US2114902A - Structural steel framing - Google Patents

Description

April 19,1938. A. HENDERSON FRAMING Filed 001;; 17. 1934 STRUCTURAL STEEL .2 Sheets-Sheet l INVENTOR FIIWIIII'DRQiiNNNNN.

O C Q 0 April 19, 1938.

o@iaooooooo El A. HENDERSON STRUCTURAL STEEL FRAMING Filed Oct. 17, 1934 -"1 aofiooofilpoooooooooo 0cm" {@oooEooocoooooo III I oo0@pooooooo'oo 2 Sheets-Sheet 2 [goo o oLQo olgo Patented Apr. 19, 1938 STRUCTURAL STEEL FRAMING Albert Henderson, Pittsburgh, Pa., assignor to William P. Witherow, Pittsburgh, Pa.

7 Application October 17, 1934, Serial No. 748,652

2 Claims. (01. 189-36) Hm STATES PATENT; orrics i Serial No. 721,734, filed April 21, 1934, Structural steel members.

. The object of this invention is to simplify struc: tural steel practice particularly in the field of light load structures so. that these plates and 1.: angles can be shipped perforated and painted by the steel manufacturers to dealers who will assemble and retail these structural members to the builder, thereby eliminating the cost of ordinary shop fabrication, designing, shop .drawings, etc., more fully describedin my said copending application. i

The diameters of the holes in the plates .and

the angles are preferably f and the center to center spacing of the holes is one inch. Thedistance from the center line of the holes in the angle to the corner of said angle is two inches, or twice the center to center spacing of the holes.

Furthermore, the distance between the center lines of parallel rows of holesin theplate is four 30 times the spacing of the holes one way and eight times the spacing of the holes the other way.

A bolt long is used to connect the various members. The thickness of the angles and plates may be so shank without threads is required on the bolt for connecting aplate to two angles, and when but one plate and one angle are connected. together making A," thickness, then a washer A" thick is used to fill out'the unthreaded portion of the bolt. The thread of the 40 bolt is slightly less in diameter than the hole and permits the nut to pull the bolt through, thus assuring a tight fit.

Another object of my invention is to provide means of increasing the strength of these mem- 45 bers by introducing perforated plates between the flange angles or introducing additional close-fit ure 4 is a side View of the 1 bolt; Figures 5 to 22' show a series of structural shapes morefully described in said copending. application but which 55 shows no washers;-;Figure 23 is -anend section of,

a structural member reinforced by additional angles; Figure 24 is an end section of a structural member reinforced in another manner; Figures 25 and 26 show side views of bolted up structural members; Figure 27 is a side View of a framing 5' detail; Figure 28 shows a column and beam elevation; Figure 29 is a plan view of spliced connection plates; Figure 30 is a section through a girder; Figure 31 is an elevational view of a'column and beam; Figure 32 is a side view of a connection detail; Figures 33, 34 and 35 show a face, end and rear views of the angle; Figures 36, 3'7, 38, 39- and i0 are side views of connection details; Figure 41 is a section showing angles and a connecting spacer. Figures 42 and 43 are end views of a plate bent to form a connection angle.

Figure 44 is an elevational View of a column and girder.

Referring in detail to the figures, Figure l, the

size of plate a, 5 x 9 permits, with the 2 2" spacing between the center line of the holes in the angle to the corner of the angle, three different sizes of members on either axis of the plate as shown in Figs. 10 to 21. When the plate is connected to angles short side up 6", '7'f and 5 8" depthof members-can be formed and when the plate is connected to angles long side up 10', 11" and 12 depth members can be formed. \Vhen two plates are adjacent to form connection plates as in Figures 28 and 39, additional bolts may be inserted under these plates, as at H, in order to assist in supporting the load. The edge of the plate would contact the bolt asthere is a Mo," metal between the edge of the plate and the edge of the hole and the holes are diameter.

The holes shown, on plate a are spaced as shown for several reasons. The holes suit 1" spacing around the edges of the plate and there is a 4" and 8 spacing respectively between the center lines of the parallel rows of holes.

The holes l2 located between the two parallel rows of holes are, centered to match the center line of the outside rows of holes. Three of these holes are positioned near each end of the long side of the plate. 45

I may add additional holes and I may space the diagonal rows of holes also on 1" centers diago nally and have their center line coincide with the center line of a hole on one of the outside row of holes.

It is important for several reasons that the width of the plate be eleven times the diameter of the 'holes and that the length of the plate be nineteen times the diameter of the holes;

I may add a washer to the head end of the bolt or make the head wider to secure greater bearing area to prevent any tilting of the flange angles also I may add a separate clip across the two adjacent angle flanges, the clip being bent over and under the two horizontal legs of the angle to prevent their spreading or tilting and I may add additional bolts to the flange angles between the web plates to also prevent any tilting or spreading of the flange angles.

Figures 2 and 3 show an angle b having a row of A9, holes on 1" centers, 4" from an edge and 2 from the center line of said holes to the corner of the angle. I prefer to use an angle being 2 on one leg and 2% on the other. Figure 4 shows bolt 0, of the stock being without threads. Figures 5 to 22 show an end view of various structural shapes and sizes of structural members all using in combination angle b and bolt 0 or angle 19, bolt 0 and plate a. In other words all the flanges shown in these various structural members are made up of multiples of a single perforated sized angle, some of which are connected together with multiples of a single sized bolt and others connected together with multiples of a single sized perforated plate. One leg of angle "22 has no holes.

