CN114737670B - Bracket and steel reinforced concrete column assembled type connecting node and mounting and dismounting method - Google Patents
Bracket and steel reinforced concrete column assembled type connecting node and mounting and dismounting method Download PDFInfo
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- CN114737670B CN114737670B CN202210547811.8A CN202210547811A CN114737670B CN 114737670 B CN114737670 B CN 114737670B CN 202210547811 A CN202210547811 A CN 202210547811A CN 114737670 B CN114737670 B CN 114737670B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 189
- 239000010959 steel Substances 0.000 title claims abstract description 189
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010008 shearing Methods 0.000 claims abstract description 108
- 238000003466 welding Methods 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 7
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 241000357293 Leptobrama muelleri Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000949477 Toona ciliata Species 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
-
- 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
- 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
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- 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
- E04G23/08—Wrecking of buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The bracket and steel reinforced concrete column assembled connecting node and the installing and dismantling method, wherein the embedded straight ribs 2 penetrate through the embedded steel plate 6 and are distributed on two sides of the steel reinforced concrete column 1; the overhanging shearing plates 3 are welded on flange plates at two sides of the steel column 1; the end part of the overhanging shearing plate 3 penetrates through the embedded steel plate 6 and is welded on the outer side of the embedded steel plate 6; the non-overhanging shearing plate 4 is welded on a flange plate in the middle of the section steel column 1; the end part of the non-overhanging shearing plate 4 does not penetrate through the embedded steel plate 6 and is welded on the inner side of the embedded steel plate 6; the high-strength bolts 5 are welded on the outer side of the embedded steel plate 6; the embedded steel plate 6 is connected with the bracket steel backboard 7 through the high-strength bolt 5; a plurality of brackets 8 are arranged on the outer side of the bracket steel backboard 7. According to the invention, the shearing plate is used for replacing part of the embedded bars, so that the reinforcement can be simplified, the holes of the embedded plates are reduced, the shear strength is improved, the binding of the bars is facilitated, and the construction progress is accelerated. In addition, the bracket can be dismantled, so that the bracket can be reused conveniently.
Description
Technical Field
The invention belongs to the field of building construction, and particularly provides a bracket and steel reinforced concrete column assembly type connecting node and an installation and dismantling method.
Background
When the Beehive beams Ping Taishi are adopted in the construction of the corridor, corbels are additionally arranged on the existing steel reinforced concrete columns to bear the load transferred by the Beehive beams.
The traditional method for adding the concrete bracket is to add bracket connecting ribs on the original reinforcing bars of the concrete column and then pour the concrete, and as the concrete bracket connecting ribs penetrate into the column, the column reinforcing bars which are dense are denser, and the reinforcing bar installation and binding difficulty is increased.
Disclosure of Invention
The invention aims to provide a bracket and steel reinforced concrete column assembled connecting node and an installing and dismantling method, which solve the problems in the technical background
The technical scheme adopted for solving the technical problems is as follows:
the bracket and steel reinforced concrete column assembled connecting node comprises a steel column 1, an embedded straight rib 2, an overhanging shearing plate 3, a non-overhanging shearing plate 4, a high-strength bolt 5, an embedded steel plate 6, a bracket steel backboard 7 and a bracket 8, wherein the shearing force of the bracket and steel reinforced concrete column connecting point is resisted together through the mutual matching of the overhanging shearing plate 3, the non-overhanging shearing plate 4 and the high-strength bolt 5; wherein:
the embedded straight ribs 2 penetrate through the embedded steel plates 6 and are distributed on two sides of the steel column 1; the end part of the embedded straight rib 2 is welded on the outer side of the embedded steel plate 6;
the overhanging shearing plates 3 are welded on flange plates at two sides of the steel column 1; the end part of the overhanging shearing plate 3 penetrates through the embedded steel plate 6 and is welded on the outer side of the embedded steel plate 6;
the non-overhanging shearing plate 4 is welded on a flange plate in the middle of the section steel column 1; the end part of the non-overhanging shearing plate 4 does not penetrate through the embedded steel plate 6 and is welded on the inner side of the embedded steel plate 6;
the high-strength bolts 5 are welded on the outer side of the embedded steel plate 6; the high-strength bolts 5 are arranged in a plurality;
the bracket steel backboard 7 is sleeved on the outer side of the embedded steel plate 6; the embedded steel plate 6 is connected with the bracket steel backboard 7 through the high-strength bolt 5;
a plurality of brackets 8 are arranged on the outer side of the bracket steel backboard 7.
