of the ultra-high performance concrete column 2, pouring ultra-high performance concrete, and removing the mould after curing to reach the mould removing strength; the built-in reinforcing steel bars of the ultra-high performance concrete column 2 comprise first longitudinal stress reinforcing steel bars 41 and first circumferential stirrups 61, the first longitudinal stress reinforcing steel bars 41 and the first circumferential stirrups 61 are bound together to form a reinforcing steel bar cage, and the first longitudinal stress reinforcing steel bars 41 and the first circumferential stirrups 61 are selected according to the size, the height and the bearing capacity of the section of the poured ultra-high performance concrete column 2; the shearing resistant connecting piece 5 can be fixedly connected with the first longitudinal stress steel bar 41 and/or the first circumferential stirrup 61;
S3: according to the earthquake-proof requirement, selectively arranging built-in reinforcing steel bars of the common concrete filling columns 3 between the multiple ultra-high performance concrete columns 2, installing column templates of the common concrete filling columns 3, pouring common concrete, curing to reach the form removing strength, and removing the form to finish construction; the ultra-high performance concrete column 2 can be subjected to the treatments of rigid brushing, roughening and the like before the common concrete is poured, the loose concrete on the surface is removed, the ultra-high performance concrete column 2 is wetted before the common concrete is poured, but the pouring surface cannot be provided with water accumulation during the pouring. The built-in reinforcing steel bars of the common concrete filled column 3 comprise second longitudinal stress reinforcing steel bars 42 and second circumferential stirrups 62, the second longitudinal stress reinforcing steel bars 42 and the second circumferential stirrups 62 are bound together to form a reinforcing steel bar cage, the first longitudinal stress reinforcing steel bars 41 and the first circumferential stirrups 61 are selected according to the requirements of stress performance, earthquake resistance and the like, and the second longitudinal stress reinforcing steel bars 42 and the second circumferential stirrups 62 can be omitted according to the requirement of earthquake resistance level.
The construction method II comprises the following steps:
S1: firstly, determining the distribution positions of the ultra-high performance concrete columns 2 (namely reserving the positions of the ultra-high performance concrete columns 2 and filling common concrete in between) according to a mode of distributed distribution of the ultra-high performance concrete columns 2; then, selectively arranging built-in reinforcing steel bars of the common concrete filling columns 3 between the multiple ultra-high performance concrete columns 2 according to the anti-seismic requirement, arranging the shearing-resistant connecting pieces 5, installing column templates of the common concrete filling columns 3, pouring common concrete, curing, and removing the die after reaching the die removing strength; the construction details can refer to a first construction method;
S2: arranging built-in steel bars of the ultra-high performance concrete column 2 at the distribution position of the ultra-high performance concrete column 2, and connecting the built-in steel bars with the shearing-resistant connecting piece 5; and (3) installing a column template of the ultra-high performance concrete column 2, pouring ultra-high performance concrete, and removing the template after curing to reach the form removal strength, thus finishing the construction. The construction details can refer to a first construction method;
in this embodiment, the ultra-high performance concrete column 2 may be a prefabricated column, which is prefabricated or is in place to complete the above-mentioned process, and then is hoisted into place.
Claims (8)
1. The self-adaptive anti-seismic combined column is characterized by comprising a plurality of ultra-high-performance concrete columns (2) which are distributed in a dispersed manner, wherein common concrete filling columns (3) are filled among the plurality of ultra-high-performance concrete columns (2), the plurality of ultra-high-performance concrete columns (2) and the common concrete filling columns (3) form an integral structure, and at least one connecting component for connecting any two or more ultra-high-performance concrete columns (2) is arranged among the plurality of ultra-high-performance concrete columns (2);
the connecting assembly comprises a shearing resistant connecting piece (5), the shearing resistant connecting piece (5) comprises a pair of stress ribs (7) and a connecting rib (9), one ends of the stress ribs (7) are respectively fixedly arranged in the two ultra-high performance concrete columns (2), and the other ends of the stress ribs (7) are connected through the connecting ribs (9);
The U-shaped stress bars (7) comprise a pair of U-shaped stress bars, each U-shaped stress bar comprises two straight line sections (71) and a connecting section (72) used for connecting the two straight line sections (71), each pair of U-shaped stress bars are reversely arranged and fixedly arranged in the two ultra-high performance concrete columns (2) respectively through the straight line sections (71), each pair of connecting sections (72) of the U-shaped stress bars are overlapped and arranged in the common concrete filling column (3), and each connecting bar (9) is inserted between the corresponding connecting sections (72) which are overlapped.
2. The self-adaptive anti-seismic composite column according to claim 1, characterized in that one or more connection assemblies are arranged between two adjacent ultra-high performance concrete columns (2).
3. The self-adaptive earthquake-resistant composite column according to claim 1 or 2, wherein a plurality of first longitudinal stress steel bars (41) and a plurality of first circumferential stirrups (61) are arranged in the ultra-high performance concrete column (2), and the first circumferential stirrups (61) are arranged around the first longitudinal stress steel bars (41) and fixedly connect the first longitudinal stress steel bars (41).
4. A self-adapting anti-seismic composite column according to claim 3, characterized in that said connection assembly extends into said ultra-high performance concrete column (2) and is fixedly connected to said first longitudinal stressed reinforcement (41) and/or to said first circumferential stirrup (61).
