CN212271686U - Mounting structure of piece and a supporting beam encorbelments - Google Patents
Mounting structure of piece and a supporting beam encorbelments Download PDFInfo
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- CN212271686U CN212271686U CN202021258352.4U CN202021258352U CN212271686U CN 212271686 U CN212271686 U CN 212271686U CN 202021258352 U CN202021258352 U CN 202021258352U CN 212271686 U CN212271686 U CN 212271686U
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Abstract
The utility model discloses an installation structure of an overhanging piece and a supporting beam, which comprises the supporting beam and the overhanging piece, and also comprises an installation plate and a stress conversion plate, wherein the installation plate is anchored on the side surface of the supporting beam through a rear anchoring bolt; the stress conversion plate is anchored on the top surface of the support beam through a rear anchoring bolt, and the installation plate is fixedly connected with the crossed position of the stress conversion plate; the piece of encorbelmenting is close to supporting beam's one end fixed connection in on the mounting panel. This kind of mounting structure ingenious realization the conversion of anchor bolt stress, under the effect of atress change-over plate, the atress of the anchor bolt on the mounting panel is changed for pure shearing atress by drawing and shearing compound atress, back anchor bolt itself on the atress change-over plate is for shearing the atress simultaneously, this security that has just greatly promoted the mounting structure of piece and a supporting beam of encorbelmenting, this mounting structure has still further reduced the design degree of difficulty and the complexity of the mounting structure of piece and a supporting beam of encorbelmenting simultaneously.
Description
Technical Field
The utility model relates to a civil engineering technical field, in particular to piece and a supporting beam's mounting structure encorbelments.
Background
Since the eighties of the last century, the economy of China has developed rapidly, and the city construction has advanced rapidly. Some buildings formed at first face the problem of reinforcement and reconstruction due to the fact that the buildings are long in age; particularly, in a large-scale commercial complex project, due to the fact that business forms are changed instantly and the business forms are adjusted continuously, a large number of buildings need to be modified, and the post-anchoring anchor bolts are applied in a large amount in the modification process.
The method comprises the following steps that an overhang piece is added, wherein the overhang piece is a modification form commonly encountered in the building modification process, as shown in fig. 1, a steel connecting plate 02 is arranged on the side wall of a supporting beam 01 in a common mode of adding an overhang piece 04 at present, the steel connecting plate 02 is in anchoring connection with the supporting beam 01 through a rear anchoring bolt 03, and the overhang piece 04 is fixedly connected to the steel connecting plate 02; because the gravity of the cantilever 04 applies a rotating moment (such as a rotating arrow in fig. 1) to the steel connecting plate 02 while applying a downward shearing force (such as a straight arrow in fig. 1) to the steel connecting plate 02, the rear anchor bolt 03 in the connection mode is subjected to both the shearing force and the pulling force of the steel connecting plate 02, and belongs to a tension-shear composite stress, and the tension allowable value of the rear anchor bolt 03 is far smaller than the shear allowable value, which results in poor safety of the connection position of the rear anchor bolt 03; meanwhile, the tensile force of the rear anchoring bolt 03 also easily causes multiple damage forms such as the pull damage of a concrete cone of the support beam 01, the concrete fracture damage, the concrete edge shear damage, the concrete shear and pry damage and the like, and the damage forms need to be checked in the actual design process, so that the design difficulty and complexity are also improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an encorbelment piece and a supporting beam's mounting structure to can improve the security of encorbelment piece and a supporting beam's junction node, and reduce the design degree of difficulty and complexity as far as possible.
In order to achieve the above object, the utility model provides a following technical scheme:
an installation structure of an overhanging piece and a supporting beam comprises the supporting beam, the overhanging piece, an installation plate and a stress conversion plate, wherein,
the mounting plate is anchored on the side surface of the supporting beam through a rear anchoring bolt;
the stress conversion plate is anchored on the top surface of the support beam through a rear anchoring bolt, and the installation plate is fixedly connected with the crossed position of the stress conversion plate;
the piece of encorbelmenting is close to supporting beam's one end fixed connection in on the mounting panel.
