CN108331177B - Mounting and fixing structure and construction and fixing method for reinforced concrete connecting piece and perforated steel bar - Google Patents
Mounting and fixing structure and construction and fixing method for reinforced concrete connecting piece and perforated steel bar Download PDFInfo
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- CN108331177B CN108331177B CN201810050457.1A CN201810050457A CN108331177B CN 108331177 B CN108331177 B CN 108331177B CN 201810050457 A CN201810050457 A CN 201810050457A CN 108331177 B CN108331177 B CN 108331177B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
- 239000010959 steel Substances 0.000 title claims abstract description 75
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000011150 reinforced concrete Substances 0.000 title claims description 9
- 239000004567 concrete Substances 0.000 claims abstract description 87
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 239000011148 porous material Substances 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention provides an installation and fixation structure of a steel-concrete connector and a perforated steel bar and a construction and fixation method, wherein the installation and fixation structure comprises a base plate, the steel-concrete connector, the perforated steel bar and a concrete layer, a plurality of steel-concrete connectors which play a role of shearing resistance are arranged on the base plate at intervals, a through hole is formed in each steel-concrete connector, the through holes in adjacent steel-concrete connectors are communicated, the perforated steel bar sequentially penetrates through the steel-concrete connectors through the through holes, a positioning and supporting device is arranged on the inner wall of each through hole and used for supporting the perforated steel bar, the whole perforated steel bar penetrates through the center of each through hole through the positioning and supporting device, and the concrete layer is poured on the whole base plate and covers all the steel-concrete connectors. The invention solves the problem of how to accurately and efficiently install and position the perforated steel bar in the perforated center of the perforated plate connecting piece, and further improves the shear strength, the rigidity and the fatigue performance of the whole fixed structure.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and relates to a mounting and fixing structure and a construction and fixing method of a steel-concrete connecting piece and a perforated steel bar.
Background
In recent years, a steel-concrete composite structure has been widely used in civil engineering construction because it can sufficiently exert the advantages of two materials.
In a composite structure, shear connectors are required to be arranged on the steel-concrete junction surface to resist the shear force between the interfaces and reduce the relative slip. In construction, a steel-concrete connector (which may be referred to as a perforated plate connector or a PBL shear key in this application) is a shear connector that is used to resist load by forming a structure similar to a pin bolt in concrete by perforating a steel plate and matching with perforated steel bars, so as to achieve the technical effects of enhancing shear strength, rigidity and fatigue performance.
In actual engineering construction, a plurality of perforated plate connectors are generally transversely arranged on a steel-concrete joint surface, and the perforated steel bars are not easily fixed to the center of a perforated hole due to the large length of the perforated steel bars, and the position of the perforated steel bars greatly influences the shear strength, the rigidity and the ductility of the steel-concrete connector.
Specifically, when the perforated steel bar is positioned in the center of the opening, the perforated concrete is in a three-dimensional stress state, the area range in the state is large, the perforated steel bar can fully exert a shear-resistant effect, and meanwhile, the shear-resistant strength, the rigidity and the ductility of the connecting piece are good; when the perforated steel is close to or far from the stressed edge, the perforated steel is likely to shear prematurely or fail to participate in resisting shear, resulting in a decrease in ductility and strength of the connection.
Therefore, it is necessary to provide a positioning and fixing device for the perforated steel bars to ensure the mechanical properties of the steel-concrete connecting piece.
Disclosure of Invention
In order to overcome the defects in the prior art, an installation and fixation structure and a construction and fixation method for a steel-concrete connector and a perforated steel bar are provided, so that the problem of how to accurately and efficiently install and position the perforated steel bar in the center of the opening of the perforated plate connector is solved, and the shear strength, the rigidity and the fatigue performance of the whole fixation structure are further improved.