5. The self-adaptive earthquake-resistant composite column according to claim 1 or 2, wherein a plurality of second longitudinal stress steel bars (42) and second circumferential stirrups (62) are arranged in the common concrete filled column (3), and the second circumferential stirrups (62) are arranged around the second longitudinal stress steel bars (42) and fixedly connect the second longitudinal stress steel bars (42).
6. The self-adaptive earthquake-resistant composite column according to claim 1 or 2, wherein a plurality of the ultra-high performance concrete columns (2) distributed in a dispersed manner are uniformly distributed, and the common concrete filling columns (3) filled between the plurality of the ultra-high performance concrete columns (2) are in a cross shape or a groined shape.
7. The self-adaptive anti-seismic composite column according to claim 1 or 2, wherein the ultra-high performance concrete column (2) is made of ultra-high performance concrete with compressive strength of more than 150MPa and reinforcing bar tensile strength of more than 30 MPa; the common concrete filling column (3) is made of C25-C50 common concrete.
8. A construction method of the self-adaptive anti-seismic composite column according to any one of claims 1 to 7, comprising a construction method one of constructing the ultra-high performance concrete column (2) and then constructing the ordinary concrete filled column (3) or a construction method two of constructing the ordinary concrete filled column (3) and then constructing the ultra-high performance concrete column (2);
the construction method I comprises the following steps:
S1: arranging built-in steel bars of the ultra-high performance concrete columns (2) at the distribution positions of the ultra-high performance concrete columns (2) in a distributed mode, and arranging connecting components; installing a column template of the ultra-high performance concrete column (2), pouring ultra-high performance concrete, and removing the mould after curing to reach the mould removing strength;
S2: according to the earthquake-proof requirement, selectively arranging built-in reinforcing steel bars of the common concrete filling columns (3) between the multiple ultra-high performance concrete columns (2), installing column templates of the common concrete filling columns (3), pouring common concrete, curing to reach the form-removing strength, and removing the form to finish construction;
The construction method II comprises the following steps:
S1: according to a mode of distributed distribution of a plurality of ultra-high performance concrete columns (2), firstly determining the distribution positions of the ultra-high performance concrete columns; then, selectively arranging built-in reinforcing steel bars of the common concrete filling columns (3) between the multiple ultra-high performance concrete columns (2) according to the anti-seismic requirement, arranging connecting components, installing column templates of the common concrete filling columns (3), pouring common concrete, curing, and removing the die after reaching the die removing strength;
S2: arranging built-in steel bars of the ultra-high performance concrete column (2) at the distribution position of the ultra-high performance concrete column (2), and connecting the built-in steel bars with a connecting component; and (3) installing a column template of the ultra-high performance concrete column (2), pouring ultra-high performance concrete, and removing the mould after curing to reach the mould removing strength, thus finishing the construction.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004622A (en) * | 2009-07-08 | 2011-01-14 | 김영식 | Column member which combines high-strength pc and normal-strength rc |
| CN102226356A (en) * | 2011-04-21 | 2011-10-26 | 绍兴鉴湖建工集团有限公司 | Construction method of high-performance concrete core columns |
| CN102493602A (en) * | 2011-11-29 | 2012-06-13 | 东南大学 | Ductile concrete column capable of delaying local buckling of steel bars and manufacturing method thereof |
| CN105756286A (en) * | 2016-04-22 | 2016-07-13 | 广西大学 | Four-bundle ultrahigh-performance concrete restrained common concrete rectangular column |
| CN108166682A (en) * | 2018-02-08 | 2018-06-15 | 沈阳建筑大学 | Built-in prefabricated core column composite column structure and preparation method thereof |
| CN216949735U (en) * | 2021-05-28 | 2022-07-12 | 湖南工业大学 | Self-adaptive anti-seismic combined column |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190127966A1 (en) * | 2017-11-01 | 2019-05-02 | Marlon Howard Stewart | Permanent forms for composite construction columns and beams and method of building construction |
| US10344480B2 (en) * | 2017-12-04 | 2019-07-09 | The Florida International University Board Of Trustees | Composite construct and methods and devices for manufacturing the same |
-
2021
- 2021-05-28 CN CN202110592200.0A patent/CN113266191B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004622A (en) * | 2009-07-08 | 2011-01-14 | 김영식 | Column member which combines high-strength pc and normal-strength rc |
| CN102226356A (en) * | 2011-04-21 | 2011-10-26 | 绍兴鉴湖建工集团有限公司 | Construction method of high-performance concrete core columns |
| CN102493602A (en) * | 2011-11-29 | 2012-06-13 | 东南大学 | Ductile concrete column capable of delaying local buckling of steel bars and manufacturing method thereof |
| CN105756286A (en) * | 2016-04-22 | 2016-07-13 | 广西大学 | Four-bundle ultrahigh-performance concrete restrained common concrete rectangular column |
| CN108166682A (en) * | 2018-02-08 | 2018-06-15 | 沈阳建筑大学 | Built-in prefabricated core column composite column structure and preparation method thereof |
| CN216949735U (en) * | 2021-05-28 | 2022-07-12 | 湖南工业大学 | Self-adaptive anti-seismic combined column |
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