Prefabricated corrugated web composite structure

Abstract

The present invention relates to a prefabricated corrugated web composite structure, which includes a corrugated web reinforced beam. The corrugated web reinforced beam includes an upper plate, a lower plate and at least two groups of corrugated webs; the at least two groups of corrugated webs are arranged parallel to each other between the upper plate and the lower plate, and a filling cavity is formed between two adjacent corrugated webs. An intensifying filler is filled in at least one formed filling cavity; a plurality of connection holes are formed in at least one of the upper and lower plates. A connecting pin is inserted into the connection hole, and its inner end extends into the filling cavity and is consolidated with the filled filler to form an integral body. The outer end of the connecting pin extends out of the plate surface and can be connected to other components. The present invention uses two or more corrugated plates as webs to strengthen the connection with the upper and lower plates, and fills the strengthening filler between two adjacent corrugated webs, so as to achieve the design of a multi-layer corrugated web and a plate-concrete composite web beam, and improve the strength, stiffness, stability and ductility performance of the corrugated web beam (column).

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit support, in particular to a plug-in corrugated steel sheet pile. Background Art

[0002] Corrugated web components originated in Europe and the United States in the 1980s. They are also used in portal steel frames, large-span spaces, and multi-story steel structures in China.

[0003] By replacing flat webs with corrugated webs, corrugated web members achieve higher local buckling capacity and out-of-plane stiffness, while also improving fatigue resistance. Under load, the shear force on a corrugated web member is borne almost entirely by the web, while the bending moment is borne almost entirely by the upper and lower plates.

[0004] A common corrugated web member is the corrugated web H-beam, which uses a single piece of corrugated sheet as the web. The web is perpendicular to the upper and lower plates, which are welded to the web. While the member's local buckling capacity, out-of-plane stiffness, and fatigue resistance are improved compared to ordinary H-beams, it still suffers from inherent shortcomings in overall strength and resistance to bending deformation. Furthermore, there's no modular connection method between ordinary corrugated web H-beams and other building components, preventing rapid assembly and expanded use. Summary of the Invention

[0005] The present invention proposes an assembled corrugated web composite structure to overcome the problems in the prior art of insufficient strength of corrugated web components and inconvenience in connecting corrugated web beams with other building components.

[0006] To achieve the above object, the technical solution proposed by the present invention is:

[0007] The assembled corrugated web composite structure includes a corrugated web reinforcement beam, wherein the corrugated web reinforcement beam includes an upper plate, a lower plate and at least two groups of corrugated webs; the at least two groups of corrugated webs are arranged parallel to each other between the upper plate and the lower plate, and a filling cavity is formed between two adjacent corrugated webs. A filler for increasing strength is filled in at least one of the formed filling cavities.

[0008] Furthermore, a plurality of connecting holes are opened on at least one of the upper and lower plates, and the connecting pins are inserted into the connecting holes. The inner ends of the connecting pins extend into the filling cavity and are solidified to form a whole with the filling material. The outer ends of the connecting pins extend out of the plate surface and can be connected to other components.

[0009] Furthermore, a plurality of groups of the corrugated web reinforcement beams are sequentially connected through the connection holes and connection pins on their upper plates and lower plates to form a corrugated web reinforcement beam system structure.

[0010] Further, it further includes a connecting plate, and a plurality of columns of insertion holes are formed in the connecting plate. The connecting pins on the upper plate and the lower plate of the corrugated web stiffening beam are inserted into the insertion holes of the connecting plate to form a corrugated web stiffening beam plate structure.

[0011] Further, a plurality of rows of pin holes are provided on the upper plate or the lower plate, and the connecting pins inserted into the plurality of rows of pin holes form a rectangular array of connecting pins.

[0012] Further, the corrugated web is formed by fillet welding with the upper plate and the lower plate.

[0013] Further, a plurality of groups of triangular stiffeners are welded between the corrugated web and the upper plate and the lower plate.

[0014] Further, the filler includes one or several combinations of cement mortar, foamed concrete, fiber reinforced concrete or high-strength rapid-hardening concrete.

[0015] Further, the waveform of the corrugated web is any one or several combinations of sine wave form, triangular corrugation form, trapezoidal corrugation form, right-angle corrugation form.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention uses two or more corrugated plates as webs to strengthen the connection with the upper and lower plates, and fills the strengthening filler between two adjacent corrugated webs, so as to achieve the design of multi-layer corrugated webs and plate-concrete composite web beams, and improve the strength, stiffness, stability and ductility performance of the corrugated web beam (column).

