CN111155645A - Concrete dysmorphism post beam column node reinforced structure that shears - Google Patents
Concrete dysmorphism post beam column node reinforced structure that shears Download PDFInfo
- Publication number
- CN111155645A CN111155645A CN202010063665.2A CN202010063665A CN111155645A CN 111155645 A CN111155645 A CN 111155645A CN 202010063665 A CN202010063665 A CN 202010063665A CN 111155645 A CN111155645 A CN 111155645A
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- Prior art keywords
- shaped
- steel
- concrete
- column
- node
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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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 a shearing-resistant reinforcing structure for a beam-column joint of a concrete special-shaped column, wherein an L-shaped section column and a concrete beam form a connecting joint; the root of a concrete beam of the connecting node is anchored with U-shaped steel through a bolt, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through a bolt, an internal corner of the connecting node is anchored with L-shaped angle steel through a bolt, and an external corner of the connecting node is anchored with dorsal limb angle steel through a bolt; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the back limb angle steel are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces; a square steel plate is embedded in the center of the rectangular unit frame in a drilling mode, and the square steel plate and the concrete special-shaped column are connected in a penetrating mode through high-strength bolts. The invention has the characteristics of reasonable stress, simple structure and convenient component processing, and effectively improves the shearing resistance and the seismic performance of the connecting node of the concrete special-shaped column and the concrete beam.
Description
Technical Field
The invention belongs to the technical field of structural engineering, and particularly relates to shearing resistance and reinforcement of a concrete special-shaped column joint.
Background
The special-shaped column structure increases the building 'rate of housing' due to the homogenization of the column ridges by the filling walls, and has strong advantages in the field of modern residential buildings. Compared with a column with a rectangular section, the section form of the special-shaped column is characterized by L shape, T shape, cross shape and the like, and the phenomena of slender section of column limbs, crowded reinforcing steel bars in nodes and the like are caused, so that force transfer is complex. A large number of researches show that in the special-shaped column frame structure, the concrete beam column joint is a large link of the sudden change of the earthquake resistance, the insufficient shearing resistance of the joint is often a key link of the structural damage, and the special-shaped column frame structure is extremely fatal if scientific design and reinforcement and repair after shearing and cracking are not carried out. In order to further improve the seismic performance of the concrete special-shaped column structure and the shearing resistance of the node, the invention strengthens the beam-column node of the concrete special-shaped column by adopting a mode of reinforcing section steel and a steel plate. The invention can provide a concrete special-shaped column frame node which is reasonable in stress, clear in force transmission, simple in structure and high in shearing resistance and seismic performance.
Disclosure of Invention
The invention aims to solve the problem of insufficient shearing resistance in the prior art, and provides a shearing resistance reinforcing structure for a beam column node of a concrete special-shaped column.
The technical scheme adopted by the invention is as follows: a shear-resistant reinforcing structure for a beam column joint of a concrete special-shaped column comprises an L-shaped section column, a T-shaped section column, a cross-shaped section column, a concrete beam and a floor slab;
the L-shaped section column and the concrete beam form a connecting node; the root of a concrete beam of the connecting node is anchored with U-shaped steel through a bolt, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through a bolt, an internal corner of the connecting node is anchored with L-shaped angle steel through a bolt, and an external corner of the connecting node is anchored with dorsal limb angle steel through a bolt; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the back limb angle steel are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces;
the T-shaped cross-section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored with U-shaped steel through bolts, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through bolts, the internal corner of the connecting node is anchored with L-shaped angle steel through bolts, and the outer side surface of the flange of the T-shaped cross-section column of the connecting node is anchored with a strip-shaped steel plate through bolts; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the strip-shaped steel plate are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces;
the cross-shaped section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored with U-shaped steel through bolts, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through bolts, and the internal corner of the connecting node is anchored with L-shaped angle steel through bolts; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces;
a square steel plate is embedded in the center of the rectangular unit frame in a drilling mode, and the square steel plate and the concrete special-shaped column are connected in a penetrating mode through high-strength bolts; the square steel plates are connected with the intersection points of the rectangular unit frames in a welding mode through the oblique shear-resistant steel plates.