A mounting and dismounting method for bracket and steel reinforced concrete column assembly type connection nodes comprises the following steps:
step 1: preparing an overhanging shearing plate 3 of Q335B, E5016 welding rods, a 10.9-grade M24 high-strength bolt 5, a pre-buried steel plate 6 of Q235B and a steel corbel 8 of Q335B;
step 2: rectangular non-overhanging shearing plate holes (6-1), rectangular overhanging shearing plate holes (6-2), embedded straight rib holes (6-3) and high-strength bolt holes are formed in the embedded steel plate 6 according to positions shown in the drawing, the middle upper and lower rectangular non-overhanging shearing plate holes do not penetrate, the holes of the rest overhanging shearing plates penetrate, and all holes are formed in the embedded steel plate to penetrate;
step 3: and bending one end, far away from the embedded plate, of the embedded straight rib 2 downwards by 90 degrees, and connecting an embedded steel plate (h=25mm) with an HRB400 embedded straight rib with d=25mm by adopting an E5016 welding rod full-mouth plug welding.
Step 4, welding an overhanging shearing plate 3 (t=30 mm, h=75 mm, l=200 mm/585 mm) on the flange of the steel column 1 to ensure the transmission of force, wherein the overhanging shearing plate 3 and the steel column adopt four-side girth welding, and the welding seam is high in h f ＝10mm；
Step 5: the overhanging shearing plate 3 passes through the shearing plate holes of the embedded steel plate 6, four-side girth welding is adopted between the overhanging shearing plate 3 and the embedded steel plate 6, and the welding seam height h f ＝10mm；
Step 6: a 10.9-level M24 high-strength bolt 5 passes through a bolt hole of an embedded steel plate 6 and is temporarily fixed and embedded in a section steel column 1;
step 7: assembled welding bracket 8, bracket vertical supporting plate (web) thickness t w Thickness t of upper and lower cover plates (flanges) =30mm f ＝25mm；
Step 8: the bracket steel backboard 7 is sleeved on the welded whole of the embedded board, the high-strength bolt and the shearing board, and the high-strength bolt is screwed;
step 9: e5016 welding rods are adopted between the bracket steel backboard 7 and the embedded steel plate 6, 45-degree V-shaped grooves are welded, and the roots of the welded plates are reserved for 10mm.
Step 10: and during dismantling, cutting off the welding flux, the high-strength bolts and the shearing plate between the embedded steel plate and the steel backboard, and dismantling the assembled bracket.
The invention also has the following additional technical characteristics:
the technical scheme of the invention is further specifically optimized:
the embedded steel plate 6 comprises rectangular non-overhanging shearing plate holes 6-1 positioned on the upper side and the lower side of the middle, and the rectangular non-overhanging shearing plate holes 6-1 do not penetrate through the embedded steel plate 6;
the embedded steel plate 6 comprises rectangular overhanging shearing plate holes 6-2 positioned on the left side and the right side of the middle, and the rectangular overhanging shearing plate holes 6-2 penetrate through the embedded steel plate 6;
the embedded steel plate 6 comprises an embedded straight rib cavity 6-3 positioned at the peripheral edge, and the embedded straight rib cavity 6-3 penetrates through the embedded steel plate 6.
