CN218540987U - Beam-slab-column assembly type cross joint connected by steel wedges - Google Patents
Beam-slab-column assembly type cross joint connected by steel wedges Download PDFInfo
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- CN218540987U CN218540987U CN202222720004.XU CN202222720004U CN218540987U CN 218540987 U CN218540987 U CN 218540987U CN 202222720004 U CN202222720004 U CN 202222720004U CN 218540987 U CN218540987 U CN 218540987U
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Abstract
The utility model discloses an adopt beam slab post assembled cross node that steel wedge connected, include: a cylinder unit; four beam plates matched with the column units; all be provided with first opening on every beam slab, inwards extend to open on two inner walls of first open-ended and respectively be equipped with a first cell body, four beam slab parallel arrangement concatenations form the second opening, the second opening part is arranged in to the cylinder unit, it has a plurality of prefabricated component group to prefabricate in the cylinder unit, every prefabricated component group includes a pair of prefabricated component, first cell body is used for placing the prefabricated component, the cylinder unit, the through-hole has all been seted up on the beam slab, the steel wedge passes the through-hole and fixes beam slab and the prefabricated component group in the cylinder unit, the opening direction of through-hole is perpendicular with the opening direction of first cell body, two first cell body set up perpendicularly. The utility model discloses the structure atress is reasonable, and it is clear and definite to pass the power way, and the construction is extremely simple and convenient, can industrialization batch production to have and to dismantle characteristics, can recycle, economic benefits and environmental benefit are high.
Description
Technical Field
The utility model belongs to the technical field of the assembly type structure, especially, relate to an adopt beam slab post assembled cross node that steel wedge connects.
Background
The traditional cast-in-place structure is taken as a mainstream structure form, has the defects of long construction period, low industrialization degree, serious environmental pollution and the like, and does not accord with the national policy of energy conservation and emission reduction, and the prefabricated assembly type building is widely accepted at home and abroad in recent years due to the characteristics of convenient construction, high construction speed and good environmental benefit, and gradually replaces the traditional cast-in-place structure. The beam column joint is used as a main stress part to be a research focus, the existing assembly type beam column joint connection is divided into a wet connection mode and a dry connection mode, the wet connection mode is the prefabrication of partial components, concrete cast-in-place connection is used on site, and although the integrity is better, the defects that construction is difficult and concrete is difficult to vibrate densely exist. At present, dry type connection is characterized in that all components are prefabricated in a factory and connected in a mode of bolts, prestressed steel strands, groove keys, welding and the like on site, but the dry type connection has the problems of high precision requirement on prefabricated components and poor ductility.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt beam slab post assembled cross node that steel wedge connected for beam column assembled node prefab required precision is high among the solution prior art, the relatively poor problem of ductility.
In order to realize the above purpose, the utility model provides an adopt beam slab post assembled cross node that steel wedge connected, include: a cylinder unit; four beam plates matched with the column units;
each beam plate is provided with a first opening, two inner walls of each first opening are inwards extended and provided with a first groove respectively, four beam plates are arranged in parallel and spliced to form a second opening, the column unit is arranged at the second opening, a plurality of prefabricated part sets are prefabricated in the column unit, each prefabricated part set comprises a pair of prefabricated parts, the first grooves are used for placing the prefabricated parts, the column unit and the beam plates are provided with through holes, and a steel wedge penetrates through the through holes to fix the beam plates and the prefabricated part sets on the column unit;
the opening direction of the through hole is perpendicular to the opening direction of the first groove bodies, and the two first groove bodies are arranged perpendicularly.
Optionally, the cylinder unit includes an upper cylinder and a lower cylinder, and the upper cylinder is in contact connection with the lower cylinder.
Optionally, the prefabricated part group includes an upper prefabricated part and a lower prefabricated part, the upper prefabricated part is embedded in the upper column, and the lower prefabricated part is embedded in the lower column.
Optionally, at least one fixing piece is embedded in the beam plate, and the fixing piece is parallel to the first groove body.
Optionally, the fixing piece is pre-embedded in the inner side of each first groove body, and the thickness of each first groove body is half of the thickness of the prefabricated member.
Optionally, the fixing member is parallel to the first groove body.
Optionally, the upper prefabricated member includes four first support plates arranged perpendicular to each other, and each of the first support plates is provided with a through hole; the lower prefabricated member comprises four second support plates and first flange plates which are vertically arranged, each second support plate is provided with a through hole, and the first flange plates and the second support plates are vertically arranged.
Optionally, the fixing piece is provided with a through hole matched with the cylinder unit in size and shape.