Preferably, the thicknesses of the U-shaped steel, the L-shaped flat steel, the L-shaped angle steel, the back limb angle steel, the strip-shaped steel plate, the shear-resistant steel plate and the upper and lower limb connecting pieces are all 5-15 mm.
Preferably, the width of the U-shaped steel should be 1 times the width of the concrete beam.
Preferably, the width of the L-shaped flat steel is 1 time of the thickness of the concrete special-shaped column limb.
Preferably, the width of the upper limb connecting piece and the lower limb connecting piece is 5-10 mm.
Preferably, the bolt is a high-strength bolt.
The invention has the beneficial effects that:
firstly), adopt the mode of punching to fix shaped steel and steel sheet, both convenient construction can guarantee to consolidate concrete structure under the condition of not destroying concrete structure again.
Secondly), the reinforced section steel and the steel plate of the concrete special-shaped column node greatly improve the shearing resistance and the pressure resistance of the concrete special-shaped column, and can greatly improve the mechanical property of a cracked concrete structure, thereby ensuring the safety of a building and prolonging the service life of the building.
Thirdly), the node is simple in reinforcing structure and can shorten the construction period.
In conclusion, the special-shaped column structure system has the characteristics of reasonable stress, simple structure and convenience in component processing and installation, can effectively improve the shearing resistance and the seismic performance of the connecting node of the special-shaped concrete column and the concrete beam, and is favorable for popularizing the application of the special-shaped column structure system in buildings in seismic fortification areas with higher intensity.
Drawings
FIGS. 1-2 are schematic views of the shear reinforcement structure for the L-shaped section column joint according to the present invention;
3-4 are schematic views of the T-section column joint shear reinforcement structure of the present invention;
FIG. 5 is a schematic view of the shear reinforcement structure of the cross-section column node of the present invention.
In the figure: 1, L-shaped section column 2, concrete beam 3, floor 4, L-shaped flat steel 5, U-shaped section steel 6, L-shaped angle steel 7, U-shaped section steel 8, shear steel plate 9, lower limb connecting piece 10, upper limb connecting piece 11, high-strength bolt 12, square steel plate 13 and back limb angle steel.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-5, a shear-resistant reinforcing structure for a beam-column joint of a concrete special-shaped column comprises an L-shaped section column 1, a T-shaped section column, a cross-shaped section column, a concrete beam and a floor slab;
the L-shaped section column 1 and the concrete beam 2 form a connecting node, the root of the concrete beam 2 of the connecting node is anchored with U-shaped section steel 5 by adopting a high-strength bolt 11, the bottom of a floor slab 3 of the connecting node is anchored with L-shaped flat steel 4 by adopting the high-strength bolt 11, the internal corner of the connecting node is anchored with L-shaped angle steel 6 by adopting the high-strength bolt 11, and the external corner of the connecting node is anchored with back limb angle steel 13 by adopting the high-strength bolt 11; the U-shaped steel 5 and the L-shaped angle steel 6 are connected into a rectangular unit frame through an upper limb connecting piece 10 and a lower limb connecting piece 9, and the U-shaped steel 5 and the back limb angle steel 13 are connected into the rectangular unit frame through the upper limb connecting piece 10 and the lower limb connecting piece 9;
the T-shaped cross-section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored with U-shaped steel by adopting high-strength bolts, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel by adopting high-strength bolts, the internal corner of the connecting node is anchored with L-shaped angle steel by adopting high-strength bolts, and the outer side surface of the flange of the T-shaped cross-section column of the connecting node is anchored with a strip-shaped steel plate by adopting high-strength bolts; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the strip-shaped steel plate are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces;
the cross-shaped section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored by a bolt to form U-shaped steel, the bottom of a floor slab of the connecting node is anchored by a high-strength bolt to form L-shaped flat steel, and the internal corner of the connecting node is anchored by a high-strength bolt to form L-shaped angle steel; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces;
a square steel plate 12 is embedded in the center of the rectangular unit frame in a drilling mode, and the square steel plate 12 is connected with the L-shaped section column 1 in a penetrating mode through a high-strength bolt 11; the square steel plates 12 are connected with the intersection point of the rectangular unit frame through the oblique shear steel plate 8 in a welding mode.