The technical scheme of the invention is further specifically optimized: the rectangular non-overhanging shear plate holes 6-1 and the rectangular overhanging shear plate holes 6-2 are the same in size; the overhanging shearing plate 3 and the non-overhanging shearing plate 4 have the same size; the size of the hole is larger than that of the shearing plate;
the technical scheme of the invention is further specifically optimized: the embedded straight ribs 2 are only distributed on two sides of the steel column 1, and the tail ends of the embedded straight ribs 2 are bent at 90 degrees; the embedded straight bar 2 passes through the embedded steel plate 6 and is arranged in the embedded straight bar hollow 6-3 in advance, and is connected with the embedded steel plate 6 by full-mouth plug welding.
The technical scheme of the invention is further specifically optimized: the height of the overhanging shearing plate 3 and the height of the non-overhanging shearing plate 4 are larger than the width, and the two ends of the overhanging shearing plate 3 and the non-overhanging shearing plate 4 are respectively connected with the embedded steel plate 6 and the steel column 1 by adopting girth welding, so that the transmission of force is ensured.
The technical scheme of the invention is further specifically optimized: the bracket steel backboard 7 is provided with holes in advance according to the drawing position, and is sleeved on the integral piece of the embedded board 6, the high-strength bolt 5 and the overhanging shearing board 3, and holes on the bracket steel backboard 7 correspond to the integral piece one by one.
Compared with the prior art, the invention has the advantages that:
advantage 1: from the construction point of view, the overhanging shearing plate and the non-overhanging shearing plate are matched to replace a plurality of straight anchor reinforcing bars. The reinforcement can be simplified, the holes of the embedded plates are reduced, and the reinforcement binding is convenient.
Advantage 2: according to stress analysis, the shearing plate is matched with the high-strength bolt, so that the shearing force at the joint of the assembled bracket and the steel reinforced concrete column can be effectively resisted.
Advantage 3: from the economic benefit analysis, after the Bailey beam platform is dismantled, the welding flux, the high-strength bolts and the shearing plates between the embedded steel plate and the steel back plate can be cut off, and the assembled bracket is dismantled for recycling.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the invention, and that 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 of pre-buried members on a steel reinforced concrete column of the present invention;
FIG. 2 is a schematic diagram of the opening of a steel backing plate of a bracket according to the present invention;
FIG. 3 is a schematic top view of a node of the present invention;
FIG. 4 is a schematic diagram of a front view of a node of the present invention;
FIG. 5 is a schematic diagram of the front view structure of the pre-buried steel plate;
fig. 6 is a schematic cross-sectional view of a node of the present invention.
In the figure: 1. a section steel column; 2. pre-burying straight ribs; 3. an overhanging shear plate; 4. a non-overhanging shear plate; 5. a high-strength bolt; 6. embedding a steel plate; 7. bracket steel backboard; 8. and (5) bracket.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order to provide a more thorough understanding of the present disclosure, and to fully convey the scope of the disclosure to those skilled in the art. While the drawings illustrate exemplary embodiments of the present disclosure, it should be understood that the invention is not limited to the embodiments set forth herein.
The bracket and steel reinforced concrete column assembled connecting node comprises a steel column 1, an embedded straight rib 2, an overhanging shearing plate 3, a non-overhanging shearing plate 4, a high-strength bolt 5, an embedded steel plate 6, a bracket steel back plate 7 and a bracket 8, wherein the shearing force of the bracket and steel reinforced concrete column connecting point is resisted jointly through the mutual matching of the overhanging shearing plate 3, the non-overhanging shearing plate 4 and the high-strength bolt 5.
The embedded straight ribs 2 penetrate through the embedded steel plates 6 and are distributed on two sides of the steel column 1; the end part of the embedded straight rib 2 is welded on the outer side of the embedded steel plate 6.
The embedded straight ribs 2 are only distributed on two sides of the steel column 1, and the tail ends of the embedded straight ribs 2 are bent at 90 degrees; the embedded straight bar 2 passes through the embedded steel plate 6 and is arranged in the embedded straight bar hollow 6-3 in advance, and is connected with the embedded steel plate 6 by full-mouth plug welding.
The overhanging shearing plates 3 are welded on flange plates at two sides of the steel column 1; the end of the overhanging shearing plate 3 penetrates through the embedded steel plate 6 and is welded on the outer side of the embedded steel plate 6.
