Framework for assembly type floor slab and assembly type truss floor slab

Abstract

The utility model discloses a framework for an assembly type floor slab and an assembly type truss floor slab. The framework comprises an upper chord member and a web member, the upper chord member is a round tube or a square tube, a plurality of mounting holes which are uniformly distributed along the axis direction are formed in the lower part of the upper chord member, the web member is an integral wavy round tube or square tube which is formed by bending for multiple times, and the wave crest part of the web member is inserted into the mounting holes and is propped against the inner wall of the upper chord member; through holes perpendicular to the plane where the web members are located are formed in the wave trough portions of the web members, short ribs are inserted into the through holes, the structure is simple, and the structural strength of a framework of the prefabricated floor slab and the combination degree of the members and the bottom plate are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the prefabricated building material field especially relates to a frame for assembled floor and assembled truss floor. BACKGROUND

[0002] The truss is the building component that is composed of upper chord, lower chord and web, is often used for the structural member on the building, such as the structural member of floor plate, the structural member of large-span structure etc. When it is applied to the structural member of floor plate, the bottom lower chord rod is replaced by concrete bottom plate, forms the structure of upper chord, web and concrete bottom plate, wherein the web is welded with the upper chord, and the web bottom is embedded in the concrete bottom plate. In the current application, the web is usually reinforced, in the hollow structure of thick plate, due to the limitation of slenderness ratio, the web needs to use thicker reinforced, the cost is higher, and in the concrete bottom plate, due to the diameter of reinforced is too large, the thickness of the bottom plate needs to be thicker to meet the requirement of reinforced protection layer, cannot be made into ultra-thin treatment. Even in the thin floor structure, when the diameter of web is larger, if the web does not implement flat, due to the limited space height of upper chord and concrete layer, it is difficult to pass through the pipeline in the cast-in-place layer, and the connection reliability of web and upper chord is also affected. Another pain point is that due to the limited face stiffness of reinforced web, it is set to space stereo triangular truss, that is, two groups of web reinforced at a certain angle need to be set, which further increases the amount of reinforced of floor truss. Since the reinforced web does not participate in stress after the formation of floor, it is relatively wasteful. Using steel pipe, under the same amount, can obtain larger face stiffness, so single-row inclined web can be used. For this reason, the application number: CN202222391947.2 proposes a frame for assembled floor and assembled truss floor, which increases the fit of the connection between the web and the upper chord by making the top and bottom of the adjacent web flat, but making the web flat will affect the structural strength of the web, and the combination degree between the frame and the bottom plate needs to be improved. SUMMARY

[0003] In order to improve the structural strength of the frame of the prefabricated floor and the combination degree of the component and the bottom plate, the utility model provides a frame for assembled floor, which comprises: upper chord rod, web; the upper chord rod is a round pipe or a square pipe, and a plurality of mounting holes are uniformly distributed along the axial direction at the lower part of the upper chord rod; the web is a whole wave-shaped round pipe or square pipe formed by multiple bending, the wave crest part of the web is inserted into the mounting hole and abuts against the inner wall of the upper chord rod, and the wave trough part of the web is provided with a through hole perpendicular to the plane of the web, and a short reinforcing bar is inserted into each through hole.

[0004] Preferably, the upper chord is arranged on the inner side of the strip-shaped concrete rib upper chord, the cross section of the concrete rib upper chord is inverted U-shaped, the mounting hole is located in the inner side area of the concrete rib upper chord, and the inner side of the upper chord rod and the inner side area of the concrete rib upper chord are filled with concrete.

[0005] Preferably, the two lower edges of the concrete ribbed upper chord are provided with a plurality of steel bar slots uniformly distributed along the length direction thereof.

[0006] Preferably, the angle of each bending of the web is 60° or 90°, the outer diameter of the web is smaller than the inner diameter of the upper chord, and the web and the upper chord and the short bar are fixed by welding.

[0007] Preferably, the application further provides a prefabricated truss floor, which comprises the prefabricated floor frame and the bottom plate as described above, the trough part of the web and the short bar are embedded in the bottom plate, the bottom plate is provided with transverse and longitudinal steel bars, the inner side of the concrete ribbed upper chord is provided with longitudinal steel bars, and the steel bar slots are provided with transverse steel bars.

[0008] The whole pipe is bent to form the web, the peak part of the web is inserted into the mounting hole of the upper chord, the trough part is provided with the transverse short bar and is embedded in the concrete bottom plate, the upper chord is arranged in the inner side area of the concrete ribbed upper chord and is filled with concrete to form the concrete rib, the structure is simplified, and the structural strength of the prefabricated floor frame and the combination degree of the component and the bottom plate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0010] Figure 1 It is the perspective view of the utility model.

[0011] Figure 2 It is the side view of the utility model.

[0012] Figure 3 It is the front view of the utility model.