The thicknesses of the U-shaped steel, the L-shaped flat steel, the L-shaped angle steel, the back limb angle steel, the strip-shaped steel plate, the shear-resistant steel plate and the upper and lower limb connecting pieces are all 5-15 mm; the width of the L-shaped flat steel is 1 time of the thickness of the concrete special-shaped column limb; the width of the upper limb connecting piece and the width of the lower limb connecting piece are 5-10 mm.
The invention reinforces the exterior of the concrete special-shaped column beam column joint with certain section steel and steel plates, thereby improving the mechanical property: the method mainly aims at further improving the shear reinforcement at the special-shaped column node; secondly, aiming at the purposes of saving steel and reducing the manufacturing cost, the special-shaped column structure can be popularized and applied in high-rise buildings and buildings in high earthquake intensity areas, particularly high-rise buildings in areas with earthquake fortification intensity higher than 8 degrees.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the concrete beam comprises an L-shaped section column, a T-shaped section column, a cross-shaped section column, a concrete beam and a floor slab;
the L-shaped section column and the concrete beam form a connecting node; the root of a concrete beam of the connecting node is anchored with U-shaped steel through a bolt, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through a bolt, an internal corner of the connecting node is anchored with L-shaped angle steel through a bolt, and an external corner of the connecting node is anchored with dorsal limb angle steel through a bolt; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the back limb angle steel are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces;
the T-shaped cross-section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored with U-shaped steel through bolts, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through bolts, the internal corner of the connecting node is anchored with L-shaped angle steel through bolts, and the outer side surface of the flange of the T-shaped cross-section column of the connecting node is anchored with a strip-shaped steel plate through bolts; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces, and the U-shaped steel and the strip-shaped steel plate are connected into the rectangular unit frame through the upper limb connecting pieces and the lower limb connecting pieces;
the cross-shaped section column and the concrete beam form a connecting node, the root of the concrete beam of the connecting node is anchored with U-shaped steel through bolts, the bottom of a floor slab of the connecting node is anchored with L-shaped flat steel through bolts, and the internal corner of the connecting node is anchored with L-shaped angle steel through bolts; the U-shaped steel and the L-shaped angle steel are connected into a rectangular unit frame through upper limb connecting pieces and lower limb connecting pieces;
a square steel plate is embedded in the center of the rectangular unit frame in a drilling mode, and the square steel plate and the concrete special-shaped column are connected in a penetrating mode through high-strength bolts; the square steel plates are connected with the intersection points of the rectangular unit frames in a welding mode through the oblique shear-resistant steel plates.
2. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: and the oblique shear-resistant steel plate is bonded with the surface of the special-shaped column by using structural adhesive.
3. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the anchoring of the screw rod of the high-strength bolt in the concrete special-shaped column and the concrete beam is carried out by adopting bar planting glue.
4. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the thicknesses of the U-shaped steel, the L-shaped flat steel, the L-shaped angle steel, the back limb angle steel, the strip-shaped steel plate, the shear-resistant steel plate and the upper and lower limb connecting pieces are all 5-15 mm.
5. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the width of the U-shaped steel is 1 time of that of the concrete beam.
6. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the width of the L-shaped flat steel is 1 time of the thickness of the concrete special-shaped column limb.
7. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the width of the upper limb connecting piece and the width of the lower limb connecting piece are 5-10 mm.
8. The utility model provides a reinforced structure that shears of concrete dysmorphism post beam column node which characterized in that: the bolts are high-strength bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063665.2A CN111155645A (en) | 2020-01-20 | 2020-01-20 | Concrete dysmorphism post beam column node reinforced structure that shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063665.2A CN111155645A (en) | 2020-01-20 | 2020-01-20 | Concrete dysmorphism post beam column node reinforced structure that shears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111155645A true CN111155645A (en) | 2020-05-15 |
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ID=70564604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010063665.2A Pending CN111155645A (en) | 2020-01-20 | 2020-01-20 | Concrete dysmorphism post beam column node reinforced structure that shears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111155645A (en) |
-
2020
- 2020-01-20 CN CN202010063665.2A patent/CN111155645A/en active Pending
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