CN215978152U - Connection structure of coincide ladder roof beam and prefabricated stair - Google Patents
Connection structure of coincide ladder roof beam and prefabricated stair Download PDFInfo
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- CN215978152U CN215978152U CN202121723399.8U CN202121723399U CN215978152U CN 215978152 U CN215978152 U CN 215978152U CN 202121723399 U CN202121723399 U CN 202121723399U CN 215978152 U CN215978152 U CN 215978152U
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Abstract
The utility model discloses a connecting structure of a superposed ladder beam and a prefabricated staircase, which is characterized by comprising the superposed ladder beam, the prefabricated staircase and a connecting assembly, wherein the superposed ladder beam comprises a prefabricated part and a cast-in-place part, a plurality of stirrups are pre-embedded in the prefabricated part, the top ends of the stirrups are exposed out of the prefabricated part and anchored in the cast-in-place part, the connecting assembly comprises a connecting plate and anchoring ribs, one end of the connecting plate is pre-embedded in concrete at the end part of the prefabricated staircase, the other end of the connecting plate is placed on the top surface of the prefabricated part and anchored in the cast-in-place part, the anchoring ribs penetrate through the connecting plate and are connected with the stirrups, and the anchoring ribs are anchored in the cast-in-place part. In the scheme, the prefabricated staircase and the superposed ladder beam are connected through the connecting assembly, and one end of the connecting assembly is placed on the surface of the prefabricated part during construction, so that the prefabricated staircase does not need to be provided with a temporary support; the prefabricated staircase and the superposed ladder beam are connected in a hinged manner, so that the stress is clear and the earthquake resistance is good; the prefabricated staircase tip can be regarded as the partial template of cast-in-place portion when pouring, reduces the template use amount.
Description
Technical Field
The utility model belongs to the technical field of assembly type buildings, and particularly relates to a connecting structure of a superposed ladder beam and a prefabricated staircase.
Background
In the assembly type building, a part of prefabricated parts are produced by a factory according to the structural design and then are transported to the site for construction and construction. Reliable connection is realized to prefabricated stair and roof beam, and during traditional prefabricated stair was connected, adopt cast-in-place ladder roof beam and prefabricated stair to connect usually, the ladder roof beam is chosen ear L shape ladder roof beam for the area, and the formwork is complicated, and cast-in-place work load is big, and the L shape is chosen the ear and is influenced the stair headroom, causes very big trouble to staircase architectural design. Choose ear node to take place to topple easily in the work progress, cause structure safety problem. There are also other improvements by resting the top and bottom ends of the prefabricated staircase on the top surface of the prefabricated part of the laminated ladder beam and the projecting stressing tendons in the prefabricated staircase are anchored in the concrete of the cast-in-place part of the laminated ladder beam. The connection structure of the overlapped ladder beam and the prefabricated staircase has the following technical problems: firstly, the production mold of the prefabricated staircase is complex, holes for the stress ribs to extend out need to be reserved, and demolding is inconvenient; secondly, because the two ends of the prefabricated staircase extend out of the stress ribs, the transportation efficiency is reduced, the stress ribs are easy to bend during transportation, and the stress ribs need to be straightened on a construction site; thirdly, binding and fixing the stress rib of the prefabricated staircase with the main rib of the superposed ladder beam, and then performing concrete pouring construction of a cast-in-place part, so that the construction efficiency is difficult to improve; and the node of prefabricated staircase and coincide ladder beam can't realize articulated connection, can't effectively disperse earthquake impact force during the antidetonation.
To sum up, need urgently to provide a connection structure of coincide ladder beam and prefabricated stair, under the prerequisite of guaranteeing the two joint strength, effectively improve production efficiency and efficiency of construction to solve the prefabricated stair production mould that exists among the prior art complicated, transport inconvenient, the lower technical problem of efficiency of construction etc..
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a connection structure of coincide ladder beam and prefabricated stair, under the prerequisite of guaranteeing the two joint strength, effectively improve production efficiency and efficiency of construction to solve the prefabricated stair production mould that exists among the prior art complicacy, transport inconvenient, the lower scheduling technical problem of efficiency of construction.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a connection structure of coincide terraced roof beam and prefabricated staircase, includes coincide terraced roof beam, prefabricated staircase and coupling assembling, coincide terraced roof beam includes prefabricated portion and cast-in-place portion, pre-buried a plurality of stirrups in the prefabricated portion, the top of stirrup expose in prefabricated portion and anchor are in cast-in-place portion, coupling assembling includes connecting plate and anchor muscle, and the one end of connecting plate is pre-buried in the concrete of the tip of prefabricated staircase, and the other end is shelved the top surface of prefabricated portion and anchor are in cast-in-place portion, the anchor muscle pass the connecting plate and with the stirrup is connected, the anchor muscle anchor is in cast-in-place portion.
