JP2000356005A - Beam member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the strength by forming a plurality of vertical recessed/ projecting parts in the longitudinal direction of webs and welding their top/ bottom ends to prescribed portions of a pair of top/bottom C-shaped flanges. SOLUTION: This beam member 10 is constituted by arranging webs 16 between flanges 12, 14. A plurality of vertical trapezoidal projections are alternately provided in the longitudinal front/rear faces of the webs 16 and the flanges 12, 14 are formed of the central web parts, the leg parts, and free ends formed by bending their ends inward into C-shaped cross section. In assembling the member 10, the flat outer parts of the trapezoidal projections of the webs 16 are welded to the free ends of the legs of the flanges 12, 14 and the top/ bottom edges of the webs 16 are welded to the central webs of the flanges 12, 14. This constitution can form the beam member of relatively thin members and improve the rigidity and the withstand load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to span members or beam members, and more particularly, to a pair of opposed C-shaped flanges, a web that has been turned for added strength, and a structural beam member. And an end plate for protecting and interconnecting the beam members.

[0002]

BACKGROUND OF THE INVENTION Beam members are widely used in the building industry, not only as permanent building elements, but also as scaffolding materials, concrete frameworks, and similar building formwork components. Examples of beam members used in the mold include the Soldier disclosed in U.S. Pat. No. 4,964,256. Here, the soldier is used as an upright horizontal structural member, an inclined support, a pillar, a strut, a crossbar for raising a belly, and the like. It is also used as a lightweight steel beam member used as an indicator material for floorboards or dams as part of a concrete forming system, as described in US Pat. No. 5,307,601. These beam members are also used as metal studs and other building elements in place of certain known building materials.

[0003] Such beam members are formed in a variety of shapes and designs, as well as in a variety of materials. Due to the commonly used roll forming technology, it is common to use beam members formed of metal sheet material formed in principle by roll forming, which is considerably lighter and also produces stronger beam members. Has become. One way to achieve the desired efficiency and reduce the cost of the beam members is achieved through the use of thin sheet metal materials in the roll forming process, where the resulting beam members have the desired strength and other properties. Designed to win. The thinner the sheet material, the less expensive, easy to roll, cheaper, and lighter in weight.

[0004] With respect to the structural formwork, the beam member generally rests on top of a support post (Monopost ™). The beam members have various lengths,
Usually the beam members must be interconnected to extend to the desired length. Typically, this interconnection is provided by a collar that locks around the overlapped ends of the two beams. Since this connection is usually made at a weak point, this interconnecting point generally requires a separate support post. Overlapping beam members can help mitigate this problem, but requires the use of more or longer beam members. Further, similar problems occur with beam members used in permanent building structures. Generally, this interconnection system introduces an undesirable level of complexity, requires more support posts, and this interconnection point constitutes a potential point of failure in the support system.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a beam member having a pair of longitudinally extending, opposed flanges, each of the pair of flanges each having a generally C-shaped transverse direction. It has a central web portion and a pair of inwardly extending leg portions having a cross section.
The longitudinally extending web member is sandwiched between a pair of opposed flanges and has a pair of longitudinally extending sides. Each of these sides is in contact engagement along a corresponding one of the central web portions of the pair of opposed flanges. The web member has one or more alternating laterally projecting pivot sections that extend transversely across the width or height of the web. These protrusions extend laterally adjacent to each other along the site of the leg portions of the corresponding opposing pair of flanges. Both sides of the web are welded to the flange at the central web portion, and the protrusions of the web are welded to adjacent portions of the leg portions of the flange. End plates are secured to opposing flanges and to a web member sandwiched between both flanges, providing an excellent means of interconnecting the beam members. The beam member thus formed is made from a relatively thin sheet material and yet has considerable stiffness and load-carrying capacity before being crushed.

[0006] It is an object of the present invention to provide a beam member for use in a concrete forming apparatus and even as a building element that forms a permanent part of a constructed building.

It is another object of the present invention to provide a beam member having a swivel web roll formed from a sheet of metal material and having improved stiffness and load bearing resistance.

[0008] Still another object of the present invention is that the side cross section is U-shaped.
It is to provide a beam member having a stepped web welded to a pair of opposed flanges having a shape or C-shape, thereby providing a beam member with improved stiffness and load-bearing resistance.