Preferably, the mounting plate is welded to the position where the force-receiving conversion plate intersects.
Preferably, the top end of the mounting plate is provided with a folded edge which is bent towards a direction away from the supporting beam, and the folded edge is provided with a first bolt hole; and a second bolt hole corresponding to the first bolt hole is formed in one end, close to the mounting plate, of the stress conversion plate, and the mounting plate is fixedly connected with the stress conversion plate through bolts penetrating through the first bolt hole and the second bolt hole.
Preferably, the cantilever and the mounting plate are of an integrated structure.
Preferably, the cantilever is fixedly connected to the mounting plate by bolts.
Preferably, the longitudinal section of the piece of encorbelmenting is right trapezoid, the lower bottom of the piece of encorbelmenting with the mounting panel links to each other, the right-angle side of the piece of encorbelmenting sets up, the hypotenuse of the piece of encorbelmenting sets up down.
Preferably, the top of the support beam is connected with a building floor, the top of the support beam is flush with the top of the building floor, and one part of the stress conversion plate is anchored on the top of the support beam, and the other part of the stress conversion plate is anchored on the top of the building floor.
Compared with the prior art, the stress conversion plate is added in the mounting structure of the cantilever and the supporting beam, the mounting plate is anchored on the side surface of the supporting beam through the rear anchoring bolt, the stress conversion plate is anchored on the top surface of the supporting beam through the rear anchoring bolt, the mounting plate is fixedly connected with the crossed position of the stress conversion plate, the stress conversion plate and the mounting plate form a right-angle piece which is enclosed at the corner position of the top of the supporting beam, and the cantilever is fixedly connected on the mounting plate;
this kind of mounting structure ingenious realization the conversion of anchor bolt stress state, under the effect of atress change-over plate, the atress of the anchor bolt on the mounting panel is changed for pure shearing atress by drawing shearing compound atress, the atress itself of back anchor bolt on the atress change-over plate is also for shearing the atress, because the atress tolerance of cutting of anchor bolt is far greater than anchor bolt's the tolerance that is drawn, therefore greatly promoted overhanging piece and a supporting beam's mounting structure's security, simultaneously because anchor bolt no longer bears the pulling force, can not lead to the fact destruction to supporting beam's concrete itself, therefore also need not to check and calculate concrete cone and draw bad, concrete splitting destroys, destruction forms such as concrete edge is bad and concrete is cut and is damaged, this design degree of difficulty and the complexity that has further reduced overhanging piece and a supporting beam's mounting structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 view of a mounting structure of an overhang and a support beam in the prior art;
fig. 2 is a schematic view of an installation structure of the cantilever and the supporting beam disclosed in the embodiment of the present invention.
The drawings are numbered as follows:
the structure comprises a supporting beam 1, a mounting plate 2, a rear anchoring bolt 3, an overhanging piece 4, a stress conversion plate 5 and a building floor 6.
Detailed Description
The core of the utility model lies in providing a piece of encorbelmenting and a supporting beam's mounting structure to can improve the security of the piece of encorbelmenting and a supporting beam's connected node department, and reduce the design degree of difficulty and complexity as far as possible.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.
As will be understood with reference to fig. 2, the mounting structure of an overhang and a support beam disclosed in the present embodiment includes a support beam 1 and an overhang 4, the support beam 1 is a reinforced concrete beam, and in addition, the mounting structure further includes a mounting plate 2 and a force-receiving conversion plate 5, wherein the mounting plate 2 is anchored on a side surface of the support beam 1 by a rear anchor bolt 3, the force-receiving conversion plate 5 is anchored on a top surface of the support beam 1 by the rear anchor bolt 3, and a position where the mounting plate 2 intersects with the force-receiving conversion plate 5 is fixedly connected, that is, the mounting plate 2 and the force-receiving conversion plate 5 are connected into a whole at a corner position, and one end of the overhang 4 close to the support beam 1 is fixedly connected to the mounting plate 2.