On the basis of the scheme, in another improved scheme, the connecting plate comprises a connecting end and an anchoring end, the anchoring end is embedded in the end portion of the prefabricated staircase, the connecting end is exposed out of the prefabricated staircase, and the anchoring ribs penetrate through the connecting end.
On the basis of the scheme, in another improved scheme, the connecting plate is parallel to the stirrups.
On the basis of the above solution, in another improved solution, the connecting plate rests vertically on the prefabricated part.
On the basis of the scheme, in another improved scheme, the length of the anchoring rib is larger than the distance between two adjacent stirrups, and two ends of the anchoring rib are clamped on the two adjacent stirrups.
On the basis of the scheme, in another improved scheme, the angle between the connecting end and the anchoring end is an obtuse angle.
On the basis of the scheme, in another improved scheme, an anchoring bolt is arranged on the anchoring end in a penetrating mode.
On the basis of the scheme, in another improved scheme, the prefabricated staircase and the overlapped ladder beams are connected together through two connecting assemblies.
On the basis of the scheme, in another improved scheme, the connecting end is provided with a through hole with the diameter larger than the outer diameter of the anchoring rib, and the anchoring rib is inserted into the through hole.
On the basis of the scheme, in another improved scheme, a beam main rib is further arranged at an inner angle of the top end of the stirrup, and the beam main rib is anchored in the cast-in-place part.
On the basis of the scheme, in another improved scheme, the vertical section of the overlapped ladder beam is rectangular.
The technical scheme of the utility model has the beneficial technical effects that:
(1) the stair beam in the scheme is a superposed stair beam, so that the cast-in-place workload is small; the cross section of the overlapped ladder beam is rectangular, a lug does not need to be arranged, the structure is simple, and the clearance of the stairs is not influenced; the overlapped ladder beam does not need to be grooved, and the condition that the overlapped ladder beam is easy to crack in hoisting and construction can be avoided.
(2) The prefabricated staircase and the superposed ladder beam are connected through the connecting assembly, and one end of the connecting assembly is placed on the surface of the prefabricated part during construction, so that the prefabricated staircase does not need to be provided with a temporary support; the prefabricated staircase and the superposed ladder beam are connected in a hinged manner, so that the stress is clear and the earthquake resistance is good; the prefabricated staircase tip can be regarded as the partial template of cast-in-place portion when pouring, has reduced the template use amount.
(3) The prefabricated staircase in the scheme does not need to be hoisted in the hole, so that the hoisting difficulty is reduced; the embedded end of the connecting component is obliquely and downwards embedded in the end part of the stair tread of the prefabricated stair, so that the anchoring performance is good; the connecting end horizontally extends out of the end part of the stair board of the prefabricated stair, the connecting end is parallel to the stirrup direction of the superposed stair beam, and the connecting end is vertically arranged on the upper surface of the prefabricated part of the superposed stair beam, so that the problem of interference of reinforcing steel bars is avoided; the anchor muscle sets up between two adjacent stirrups, has restricted prefabricated stair's horizontal displacement, guarantees the node security in construction and the use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.
Fig. 1 is a schematic view of a connection structure of a superposed ladder beam and a prefabricated staircase (hiding a cast-in-place part and a beam main rib) of the utility model;
FIG. 2 is a partial cross-sectional view of FIG. 1 (with the stair treads of the prefabricated staircase broken away, showing the connection of the connector assemblies and overlapping stair stringers to the prefabricated staircase);
FIG. 3 is a schematic view of the prefabricated staircase and the connecting assembly according to the present invention;
FIG. 4 is a schematic view of a connecting assembly according to an embodiment of the utility model;
fig. 5 is a schematic view of a connecting plate in another embodiment of the utility model.