In order to achieve the above purpose, the solution of the invention is:
the utility model provides an at first, provide an installation fixed knot of steel-concrete connector and perforation reinforcing bar constructs, including base plate, steel-concrete connector, perforation reinforcing bar and concrete layer, a plurality of play shear force effect steel-concrete connector interval arrange in on the base plate, every the last through-hole of having seted up of steel-concrete connector is adjacent on the steel-concrete connector the through-hole communicates with each other, the perforation reinforcing bar passes through the through-hole wears to locate in proper order on the steel-concrete connector, is equipped with the location strutting arrangement on the inner wall of every through-hole for supporting the perforation reinforcing bar, whole the perforation reinforcing bar passes through the location strutting arrangement wears to locate every the center of through-hole, concrete layer pours and locates wholly on the base plate and cover all steel-concrete connector and perforation reinforcing bar.
Preferably, the positioning and supporting device comprises an upper supporting surface and a lower supporting surface, the lower supporting surface is recessed towards the upper supporting surface to form a clamping groove, the positioning and supporting device is inserted into the lower edge of the inner wall of the through hole through the clamping groove, and the perforated steel bar is supported on the upper supporting surface and is located in the center of the through hole.
Preferably, the lower supporting surface is provided with an anti-falling underframe, and the anti-falling underframe radially extends out of two ends of the hole wall of the through hole and is clamped on two side surfaces of the steel-concrete connecting piece.
Preferably, the positioning and supporting device is a trapezoid-like or fan-shaped skeleton structure and further comprises an upper arc-shaped supporting rod, a lower arc-shaped supporting rod, radial supporting rods, an axial supporting rod and a hole wall supporting rod, the upper arc-shaped supporting rod is positioned at the outer edge of the upper supporting surface, the lower arc-shaped supporting rod is positioned at the outer edge of the lower supporting surface, the radial supporting rod is fixedly connected between the upper arc-shaped supporting rod and the lower arc-shaped supporting rod, the axial supporting rod is fixedly connected between two adjacent upper arc-shaped supporting rods positioned on the upper supporting surface, the hole wall supporting rod is fixedly connected between two adjacent radial supporting rods on the same radial cross section, the lengths of the axial supporting rod and the hole wall supporting rod are greater than the hole wall thickness of the through hole, and a spacing space is formed, and the hole wall support rod and the lower arc-shaped support rod are enclosed to form the clamping groove, the lower arc-shaped support rod radially extends out of the through hole and serves as the anti-falling underframe, the hole wall support rod is supported on the lower section of the through hole on the hole wall, and the lower arc-shaped support rod is clamped on the two side faces of the steel-concrete connecting piece outside the through hole.
Preferably, the axial support rod and the hole wall support rod are parallel to each other and the distance of the hole wall support rod plus the radius of the perforated steel bar is equal to the hole radius of the through hole, and the expansion radians of the upper arc-shaped support rod and the lower arc-shaped support rod are greater than 90 degrees and less than 180 degrees.
In order to better achieve the above object, the present invention further provides a construction fixing method for a steel-concrete connector and a perforated steel bar, comprising the following steps:
providing a base plate, a steel-concrete connecting piece, a perforated steel bar and a concrete layer;
arranging a plurality of steel-concrete connecting pieces which play a role of shearing resistance on the base plate at intervals, and arranging through holes on each steel-concrete connecting piece, wherein the through holes on the adjacent steel-concrete connecting pieces need to be communicated;
a positioning and supporting device is arranged on the inner wall of each through hole to support the perforated steel bar;
sequentially penetrating the perforated steel bars on the reinforced concrete connecting piece through the through holes;
the positioning and supporting device is used for spacing and supporting the perforated reinforcing steel bars one by one so that the whole perforated reinforcing steel bar penetrates through the center of each through hole;
and pouring the concrete layer on the whole base plate and covering all the steel-concrete connecting pieces and the perforated steel bars.
Preferably, the positioning and supporting device is applied by the following steps:
an upper supporting surface and a lower supporting surface are respectively arranged on the positioning and supporting device;
sinking the lower support surface to the upper support surface to form a clamping groove;
the positioning and supporting device is inserted into the lower edge of the inner wall of the through hole through the clamping groove;
and supporting the perforated steel bar on the upper supporting surface and penetrating the perforated steel bar in the center of the through hole.