Optionally, the through hole of the lower preform forms a notch with a height lower than the height of the notch below the beam plate to form a height difference, and the through hole of the upper preform forms a notch with a height higher than the height of the notch below the beam plate to form a height difference.
The technical effects of the utility model are that: the utility model discloses the structure atress is reasonable, and it is clear and definite to pass the power way, and the construction is extremely simple and convenient, can industrialization batch production to have and to dismantle characteristics, can recycle, economic benefits and environmental benefit are high.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic three-dimensional structure diagram of a beam-slab-column assembled cross joint connected by a steel wedge according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a three-dimensional structure of a beam-slab-column assembled cross joint connected by a steel wedge according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an upper column according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lower column according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a beam plate according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a beam slab according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an upper prefabricated member according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a lower prefabricated member according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a fixing member according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a steel wedge according to an embodiment of the present invention;
fig. 11 is a diagram illustrating a steel wedge connection process according to an embodiment of the present invention;
reference numerals:
1. putting the column on; 2. column descending; 3. a beam plate; 4. steel wedge; 5. an upper prefabricated part; 5.1, a first support plate; 6. a lower prefabricated part; 6.1, a second support plate; 6.2 a flange plate; 7. a fixing member; 8. a first tank body; 9. and a through hole.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The invention will be described with reference to fig. 1-11, which illustrate a beam-slab-column assembled cross joint using steel wedges.
As shown in fig. 1 to 6, the present embodiment provides a beam-slab-column assembled cross node connected by steel wedges, comprising: a cylinder unit; four beam plates 3 matched with the column units;
each beam plate 3 is provided with a first opening, two inner walls of each first opening extend inwards to form a first groove body 8, four beam plates 3 are arranged in parallel and spliced to form a second opening, the column unit is arranged at the second opening, a plurality of prefabricated part sets are prefabricated in the column unit, each prefabricated part set comprises a pair of prefabricated parts, the first groove bodies 8 are used for placing the prefabricated parts, the column unit and the beam plates 3 are provided with through holes 9, and the steel wedges 4 penetrate through the through holes 9 to fix the beam plates 3 and the prefabricated part sets on the column unit;
the opening direction of the through hole 9 is perpendicular to the opening direction of the first groove bodies 8, and the two first groove bodies 8 are perpendicular to each other.
The column unit comprises an upper column 1 and a lower column 2, and the upper column 1 is in contact connection with the lower column 2.
In this embodiment, the upper column 1 and the lower column 2 may be prefabricated from concrete, as shown in fig. 3-4, the bottom of the upper column 1 is provided with a protrusion, the protrusion may be spherical, hemispherical, columnar, tetrahedral, etc., and the top of the lower column 2 is provided with a groove, preferably a spherical or hemispherical groove, matching the shape and size of the protrusion, during installation, the upper column 1 is hoisted into the spherical groove of the lower column 2, and a temporary node is formed by gravity and the radian in the groove. The beam slab 3 is made of precast concrete. The first opening is a rectangular opening formed in the inner side of the beam plate 3 and can be attached to a column wall. Four beam slabs of horizontal direction cooperate laminating column wall each other, only need the contact surface overlap joint between upper prop 1 and the lower prop 2, need not to connect, just can fasten upper prop 1, lower prop 2 and beam slab 3 together, form the cross node, the structure takes shape fast, the construction is simple and convenient, the production precision requirement to prefabricated component is low, can carry out industrialization batch production, better wholeness and security have, and after releasing the steel wedge fastening force, structural component can dismantle, used repeatedly.
The multilayer structure is formed by splicing the upper column 1 and the lower column 2 in the above step.
Further, the upper and lower columns 1 and 2 are long enough to be installed with a plurality of first beam plates 3 to form a multi-storey floor structure.
Further, the projection of the upper column 1 conforms to the following formula:
in the formula: f. of vd Is the shear strength of the concrete; a. The c Is the cross-sectional area of the tip.
In an alternative embodiment, as shown in fig. 7-8, the set of preforms comprises an upper preform 5 and a lower preform 5, the upper preform 5 being partially embedded in an upper column, and the lower preform 5 being partially embedded in the lower column.
In this embodiment, the upper and lower prefabricated members 5 and 6 are previously buried in the column unit and made of steel plates. Wherein, the length of the single-side extension of the lower prefabricated member 6 is at least half of the height of the beam, and the width of the single-side extension does not exceed the width of the beam.