Reference numerals:
1-superposed ladder beam 2-prefabricated staircase 3-connecting assembly
4-prefabricated part 5-stirrup 6-connecting plate
7-anchoring rib 8-anchoring stud 9-upper platform plate
10-through hole 11-connecting end 1112-anchoring end
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
Referring to the schematic diagrams of fig. 1 to 2, the connection structure of overlapping ladder beam 1 and prefabricated staircase 2 in this embodiment includes overlapping ladder beam 1, prefabricated staircase 2 and coupling assembling 3, overlapping ladder beam 1 includes prefabricated portion 4 and cast-in-place portion, pre-buried a plurality of stirrups 5 in prefabricated portion 4, the top of stirrup 5 exposes in prefabricated portion 4 and anchors in the cast-in-place portion, coupling assembling 3 includes connecting plate 6 and anchor muscle 7, the one end of connecting plate 6 is pre-buried in the concrete of the tip of prefabricated staircase 2, the other end is shelved at the top surface of prefabricated portion 4 and is anchored in the cast-in-place portion, anchor muscle 7 passes connecting plate 6 and is connected with stirrup 5, anchor muscle 7 anchors in the cast-in-place portion. Referring to the schematic diagram of fig. 2, in the present embodiment, one end of the connecting plate 6 is embedded in the end of the upper deck of the prefabricated staircase 2.
In the scheme, one end of the connecting component 3 is placed on the surface of the prefabricated part 4 during construction, so that the prefabricated staircase 2 is not required to be provided with a temporary support; the anchoring ribs 7 are connected with the stirrups 5 to realize the positioning of the prefabricated staircase 2; the end part of the prefabricated staircase 2 can be used as a partial template of a cast-in-place part, so that the erection amount of the template is reduced; after the concrete of the cast-in-place part is poured, the connecting assembly 3 is simultaneously anchored in the prefabricated staircase 2 and the superposed ladder beam 1, so that the connection between the prefabricated staircase and the superposed ladder beam is realized, and the stress is reliable.
Referring to the schematic drawings of fig. 1 to 3, two ends of the prefabricated staircase 2 are respectively connected with two overlapped ladder beams 1, that is, the top of the prefabricated staircase 2 is connected with the overlapped ladder beam 1 of the previous layer through two connecting assemblies 3, and the bottom of the prefabricated staircase 2 is connected with the overlapped ladder beam 1 of the next layer through two connecting assemblies 3. The two ends of the prefabricated staircase 2 are the same as the connecting structure of the two superposed ladder beams 1, and the description is omitted.
Referring to the schematic drawings in fig. 3 to 4, on the basis of the above embodiment, in another modified embodiment, the connecting plate 6 includes a connecting end 11 and an anchoring end 12, the anchoring end 12 is embedded in the end of the prefabricated staircase 2, the connecting end 11 is exposed out of the prefabricated staircase 2, and the anchoring rib 7 passes through the connecting end 11. With particular reference to the illustration of fig. 4, on the basis of the above-described embodiment, in a further modified embodiment, the angle between the connecting end 11 and the anchoring end 12 is obtuse. By resting the connecting end 11 on the prefabricated part 4, the anchoring ribs 7 pass through the connecting end 11, and the anchoring ribs 7 are clamped in the stirrups 5, thereby positioning the prefabricated staircase 2.
In a further modified embodiment, with reference to the illustration of fig. 2, on the basis of the above-described embodiment, the web 6 is parallel to the stirrup 5 and the web 6 rests vertically on the preform 4. The connecting plate 6 is parallel to the stirrups 5 and is vertically placed on the prefabricated part 4, so that interference between the connecting assembly 3 and the stirrups 5 of the superposed ladder beam 1 can be avoided, the prefabricated staircase 2 can be placed on the prefabricated part 4, the load of the prefabricated staircase 2 is borne by the prefabricated beam during construction, and vertical support of the prefabricated staircase 2 is reduced or avoided.
Referring to the schematic illustration of fig. 2, on the basis of the above embodiment, in another modified embodiment, the length of the anchoring rib 7 is greater than the distance between two adjacent stirrups 5, and two ends of the anchoring rib 7 are clamped on the two adjacent stirrups 5.
In a further modified embodiment, on the basis of the above-described embodiment, an anchoring peg 8 is provided through the anchoring end 12, see the illustration of fig. 4.
Referring to the schematic illustration of fig. 1, on the basis of the above embodiment, in another modified embodiment, the prefabricated staircase 2 and the laminated ladder beam 1 are connected together by two connecting assemblies 3.
Referring to the schematic illustration of fig. 5, on the basis of the above embodiment, in another modified embodiment, the connecting end 11 is provided with a through hole 10 having a diameter larger than the outer diameter of the anchoring rib 7, and the anchoring rib 7 is inserted into the through hole 10.