The non-overhanging shearing plate 4 is welded on a flange plate in the middle of the section steel column 1; the end of the non-overhanging shearing plate 4 does not penetrate through the embedded steel plate 6 and is welded to the inner side of the embedded steel plate 6.
The height of the overhanging shearing plate 3 and the height of the non-overhanging shearing plate 4 are larger than the width, and the two ends of the overhanging shearing plate 3 and the non-overhanging shearing plate 4 are respectively connected with the embedded steel plate 6 and the steel column 1 by adopting girth welding, so that the transmission of force is ensured.
The high-strength bolts 5 are welded on the outer side of the embedded steel plate 6; the high-strength bolts 5 are provided in a plurality.
The bracket steel backboard 7 is sleeved on the outer side of the embedded steel plate 6; and the embedded steel plate 6 is connected with the bracket steel backboard 7 through the high-strength bolt 5. A plurality of brackets 8 are arranged on the outer side of the bracket steel backboard 7. The bracket steel backboard 7 is provided with holes in advance according to the drawing position, and is sleeved on the integral piece of the embedded board 6, the high-strength bolt 5 and the overhanging shearing board 3, and holes on the bracket steel backboard 7 correspond to the integral piece one by one.
The embedded steel plate 6 comprises rectangular non-overhanging shearing plate holes 6-1 positioned on the upper side and the lower side of the middle, and the rectangular non-overhanging shearing plate holes 6-1 do not penetrate through the embedded steel plate 6;
the embedded steel plate 6 comprises rectangular overhanging shearing plate holes 6-2 positioned on the left side and the right side of the middle, and the rectangular overhanging shearing plate holes 6-2 penetrate through the embedded steel plate 6;
the embedded steel plate 6 comprises an embedded straight rib cavity 6-3 positioned at the peripheral edge, and the embedded straight rib cavity 6-3 penetrates through the embedded steel plate 6.
The rectangular non-overhanging shear plate holes 6-1 and the rectangular overhanging shear plate holes 6-2 are the same in size; the overhanging shearing plate 3 and the non-overhanging shearing plate 4 have the same size; the size of the holes is larger than that of the shearing plate.
A mounting and dismounting method for bracket and steel reinforced concrete column assembly type connection nodes comprises the following steps:
step 1: an overhanging shear plate 3 of Q335B, an E5016 electrode, a 10.9 grade M24 high strength bolt 5, a pre-buried steel plate 6 of Q235B, and a steel corbel 8 of Q335B were prepared.
Step 2: rectangular non-overhanging shearing plate holes (6-1), rectangular overhanging shearing plate holes (6-2), embedded straight rib holes (6-3) and high-strength bolt holes are formed in the embedded steel plate 6 according to positions shown in the drawing, the upper and lower rectangular non-overhanging shearing plate holes in the middle do not penetrate, the holes of the rest overhanging shearing plates penetrate, and all the holes are formed in the embedded steel plate.
Step 3: and bending one end, far away from the embedded plate, of the embedded straight rib 2 downwards by 90 degrees, and connecting an embedded steel plate (h=25mm) with an HRB400 embedded straight rib with d=25mm by adopting an E5016 welding rod full-mouth plug welding.
Step 4. Welding overhanging shear plates 3 (t=30 mm, h=75 mm, l=200 mm/585 mm) toOn the flange of the steel column 1, the transmission of force is ensured, wherein the overhanging shearing plate 3 and the steel column adopt four-side girth welding, and the welding line is high h f ＝10mm。
Step 5: the overhanging shearing plate 3 passes through the shearing plate holes of the embedded steel plate 6, four-side girth welding is adopted between the overhanging shearing plate 3 and the embedded steel plate 6, and the welding seam height h f ＝10mm。
Step 6: and (3) enabling the 10.9-level M24 high-strength bolt 5 to pass through a bolt hole of the embedded steel plate 6, temporarily fixing, and embedding in the steel column 1.
