CN216690149U - Connection structure of assembled prefabricated staircase and cast-in-place wall section - Google Patents
Connection structure of assembled prefabricated staircase and cast-in-place wall section Download PDFInfo
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- CN216690149U CN216690149U CN202123183043.2U CN202123183043U CN216690149U CN 216690149 U CN216690149 U CN 216690149U CN 202123183043 U CN202123183043 U CN 202123183043U CN 216690149 U CN216690149 U CN 216690149U
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Abstract
The application discloses joint construction of assembled prefabricated staircase and cast-in-place wall section relates to assembly type structure technical field. The problem of prefabricated staircase bench among the prior art overweight, and prefabricated staircase and stairwell face the shear force wall of building outside and do not have the connection, lead to shear force wall plane unstability outward is solved. The prefabricated staircase comprises a prefabricated staircase body and an outer side shear wall connected with the prefabricated staircase body; prefabricated staircase includes first stair bench, one side of first stair bench is followed bench length direction is provided with many connection wall body reinforcing bars, outside shear force wall passes through connection wall body reinforcing bar with the bench is connected. By adopting the connecting structure of the prefabricated staircase and the cast-in-place wall section, the stable support of the shear wall on the outer side of the building of the staircase is realized.
Description
Technical Field
The application relates to the technical field of assembly type buildings, and relates to a connection structure of an assembly type prefabricated staircase and a cast-in-place wall section.
Background
Stair prefabrication has become a popular prefabricated solution in prefabricated residential buildings. The house staircase uses the scissors ladder as the main, and after adopting prefabricated staircase, single prefabricated staircase weight is more than 6 tons, and its weight is far more than the hoist weight of the tower crane commonly used in construction at present stage, only adopts the big counter weight tower crane for lifting prefabricated staircase, and economic cost is considerable, causes the wasting of resources. Moreover, when the stairwell is faced the building outside and is arranged, because of adopting prefabricated staircase can lead to this position shear force wall both sides to lack effective horizontal brace, there is safe danger in wall body stability under dead weight, stair load and horizontal earthquake effect.
At the present stage, aiming at the overweight of the prefabricated bench, the construction stage can only adopt the replacement of a large hoisting tower crane, and the construction lease cost is increased. And to wall body stability problem, prior art is at the cast-in-place slab band of building floor height position horizontal of choosing outward, nevertheless chooses the concrete slabs outward and influences building outward appearance effect, chooses length when not enough outward when the level, and the horizontal node can't be as the outer effective support of plane of wall body, if not taking measures, prefabricated staircase and outer wall do not have reliable connection, and then lead to outside concrete wall body unstability destruction under vertical load and earthquake action.
SUMMERY OF THE UTILITY MODEL
The embodiment of this application has solved prefabricated staircase section overweight among the prior art through providing a connection structure of prefabricated staircase and cast-in-place wall section, and prefabricated staircase and stairwell face the shear force wall of the building outside and do not have the connection, lead to the problem of shear force wall out-of-plane unstability, has realized prefabricated staircase and has faced the outrigger of the shear force wall of the building outside.
The embodiment of the utility model provides a connecting structure of an assembled prefabricated staircase and a cast-in-place wall section, which comprises the prefabricated staircase and an outer side shear wall connected with the prefabricated staircase;
prefabricated staircase includes first stair bench, one side of first stair bench is followed bench length direction is provided with many connection wall body reinforcing bars, outside shear force wall passes through connection wall body reinforcing bar with the bench is connected.
Furthermore, the device also comprises a half-layer connecting beam;
the prefabricated staircase further comprises a second staircase section, and the first staircase section and the second staircase section are arranged in a scissor ladder manner;
the first stair section comprises a first step section and a third step section which are connected, and the second stair section comprises a second step section and a fourth step section which are connected;
the cross-section of half layer tie-beam is "Z" style of calligraphy or "Z" style of calligraphy structure of falling, first step section with between the third step section, the second step section with between the fourth step section all through half layer tie-beam connects.
Furthermore, the steel support columns are arranged on one side, close to the outer side shear wall, of the first stair step and used for supporting the half-layer connecting beams, and the steel support columns are poured into the outer side shear wall.
Furthermore, the two ends of the first stepping section, the third stepping section, the second stepping section and the fourth stepping section are respectively connected with the building main body through the half-layer connecting beam and the flat-layer ladder beam.