It is a further object of the present invention to provide a metal beam member having a flange that can be used in place of building material of a predetermined size and into which a screw or a manual nail can be driven. It is to be.

[0010] Yet another object of the present invention is to provide a beam member that can be easily interconnected with similar beam members.

[0011] These and other objects of the present invention will become apparent from the following description, the accompanying drawings and the appended claims.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1-4, a beam member having a pair of opposed flanges 12, 14 is indicated generally by the numeral 10. FIG. These opposed flanges 1
A web 16 is arranged between 2 and 14. The web 16 has a plurality of alternating transversely extending protrusions, as best shown in FIG. 7, which are formed on the first side of the web 16 at 18a. And these projections extend to the second side of the web 16 at 18b (see FIG. 2).

The flanges 12 and 14 are identical and each include a longitudinally extending central web portion 20 and a pair of leg portions 22, 24, which leg portions are central web portions. It extends inward from both sides of the part 20 (see FIGS. 5 and 6). In the preferred embodiment, the free ends 26, 2
8 are bent so as to face each other,
As a result, the flanges 12 and 14 have substantially C-shaped side cross sections.

The web 16 is formed from a rectangular sheet which is bent along a lateral line perpendicular to its longitudinal axis. The bends, designated 30 in FIG. 8, are alternately bent at intervals in a direction to provide a cross-section of the web portion 16 having at least a rolled or stepped configuration. Here, the projections 18a and 18b extend to both sides of the web 16 (see FIG. 7). In a preferred embodiment, the protrusion 1
8a, 18b are symmetrical in shape and have respective flat outer portions 32a, 32b, which outer portions 32a, 32b are connected to the leg portions 22,
24 are laterally separated by a distance equal to the lateral distance or spacing between the free ends 26 and 28. Accordingly, when assembling the web 16 and the flanges 12, 14, the flanges 12, 14 overlap the longitudinally extending sides of the web 16, and the lateral edges of the web 16 are the central web portions of each of the flanges 12, 14. 20 is a flat outer portion 32 of the protrusion which is flush with
a, 32b are the free ends 2 of the flange leg portions 22, 24.
6, 28 (see FIG. 3).

To complete beam member 10, flanges 12, 14 are preferably welded to web 16. As shown in FIG. 4, the flat outer portion 32a of the projection 18
32b are free ends 26,2 of the flange leg portions 22,24.
8 and the side edges of the web 16 are
Reference numeral 36 denotes the central web portion 20 of 2,14.
Are welded at the positions indicated by. In the assembly thus formed, the stepped web 16 provides a reinforced member with support points such that the load applied to the top flange does not damage the beam member 10. In addition, the inwardly extending leg portions 22, 24 allow welding to the web 16 at points inward of the central web portion 20 to reduce the loose and unrigid dimensions of the compression element, This allows the use of thin metal sheet material in the manufacture of member 10.

In the preferred embodiment, the projection 18
Are formed by alternating bends of about 120 ° with flat portions 32 of length 62.5 mm separated by 73 mm. This results in a stepped web 16 having an outer lateral width of 65 mm. The flanges 12, 14 are 90 ° with a central web section 20 of 89 mm width
Are formed by bent portions, and leg portions 22, 2
4 extends transversely inward by 36 mm and free ends 26, 28 extend laterally inward by 12 mm. As a result, the distance between the opposing free ends is 65 mm.
The web 16 is roll formed from high strength, low alloy sheet steel having a thickness of 0.0598 inches (16 gauge). Flanges 12, 14 are roll formed from high strength, low alloy sheet steel having a thickness of 0.0747 inches (14 gauge). The length of the beam member 10 can be varied, with preferred lengths ranging from 1.2 m to 7.2 m in 0.6 m steps. Beam members 10 having such dimensions can be suitably used for long span applications in garage door headers, window headers, and other residential structures instead of 3.5 inch wide wood. In another embodiment of the present invention, the flange 12,
14 is thick enough to allow the driving of screws or manual nails for attachment of another building material such as wood. The beam members are further intended for use in the concrete forming industry, such as those used to support concrete foam in horizontal forming applications. The beam member of the present invention is generally used as an intermediate support member between other elements of a concrete forming system device.