Step 7: assembled welding bracket 8, bracket vertical supporting plate (web) thickness t w Thickness t of upper and lower cover plates (flanges) =30mm f ＝25mm。
Step 8: the bracket steel backboard 7 is sleeved on the welded whole of the embedded board, the high-strength bolt and the shearing board, and the high-strength bolt is screwed.
Step 9: e5016 welding rods are adopted between the bracket steel backboard 7 and the embedded steel plate 6, 45-degree V-shaped grooves are welded, and the roots of the welded plates are reserved for 10mm.
Step 10: and during dismantling, cutting off the welding flux, the high-strength bolts and the shearing plate between the embedded steel plate and the steel backboard, and dismantling the assembled bracket.
The method for calculating the load Q of the bracket and steel reinforced concrete column assembled connecting node comprises the following steps:
anchor bar anchoring length with end anchor plate (plug welding):
ζ in formula (1) a Representing the correction coefficient of the anchoring length of the tension steel bar; alpha represents the external coefficient of the anchoring steel bar, the smooth steel bar is 0.16, and the ribbed steel bar is 0.14; f (f) y Representing the tensile strength of the steel bar; f (f) t The axial tensile strength of the concrete is shown; d represents the diameter of the rebar.
Maximum tension of single bolt of high-strength bolt:
in the formula (2), M represents a bending moment applied to a cross section; y is 1 Representing the maximum vertical distance of the laid bolts from the center of the cross section; y is i Representing the vertical distance of each bolt from the center of the cross section;the design value of the tensile bearing capacity of a single bolt is shown.
Single shear bearing calculation:
[Nv]＝ahl/1000 (3)
in the formula (3), a represents the width of the shearing member; h represents the height of the shear member; l indicates the length of the shear member.
To determine the number of high strength bolts and shear members.
The invention is not a matter of the known technology.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention are clearly and completely described above in conjunction with the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Accordingly, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Claims (7)
1. The bracket and steel reinforced concrete column assembled connecting node is characterized by comprising a steel column (1), pre-buried straight ribs (2), an overhanging shearing plate (3), a non-overhanging shearing plate (4), high-strength bolts (5), pre-buried steel plates (6), a bracket steel backboard (7) and brackets (8), wherein shearing force of the bracket and the steel reinforced concrete column connecting point is resisted together through mutual matching of the overhanging shearing plate (3), the non-overhanging shearing plate (4) and the high-strength bolts (5); wherein:
the embedded straight ribs (2) penetrate through the embedded steel plate (6) and are distributed on two sides of the steel column (1); the end part of the embedded straight rib (2) is welded on the outer side of the embedded steel plate (6);
the overhanging shearing plates (3) are welded on flange plates at two sides of the section steel column (1); the end part of the overhanging shearing plate (3) penetrates through the embedded steel plate (6) and is welded on the outer side of the embedded steel plate (6);
the non-overhanging shearing plate (4) is welded on a flange plate in the middle of the section steel column (1); the end part of the non-overhanging shearing plate (4) does not penetrate through the embedded steel plate (6) and is welded on the inner side of the embedded steel plate (6);
the high-strength bolts (5) are welded on the outer side of the embedded steel plate (6); the high-strength bolts (5) are arranged in a plurality of mode;
the bracket steel backboard (7) is sleeved on the outer side of the embedded steel plate (6); the embedded steel plate (6) is connected with the bracket steel backboard (7) through the high-strength bolt (5);
the outer side of the bracket steel backboard (7) is provided with a plurality of brackets (8).
2. The bracket and steel reinforced concrete column assembly type connecting node according to claim 1, wherein,
the embedded steel plate (6) comprises rectangular non-overhanging shearing plate holes (6-1) positioned on the upper side and the lower side of the middle, and the rectangular non-overhanging shearing plate holes (6-1) do not penetrate through the embedded steel plate (6);
the embedded steel plate (6) comprises rectangular overhanging shearing plate holes (6-2) positioned on the left side and the right side of the middle, and the rectangular overhanging shearing plate holes (6-2) penetrate through the embedded steel plate (6);
the embedded steel plate (6) comprises an embedded straight rib cavity (6-3) positioned at the peripheral edge, and the embedded straight rib cavity (6-3) penetrates through the embedded steel plate (6).