Still further, the construction column is arranged at two ends of the horizontal connecting beam of the shaft and used for restraining masonry filler walls between the construction columns.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
according to the connecting structure of the assembled prefabricated staircase and the cast-in-place wall section, the wall body arranged on one side of the staircase near the outer side of the building, namely the outer side shear wall, is reliably connected with the prefabricated staircase, namely the first staircase section, through the connecting wall body steel bars, so that the stress safety and stability of the outer side shear wall are ensured. By adopting the connecting structure of the prefabricated staircase and the cast-in-place wall section, the problem that the prefabricated staircase section is overweight and the shear wall of the staircase near the outer side of the building is not connected, so that the outer plane of the shear wall is unstable in the prior art is effectively solved, and the prefabricated staircase is used as a stable support of the shear wall near the outer side of the building through the connecting technology of the prefabricated staircase connecting steel bars and the cast-in-place wall section.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of an assembled prefabricated staircase provided by an embodiment of the present application;
fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Icon: 1. half-layer connecting beams; 2. a first step section; 3. a second stepping section; 4. a third stepping section; 5. a fourth stepping section; 6. constructing a column; 7. the shaft is horizontally connected with the beam; 8. a flat-layer ladder beam; 9. an outer shear wall; 10. connecting wall body reinforcing steel bars; 11. and (5) a steel support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
At present, the shear wall on the outer side of the existing staircase facing the building is generally directly cast the wall section and the whole staircase section of a standard floor into a whole in the casting process, and the wall bodies on other sides of the staircase are also connected with other structural beams and structural plates in the building, so that the condition of unstable structure does not exist; the shear wall positioned on the outer side of the building adjacent to the staircase is generally a straight-line-shaped wall limb, and two sides of the wall are not provided with effective horizontal supports, so that the stability of the wall is safe and dangerous under the actions of self weight, staircase load and horizontal earthquake.
The embodiment of the utility model provides a connecting structure of an assembled prefabricated staircase and a cast-in-place wall section, and the connecting scheme comprises the prefabricated staircase and an outer side shear wall 9 connected with the prefabricated staircase; referring to fig. 2, the prefabricated staircase includes a first staircase section, one side of the first staircase section is provided with a plurality of connecting wall body reinforcing bars 10 along the length direction of the first staircase section, and an outer side shear wall 9 is connected with the first staircase section through the connecting wall body reinforcing bars 10.
In particular, according to the connection structure of the prefabricated staircase and the cast-in-place wall section, the wall body arranged on one side of the staircase near the outer side of the building, namely the outer side shear wall 9, is reliably connected with the prefabricated staircase, namely the first staircase section, through the connecting wall body steel bars 10, so that the stress safety and the stability of the outer side shear wall 9 can be ensured. By adopting the connecting structure of the prefabricated staircase and the cast-in-place wall section, the problem that the prefabricated staircase section is too heavy and the prefabricated staircase is not connected with the shear wall of the staircase near the outer side of the building to cause the out-of-plane instability of the shear wall is effectively solved.
With reference to fig. 1 and 2, the prefabricated staircase cast-in-place wall section further comprises a half-layer connecting beam 1; the prefabricated staircase also comprises a second staircase section, and the first staircase section and the second staircase section are arranged in a scissor ladder way; the first stair step comprises a first step section 2 and a third step section 4 which are connected, and the second stair step comprises a second step section 3 and a fourth step section 5 which are connected; the cross-section of half layer tie-beam 1 is "Z" style of calligraphy or "Z" style of calligraphy structure of falling, and first step section 2 is stepped on between 4 with the third, and second step section 3 is stepped on between 5 with the fourth step and is all connected through half layer tie-beam 1.
This embodiment is in the middle of practical application, it is prefabricated with prefabricated staircase sectional type, and carry out the segmentation installation, it is specific, this scissors ladder includes first stair bench and second stair bench, first stair bench place space plane and second stair bench place space plane are parallel, in a standard layer, first stair bench is connected by first step section 2 and third step section 4 and is constituteed, the second stair bench is stepped on step section 3 by the second and is connected with fourth step section 5 and form, connect through the half floor tie-beam 1 of falling "Z" style of calligraphy structure between first step section 2 and the third step section 4, connect through the half floor tie-beam 1 of "Z" style of calligraphy structure between second step section 3 and the fourth step section 5. On the one hand, can effectively solve the production of stair, the heavy load condition of transportation and hoist and mount process, greatly improve the convenience and the economical of engineering, on the other hand, step section 2 and third step section 4 with face building outside shear force wall 9 and be connected, can solve to add the influence that cast-in-place horizontal baffle brought the architectural effect, effectively solve and face building outside shear force wall 9 self stability problem.
Referring to fig. 2, the prefabricated cast-in-place wall section of a staircase in this embodiment further includes a steel support pillar 11, where the steel support pillar 11 is disposed on one side of the first staircase section close to the outer side shear wall 9 and is used to support the first staircase section, and the steel support pillar 11 is poured into the outer side shear wall 9.
In the specific construction process of the embodiment, the rest of concrete members are poured except the outer shear wall 9 concrete of the staircase, the steel support columns 11 are pre-embedded in the outer shear wall 9 of the lower layer, the whole staircase beam slab is supported on the steel support columns 11 on two sides, and the half-layer connecting beam 1 is supported on the steel support columns 11 between the inner concrete wall and the outer shear wall 9.
