Disassembly-support-free cast-in-place box type bay window and construction method thereof

By using precast composite slabs and steel reinforcement binding, the construction of cast-in-place box-shaped bay windows can be completed without dismantling supports. This solves the problem of increased high-altitude work time caused by formwork removal and support erection in existing technologies, improves construction quality and efficiency, and reduces risks.

CN120797970APending Publication Date: 2025-10-17CSCEC CITY CONSTR DEV +1
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Patent Information

Application Number
CN202510988064.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

During the construction of cast-in-place box-type bay windows, the removal of formwork and the erection of supports increase the workers' time working at height, bringing risks and low efficiency.

Method used

By using precast composite slabs and steel reinforcement binding, a box-type structure that does not require dismantling of supports is formed. The floor slab, inner beam of the window sill, outer beam of the window sill, and bottom slab of the window sill are cast as a whole, eliminating the need for support erection and dismantling during the construction of the top slab of the window sill, and directly forming an integral box-type structure.

Benefits of technology

It reduces the time workers spend working at heights, lowers construction risks, improves construction quality and efficiency, and increases the turnover efficiency of formwork and support structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a support-dismounting-free cast-in-place box type bay window and a construction method thereof.The support-dismounting-free cast-in-place box type bay window comprises a windowsill bottom plate, a windowsill inner beam and a windowsill outer beam are arranged at the top of the windowsill bottom plate, a windowsill top plate is arranged at the tops of the windowsill inner beam and the windowsill outer beam, and cast-in-place concrete is arranged on the windowsill top plate; longitudinal steel bars in the windowsill inner beam and the windowsill outer beam extend upwards into the windowsill top plate and are connected with first transverse steel bars in the windowsill top plate in a binding mode, and a floor slab is arranged on the inner side of the windowsill inner beam. During construction, the floor slab, the windowsill inner beam, the windowsill outer beam and the windowsill bottom plate are poured together; the windowsill top plate is constructed by adopting a plurality of prefabricated laminated slabs; and a formwork is erected, and cast-in-place concrete is poured after the formwork is erected, so that a box-type overall structure is formed. The bay window construction quality and efficiency can be improved, the overhead working time of workers can be shortened, the investment of risk cost is reduced, and meanwhile the turnover efficiency of the formwork and the supporting frame body can be improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bay window construction, and in particular to a non-demolition and non-expansion cast-in-place box bay window and a construction method thereof. BACKGROUND

[0002] At present, a large number of bay windows are used in residential buildings in southern coastal cities. The existence of the bay window enriches the building facade, makes the observation angle of the occupants larger, and the view more open, and also meets the desire of the occupants to expand the indoor space and enjoy the coastal scenery.

[0003] However, when the bay window encounters a rich external facade line modeling of a high-rise residential building, in some unavoidable parts, it is designed as a box-shaped bay window structure. After the concrete pouring is completed, the support and formwork removal become a troublesome thing. Workers need to stand in a basket to remove the formwork in the bay window, and after removal, they need to build a closure, which greatly increases the time of the workers' high-altitude operation and brings great risk factors. Therefore, how to reduce the time of the workers' high-altitude operation in the construction process of the cast-in-place box bay window is a technical problem to be solved urgently. SUMMARY

[0004] The present application aims to solve the problems of the prior art and provides a non-demolition and non-expansion cast-in-place box bay window and a construction method thereof.

[0005] To achieve the above-mentioned purpose, the following technical solutions are adopted:

[0006] A non-demolition and non-expansion cast-in-place box bay window comprises a window sill bottom plate, a window sill inner beam and a window sill outer beam are arranged on the top of the window sill bottom plate, a window sill top plate is arranged on the top of the window sill inner beam and the window sill outer beam, cast-in-place concrete is arranged on the window sill top plate, longitudinal steel bars inside the window sill inner beam and the window sill outer beam are inserted into the window sill top plate and are connected with first transverse steel bars inside the window sill top plate by binding, and a floor slab is arranged on the inner side of the window sill inner beam.

[0007] The window sill top plate comprises a plurality of prefabricated composite boards.

[0008] The longitudinal steel bars are inserted into the cast-in-place concrete and are bound with second transverse steel bars.

[0009] The construction method of the non-demolition and non-expansion cast-in-place box bay window comprises the following specific steps:

[0010] S1, the floor slab is poured together with the window sill inner beam, the window sill outer beam and the window sill bottom plate;

[0011] S2, the window sill top plate is constructed by using a plurality of prefabricated composite boards, without the need for support erection and removal, the longitudinal steel bars of the window sill inner beam and the window sill outer beam are inserted to protrude from the window sill top plate and are connected with the first transverse steel bars inside the window sill top plate by binding;

[0012] S3, the exposed longitudinal steel bars bind the second transverse steel bars, after the binding is completed, the formwork is erected, after the formwork is erected, the cast-in-place concrete is poured, and a box type integral structure is formed.

[0013] The present application has the advantages that the present application can improve the quality and efficiency of the construction of the bay window, reduce the time of the workers in the high-altitude operation, reduce the risk cost investment, and improve the turnover efficiency of the formwork and the support frame body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure diagram of the bay window without disassembly and expansion in the present application;

[0015] In the figure, 1 is a floor, 2 is a window sill inner beam, 3 is a window sill outer beam, 4 is a window sill bottom plate, 5 is a window sill top plate, 6 is cast-in-place concrete, 7 is a longitudinal steel bar, 8 is a first transverse steel bar, 9 is formwork, and 10 is a second transverse steel bar.