3. Bracket and steel reinforced concrete column assembled connection node according to claim 2, characterized in that the rectangular non-overhanging shear plate holes (6-1) and the rectangular overhanging shear plate holes (6-2) are of the same size; the sizes of the overhanging shearing plate (3) and the non-overhanging shearing plate (4) are the same; the size of the holes is larger than that of the shearing plate.
4. The bracket and steel reinforced concrete column assembly type connecting node according to claim 1, wherein the embedded straight ribs (2) are only distributed on two sides of the steel reinforced column (1), and the tail ends of the embedded straight ribs (2) are bent at 90 degrees; the embedded straight bar (2) penetrates through the embedded steel plate (6) to be well opened in advance in the embedded straight bar cavity (6-3), and is connected with the embedded steel plate (6) by full-mouth plug welding.
5. Bracket and steel reinforced concrete column assembled connection node according to claim 1, characterized in that the height of the overhanging shearing plate (3) and the non-overhanging shearing plate (4) is larger than the width, and the two ends of the overhanging shearing plate (3) and the non-overhanging shearing plate (4) are respectively connected with the embedded steel plate (6) and the steel reinforced column (1) by girth welding, so as to ensure the transmission of force.
6. The bracket and steel reinforced concrete column assembly type connecting node according to claim 1, wherein the bracket steel backboard (7) is provided with holes in advance according to the drawing position and sleeved on the integral piece of the embedded steel plate (6), the high-strength bolt (5) and the overhanging shearing plate (3), and holes on the bracket steel backboard (7) are in one-to-one correspondence with the integral piece.
7. The mounting and dismounting method of the bracket and steel reinforced concrete column assembly type connecting node is characterized by comprising the following steps of:
step 1: preparing an overhanging shearing plate (3) of Q335B, an E5016 welding rod, a 10.9-grade M24 high-strength bolt (5), a pre-buried steel plate (6) of Q235B and a steel corbel (8) of Q335B;
step 2: rectangular non-overhanging shearing plate holes (6-1), rectangular overhanging shearing plate holes (6-2), embedded straight rib holes (6-3) and high-strength bolt holes are formed in the embedded steel plate (6) according to the positions shown in the drawing, the middle upper and lower rectangular non-overhanging shearing plate holes do not penetrate, the holes of the rest overhanging shearing plates penetrate, and all the holes formed in the embedded steel plate (6) penetrate;
step 3: bending one end of the embedded straight rib (2) far away from the embedded steel plate (6) downwards by 90 degrees, wherein the embedded steel plate (6) is connected with the embedded straight rib (2) of the HRB400 by adopting E5016 welding rod full-mouth plug welding;
step 4, welding the overhanging shearing plate (3) on the flange of the section steel column (1) to ensure the transmission of force, wherein the overhanging shearing plate (3) and the section steel column adopt four-side girth welding;
step 5: penetrating the overhanging shearing plate (3) through a shearing plate hole of the embedded steel plate (6), and performing four-side girth welding between the overhanging shearing plate (3) and the embedded steel plate (6);
step 6: a 10.9-grade M24 high-strength bolt (5) passes through a bolt hole of an embedded steel plate (6) and is temporarily fixed, and is embedded in a section steel column (1);
step 7: assembling and welding brackets (8);
step 8: the bracket steel backboard (7) is sleeved on the welded whole of the embedded steel plate (6), the high-strength bolt and the overhanging shearing plate (3), and the high-strength bolt is screwed;
step 9: e5016 welding rods and 45-degree V-shaped grooves are adopted between the bracket steel backboard (7) and the embedded steel plate (6);
step 10: and during dismantling, cutting off the welding flux, the high-strength bolts and the shearing plate between the embedded steel plate and the steel backboard, and dismantling the assembled bracket.
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| CN114737670A (en) | 2022-07-12 |
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