Preferably, the positioning and supporting device is applied, and the method further comprises the following steps:
and the lower supporting surface is provided with an anti-drop underframe, and the anti-drop underframe radially extends out of the two ends of the hole wall of the through hole and is clamped on the two side surfaces of the reinforced concrete connecting piece.
Preferably, the specific setting and application of the positioning and supporting device in actual construction comprises the following steps:
a trapezoid-like or fan-shaped framework structure is adopted as the positioning and supporting device, and the positioning and supporting device specifically comprises an upper arc-shaped supporting rod, a lower arc-shaped supporting rod, a radial supporting rod, an axial supporting rod and a hole wall supporting rod;
the upper arc-shaped supporting rod is arranged at the outer edge of the upper supporting surface, the lower arc-shaped supporting rod is arranged at the outer edge of the lower supporting surface, the radial supporting rods are fixedly connected between the upper arc-shaped supporting rod and the lower arc-shaped supporting rod, the axial supporting rod is fixedly connected between two adjacent upper arc-shaped supporting rods arranged on the upper supporting surface, the hole wall supporting rod is fixedly connected between two adjacent radial supporting rods on the same radial cross section, the lengths of the axial supporting rod and the hole wall supporting rod are set to be larger than the thickness of the hole wall of the through hole, a spacing space is formed between the fixed position of the hole wall supporting rod and the lower supporting surface, the clamping groove is formed by enclosing the hole wall supporting rod and the lower arc-shaped supporting rod, and the lower arc-shaped supporting rod radially extending out of the through hole is, and supporting the hole wall supporting rods on the lower section of the hole wall of the through hole, and clamping the lower arc-shaped supporting rods on two side surfaces of the steel-concrete connecting piece outside the through hole.
Preferably, when the axial support rod and the hole wall support rod are arranged and applied, the method further comprises the following steps:
will axial bracing piece with the pore wall bracing piece is parallel to each other and guarantees that the interval that both are parallel adds the radius of perforation reinforcing bar equals the hole radius of through-hole, will go up the arc bracing piece and the expansion radian of arc bracing piece is set for and is greater than 90 and less than 180 down.
The mounting and fixing structure of the reinforced concrete connecting piece and the perforated steel bar has the beneficial effects that:
1) the steel-concrete connecting piece is before arranging the perforation reinforcing bar, through installing the location strutting arrangement who is used for supporting the perforation reinforcing bar in each round hole department, makes the accurate arrangement of perforation reinforcing bar put at the round hole central point, has guaranteed the shear behavior of connecting piece.
2) The central angle that location strutting arrangement expanded is less than 180, and location strutting arrangement's total diameter length is less than the round hole diameter, makes location strutting arrangement need not be with the help of other instruments, can manually install the round hole pore wall to avoided other reinforcing bars mistake to penetrate this location strutting arrangement, made the installation easy and simple to handle, the efficiency of construction is high.
3) The length of radial bracing piece is greater than the distance of perforation reinforcing bar surface to through-hole pore wall, and simultaneously, the anti-drop chassis forms inside sunken draw-in groove with the pore wall bracing piece to make whole location strutting arrangement insert reliably and steadily establish and install on the pore wall, and effectively prevent that location strutting arrangement rocks or drops when perforation reinforcing bar and pour, vibrate the concrete.
4) The central angle of the unfolded positioning and supporting device is larger than 90 degrees, so that the distance between the rod pieces is larger, concrete aggregate easily enters the round hole, and the mechanical property of the concrete in the round hole is ensured.
5) The positioning and supporting device is in a fan-shaped circular arc shape and is concentric with the through hole, so that the positioning and supporting device cannot influence the positioning of the perforated steel bar due to the angle error possibly generated when the positioning and supporting device is installed, and the position of the positioning and supporting device is prevented from being accurately and repeatedly adjusted when the positioning and supporting device is installed.