Further, the upper preform 5 and the lower preform 6 comply with the following formula:
f v b g h g ≥N g
in the formula: f. of d Is the design value of the tensile strength of the steel plate; f. of v Is a design value of the shear strength of the steel plate; b g Is the thickness of the steel plate; h is g Is the steel plate height;
M g is a bending moment design value; n is a radical of g Is a shear design value;
wherein:
in the formula: a. The s Is the area of the single-side tensioned steel bar; f. of sd Is the tensile strength design value of the tensile steel bar;
ρ sv is the reinforcement ratio f of the stirrup sv Is the tensile strength design value of the stirrup; l is 1 The horizontal distance from the tension steel bar to the center line of the column; l is a radical of an alcohol 2 Is the horizontal distance from the center of the steel wedge to the center line of the column; b is the pillar width; h is 1 The vertical distance from the wedge center of the steel plate to the upper edge of the steel plate; h is 2 Is the vertical distance from the steel wedge center to the lower edge of the steel plate;
in an alternative embodiment, as shown in fig. 9, at least one fixing member 7 is embedded in the beam plate 3, and the fixing member 7 is arranged in parallel with the first trough body 8. In the present embodiment, the fixing member 7 is made of a steel plate. At least two through holes 9 are formed in the fixing piece 7, and at least four through holes 9 are formed in the beam plate 3.
Further, the fixing piece 7 is pre-embedded in the inner side of each first groove body 8, and the thickness of each first groove body 8 is half of the thickness of the prefabricated part. In this embodiment, the number of the fixing members 7 embedded in each side is one.
Further, the fixing member 7 is arranged in parallel with the first groove 8.
In an alternative embodiment, the upper prefabricated member 5 includes four first support plates 5.1 arranged perpendicularly to each other, and each of the first support plates 5.1 is provided with a through hole 9; the lower prefabricated member 5 comprises four second support plates 6.1 and first flange plates which are vertically arranged, each second support plate 6.1 is provided with a through hole 9, each first flange plate and each second support plate 6.1 are vertically arranged, and each flange plate 6.2 is fixedly arranged on the lower surface of each second support plate 6.1.
Furthermore, the fixing part 7 is provided with a through hole 9 matched with the size and shape of the column unit. As shown in fig. 10, the lower end of the wedge 4 is threaded to allow the nut to be screwed in.
During the installation, beam slab 3 hoists on flange board 6.2, the post wall is hugged closely to the inboard, make the fillet rectangle notch of prefab 5 and 6 through-holes departments of prefab down align with beam slab 3, steel wedge 4 has certain slope, can beat through inwards, play the effect of compressing tightly, with two steel wedges 4 in fillet rectangle notch department to wearing, with last post 1, lower post 2 is through last prefab 5, lower prefab 6 compresses tightly with adjacent beam slab 3, it is unified whole to connect into, steel wedge 4 one end is with screwing up the nut, support each other, prevent that steel wedge 4 from sliding. According to the method, the multi-layer structure can be formed by hoisting and splicing, and the temporary support can be used for fixing during hoisting, so that the structure safety is ensured. When the steel wedge is disassembled, the nut at one end of the steel wedge can be unscrewed, the steel wedge is knocked out, and the structure is sequentially unloaded.
In an alternative embodiment, the through holes of the lower preform 5 form a notch having a height forming difference lower than the height of the lower notch in the beam plate 3, and the through holes of the upper preform 5 form a notch having a height forming difference higher than the height of the lower notch in the beam plate 3.
Specifically, as shown in fig. 11, the height of the rounded rectangular notch formed by the through hole of the lower prefabricated member 6 is slightly lower than the height of the lower notch in the beam slab 3, the height of the rounded rectangular notch of the upper prefabricated member 5 is slightly higher than the height of the upper notch in the beam slab 3, the steel wedge 4 has a top slope, and in the process of driving the steel wedge 4 into the notch, the steel wedge 4 will abut against the upper end of the notch of the lower prefabricated member 6 and abut against the lower end of the lower notch in the beam slab 3, and gradually compress until the lower column 2 and the beam slab 3 are firmly spliced together; the steel wedge 4 can support against the lower end of the notch of the upper prefabricated part 5 and against the upper end of the notch above the beam plate 3, and the steel wedge is gradually compressed until the upper column 1 and the beam plate 3 are firmly spliced together. The method can combine the upper column 1, the lower column 2 and the beam slab 3 to form a firm node under the fastening action of the steel wedges 4. Go up prefab 5, lower prefab 6 and beam slab notch difference in height be x, and the domatic angle of steel wedge is alpha, for guaranteeing that the node has sufficient safe deposit, can adjust notch difference in height and the domatic angle of steel wedge during the design and make the node fasten more.
Furthermore, the first support plate 5.1, the second support plate 6.1 and the flange plate 6.2 are provided with holes for stirrups and reinforcing steel bars.