[0018] 2. Through the design of the insertion units on the upper and lower plates of the corrugated web beam structure of the present invention, the corrugated web beam of the present invention can be modularly connected to beams, plates or other building units, and the connection is firm and convenient, greatly improving the application range and construction speed of the corrugated web beam, and having strong practical and economic effects. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0020] Figure 2 is Figure 1 the cross-sectional schematic diagram of;

[0021] Figure 3 is a schematic structural diagram of Embodiment 2 of the present invention;

[0022] Figure 4 is Figure 3 the cross-sectional schematic diagram of;

[0023] Figure 5 is a schematic structural diagram of Embodiment 3 of the present invention;

[0024] Figure 6 is Figure 5 a schematic cross-sectional view of;

[0025] Figure 7 is a schematic view of the corrugated shape of the corrugated web of the present invention;

[0026] In the figure, 1 - upper plate, 2 - lower plate, 3 - corrugated web, 4 - filling cavity, 5 - filler, 6 - triangular stiffener, 7 - connection hole, 8 - connection pin, 9 - connection plate. Specific embodiments

[0027] For ease of understanding of the present invention, the present invention will be described more fully hereinafter with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0028] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0029] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] The basic idea of the present invention is:

[0031] First, on the basis of the original corrugated web H-shaped beam with a single corrugated plate as the web, two or more corrugated plates are used as the web for strengthened connection, and a strengthened filler is filled between adjacent two corrugated webs, so as to achieve the design of a multi-layer corrugated web and a plate-concrete composite web beam.

[0032] Second, through the design of the plug-in units on the upper and lower plates of the corrugated web beam structure, the corrugated web beam of the present invention can be modularly connected to other building units.

[0033] Example 1:

[0034] See Figure 1 and Figure 2 An assembled corrugated web composite structure shown in the figure. In this embodiment, the corrugated web reinforced beam of this composite structure is disclosed. The corrugated web reinforced beam includes an upper plate 1, a lower plate 2 and two groups of corrugated webs 3. The two groups of corrugated webs 3 are of the same size and waveform, and the two groups of corrugated webs 3 are arranged parallel to each other between the upper plate 1 and the lower plate 2, and their connection method is that the corrugated web 3 is formed by fillet welding with the upper plate 1 and the lower plate 2; in other embodiments, a single corrugated web reinforced beam can be composed of three or more groups of corrugated webs arranged parallel to each other between the upper plate 1 and the lower plate 2.

[0035] In order to enhance the overall compressive and flexural performance of the corrugated web reinforced beam, multiple groups of triangular stiffeners 6 are welded between the corrugated web and the upper plate 1 and the lower plate 2. One side wall of the triangular stiffener 6 is welded in the trough of the corrugated web 3, and the other side wall is welded on the end faces of the upper plate 1 and the lower plate 2.

[0036] After the corrugated web reinforced beam is vertically installed, its bottom end is closed, and a filling cavity 4 is formed between two adjacent groups of corrugated webs 3, and a filler 5 for increasing strength can be filled in the filling cavity 4.

[0037] The selection of the filler 5 includes one or several combinations of mortar, foamed concrete, fiber reinforced concrete or high-strength rapid-setting concrete. In this embodiment, the filler 5 is selected as mortar.

[0038] See Figure 7 , the waveform selection of the corrugated web includes any one or several combinations of sine wave form, triangular corrugation form, trapezoidal corrugation form, right-angled corrugation form. In this embodiment, the waveforms of the two groups of corrugated webs are both sine wave forms.

[0039] Embodiment 2:

[0040] See Figure 3 and Figure 4 An assembled corrugated web composite structure shown in the figure, including multiple groups of connected corrugated web reinforced beams, constituting a reinforced beam system structure.

[0041] The structure of a single corrugated web reinforced beam includes an upper plate 1, a lower plate 2 and two groups of corrugated webs 3. The two groups of corrugated webs 3 are of the same size and waveform, and the two groups of corrugated webs 3 are arranged parallel to each other between the upper plate 1 and the lower plate 2, and their connection method is that the corrugated web 3 is formed by fillet welding with the upper plate 1 and the lower plate 2.

[0042] In order to enhance the overall compressive and flexural performance of the corrugated web reinforced beam, multiple groups of triangular stiffeners 6 are welded between the corrugated web and the upper plate 1 and the lower plate 2. One side wall of the triangular stiffener 6 is welded in the trough of the corrugated web 3, and the other side wall is welded on the end faces of the upper plate 1 and the lower plate 2.