[0013] Figure 4 It is the structural schematic diagram of the upper chord.

[0014] In the drawing: 1, upper chord; 2, web; 3, short bar; 4, concrete ribbed upper chord; 5, steel bar slot; 6, bottom plate; 11, mounting hole. DETAILED DESCRIPTION

[0015] Each device (the part without specific structure) selected in the application is a general standard part or a part known by those skilled in the art, and its structure and principle can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0016] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0017] In the description of the present application, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0018] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some communication interfaces, devices or units, and can be electrical, mechanical or other forms.

[0019] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0020] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. Embodiment 1

[0021] As Figures 1-4As shown, the utility model discloses the frame for fabricated floor, its structure includes: upper chord 1, web 2, upper chord 1 is the circular tube, and its lower part is equipped with a plurality of installation hole 11 that is evenly distributed along the axial direction, web 2 is a whole, and the corrugated circular tube that is formed by bending multiple times, the structural strength of the web 2 that is formed after integrated material processing is greater than the web 2 that is formed by splicing multiple, and its bending place also does not have the flattening treatment, and its shear strength is also stronger, and the wave crest part of web 2 is inserted in installation hole 11 and leans against the inner wall of upper chord 1, and the wave trough part is equipped with the through hole that is perpendicular to the plane where web 2 is, and short muscle 3 is inserted in each through hole.

[0022] More specifically, the upper chord is arranged on the inner side of strip-shaped concrete rib upper chord 4, the section of concrete rib upper chord 4 is inverted U-shaped, the installation hole 11 is located in the inner side area of the concrete rib upper chord 4, and the inner side area of the upper chord 1 and the inner side area of the concrete rib upper chord 4 are filled with concrete, so that the combination of the concrete rib upper chord 4 and the upper chord 1 and the combination of the upper chord 1 and the web muscle are more compact.

[0023] More specifically, the lower edge of the two sides of the concrete rib upper chord 4 is equipped with a plurality of steel bar grooves 5 that are evenly distributed along the length direction.

[0024] More specifically, the angle of each bending place of the web 2 is 90°, the outer diameter of the web 2 is less than the inner diameter of the upper chord 1, the web 2 and the upper chord 1 and the short muscle 3 are fixed by welding, and the gap of the combination part of the web 2 and the upper chord 1 is filled with welding material when welding. Embodiment 2

[0025] The utility model also proposes a kind of fabricated truss floor, including the frame for fabricated floor described in embodiment 1, bottom plate 6;Wave trough part of web 2 and short muscle 3 are embedded in bottom plate 6, increase the contact area of web 2 and bottom plate 6, prevent falling off, and bottom plate 6 is equipped with horizontal and longitudinal steel bars;Longitudinal steel bar is equipped in the inner side of concrete rib upper chord 4, and horizontal steel bar is equipped in steel bar groove 5.

[0026] The utility model inserts the wave crest part of whole pipe piece into the installation hole of upper chord and installs horizontal short muscle in wave trough part, and embeds into concrete bottom plate, and upper chord is arranged in the inner side area of concrete rib upper chord and fills concrete to form concrete rib, and the utility model structure is simplified, and the structural strength of the frame of prefabricated floor and the combination degree of component and bottom plate are improved.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated floor frame, characterized by: include: Upper chord and web; the upper chord is a round tube or a square tube, and its lower part is provided with a plurality of mounting holes evenly distributed along the axial direction; the web is an integral, wavy round tube or square tube formed by multiple bendings, the crest part of which is inserted into the mounting hole and abuts against the inner wall of the upper chord, and the trough part is provided with a through hole perpendicular to the plane of the web, and short reinforcement is inserted into each through hole.

2. The assembled floor frame according to claim 1, characterized in that: The upper chord is arranged on the inner side of the upper chord of the strip-shaped concrete rib, the cross section of the upper chord of the concrete rib is an inverted U shape, the mounting hole is located in the inner area of ​​the upper chord of the concrete rib, and the inner side of the upper chord rod and the inner area of ​​the upper chord of the concrete rib are filled with concrete.

3. The assembled floor frame according to claim 2, characterized in that: A plurality of steel bar grooves evenly distributed along the length direction are provided on the lower sides of the upper chord of the concrete rib.

4. The assembled floor frame according to claim 3, characterized in that: The angle of each bending part of the web member is 60° or 90°, the outer diameter of the web member is smaller than the inner diameter of the upper chord member, and the web member, the upper chord member and the short rib are fixed by welding.

5. An assembled truss floor, characterized by: It comprises the frame and base plate for prefabricated floor slabs as described in any one of claims 1 to 4; the trough part of the web member and the short reinforcement are buried in the base plate, and the base plate is provided with transverse and longitudinal reinforcements; the inner side of the upper chord of the concrete rib is provided with longitudinal reinforcements, and the reinforcement groove is provided with transverse reinforcements.

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