On the basis of the embodiment, in another improved embodiment, the inner corner of the top end of the stirrup 5 is further provided with a beam main rib, the beam main rib and the beam main rib are connected through welding or binding, and the beam main rib is anchored in the cast-in-place part.
On the basis of the above embodiment, in another improved embodiment, the vertical section of the overlapped ladder beam 1 is rectangular.
The general construction steps of the connection structure of the laminated ladder beam 1 and the prefabricated staircase 2 in one embodiment will be briefly described with reference to the attached drawings 1 to 5:
firstly, respectively producing a prefabricated part 4 of an overlapped ladder beam 1 and a prefabricated staircase 2, and anchoring an anchoring end 12 of a connecting assembly 3 at the end part of the prefabricated staircase 2;
secondly, hoisting and positioning the prefabricated part 4, hoisting and positioning the prefabricated staircase 2, placing the connecting end 11 of the connecting component 3 on the upper surface of the prefabricated part 4, and placing the connecting end 11 between the two stirrups 5;
then, inserting the anchoring ribs 7 into the connecting plate 6 and on the two adjacent stirrups 5, and binding the anchoring ribs 7 and the stirrups 5 by adopting steel wires in order to improve the connection reliability; placing the beam main ribs, inserting and binding the two beam main ribs to the inner corners of the stirrups 5, wherein the length of the beam main ribs is equal to that of the prefabricated parts 4;
and finally, pouring concrete of the cast-in-place part, and curing and forming.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a connection structure of coincide terraced roof beam and prefabricated staircase, its characterized in that includes coincide terraced roof beam, prefabricated staircase and coupling assembling, coincide terraced roof beam includes prefabricated portion and cast-in-place portion, pre-buried a plurality of stirrups in the prefabricated portion, the top of stirrup expose in prefabricated portion and anchor are in cast-in-place portion, coupling assembling includes connecting plate and anchor muscle, the one end of connecting plate is pre-buried in the concrete of the tip of prefabricated staircase, the other end is shelved the top surface of prefabricated portion and anchor are in cast-in-place portion, the anchor muscle pass the connecting plate and with the stirrup is connected, the anchor muscle anchor is in cast-in-place portion.
2. The structure for connecting the overlapped ladder beams and the prefabricated stairway as claimed in claim 1, wherein the connecting plate comprises a connecting end and an anchoring end, the anchoring end is embedded in the end of the prefabricated stairway, the connecting end is exposed out of the prefabricated stairway, and the anchoring rib penetrates through the connecting end.
3. The structure of claim 2, wherein the connecting plate is parallel to the stirrup.
4. The structure of claim 3, wherein the angle between the connecting end and the anchoring end is an obtuse angle.
5. The structure for connecting a superposed ladder beam and a prefabricated staircase according to claim 4, wherein the anchoring end is provided with an anchoring pin.
6. The structure for connecting a superposed stair beam and a prefabricated stair according to any one of claims 2 to 5, wherein the prefabricated stair and the superposed stair beam are connected together through two connecting assemblies.
7. The connecting structure of the overlapped ladder beam and the prefabricated staircase according to claim 6, wherein the connecting end is provided with a through hole with a diameter larger than the outer diameter of the anchoring rib, and the anchoring rib is inserted into the through hole.
8. The connecting structure of the overlapped ladder beam and the prefabricated staircase according to claim 6, wherein a beam main rib is further provided at an inner corner of the top end of the stirrup, and the beam main rib is anchored in the cast-in-place part.
9. The connecting structure of the overlapped ladder beam and the prefabricated staircase according to claim 6, wherein the length of the anchoring rib is greater than the distance between two adjacent stirrups, and two ends of the anchoring rib are clamped on the two adjacent stirrups.
10. The structure for connecting the overlapped ladder beams with the prefabricated staircase according to claim 6, wherein the vertical section of the overlapped ladder beams is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121723399.8U CN215978152U (en) | 2021-07-27 | 2021-07-27 | Connection structure of coincide ladder roof beam and prefabricated stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121723399.8U CN215978152U (en) | 2021-07-27 | 2021-07-27 | Connection structure of coincide ladder roof beam and prefabricated stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215978152U true CN215978152U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121723399.8U Active CN215978152U (en) | 2021-07-27 | 2021-07-27 | Connection structure of coincide ladder roof beam and prefabricated stair |
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| Country | Link |
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| CN (1) | CN215978152U (en) |
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- 2021-07-27 CN CN202121723399.8U patent/CN215978152U/en active Active
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