Lightweight truss type steel-skeleton-free concrete prefabricated laminated slab component
By installing fasteners and support rods in the lightweight truss-type steel-free concrete prefabricated laminated plate members, the self-support of the laminated plate is achieved, solving the problem of inconvenience in construction under small spans and improving construction efficiency.
Patent Information
- Application Number
- CN202421463233.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When constructing small and medium-span floor slabs of existing prefabricated buildings, the support system under the stacked plates of prefabricated truss steel bars is cumbersome, resulting in inconvenience in construction.
Lightweight truss-type steel-free concrete prefabricated laminated plate members are used. By setting fasteners and support rods on the upper chord ribs, the self-support of the laminated plates is achieved by using loop connections, reducing the need for the support system under the prefabricated plates.
It simplifies the construction difficulty under small spans, improves construction efficiency, and reduces the construction complexity of the support system.
Smart Images
Figure CN223119329U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of precast composite slabs, and particularly to a lightweight truss-type steel-bar-free concrete precast composite slab component. Background Art
[0002] The steel-bar-free concrete precast composite slab component is a new type of building component, which is a structural system composed of a precast concrete composite slab and a reinforced concrete component. The characteristic of this component is that a reinforced concrete component is added to the precast concrete composite slab to enhance the overall bearing capacity and stability.
[0003] Currently, most prefabricated buildings adopt precast truss-reinforced composite slab components. When there is a span between floors, a support system needs to be set under the precast truss-reinforced composite slab. Due to the complexity of the construction of the support system, there are certain inconveniences in the construction of the composite slab when the span is small due to force limitations. Therefore, a lightweight truss-type steel-bar-free concrete precast composite slab component is proposed to solve the above problems. Utility Model Content
[0004] In view of the deficiencies of the prior art, this application provides a lightweight truss-type steel-bar-free concrete precast composite slab component, which has the advantages of facilitating the force support of the composite slab component under a small span and reducing the inconvenience of the construction of the support system.
[0005] To achieve the above object, this application provides the following technical solution: A lightweight truss-type steel-bar-free concrete precast composite slab component, including a bottom plate, a precast slab, and a steel bar member disposed in the bottom plate;
[0006] The steel bar member includes longitudinal bars and transverse bars for supporting the composite slab. The longitudinal bars and the transverse bars are vertically attached to the surface of the bottom plate. The steel bar member further includes a lower chord bar vertically welded to the transverse bar, a web bar fixedly connected to the lower chord bar, and an upper chord bar fixedly connected to the web bar;
[0007] A connecting structure is further provided on the upper chord bar;
[0008] The connecting structure includes a buckle member fixed on the upper chord bar and a support rod connected between the buckle members. An installation plate is fixedly installed on the buckle member, and a collar is fixedly installed on the installation plate. The support rod slidably penetrates through the collar.
[0009] Further, every four of the web bars are in a group, and one end of the web bar extends into the precast slab, and the other end is welded to the lower end of the upper chord bar, and multiple groups of the web bars are continuously arranged on the upper chord bar.
[0010] Further, the buckle includes an upper hoop and a lower hoop that are snap-fitted to each other, and bolts are threadedly installed at both ends of the upper hoop and the lower hoop.
[0011] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0012] The lightweight truss-type precast composite slab member without steel skeleton concrete is installed on the upper chord by setting an upper hoop and a lower hoop, and the collar is connected through the mounting plate, so that the two precast slabs with a small span can be supported by the support rod, thus eliminating the need to build an additional support system under the precast slab, reducing the construction difficulty and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a top view of the structure of the present application;
[0014] Figure 2 is a schematic diagram of the overall structure of the precast slab of the present application;
[0015] Figure 3 is a schematic diagram of the structure of the buckle of the present application.