[0016] The present application will be described in detail below with reference to the embodiments of the present application and the accompanying drawings. DETAILED DESCRIPTION

[0017] The principles and features of the present application are described below in conjunction with the accompanying drawings and embodiments, and the embodiments are only used to explain the present application and are not used to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with examples in conjunction with the accompanying drawings. The advantages and features of the present application will be more apparent according to the following description. It should be noted that the accompanying drawings are very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of explaining the embodiments of the present application.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] The present application is further described below in conjunction with the accompanying drawings and embodiments:

[0020] A bay window without disassembly and expansion, as shown in the figure, comprises a floor 1, a window sill inner beam 2, a window sill outer beam 3, a window sill bottom plate 4, a window sill top plate 5, cast-in-place concrete 6, a longitudinal steel bar 7, a first transverse steel bar 8, and a second transverse steel bar 10. Figure 1

[0021] ​The top of the window sill bottom plate 4 is provided with a window sill inner beam 2 and a window sill outer beam 3, the top of the window sill inner beam 2 and the window sill outer beam 3 is provided with a window sill top plate 5, the window sill top plate 5 is provided with cast-in-place concrete 6, the longitudinal steel bars 7 inside the window sill inner beam 2 and the window sill outer beam 3 extend upwards into the window sill top plate 5 and are bound and connected with the first transverse steel bars 8 inside the window sill top plate 5, and the inner side of the window sill inner beam 2 is provided with the floor 1.

[0022] The window sill top plate 5 comprises a plurality of prefabricated composite boards.

[0023] The upper end of the side of the window sill inner beam 2 and the window sill outer beam 3 is provided with a formwork 9 on both sides of the window sill top plate 5, and the cast-in-place concrete 6 is poured on the window sill top plate 5 between the two formworks 9.

[0024] The longitudinal steel bars 7 extend into the cast-in-place concrete 6 and are bound with the second transverse steel bars 10.

[0025] The construction method of the cast-in-place box type convex window without disassembly and expansion comprises the following specific steps:

[0026] S1, the floor 1 is poured together with the window sill inner beam 2, the window sill outer beam 3 and the window sill bottom plate 4;

[0027] S2, the window sill top plate 5 is constructed by using a plurality of prefabricated composite boards, without supporting and setting up and disassembling, and the longitudinal steel bars 7 of the window sill inner beam 2 and the window sill outer beam 3 extend upwards to expose the window sill top plate 5 and are bound and connected with the first transverse steel bars 8 inside the window sill top plate 5;

[0028] S3, the exposed longitudinal steel bars 7 are bound with the second transverse steel bars 10, the formwork 9 is set up after the binding is completed, the cast-in-place concrete 6 is poured after the formwork 9 is set up, and a box type integral structure is formed.

[0029] The present application pours the place which needs to be built on the outer facade together with the whole, and adopts the method of composite board during the construction of the window sill top plate 5, so that the supporting and setting up and disassembling during the construction of the window sill top plate 5 are omitted, which not only reduces the time of the operating personnel in high-altitude operation, but also improves the construction efficiency.

[0030] The present application is described above in conjunction with the drawings, and obviously the specific implementation of the present application is not limited by the above method, as long as various improvements are made by adopting the method concept and technical scheme of the present application, or direct application in other fields without improvement, which are all within the protection scope of the present application.

Claims

1. A cast-in-place box-type bay window without dismantling support, characterized in that: The invention comprises a window sill bottom plate (4), a window sill inner beam (2) and a window sill outer beam (3) are provided on the top of the window sill bottom plate (4), a window sill top plate (5) is provided on the top of the window sill inner beam (2) and the window sill outer beam (3), cast-in-place concrete (6) is provided on the window sill top plate (5), longitudinal steel bars (7) inside the window sill inner beam (2) and the window sill outer beam (3) extend upward into the window sill top plate (5) and are tied and connected with a first transverse steel bar (8) inside the window sill top plate (5), and a floor plate (1) is provided on the inner side of the window sill inner beam (2).

2. The cast-in-situ box-type bay window according to claim 1 is characterized in that: The window sill top plate (5) comprises a plurality of prefabricated composite plates.

3. The cast-in-situ box-type bay window according to claim 2 is characterized in that: Formwork (9) is supported on both sides of the window sill top plate (5) at the upper ends of the side surfaces of the window sill inner beam (2) and the window sill outer beam (3), and cast-in-place concrete (6) is poured on the window sill top plate (5) between the formwork (9) on both sides.

4. The cast-in-situ box-type bay window according to claim 3 is characterized in that: The longitudinal reinforcement (7) extends into the interior of the cast-in-place concrete (6) and is tied with a second transverse reinforcement (10).

5. The construction method of a cast-in-situ box-type bay window without dismantling support according to claim 4 is characterized in that: The specific steps are: S1, the floor slab (1) is cast together with the window sill inner beam (2), the window sill outer beam (3), and the window sill bottom plate (4); S2. The window sill top plate (5) is constructed using a plurality of prefabricated composite plates, and does not require support erection or dismantling. The longitudinal steel bars (7) of the window sill inner beam (2) and the window sill outer beam (3) extend upward to expose the window sill top plate (5) and are tied and connected with the first transverse steel bar (8) in the window sill top plate (5); S3, the exposed longitudinal reinforcement (7) is tied with the second transverse reinforcement (10), and after the tying is completed, the formwork (9) is supported. After the formwork (9) is supported, the cast-in-place concrete (6) is poured to form a box-type integral structure.

Citation Information

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