US1791897A

US1791897A - Beam connection

Info

Publication number: US1791897A
Application number: US227153A
Authority: US
Inventors: Martin G Hyde; Gottlieb R Magney
Original assignee: LEON E ARNAL; WILBUR H TUSLER
Current assignee: LEON E ARNAL; WILBUR H TUSLER
Priority date: 1927-10-19
Filing date: 1927-10-19
Publication date: 1931-02-10
Anticipated expiration: 1948-02-10

Description

Feb. l0, 1931. M. G. HYDE ET AL BEAM CONNECTION Filed Oct. 19, 1.927

2 Sheets-Sheet l oooooG/- OOOOO OOOOO OOOOO OOO Feb. l0, 1931. M. G. HYDE ET AL BEAM CONNECT I ON 2 Sheets-Sheet 2 Filed Oct. 19, 1927 Patented Feb; 10, 1931 avesse? unirse srares earner orales MARTIN Gr. HYDE AND GO'ITIIEB R. MAGNEX', OF MINNEAPOLIS, MINNESOTA, AS-

SIGNORS F lONE-FOURTH TO VIIJB TUSLEB AND ONE-FOURTH T0 LEON E.

ARNAL, BOTI-I 0F MINNEAPOLIS, MINNESOTA BEAM CONNECTION This invention relates to a beam connection for use in building structures such as steel buildings, and the same is applicable wherever a load carrying beam is connected to a vertical support or column. -In all bea is and girders under load there exists a bending moment or couple which resists the external forces causing bending in the beam or girder. It is desirable to develop a couple in the connections of a beam or` girder which Will be of equal magnitude with the couple in the beam, or as large as the bending moment requires. As the value Aof the couple in a beam connection depends upon the rivets, bolts or fastening means connecting it to its support or column, 1t is necessary that these rivets have a value that will develop a resisting moment equal to the bending moment in the beam.

It is an object of this invention, therefore, to provide a beam connection comprising a bea-1n formed as an I-beam, connected to its column or support by members including a pair of angle members secured t-o the top flange and web of said l-beam adjacent its connected end., whereby the necessary resisting moment may be obtained.

It is a further object of the invention to provide a beam connection comprisingV a beam having the form of an I-beam, members connected to the web of said beam for connecting the same to its support or column, rivets or bolts extending throughsaid members and said web together with angle members secured beneath and to thetop flange of said beam and to said members, and the web of said beam by some of the rivets or bolts connectingsaid members to said web.

It is another object of the invention to provide a beam connection comprising a beam in the form of an I-beam, adapted to be connected at one end to a column and for this purpose having a pair of vertical angles secured thereto with one side respectively connected to the web of said beam and a pair of angle members disposed at each side of said beamand secured to the upperi'lange thereof by rivets or bolts, said angle members having their other sides parallel to the web of said beam and engaging'said lirst Application filed October 19, `1927. Serial No. 227,153.

mentioned angles and secured thereto and to the web by some of the rivets or bolts which secure said first mentioned angles to said beam. l Y

It is still another object of the invention to construct a beam connection such as set forth in the preceding paragraph, an angle member also being provided extendingY transversely of said -beam above lthe top flange thereof and having a vertical flange projecting above said flange adapted to be connected to the column or support of the beam, said angle member being connected't-o aid top flange by some of the rivets conneet-ing said second mentioned angle members to sai-d beam. y

It is still another object of the invention to provide a beam connection comprising a beam in the form of an AI-beam having a plate disposed beneath the end thereof to the sides of which a pair of vertically eX-V tending angle members are riveted, said angle members extending along the web of said beam, plates disposed between said angle members and said web, rivets eXtending through said angles, plates and web together with a pair of angle members disposed in engagement with the under side of thpe top Piange of said beam and with the sides or Vsaid'angle members, and secured to said fiangeby rivets and t-o said angle members and web by some-of the rivets extending thrpugh. said angle members, plates and we These and other objects and advantages of the invention will be fully set forth in the foliowing description, made in connection with the accompanying drawings, in which like reference characters refer to similar parts throughout the several views and in whichz- Y lbig. l is a view in side elevation of the conf nection, a. portionV thereof being broken away and other parts being shown in vertical section; i i

Fig. 2 is a view in front elevation as seen,` from the left of Fig. l Y

lFig. 3 is a top plan view of the connection;

Fig. 4 is a horizontal section taken on line section taken on line Q5--5 of Fig. 1.