[0016] In the figure: 1, bottom plate; 2, precast slab; 3, transverse reinforcement; 4, longitudinal reinforcement; 5, lower chord; 6, web reinforcement; 7, upper chord; 8, mounting plate; 9, upper hoop; 10, lower hoop; 11, collar; 12, support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0018] Please refer to Figures 1 - 3 , a lightweight truss-type precast composite slab member without steel skeleton concrete in this embodiment includes a bottom plate 1, a precast slab 2 and a steel bar member disposed in the bottom plate 1, wherein the steel bar member includes longitudinal reinforcements 4 and transverse reinforcements 3 for supporting the composite slab. The longitudinal reinforcements 4 and the transverse reinforcements 3 are vertically attached to the surface of the bottom plate 1 and are fixed by means of concrete pouring.
[0019] In this embodiment, the steel bar member further includes a lower chord 5 vertically welded to the transverse reinforcement 3, a web reinforcement 6 fixedly connected to the lower chord 5, and an upper chord 7 fixedly connected to the web reinforcement 6.
[0020] Preferably, every four web stirrups 6 form a group. One end of the web stirrup 6 extends into the precast slab 2, and the other end is welded to the lower end of the upper chord bar 7. Multiple groups of web stirrups 6 are continuously arranged on the upper chord bar 7.
[0021] It should be noted that a connecting structure is also provided on the upper chord bar 7 to complete the support for the butting plate under short spans. The connecting structure includes a buckle member fixed on the upper chord bar 7 and a support rod 12 connected between the buckle members.
[0022] Preferably, the buckle member includes an upper hoop 9 and a lower hoop 10 that are buckled with each other. Bolts are threadedly installed at both ends of the upper hoop 9 and the lower hoop 10. Through the bolts, it is convenient to hold the upper hoop 9 and the lower hoop 10 together and fix them on the upper chord bar 7.
[0023] In this embodiment, an installation plate 8 is fixedly installed on the lower hoop 10, and a collar 11 is fixedly installed on the installation plate 8. The support rod 12 slides through the collar 11. Through the connection between the support rod 12 and the collar 11, the support rod 12 can temporarily support two superimposed slabs, thus avoiding the construction of a support system.
[0024] The working principle of the above embodiment is as follows:
[0025] By lifting the lifting points provided on the precast slab 2, the superimposed slab can be hoisted onto the assembled building. By buckling and fixing the upper hoop 9 and the lower hoop 10 of the connecting structure on the upper chord bar 7 and fixing the upper hoop 9 and the lower hoop 10 with bolts, the collar 11 can be arranged on the superimposed slab. By passing the support rod 12 through the collars 11 on two superimposed slabs, the support rod 12 can support two superimposed slabs under small spans, thus eliminating the need for additional construction of a support system.
[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.
[0027] Although embodiments of the present application have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A lightweight truss-type precast composite slab member without steel reinforced concrete, comprising a bottom plate (1), a precast slab (2), and a steel bar member embedded in the bottom plate (1). It is characterized in that: The steel bar member includes longitudinal bars (4) and transverse bars (3) for supporting the composite slab. The longitudinal bars (4) and the transverse bars (3) are vertically attached to the surface of the bottom plate (1). The steel bar member further includes a lower chord bar (5) vertically welded to the transverse bar (3), a web bar (6) fixedly connected to the lower chord bar (5), and an upper chord bar (7) fixedly connected to the web bar (6); A connecting structure is further provided on the upper chord bar (7); The connecting structure includes a buckle member fixed on the upper chord bar (7) and a support rod (12) connected between the buckle members. An installation plate (8) is fixedly installed on the buckle member, and a collar (11) is fixedly installed on the installation plate (8). The support rod (12) slidably penetrates through the collar (11).
2. The lightweight truss-type steel-free reinforced concrete precast composite slab member according to claim 1, wherein: Every four of the web bars (6) are in a group. One end of the web bar (6) extends into the precast slab (2), and the other end is welded to the lower end of the upper chord bar (7). Multiple groups of the web bars (6) are continuously arranged on the upper chord bar (7).
3. A lightweight truss-type precast composite slab member without steel reinforced concrete according to claim 1, characterized in that: The buckle member includes an upper hoop (9) and a lower hoop (10) that are buckled with each other. Bolts are threadedly installed at both ends of the upper hoop (9) and the lower hoop (10).