Drawings
FIG. 1 is a schematic cross-sectional view of the steel-concrete connector and the perforated steel bar mounting and fixing structure according to the present invention;
FIG. 2 is an enlarged schematic view of a single positioning and supporting device corresponding to FIG. 1;
FIG. 3 is a schematic view of an enlarged structure corresponding to the dotted line in area A of FIG. 1 in an uninstalled state;
fig. 4 is a schematic view of an enlarged structure corresponding to the dotted line of the area a in fig. 1 in a mounted state.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Referring to fig. 1 and 2, the present invention firstly provides a mounting and fixing structure of a steel-concrete connector and a perforated steel bar, comprising a base plate 2, a steel-concrete connector 3, a perforated steel bar 5 and a concrete layer 6, wherein a plurality of steel-concrete connectors 3 playing a role of shear resistance are arranged on the base plate 2 at intervals, each steel-concrete connector 3 is provided with a through hole 4, the through holes 4 on adjacent steel-concrete connectors 3 are communicated, the perforated steel bars 5 sequentially penetrate through the steel-concrete connecting piece 3 through the through holes 4, the inner wall of each through hole 4 is provided with a positioning and supporting device 1 for supporting the perforated steel bars 5, the whole perforated steel bar 5 penetrates through the center of each through hole 4 through the positioning and supporting device 1, the concrete layer 6 is poured on the whole base plate 2 and covers all the steel-concrete connecting pieces 3 and the perforated steel bars 5.
As shown in fig. 3 and 4, specifically:
the positioning and supporting device 1 comprises an upper supporting surface 90 and a lower supporting surface 92, the lower supporting surface 92 is recessed towards the upper supporting surface 90 to form a clamping groove 99, the positioning and supporting device 1 is inserted into the lower edge of the inner wall of the through hole 4 through the clamping groove 99, and the perforated steel bar 5 is supported on the upper supporting surface 90 and is located in the center of the through hole 4. The lower supporting surface 92 may be provided with an anti-drop chassis, and the anti-drop chassis radially extends out of two ends of the hole wall of the through hole 4 and is clamped on two side surfaces of the steel-concrete connector 3.
Preferably, the positioning and supporting device 1 is a trapezoid-like or fan-shaped skeleton structure, the skeleton structure can be made of engineering materials with certain rigidity, the skeleton structure includes an upper arc-shaped supporting rod 7, a lower arc-shaped supporting rod 10, radial supporting rods 9, an axial supporting rod 8 and a hole wall supporting rod 11, the upper arc-shaped supporting rod 7 is located at the outer edge of the upper supporting surface 90, the lower arc-shaped supporting rod 10 is located at the outer edge of the lower supporting surface 92, the radial supporting rod 9 is fixedly connected between the upper arc-shaped supporting rod 7 and the lower arc-shaped supporting rod 10, the axial supporting rod 8 is fixedly connected between two adjacent upper arc-shaped supporting rods 7 located on the upper supporting surface 90, the hole wall supporting rod 11 is fixedly connected between two adjacent radial supporting rods 9 on the same radial cross section, the lengths of the axial supporting rod 8 and the hole wall supporting rod 11 are greater than the hole wall thickness of, the fixed position of pore wall bracing piece 11 with have the interval space between the under bracing face 92, and then pore wall bracing piece 11 with arc bracing piece 10 encloses to close down and forms draw-in groove 99 radially stretches out outside through-hole 4 arc bracing piece 10 is down regarded as the anti-drop chassis, pore wall bracing piece 11 support in the hypomere of through-hole 4 on the pore wall, arc bracing piece 10 card is located down outside through-hole 4 on the both sides face of steel-concrete connection 3.
Preferably, the distance between the axial support bar 8 and the hole wall support bar 11 which are parallel to each other and the radius of the perforated steel bar 5 is equal to the hole radius of the through hole 4, and the expansion radians of the upper arc-shaped support bar 7 and the lower arc-shaped support bar 10 are greater than 90 ° and less than 180 °.