[0043] See also Figure 7 The waveform options of the corrugated webs include any one or a combination of sinusoidal wave forms, triangular wave forms, trapezoidal wave forms, and right-angle wave forms. In this embodiment, the waveforms of the two groups of corrugated webs are both sinusoidal wave forms.

[0044] The most obvious difference from implementation 1 is that a number of connecting holes 7 are opened on the upper plate 1 and the lower plate 2, and connecting pins 8 are inserted into these connecting holes 7. Multiple groups of corrugated web reinforcement beams are connected in sequence through the connecting holes 7 and connecting pins 8 on the upper plate 1 and the lower plate 2.

[0045] After the corrugated web reinforcement beams are preliminarily connected in sequence, their bottom ends are closed after being placed vertically, and a filling cavity 4 is formed between two adjacent groups of corrugated webs 3 of a single corrugated web reinforcement beam. The filling cavity 4 can be filled with a filler 5 to increase the strength and fix the connecting pin 8; the two ends of the connecting pin 8 are extended into the filling cavity 4 of the two adjacent groups of corrugated web reinforcement beams and consolidated into one with the filled filler 5, thereby completing the overall fixed connection of multiple groups of corrugated web reinforcement beams.

[0046] The filler 5 may be selected from one or a combination of concrete mortar, foamed concrete, fiber-reinforced concrete, or high-strength rapid-setting concrete. In this embodiment, the filler 5 is fiber-reinforced concrete.

[0047] like Figure 3 As shown, in this embodiment, the connecting pins 8 are arranged in a row on each of the upper plate 1 and the lower plate 2, forming a straight line structure. In other embodiments, the pin holes on the upper plate or the lower plate may be arranged in multiple rows, and the connecting pins are inserted into the pin holes in multiple rows. These connecting pins can form a rectangular array of connecting pins. This rectangular array of connecting pins can be more securely connected to other perforated connectors and can also be connected to the wire mesh system to be cast.

[0048] Example 3:

[0049] See also Figure 5 and Figure 6 Unlike Example 1, this assembled corrugated web composite structure further includes a connecting plate 9 having multiple rows of insertion holes formed therein. Two parallel groups of corrugated web reinforcement beams are arranged. Connecting pins 8 on the upper and lower plates 1 and 2 of the two groups of corrugated web reinforcement beams are inserted into the insertion holes on either side of the connecting plate 9 to form the corrugated web reinforcement beam-plate structure. In other embodiments, multiple groups of corrugated web reinforcement beams may be provided, depending on the situation. These groups of corrugated web reinforcement beams may be arranged in parallel or in a frame-like configuration.

[0050] For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. Prefabricated corrugated web composite structure, characterized in that The invention comprises a corrugated web reinforcement beam, wherein the corrugated web reinforcement beam comprises an upper plate, a lower plate and at least two groups of corrugated webs; the at least two groups of corrugated webs are arranged parallel to each other between the upper plate and the lower plate, a filling cavity is formed between two adjacent corrugated webs, and a filler for increasing strength is filled in at least one of the formed filling cavities; A plurality of connecting holes are formed on at least one of the upper and lower plates. Connecting pins are inserted into the connecting holes. The inner ends of the connecting pins extend into the filling cavity and are solidified with the filling material to form a whole. The outer ends of the connecting pins extend out of the plate surface and can be connected to other components. A plurality of groups of the corrugated web reinforcement beams are sequentially connected through the connection holes and connection pins on the upper and lower plates to form a corrugated web reinforcement beam system structure; It also includes a connecting plate, which is provided with a plurality of rows of plug holes, and the connecting pins on the upper plate and the lower plate of the corrugated web reinforcement beam are inserted into the plug holes of the connecting plate to form a corrugated web reinforcement beam plate structure; The pin holes on the upper plate or the lower plate are arranged in a plurality of rows, and the connecting pins inserted into the pin holes in the plurality of rows form a rectangular array of connecting pins; The corrugated web is formed by fillet welding with the upper plate and the lower plate; A plurality of triangular reinforcement ribs are welded between the corrugated web and the upper plate and the lower plate.

2. The fabricated corrugated web composite structure according to claim 1, wherein, The filler includes one or a combination of concrete mortar, foamed concrete, fiber reinforced concrete or high-strength rapid-setting concrete.

3. The prefabricated corrugated web composite structure according to claim 2, wherein, The waveform of the corrugated web is any one of a sinusoidal wave form, a triangular wave form, a trapezoidal wave form, and a right-angle wave form, or a combination of several of them.

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