Although the preferred embodiment has been described as having a web and flange made from a particular sheet material, different thicknesses or other properties of the sheet material may be used depending on the desired performance characteristics of the beam material. Further, in the preferred embodiment, the projections or steps of the web are comprised of straight or flat sections formed by a series of bends across the entire transverse width of the sheet; A roll-up configuration could be used.
Further, while it is desirable to provide one or more wraps less than the full length, in a preferred embodiment, the wraps extend over the entire length of the web. Further, in the preferred embodiment, a flange having a C-shape is generally used, but a flange having a U-shaped cross section may be used even if the strength is slightly reduced or the material cost is slightly increased. There will be.

FIGS. 9 to 12 disclose another embodiment of the present invention. In particular, FIGS. 12a and 12b show a beam member 50 including an end plate 52 (see FIG. 9) having a circular perforation 51. FIG. The beam member 50 further includes a pair of opposed flanges 54 having recesses. The flange 54 is generally the flange 12 shown in FIG.
Works in the same way as. The flange 54 has a central web portion 60 extending longitudinally and a pair of interconnected leg portions 58, 62 extending inward from opposite sides of the central web portion 60. Further, free ends 56, 64 are provided which extend away from the leg portions 58, 62 and bend toward each other. Thus, the flange 54 generally has a C-shaped cross section in the transverse direction.

Compared to the free ends 26, 28 of the flange 12, the free ends 56, 64 of the flange 54 are
8, 62 are recessed from the top. 10 and 11
As better shown, the recesses 66 form a shelf for receiving the end plate 52. In other words, the free ends 26, 28 of the flange 12 extend to abut against the leg portions 22, 24, while the free ends 56, 64 of the flange 54 correspond to the leg portions 58. , 62 do not extend. 12a and 12b, this shape is indicated by dashed lines, and the free end 56,
Reference numeral 64 extends below the end plate 52 (see the broken line).

According to the preferred embodiment, the end plate 52 rests on the legs formed by the recessed free ends 56, 64, and the recessed portion 66 is deep enough to receive half the thickness of the end plate 52. It is spreading. This allows the end plate 52 to be seated firmly in the flange 54 while at the same time allowing the end plate 52 to project well over the flange 54 to achieve a secure attachment by fillet weld 68 (see FIG. 12). I have. End plate 52 is secured to both flange 54 and web 16. The fillet weld 68 connects the end plate 52 to the flange 54 along the entire length of the intersection of the two elements.
It is stuck to. Further, an internal weld secures the end plate 52 to the web 16. FIG. 12 shows the direction of the web 16 lying below by broken lines. FIG.
In the direction shown in FIG. 2 a and FIG. 12 b, the web 16 lies below the end plate 52. An intermediate fillet weld along the abutment surface lying within end plate 52 and web 16 secures the element in place.

FIG. 13 shows an end plate 52 and a flange 54.
2 shows a cross section of the beam plate 50 showing an intermediate plane between the beam plate 50 and the web 16. The end surface 52 is a flange 54
Rests on the legs formed by the opposed concave free ends 56, 64 of the first embodiment. This recess is preferably about half the thickness of the end plate 52 so that the end plate 52
It protrudes upward. This provides sufficient area for a better bond weld 68 and also allows the end plate 52 to seat within the flange 54. Thus, the present invention can achieve a complete, short connection between the end plate 52 and the flange 54.

The end plate 52 has a length along the longitudinal axis of about 224 mm, a width along the transverse axis of about 84 mm, and a thickness in the thickness direction of about 7 mm. Both perforations 51 are separated by about 150 mm and are located approximately in the center. These perforations 51 are approximately 20 mm in diameter
It is. As will be appreciated by those skilled in the art, the exact dimensions and materials described herein may be varied without departing from the scope of the invention. Moreover, the drawings disclosed herein are not necessarily to scale, and may be exaggerated appropriately to readily depict features of the present invention. For example, the recess 66 shown in FIG. 11 is exaggerated for illustration purposes.

The advantage of this embodiment is that the beam member 50 can be connected to other beam members 50, for example, by circular perforations 5 in the end plate 52.
1 can be interconnected by means of bolts which are fixed via 1. This eliminates the need for conventional lap joints and locking collars. Beam members 50 provide an excellent means of end connection by providing a complete, short connection between each beam member.
In addition, the end plate 52 can be used to move the beam member 50 from the normal wear and tear damage that occurs at the end of the beam member 50 when the beam member 50 is moved, fixed, or removed.
0 free end is protected.