Referring to the drawings, a beam co-nnection such as used in a steel building is shown, comprising an I-beam 10. Vilhile this beam may be of any desired construction and may be built up ot plates or angles, in the embodiment ot the invention illustrated it is shown as a rolled beam and the same is shown particularly in the form ot a comparatively recent Carnegie beam section made and marketed by the Carnegie Steel Company, as illustrated and described in their hand book entitled Carnegie Beam Sections, 1st edition, published January 1, 1927. In this type ot section the web or" the beam makes a sharp inside right angle with the flanges ot the beam which is ot' uniform thickness. In order to tasten the beam to its support, angles 11 are provided, one oi the sides oi which is respectively riveted to the side ot a plate 12 which is disposed below the beam 1 0, havingl its top edge disposed closely adjacent the bottom ot said beam, said plate as shown being triangular in shape. rllhe other sides of the angles 11 project outwardly .trom plate 12 and these sides are provided with holes 11a adapted to receive rivets or bolts securing the same to a column. The plate 12 is connected to the angles '1 by the rivets 13. The beam 10 has its lower flange 10a cut away adjacent its end and the angles 11 extend along the web of said beam parallel thereto, to a point adjacent the top iiange 10b ot the beam. Plates 14 are disposed between the web ot beam 10 and the sides ot the angles 11. The plates 14 entend from the bottom ot the beam 10 to adjacent the top flange 10b there of., T he plates 14, angles 11 and the web of said beam are connected by the rivets 15. Another pair of angle members 16 is provided, which members may be formed by cutting a standard channel, bending a plate, or may be out from standard angle members. Said angle members 16 have one ot their flanges 16a in engagement with the under side ot flange 10?) of beam 10 and connected to said -tlange by the rivets 17. The ilanges 16 have their other sides 165 extending parallel4 to web 10 and in engagement with the outer sides orn the angles 11 and rivets 18 connect the

members

11 and 16, plates 14 and the web of beam 10. The members 16 extend inwardly quite a distance along the top web 10b from the angles 11 and said members are shown as having an inclined edge so that their inner portion is triangular. The sides of the members 16 parallel to the web ot beam 10 are spaced theretrom as shown in Figs. 4 and 5, and spacing thimbles 19 are disposed between said sides and web of beam 10, rivets 20 eXtendin g through members 16, thimbles 19 and the web of beam 10 and securing the same together. Another angle member 21 is disposed on top of flange 10b and extends transversely thereof, said angle having its side in contact with said dange connected thereto and to the side oi the member 16 by the rivets 22. The angle 21 has a vertical tiange projecting upwardly trom flange 10b, the outer surface of which is shown as substantially iiush with the outwardly extending sides of the angles 11, and provided with holes 21o adapted to receive rivets or bolts to secure said angles to a col umn. jingle members 23 are provided, having their sides engaging the sides of plate 12 and secured thereto by the rivets 24 and having their other sides engaging the bottom et ilange 10a and secured thereto by the rivets A pair ot angle members 26 are also provided, disposed along the inclined edge of the plate 12 and have one of their sides disposed against said plate and connected thereto by the rivets 2, the other sides ot said angles projecting outwardly from plate 12.

In the described structure it will be seen that tho desired value of the bending moment resisting the load on beam 1() will be determined by the rivets or bolts in the holes 11a which secure the beam to the column. rlhe plate 12 is made of the proper thickness to give the necessary double shear value to the rivets 13. For the upper arm of the re` sisting couple, the rivets 15 connect angles 11 to the web ot beam 10, which web is coinparatively tiin. These rivets also pass through the two plates 14. The combination ot the plates 14 and said thin web reduces the value of the rivets 15 so that it is not possible to develop the proper moment without additional rivets. ln the present invenn tion this is accomplished by the provision of the angle members 16. rlhe rivets 1S are given a value ot double shear by the angle members 16 an additional reduced bearing value on the web of beam 10. The rivets 25 develop a horivontal shear at their location in the connection and this shear is transferred to the plate 12 by the angles 23. From the above description it is seen that applicant has provided a very effective beam connection and one that easily made from standard structural parts. llhe principal teatue of the invention is the angle members 16. These angles, in connection with the

rivets

17 and 18, serve to develop the required resisting moment in the connec tion. The angle 21 in connection with the angle 16 together with its rivets 22 materially increase the value ot the resisting moment in the connection, and adds to the lateral stitlness and rigidity of the connection. The

members

16 and 21 with their connectin rivets, together with the rivets 15 and the parts below the same, are specially useful in developing the reverse bending moments which occur in wind bracing beams and girdw lll) ers of buildings. As above stated, the invention is particularly applicable to the Carnegie beam section mentioned, for the reason that the angle members 16 can be placed fiat against the under surface of the flange which extends in a plane at right angles to the web. The angle member 16, of course, could be applied to any type of I-beam secn tion, but in the standard sections would have to be formed somewhat to engage with the sloped surface of the flanges. ily be seen that the angle member 16 can be made by cutting in two a standard channel, thus obtaining two of the angle meinbers.V rlhe angle members 16 will usually be made of standard angles or cut members as stated, but may, of course, be made from plates bent speciallyfor the purpose, if desired.. The effectiveness of the structure has been amply demonstrated and the same is being installed in actual buildings.