The mounting structure disclosed in the above embodiment ingeniously realizes the conversion of the stress state of the rear anchor bolt, under the action of the stress conversion plate 5, the stress of the rear anchor bolt 3 on the mounting plate 2 is converted from tension-shear composite stress to pure shear stress, the stress of the rear anchor bolt on the stress conversion plate 5 is also shear stress, the direction of the shear force is represented by a straight arrow in fig. 2, and because the shear tolerance of the rear anchor bolt 3 is much greater than the tension tolerance of the rear anchor bolt 3, the safety of the mounting structure of the cantilever 4 and the support beam 1 is greatly improved; meanwhile, the rear anchor bolts 3 do not bear pulling force any more, and damage to the concrete of the supporting beam 1 can not be caused, so that damage forms such as damage caused by pulling of a concrete cone, damage caused by concrete splitting, damage caused by concrete edge shearing, damage caused by concrete shearing prying and the like do not need to be checked, the design difficulty and complexity of the mounting structure of the cantilever and the supporting beam are further reduced, the mounting structure is simple in integral structure, convenient to construct and low in cost.
Preferably, the pure shearing force of the rear anchor bolt 3 on the mounting plate is controlled to be a center shearing mode, and the center shearing mode refers to a shearing mode satisfying the following relation: c is more than or equal to 10hefWherein h isefC is the minimum distance from the equivalent anchoring center (also called group anchor anchoring center) of the rear anchor bolt 3 to the bottom edge of the support beam 1, which is the effective anchoring length of the rear anchor bolt 3.
It can be understood by those skilled in the art that the manner of fixedly connecting the mounting plate 2 and the force conversion plate 5 is not limited to one, and in view of construction convenience, the connection of the position where the mounting plate 2 and the force conversion plate 5 intersect may be achieved by welding, the force conversion plate 5 and the mounting plate 2 are two parts separately provided before welding, the force conversion plate 5 and the mounting plate 2 are welded to form an integral component before mounting, then the integral component is placed at the right angle position of the support beam 1, and then the force conversion plate 5 and the mounting plate 2 are respectively anchored on the top of the support beam 1 and the side of the support beam 1 by the rear anchor bolt 3.
In another embodiment, the mounting plate 2 is fixedly connected to the force-receiving conversion plate 5 by a bolt, specifically, a folded edge bent in a direction away from the supporting beam 1 is disposed at the top end of the mounting plate 2, a first bolt hole is disposed on the folded edge, one end of the force-receiving conversion plate 5 close to the mounting plate 2 extends out of the top of the supporting beam 1 and is overlapped on the folded edge, a second bolt hole corresponding to the first bolt hole is disposed at one end of the force-receiving conversion plate 5 close to the mounting plate 2, and the mounting plate 2 is fixedly connected to the force-receiving conversion plate 5 by a bolt passing through the first bolt hole and the second bolt hole.
In some cases, the top of the support beam 1 is connected to the building floor 6 as shown in fig. 2, and the top of the support beam 1 is flush with the top of the building floor 6, and a part of the force-receiving conversion plate 5 is anchored to the top of the support beam 1 and another part is anchored to the top of the building floor 6; of course, in some cases, the top of the support beam 1 forms a step structure with the top of the building floor 6, and the force conversion plate 5 should be designed to be a profile so that one part of the force conversion plate 5 is anchored on the top of the building floor 6 and the other part is anchored on the top of the support beam 1.
The fixing manner of the overhanging member 4 on the mounting plate 2 is also not limited to one, and in one case, the overhanging member 4 may be fixedly connected to the mounting plate 2 by bolts; in another case, the overhanging part 4 itself is a steel structural member, the overhanging part 4 and the mounting plate 2 itself are an integrated structure, and of course, the overhanging part 4 can be welded to the mounting plate 2 during actual mounting.