Although the present invention has been described with reference to a preferred embodiment, it should not be understood that it is limited thereto. This is because various modifications and improvements can be made within the intended scope of the present invention, which is limited by the description of the appended claims.

[Brief description of the drawings]

FIG. 1 is an elevational side view of a beam member according to the present invention.

FIG. 2 is a top plan view of the beam member shown in FIG.

FIG. 3 is an end view of the beam member shown in FIG. 1;

FIG. 4 is an enlarged detailed view showing a state where a web of the beam member is welded to a flange member of the beam member.

FIG. 5 is a top plan view of the flange member of the present invention.

FIG. 6 is an end view of the flange member of FIG. 5;

FIG. 7 is a top plan view of the web of the present invention.

FIG. 8 is a side elevation view of the web of FIG. 7;

FIG. 9 is a perspective view of an end plate of another beam member.

FIG. 10 is a top plan view of another flange member provided with a planing line.

FIG. 11 is a partial perspective view of another flange member of FIG. 10;

12a and 12b are end views of another beam member.

FIG. 13 is a cross-sectional view of another beam member of FIG. 12b, taken along line 13-13 shown in FIG. 12b.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E163 DA02 FA12 FA17 FB01 FB21 FB31 FF01

Claims (11)

[Claims] 1. A beam member comprising: a) a longitudinally extending and opposed beam having a central web portion and a pair of inwardly extending leg portions on opposite sides of the central web portion. A) a pair of flanges that are sandwiched between the pair of opposed flanges and are longitudinally engaged in contact along one corresponding central web portion of the pair of opposed flanges; A longitudinally extending web portion having a pair of extending sides; and c) adjacent to a corresponding opposing pair of leg portions of the flange extending laterally. Said web portion having one or more pivoted portions having alternating protrusions along said portion; and d) connecting said sides of said web portion to said central web of said flange. Stick to part And means for securing the protrusion to the adjacent leg portion of the flange; e) secured to the opposing flange and the web portion, thereby structurally protecting the beam members and interconnecting the beam members. An end plate providing the ability to connect; a beam member comprising: 2. The beam member according to claim 1, wherein said inwardly extending leg portion of said opposing flange is concave and forms a shelf for receiving said end plate. 3. The beam member according to claim 2, wherein said inwardly extending leg portion of said opposing flange is recessed by an amount equal to half the thickness of said end plate. 4. The beam member according to claim 1, wherein the web member and the flange are coextensive in length. 5. The beam member according to claim 1, wherein the web member is formed from a metal sheet, and the flange is formed from a metal sheet. 6. The beam member according to claim 5, wherein the metal sheet forming the web member has characteristics different from those of the metal sheet forming the flange. 7. The beam member according to claim 6, wherein the metal sheet forming the web member has a thickness different from the thickness of the metal sheet forming the flange. 8. The beam member according to claim 1, wherein said means for securing said web member to said flange is welding. 9. The beam member according to claim 1, wherein the means for securing the protrusion to the leg portion is a weld joining an adjacent portion of the protrusion and the leg portion. 10. The beam member according to claim 1, wherein the flange is penetrable by a manual fixture. 11. A beam member, comprising: a) a pair of opposed generally C-shaped flanges, each flange comprising: b) a pair of opposed side portions. An extending central web portion; c) a pair of leg portions each extending inward from a corresponding one of the opposite side portions of the central web portion; d) a bent portion of each leg portion; e) an upright web having a pair of opposing side portions sandwiched between opposing flanges and in contact engagement with a corresponding one of the central web portions of said flanges; One or more pivoting portions of the web consisting of alternating alternating protrusions, the alternating pairs of protrusions spanning substantially the distance between each pair of leg portions of each flange. G) the upright web Means for securing said side portion to a corresponding portion of the central web portion of said flange and means for securing said protrusion to said leg portion; h) secured to said opposed flange and said web member; An end plate that structurally protects the beam member and provides for the possibility of interconnecting the beam members, wherein the inwardly extending leg portion of the opposing flange is the end plate. Said end plate being recessed by an amount equal to half the thickness of said end plate, thereby forming a shelf for receiving said end plate.