While the term rivets is used in the specification and claims to define the connecting means of the various members, it will be understood that bolts or other equivalent connecting means are included in the scope of the invention.

lt will, of course, be understood Vthat various changes may be made in the form, details, arrangement and proportions of' the parts, without departing from the scope of applicants invention, which, generally stated, consists in a device capable of carrying ont the objects above set forth, in the novel parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is 1. A beam connection having in combination, a substantially horizontally disposed -beam, vertically disposed angles at one end thereof having one of their flanges respectively extending along the side of the web of said l-beam, rivets connecting said flanges and web, said angles having portions projecting outwardly of said beam and adapted to be connected to a column, a second pair of angle members disposed respectivelyl at each side of said beam each having one of its flanges disposed against the under side of the top flange of said beam and extending inwardly therealong from said first mentioned angles, rivets securing said flange to the top flange of said beam, said second angle members each having its other flange engaging the sides of said flanges of said first mentioned angles, rivets connecting said latter flanges to said flanges of said first mentioned angles, and the web ofsaid beam, spacing means disposed between the lirst mentioned flanges of said second mentioned anglemem-V bers and rivets connecting said flanges spacingV members and the web of said beam.

2. A beam connection having in combination, a substantially horizontally disposed l-beam having its lower flange cut away Vad- It will readjacent its end, a plate below said loaver flange disposed substantially in the plane of the web of said beam, a pair of angles disposed respectively at each side of said plate, rivets connecting one of the flanges of said angles to said plate, the other flanges projecting outwardly from said plate, said angles extending along the sides of the web of said beam, plates disposed between said flanges and said web, rivets connecting said flanges, plates and web,'a second pair of angle members disposed respectively at each side of said beam each having one of its sides eX- tending along said flanges, rivets connecting said latter flanges, the flanges of said first mentioned angles, said plates and the web of said beam, the other sides of said second angle members engaging the under side of the top flange of said beam and extending inwardly therealong from said first mentioned angle members, and rivets connecting said other flange and the top flange of said beam, spac` ing members disposed between said other sides of said second angle members, and the web of said beam and rivets connecting said other flanges and said web and passing through said spacing members.

3. A beam connection comprising a substantially horizontally disposed member having a vertically disposed web and horizontal flanges at either side of said web at its top, vertically disposed angle members at each side of said web4 having one side extending along said web at one end thereof and having their other sides extending away from said web in substantial alinement, rivets securing said members to said web, and angle plates vdisposed respectively at each side of said web, each plate overlying the flange of one of said first mentioned angle members which engages the web, and secured thereto by rivets which pass through said flange and web, and also having a horizontal 1flange disposed belowV the horizontal flange at the top of said web and connected thereto by rivets, said last mentioned angle members having edges extending diagonally from the end engaging said horizontal flange to the portion overlying the flange of said first mentioned llll angles and being further connected to said web by rivets extending through said web,

spacing members being disposed between aid web and said last mentioned angle memers.

l li. A beam connection comprising a snbstantially horizontally disposed Lbeam, comparatively narrow, plates extending vertically along each side of the web of said beam at the ends thereof, a vertically disposed angle member for each of said plates having one' of its flanges extending parallel to and in engagement with each of said plates, said angle members having their other flanges oppositely directed outwardly from said plates and beam, rivets connecting said plates, Web and first mentioned flanges adjacent the bottom of said beam, the bottom ange of said beam being eut away, a plate disposed at the Outer side of each of said angle members parallel to and engaging the under side of the Web of said beam, rivets Connecting; said web, irst mentioned plates, fianges of said angle members and said last mentioned plates, rivets connecting the tlanges of said last mentioned plates and the Web of said beam and filler pieces being inserted between said last mentioned plates and the web of said beam.

In testimony whereof We aix our signatures.

MARTIN G. HYDE. GOTTLIEB R. MAGNEY.