From the angle of reducing weight and material saving consideration, the longitudinal section of piece 4 of encorbelmenting in this embodiment is right trapezoid, as shown in fig. 2, the tip at the piece 4 of encorbelmenting the lower bottom place links to each other with mounting panel 2 is fixed, the tip at the last end place of piece 4 of encorbelmenting extends towards the direction of keeping away from a supporting beam 1, and the right angle of piece 4 of encorbelmenting is located the top, the hypotenuse is located the below, in right trapezoid's piece 4 of encorbelmenting, its hypotenuse itself can constitute the bearing diagonal to piece 4 of encorbelmenting, thereby effectively improve the stability of piece 4 of.
The vertical cross section of the cantilever 1 is a cross section of the cantilever 1 cut by a vertical plane passing through the center line of the cantilever.
Of course, the sectional shape of the cantilever beam is not limited to the right trapezoid, but may be a rectangle or other shapes.
The stress analysis and calculation needs to be performed in the design process according to the dimensional specifications of the stress conversion plate 5 and the mounting plate 2, the number and specifications of the stress conversion plate 5 and the rear anchor bolts 3 on the mounting plate 2, and these calculation processes are conventional means of those skilled in the art and are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An installation structure of an overhanging piece and a supporting beam comprises the supporting beam (1) and the overhanging piece (4), and is characterized by also comprising an installation plate (2) and a stress conversion plate (5), wherein,
the mounting plate (2) is anchored on the side surface of the supporting beam through a rear anchoring bolt (3);
the stress conversion plate (5) is anchored on the top surface of the support beam (1) through a rear anchoring bolt (3), and the installation plate (2) is fixedly connected with the crossed position of the stress conversion plate (5);
the cantilever piece (4) is close to one end of the supporting beam (1) and is fixedly connected to the mounting plate (2).
2. The mounting structure of an overhang and support beam as claimed in claim 1, wherein the mounting plate (2) is welded to the position where it intersects with the force receiving conversion plate (5).
3. The mounting structure of the cantilever and the supporting beam as claimed in claim 1, wherein the top end of the mounting plate (2) is provided with a folded edge bending towards the direction far away from the supporting beam (1), and the folded edge is provided with a first bolt hole; one end of the stress conversion plate (5) close to the mounting plate (2) is provided with a second bolt hole corresponding to the first bolt hole, and a bolt penetrating through the first bolt hole and the second bolt hole fixedly connects the mounting plate (2) and the stress conversion plate (5).
4. An overhang and support beam mounting structure as claimed in claim 1, wherein the overhang (4) and the mounting plate (2) are of an integral structure.
5. The cantilever-and-support beam-mounting structure as claimed in claim 1, wherein the cantilever (4) is fixedly attached to the mounting plate (2) by bolts.
6. An installation structure of an overhanging piece and a supporting beam according to claim 4 or 5, wherein the longitudinal section of the overhanging piece (4) is right trapezoid, the lower bottom of the overhanging piece (4) is connected with the installation plate (2), the right-angle side of the overhanging piece (4) is arranged upward, and the bevel edge of the overhanging piece (4) is arranged downward.
7. The mounting structure of an overhang and a support beam as claimed in claim 1, wherein the top of the support beam (1) is connected to a building floor (6) and the top of the support beam (1) is flush with the top of the building floor (6), and one part of the stress conversion plate (5) is anchored to the top of the support beam (1) and the other part is anchored to the top of the building floor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258352.4U CN212271686U (en) | 2020-06-30 | 2020-06-30 | Mounting structure of piece and a supporting beam encorbelments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258352.4U CN212271686U (en) | 2020-06-30 | 2020-06-30 | Mounting structure of piece and a supporting beam encorbelments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212271686U true CN212271686U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021258352.4U Active CN212271686U (en) | 2020-06-30 | 2020-06-30 | Mounting structure of piece and a supporting beam encorbelments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212271686U (en) |
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2020
- 2020-06-30 CN CN202021258352.4U patent/CN212271686U/en active Active
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