In the prior art, steel support columns 11 cannot be pre-supported in the pouring process of the shear wall, because the shear wall and the stairs are integrally poured, in the application, the prefabricated stairs are hoisted in sections in the construction process, the prefabricated stairs are hoisted firstly, after connecting wall reinforcing steel bars 10 need to be anchored in the outer shear wall 9, the outer shear wall 9 and the prefabricated stairs are reliably connected, and before the outer shear wall 9 is poured, one side, close to the outer shear wall 9, of the first stair step is arranged in a suspension mode, therefore, the steel support columns 11 are required to be supported, and then the pouring of the outer shear wall 9 is carried out, and by the design, the stability of the cast-in-place wall step in the construction process and the subsequent use process can be guaranteed.
With reference to fig. 1, the two ends of the first step section 2, the third step section 4, the second step section 3 and the fourth step section 5 are connected to the building body through the half-storey connecting beam 1 and the flat-storey ladder beam 8, respectively.
This embodiment is in actual work progress, before prefabricated staircase hoist and mount, need carry out the buildding of flat-bed ladder beam 8 to prefabricated staircase is when hoist and mount, and is concrete, and the one end of stepping on first 2, third stepping on section 4, second stepping on section 3 and fourth stepping on section 5 is set up on flat-bed ladder beam 8 respectively, and the other end is set up on half a layer tie-beam 1, in order to guarantee prefabricated staircase's structural stability.
As shown in fig. 1 and 2, the prefabricated staircase cast-in-place wall section of the present embodiment further includes a constructional column 6, wherein the constructional column 6 is disposed on top of the horizontal connecting beam 7 of the lower stairwell and is used for constraining masonry filler walls or rear brickwork walls between the constructional columns 6 to ensure the stability of the whole structure.
When the prefabricated staircase of this embodiment is specifically constructed on a standard floor, the reinforcement of vertical wall is carried out first, the template is erect, vertical wall in the cloud line scope in fig. 2 is outside shear force wall 9, outside shear force wall 9 only carries out the ligature of wall reinforcing bar, after pouring all other vertical wall concretes of this layer, then pour flat terraced beam 8, scissors stair intermediate level concrete beam be half a layer tie beam 1, then hoist the horizontal prefabricated staircase that is close to outside shear force wall 9 department, after finishing hoisting, anchor connecting wall reinforcing bar 10 in outside shear force wall 9, again carry out outside wall form and set up, pour outside shear force wall 9, prefabricated staircase forms wholly with outside shear force wall 9 at this moment, can ensure the outrigger of wall.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (5)
1. A connection structure of an assembled prefabricated staircase and a cast-in-place wall section is characterized by comprising the prefabricated staircase and an outer side shear wall (9) connected with the prefabricated staircase;
prefabricated staircase includes first stair bench, one side of first stair bench is followed bench length direction is provided with many connection wall body reinforcing bars (10), outside shear force wall (9) are passed through connection wall body reinforcing bar (10) with the bench is connected.
2. The connecting structure of the prefabricated staircase and the cast-in-place wall section according to the claim 1, characterized in that, the structure further comprises a half-layer connecting beam (1);
the prefabricated staircase further comprises a second staircase section, and the first staircase section and the second staircase section are arranged in a scissor ladder manner;
the first stair step comprises a first step section (2) and a third step section (4) which are connected, and the second stair step comprises a second step section (3) and a fourth step section (5) which are connected;
the cross-section of half layer tie-beam (1) is "Z" style of calligraphy or falls "Z" style of calligraphy structure, first step section (2) with step section (4) are stepped on between to the third step section (3) with step section (5) are stepped on between the fourth all through half layer tie-beam (1) is connected.
3. The connecting structure of the prefabricated staircase and the cast-in-place wall section as claimed in claim 2, further comprising a steel supporting pillar (11), wherein the steel supporting pillar (11) is arranged on the side of the first staircase section close to the outer side shear wall (9) and used for supporting the half-layer connecting beam (1), and the steel supporting pillar (11) is poured in the outer side shear wall (9).
4. The structure for connecting an assembled prefabricated staircase and a cast-in-place wall section according to claim 2, wherein the two ends of the first step section (2), the third step section (4), the second step section (3) and the fourth step section (5) are connected with the building body through the half-storey connecting beam (1) and the flat-storey beam (8), respectively.
5. The connecting structure of prefabricated staircase and cast-in-place wall section according to claim 2, characterized in that, the structure also comprises a constructional column (6), the constructional column (6) is arranged on the top of the horizontal connecting beam (7) of the lower stairwell and is used for restraining masonry infill wall between the constructional columns (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183043.2U CN216690149U (en) | 2021-12-17 | 2021-12-17 | Connection structure of assembled prefabricated staircase and cast-in-place wall section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183043.2U CN216690149U (en) | 2021-12-17 | 2021-12-17 | Connection structure of assembled prefabricated staircase and cast-in-place wall section |
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| Publication Number | Publication Date |
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| CN216690149U true CN216690149U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123183043.2U Active CN216690149U (en) | 2021-12-17 | 2021-12-17 | Connection structure of assembled prefabricated staircase and cast-in-place wall section |
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- 2021-12-17 CN CN202123183043.2U patent/CN216690149U/en active Active
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