In this embodiment, a fixing member 7 is embedded in one side of each first groove 8.
In an alternative embodiment, the steel wedge conforms to the following equation:
in the formula: f. of t Is the design value of the tensile strength of the steel wedge; a. The x Is the steel wedge area; n is a radical of hydrogen x Is the shear bearing energy of the steel wedgeForce;
wherein:
N x ＝min{2A x f v ,db g f d }
in the formula: d is the steel wedge height; f. of d Is the design value of the tensile strength of the steel wedge; f. of v Is the designed shear strength value of the steel wedge.
Further, in the assembling method, the cross sections of the precast concrete columns are all rectangular, and the size of the cross section of each precast concrete column is changed according to specific actual requirements without specified requirements; the upper column cross steel plate and the lower column cross T-shaped steel plate are rectangular steel plates, and the section sizes of the upper column cross steel plate and the lower column cross T-shaped steel plate can be selected according to actual conditions and specifications without making specified requirements.
Further, the size of the steel wedge and the size of the round-corner rectangular notch are selected according to actual requirements, and no specified requirements are made.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.
In the description of the present specification, reference to the description of "one embodiment," "first-aspect embodiment," "some embodiments," "example," "specific example," or "some example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides an adopt beam slab post assembled cross node that steel wedge connected which characterized in that includes: a cylinder unit; four beam plates matched with the column units;
each beam plate is provided with a first opening, two inner walls of each first opening are inwards extended and provided with a first groove respectively, four beam plates are arranged in parallel and spliced to form a second opening, the column unit is arranged at the second opening, a plurality of prefabricated part sets are prefabricated in the column unit, each prefabricated part set comprises a pair of prefabricated parts, the first grooves are used for placing the prefabricated parts, the column unit and the beam plates are provided with through holes, and a steel wedge penetrates through the through holes to fix the beam plates and the prefabricated part sets on the column unit;
the opening direction of the through hole is perpendicular to that of the first groove bodies, and the two first groove bodies are perpendicular to each other.
2. The beam-slab-column assembled cross node adopting steel wedge connection according to claim 1, wherein the column body unit comprises an upper column and a lower column, and the upper column is in contact connection with the lower column.
3. The beam-slab-column assembled cross node connected by the steel wedge as claimed in claim 2, wherein the prefabricated member group comprises an upper prefabricated member and a lower prefabricated member, part of the upper prefabricated member is embedded in an upper column, and part of the lower prefabricated member is embedded in a lower column.
4. The beam-slab-column assembled cross joint connected by the steel wedge as claimed in claim 3, wherein at least one fixing member is embedded in the beam slab, and the fixing member is arranged in parallel with the first tank body.
5. The beam-slab-column assembled cross joint connected by the steel wedges as claimed in claim 4, wherein the fixing member is pre-embedded in the inner side of each first groove body, and the thickness of each first groove body is half of that of the prefabricated member.
6. The beam-slab-column assembled cross node connected by the steel wedge as claimed in claim 4, wherein the fixing member is arranged in parallel with the first groove body.
7. The beam-slab-column assembled cross joint connected by the steel wedges as claimed in claim 4, wherein the upper prefabricated member comprises four first support plates arranged perpendicularly to each other, and each first support plate is provided with a through hole; the lower prefabricated part comprises four second support plates and four first flange plates which are vertically arranged, each second support plate is provided with a through hole, and the first flange plates and the second support plates are vertically arranged.
8. The beam-slab-column assembled cross node connected by the steel wedge as claimed in claim 7, wherein the fixing member is provided with a through hole matching with the size and shape of the column unit.
9. The beam-slab-column assembled cross node connected by the steel wedge as claimed in claim 8, wherein the through hole of the lower prefabricated member forms a notch with a height forming difference lower than that of the lower notch in the beam slab, and the through hole of the upper prefabricated member forms a notch with a height forming difference higher than that of the lower notch in the beam slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720004.XU CN218540987U (en) | 2022-10-14 | 2022-10-14 | Beam-slab-column assembly type cross joint connected by steel wedges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720004.XU CN218540987U (en) | 2022-10-14 | 2022-10-14 | Beam-slab-column assembly type cross joint connected by steel wedges |
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| Publication Number | Publication Date |
|---|---|
| CN218540987U true CN218540987U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222720004.XU Active CN218540987U (en) | 2022-10-14 | 2022-10-14 | Beam-slab-column assembly type cross joint connected by steel wedges |
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| Country | Link |
|---|---|
| CN (1) | CN218540987U (en) |
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2022
- 2022-10-14 CN CN202222720004.XU patent/CN218540987U/en active Active
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