After having the above structural features, the present invention can be implemented as follows:
in the combined structure, the steel structure mother plate 2 and the concrete plate 6 are combined into a whole through the steel-concrete connecting piece 3 to bear force jointly. The steel-concrete connecting piece 3 is formed by arranging a round hole 4 on a flat steel plate, arranging a perforated steel bar 5 and vertically welding the steel-concrete connecting piece on a steel structure mother plate 2. Shear is resisted primarily by the concrete 6 and perforated steel bars 5 in the circular holes 4. The shear strength, rigidity and ductility of the steel-concrete joint 3 are affected by the position of the perforated steel bars 5 in the circular holes 4. The fixing device 1 is arranged on the hole wall of the round hole 4 of the steel-concrete connecting piece 3, so that the perforated steel bar 5 can be fixed at the central position of the round hole 4, and the shearing resistance of the steel-concrete connecting piece 3 can be ensured.
The specific structural form of the fixing device 1 is as follows:
as shown in fig. 2, the fixing device 1 includes an upper fixing groove formed by upper arc-shaped steel bars 7, a steel bar support bar 8, a radial support body 9, an anti-drop support body formed by lower arc-shaped steel bars 10, and a hole wall support bar 11. Reinforcing bar fixed slot 7, radial supporter 9 and anti-drop supporter include two front and back, are connected by reinforcing bar bracing piece 8 and pore wall bracing piece 11 and form spatial structure. The reinforcing bar fixing groove 7 and the reinforcing bar supporting rod 8 form a positioning part, and the perforated reinforcing bar 5 is fixed in the center of the round hole. The anti-drop supporter and pore wall bracing piece 11 form the recess, make fixing device 1 stable mounting at the pore wall of round hole 4, prevent that fixing device 1 from dropping. The radial support 9 provides support for the fixing device 1, so that the whole structure is stable.
The field installation steps specifically include:
in practical applications of the connector, the diameter of the through hole 4 is larger than that of the perforated steel bar 5 because it is not economical to set the diameter of the perforated steel bar 5 and the diameter of the through hole 4 to be consistent and it is not reasonable in terms of force.
As shown in fig. 3, firstly, the fixing device 1 is placed into each round hole 4 along the diameter of the round hole, then the fixing device 1 is moved vertically downwards, so that the hole wall support rod 11 is in contact with the hole wall of the round hole 4, and the anti-falling support bodies are arranged on two sides of the steel-concrete connecting piece 3; penetrating the perforated steel bar 5 into the round hole 4, and placing the perforated steel bar on the steel bar fixing groove 7 and the steel bar supporting rod 8; after the installation, as shown in fig. 4, the perforated steel bar 5 is fixed at the center of the circular hole 4.
In addition, it should be noted that the difference between the diameter of the opening and the diameter of the bar in the hole is an absolute value, which directly affects the size of the radial strut. Thus, the length of the support rod 9 should be greater than the distance from the edge of the perforated steel bar 5 to the edge of the wall of the through hole 4.
After the implementation process is completed, the following characteristics of the invention can be embodied:
the invention can ensure the shearing resistance of the steel-concrete connecting piece, is convenient to install on site, is less influenced by construction errors, and can be widely applied to steel and concrete combined structure engineering.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (4)
1. The utility model provides a mounting and fixing structure of steel-concrete connecting piece and perforation reinforcing bar which characterized in that: the steel-concrete composite plate comprises a base plate, steel-concrete connectors, perforated steel bars and a concrete layer, wherein the steel-concrete connectors which play a role in shearing resistance are arranged on the base plate at intervals, each steel-concrete connector is provided with a through hole, the through holes on the adjacent steel-concrete connectors are communicated, the perforated steel bars sequentially penetrate through the steel-concrete connectors through the through holes, the inner wall of each through hole is provided with a positioning and supporting device for supporting the perforated steel bars, the whole perforated steel bar penetrates through the center of each through hole through the positioning and supporting device, and the concrete layer is poured on the whole base plate and covers all the steel-concrete connectors and the perforated steel bars;
the positioning and supporting device comprises an upper supporting surface and a lower supporting surface, the lower supporting surface is sunken towards the upper supporting surface to form a clamping groove, the positioning and supporting device is inserted in the lower edge of the inner wall of the through hole through the clamping groove, and the perforated steel bar is supported on the upper supporting surface and is positioned in the center of the through hole;
the lower supporting surface is provided with an anti-falling underframe, and the anti-falling underframe radially extends out of two ends of the hole wall of the through hole and is clamped on two side surfaces of the reinforced concrete connecting piece;