Figure 23 shows how these members may be reinforced to carry additional loading by incorporating additional angles as closely fitting to the flange angles 13. Either square root angles or round corner angles may be employed.

Figure 24 shows an alternate method of reinforcing these structural members wherein perforated metal strips y are secured between the flange angles 1). In this figure, web plates (1. are double in opposite relation. These reinforcing strips may be of the same depth as the perforated angle leg, namely 2%". They would have the same perforations as flange angle b and as many could be added to the flange as required.

Figures 25 and 26 show beams made up of b and plates a secured by bolts 0. Additional bolts 0 are inserted in the flanges between the spaced web plates and a washer is introduced between the flanges where bolted, thereby stiffening the flanges of the beams.

Figure 27 shows a girder with plate a forming a connection plate. Floor joist d connects also to plate a by connection angle 2". This connection angle 6 is made up from scrap pieces left over from flange angles b.

Figure 28 shows a girder and column connected together by several plates a.

Figure 29 shows splice plates a extending beyond flanges b to form connection plates.

Figure 30 is a section through a girder f having floor joists g on each side. Girder f is connected to column h. The floor joists are connected together by angles "2 to plates 11., the angles extending through the open space between the flanges of girder f.

Figure 31 shows a column "2' and a beam 7', with plate a. forming a connection between them. Another plate "a in reversed position connects the column angles together. At the bottom of the column "2" plates a are bolted to angle e to form a base plate. Bolts k secure the column to the angle e which is made from scrap angles b and has a row of holes matching with holes in the plate a.

Figure 32 shows a combination of plate a with angle 2) and "e to form another form of connection.

Figures 33, 34 and 35 show a scrap angle e made from the sheared ofi short pieces of angles b. Angle 1) having one leg with no perforations in it affords the opportunity for punching holes therein where required to suit the needs of the framing. These holes are punched by the dealer or on the job.

Figure 36 shows a stud formed of two angles 1) connected to a beam by a plate a which is secured to another plate a in the beam.

Figure 37 shows a framing detail wherein an angle connection can be made with two plates a a. The holes located on these plates are so arranged that a great variety of different angles may be formed in framing. Angles b may be connected to these plates a to form a variety of framing combinations.

Figure 38 shows structural framing wherein a connection angle e is secured to angles b to permit convenient spacing of members along the holes in angles 1).

Figure 39 is a framing detail showing angles e connected to plates a to form a connecting means.

Figure 40 shows an elevation of a truss with gusset plate I made from plate a and connected to angles A great variety of trusses of different pitches may be made from sheared plates a.

Figure 41 is a view showing flange angles b with a spacer m. Spacer m is made by bending a plate "a. The holes in spacer m will match the holes in flange angles 12. A snug flt results from the distance of the outside holes being 8". This spacer m may be reversed and introduced between flange angles The spacer may be used to tie beams together when made in multiples to form a column or girder.

Figures 42 and 43 show plates "a bent on long and short axes, respectively, to form connection angles. The plate being bent to suit the desired spacing of the framing members and utilized somewhat after the manner of angles 6.

Figure 44 shows a column and girder, the column being made up of multiples of angle 2) connected together by plates a, base plates n being made up of multiples of plates "11. and connected to the column by angles e.

Shelf angle 0 being made from angles e and beam connection p being made also from angles 6. The column is connected to girder by plates a. The girder also rests on a flange angle in the column. In this respect these columns could be bolted up as shown with a series of angles b several stories high, each floor girder resting on a. column flange as shown so that each floor would be supported entirely by its own supports, all of which would be tied together with plates a. In Figure 44 we show a floor girder supported on its own supporting steel. The connection plate a being merely a tie means. The roof above would be supported on the inner angles 1). All of the columns, girders, floor joists shown on Figures 27 to 44 are made up of multiples of an angle and multiples of a plate no matter what size or shape the members may take.

I claim as my invention:

1. A structural steel frame including horizontal and vertical members, each composed of spaced angles having holes spaced along one leg, and spaced rectangular web plates having holes adjacent all their edges matching those in the angles, the web plates being secured to the angles by fasteners extending through alined holes therein, a web plate of one of said members adjacent its junction with another extending beyond. the former and overlapping the latter, the holes in the overlapping portion of said plate registering with the holes in the angles of said other member.

2. A structural steel frame including vertical members composed of spaced angles having holes spaced. along one leg, and spaced rectangular web 10 plates having holes adjacent all their edges matching those in the angles, the web plates being secured to the angles by fasteners extending through alined holes therein, a similar plate being disposed below one of said members to serve as a base plate therefor with certain holes of the plate in the same vertical plane as the holes in the angles of said member whereby the plate may be secured tothe member by an angle piece having holes registering with those of said plate.

ALBERT HENDERSON.

- 0ERTIFI0A TE 0 coRREo oN. Patent No. 2,111,902.. v Apr11' 19',.19 3;

" ALBE T HENDERSON.

It is hereby certified; thafi'erroi' op'pears in the print eel specification of. the above numbers 6 patent requiring correction as follows: Page 2 first.

column, line'lfi for b' lread angles w; and. that the n; Letters Patent should'be greed Wifihthis correction fiherein that the some may conform to the recordfof the casein the Patent Office.

signed and sealed this jls t day of m;;, A. D. 1933.

Henry Vein Aredele (Soil) Acting Commissioner o1{.Pad'.,ents.

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