the positioning and supporting device is of a trapezoid-like or fan-shaped framework structure and further comprises an upper arc-shaped supporting rod, a lower arc-shaped supporting rod, radial supporting rods, axial supporting rods and a hole wall supporting rod, the upper arc-shaped supporting rod is positioned at the outer edge of the upper supporting surface, the lower arc-shaped supporting rod is positioned at the outer edge of the lower supporting surface, the radial supporting rods are fixedly connected between the upper arc-shaped supporting rod and the lower arc-shaped supporting rod, the axial supporting rods are fixedly connected between two adjacent upper arc-shaped supporting rods positioned on the upper supporting surface, the hole wall supporting rod is fixedly connected between two adjacent radial supporting rods on the same radial cross section, the lengths of the axial supporting rods and the hole wall supporting rods are larger than the thickness of the hole wall of the through hole, a spacing space is reserved between the fixed position of the hole wall supporting rod and the lower, the lower arc-shaped supporting rod radially extending out of the through hole serves as the anti-falling underframe, the hole wall supporting rod is supported on the lower section of the through hole on the hole wall, and the lower arc-shaped supporting rod is clamped on two side faces of the reinforced concrete connecting piece outside the through hole.
2. The installation and fixation structure of the steel-concrete connection piece and the perforated steel bar according to claim 1, characterized in that: the axial bracing piece with pore wall bracing piece is parallel to each other and parallel interval adds the radius of perforation reinforcing bar equals the hole radius of through-hole, go up the arc bracing piece and the expansion radian of arc bracing piece is greater than 90 and is less than 180 down.
3. A construction fixing method of a steel-concrete connecting piece and a perforated steel bar is characterized by comprising the following steps:
providing a base plate, a steel-concrete connecting piece, a perforated steel bar and a concrete layer;
arranging a plurality of steel-concrete connecting pieces which play a role of shearing resistance on the base plate at intervals, and arranging through holes on each steel-concrete connecting piece, wherein the through holes on the adjacent steel-concrete connecting pieces need to be communicated;
a positioning and supporting device is arranged on the inner wall of each through hole to support the perforated steel bar;
sequentially penetrating the perforated steel bars on the reinforced concrete connecting piece through the through holes;
the positioning and supporting device is used for spacing and supporting the perforated reinforcing steel bars one by one so that the whole perforated reinforcing steel bar penetrates through the center of each through hole;
pouring the concrete layer on the whole base plate and covering all the steel-concrete connecting pieces and the perforated steel bars;
the positioning and supporting device is arranged and applied, and the method comprises the following steps:
an upper supporting surface and a lower supporting surface are respectively arranged on the positioning and supporting device;
sinking the lower support surface to the upper support surface to form a clamping groove;
the positioning and supporting device is inserted into the lower edge of the inner wall of the through hole through the clamping groove;
supporting the perforated steel bar on the upper supporting surface and penetrating the perforated steel bar in the center of the through hole;
the positioning and supporting device is arranged and applied, and the method further comprises the following steps:
arranging an anti-falling underframe on the lower supporting surface, and radially extending the anti-falling underframe out of two ends of the hole wall of the through hole so as to clamp the anti-falling underframe on two side surfaces of the reinforced concrete connecting piece;
the specific setting and application of the positioning and supporting device in construction comprises the following steps:
a trapezoid-like or fan-shaped framework structure is adopted as the positioning and supporting device, and the positioning and supporting device specifically comprises an upper arc-shaped supporting rod, a lower arc-shaped supporting rod, a radial supporting rod, an axial supporting rod and a hole wall supporting rod;
the upper arc-shaped supporting rod is arranged at the outer edge of the upper supporting surface, the lower arc-shaped supporting rod is arranged at the outer edge of the lower supporting surface, the radial supporting rods are fixedly connected between the upper arc-shaped supporting rod and the lower arc-shaped supporting rod, the axial supporting rod is fixedly connected between two adjacent upper arc-shaped supporting rods arranged on the upper supporting surface, the hole wall supporting rod is fixedly connected between two adjacent radial supporting rods on the same radial cross section, the lengths of the axial supporting rod and the hole wall supporting rod are set to be larger than the thickness of the hole wall of the through hole, a spacing space is formed between the fixed position of the hole wall supporting rod and the lower supporting surface, the clamping groove is formed by enclosing the hole wall supporting rod and the lower arc-shaped supporting rod, and the lower arc-shaped supporting rod radially extending out of the through hole is, and supporting the hole wall supporting rods on the lower section of the hole wall of the through hole, and clamping the lower arc-shaped supporting rods on two side surfaces of the steel-concrete connecting piece outside the through hole.
4. The method for fixing the construction of the steel-concrete connecting piece and the perforated steel bar according to claim 3, wherein the method further comprises the following steps when the axial support rod and the hole wall support rod are applied:
will axial bracing piece with the pore wall bracing piece is parallel to each other and guarantees that the interval that both are parallel adds the radius of perforation reinforcing bar equals the hole radius of through-hole, will go up the arc bracing piece and the expansion radian of arc bracing piece is set for and is greater than 90 and less than 180 down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050457.1A CN108331177B (en) | 2018-01-18 | 2018-01-18 | Mounting and fixing structure and construction and fixing method for reinforced concrete connecting piece and perforated steel bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810050457.1A CN108331177B (en) | 2018-01-18 | 2018-01-18 | Mounting and fixing structure and construction and fixing method for reinforced concrete connecting piece and perforated steel bar |
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| CN108331177A CN108331177A (en) | 2018-07-27 |
| CN108331177B true CN108331177B (en) | 2020-06-19 |
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| CN110067312A (en) * | 2019-05-30 | 2019-07-30 | 清华大学 | Perforated panel shear connector and its processing method |
| CN114370057A (en) * | 2020-10-14 | 2022-04-19 | 上海承雨新材料科技有限公司 | Metal concrete foundation without form removal |
| CN114991318B (en) * | 2022-06-13 | 2024-06-18 | 中国化学工程第十一建设有限公司 | Connecting device, steel concrete structure and steel concrete structure installation method |
| CN115045442B (en) * | 2022-06-17 | 2023-04-07 | 东南大学 | Positioning device for perforated steel plate shear key perforated steel bars and implementation method thereof |
| CN115182507A (en) * | 2022-07-25 | 2022-10-14 | 国网浙江省电力有限公司嘉兴供电公司 | PBL connecting piece penetrating steel bar coupling positioning device suitable for prefabricated substation structure and implementation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843264U (en) * | 2010-10-29 | 2011-05-25 | 安徽鲁班建设投资集团有限公司 | Positioning ring for reinforced concrete protective layer |
| CN202324363U (en) * | 2011-10-08 | 2012-07-11 | 青岛理工大学 | Protective layer thickness positioner with clamping device |
| CN104100048B (en) * | 2013-04-07 | 2016-04-20 | 同济大学 | Bar reinforcement positioning device in the hole of plate hole connector |
| CN203361345U (en) * | 2013-07-08 | 2013-12-25 | 同济大学 | Rubber ring perforated plate recombination connecting piece |
| CN204081272U (en) * | 2013-12-18 | 2015-01-07 | 陕西铁路工程职业技术学院 | A kind of plane steel fixer |
| CN204876342U (en) * | 2015-06-24 | 2015-12-16 | 同济大学 | Perforated panel steel reinforced concrete combines connecting piece |
| CN206531711U (en) * | 2017-03-14 | 2017-09-29 | 山东科技大学 | A kind of steel reinforced concrete tests bar reinforcement positioning device |
-
2018
- 2018-01-18 CN CN201810050457.1A patent/CN108331177B/en active Active
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