US925989A - Reinforcing means for concrete structures. - Google Patents

Description

E. R. BOYLE & W. B. UPTON. REINFORGING MEANS FOR CONCRETE STRUCTURES.

Patented June 22. 1909.

Z SHBBTS-SHEET 1.

APPLICATION FILED MAR. 25,1908.

arrow E. R. BOYLE & W. B. UPTON. REINFORGING MEANS FOR CONCRETE STRUCTURES.

APPLICATION FILED MAR. 26, I908. 925,989.,

Patented June 22, 1909. 2 sHriTs-snm a.

L 34, W-fib f M 35 1 ELDRIDGE a. BOYLE AND WILLIAM B.

UPTON, OF WASHINGTON, DISTRICT OF COLUMBIA.

BEINFDRCING KEANE FOR CONtfRETE EiTRUCTURES.

Specification of Letters Patent.

Patented June 22, 1909.

Application filed March 25, 1908. Serial No. 423,158.

1T0 alt whom it may concern:

Be it known that we, ELDRiDGE R. BOYLE and WILLIAM B. UPTON, citizens of the United States, residing at Washington, in the District of Columbia, have invented a new and useful Reinforcing Means for Concrete Structures, of which the following is a specification. v

: The primary object of this invention is to provide nove means of a simple nature, whereby an effective reinforcing structure for concrete is secured, in which the portions of the members weakened by openings formed therein, are reinforced, and said reinforcemerits constitute anchors in the concrete.

While the invention is in the nature of an nnprovemnl; on the means disclosed in the platent granted'to us on September 3, 1907,

0. 865,231, there are certain features that may perhaps be employed in other structures of an analogous character.

Another object is'to provide a stress bar that can eel-easily rolled by the ordinary machinery, and when placed in position, the concrete can be efl'ectively and readily packed about it.

In the drawings :-Figure 1 is a side elevation of a portion of a bar, and illustrating one embodiment of the invention. Fig. 2 is a cross sectional view therethrough. Fig. 2 is a detail sectional view that is diagrammatic in its character, illustrating the relative thickness of'the lugs andfin. Fig. 3 is a side elevation, the reinforcing arms being shown in section. Fig. 4 is a horizontal sectional view. Fig. 5 is a side elevation of a-difierent embodiment of the invention. Fig. 6 is a cross sectional view through the same. Fig. .7 is a side elevation," but showing the reinforcing arms in section. Fig. 8 1s a horizontal sectional view. Fig. 9 is a side elevation of still another embodiment of the invention. Fig. 10 is a verticalsectional view thercthrough. Fig. 11 is a side elevation, but showing the arms-in section. Fig. 12- is a horizontal sectional view. Fig. 13 is a side elevation of a still different form of construction. Fig. 14 is a vertical cross sectional view through the same. Fig. 15 is a sideeleyation with the reinforcing arms illustrated in section. Fig. 16 is a horizontal sectional view.

Similar reference numerals designate corresponding parts in all the figures of the drawmgs.

teferring first to the embodiment dison opposite sides of said members are oilsct, and rest upon the cause of their peculiar relation,

closed in Figs. 1-4 inclusive, it will be noted that a stress bar 17 is employed comprising a body 18 hexangular in cross section and hav-' ing a sectional upsti'inding longitudinally disposed fin 19 that projects from one of the edges or angles of said bar. This iin is provided at intervals with transverse openings 20 that are circular and receive the bowed portions 21 of substantially U-shaped reinforcing arms. T hese arms are formed of rods assing through said pcnings 20 and doub ed, forming spaced members 22 located the fin. Portions 23 of body 18 of the bar, thereby supporting. said members 22 in upstanding angular relation to the bar, shown. In Fig. 11 of the drawings of our former patent is shown a modification, which was not claimed specifically and could not be so claimed in said patent for the s )eciiic claims were based on another form of t e invention. It is our intention in the resent application to claim thisform, and tie description thus far given applies equally well to the construction shown in Fig. 11 of the said patent, with the exec )tion that around bar is there shown while a hexagonal bar is herein described.

It will be evident that the formation of the openings 20 in the fin 1.9 weakens the stress bar 17 to some extent, and in order to overcome this weakness, sets of lugs 24 are provided on opposite sides of the body 18 in vertical ulincmcnt with thoopcnings, but of considerably greater length than the same. In practice, each of these lugs is substantially half the thickness of the lin, and the cross section of a set of lugs located beneath one of the openings equals the cross section' of such 0 )enmg, as Will be evident by reference to ig. 2 (onsequcntly the amount of metal taken out of the bar by the formation of the openings is placed upon the body of the bar by the lugs, and as'these lugs extend on op iosite sides of the openings a considerable distance, the metal added to the bar is several times in excess of the amount taken from it by the formation of the opcnings. The location of the lugs directly beneath the openings and'extending some distance beyond the opposite ends of the openings, is an important factor in enabling the bar to resist the strains to which it is subjcctcd when in use. But furthermore bethcy also perform another function, inasmuch as they constitute anchors in the concrete.

The particular shape of the bar is also important for not only can this bar be produced at comparatively small cost, but 1t is such that the concrete can be packed securely around and beneath it. 4

Adifferent embodiment of the invention is illustarated in Figs, 5-8 inclusive. In this form of construction, the bar designated corresponds in all respects with the bar 17, with the exception that the openin s 26 thrb gh the fin 27 are angular. The 28 oi said bar is provided with sets of combined reinforcing and anchor lugs 29.- The reinforcing arms 30 are rods that are angular in cross section and are passed through the openings 263:, In the present embodiment, the portionspassed through the openings are as shown at 31, so that bent horizontally, they lie alongside the fin, the angular rods or'arms fitting in the angular openings, be-

ing thereby supported, inasmuch as they cannot rotate in said openings.

Still another form of construction is illustrated in Figs. 912 inclusive. In this embodiment the body 32 of the stress bar is circular in cross section, and has an upstanding central and longitudinally disposedfin, 33 that is elliptica o enings 34. Reinforcing arms 35 correspon ing tothe same in cross section,

. are passed through these openings and have engage the vbodyof terminals 36 located alongside the fin. Sets of reinforcing anchor lugs 37 are provided on opposite sides of the body and corres ond in a l'respects to those first described. 11 Figs. '1 8-16 still another embodiment of the invention is disclosed. In this form of construe: tion, the body 38 of the bar is hexangular in cross section, and has an upstanding Iongitudinal disposed fin 39' that is provided with angular o enings 40. Reinforcin arms 41 are passed't rough the openings ano have terminals 4-2 located alongside the fin. In this structure, the lugs, instead of bein on the opposite sides are on the bottom, as lus trated at 43, the op osite ortions' of said lugs-being angularly .isposec as will be clear by reference to Fig. 14. Practically the same results are secured in this form of construction as in the other, inasmuch as said lugs not only compensate for the metal eliminated by the openings, but also act as anchors. The preferred form of stress bar is shown in Figs. 1 to 8, inclusive, in which the bar is made hexangular in crosssection-with the longitudinal fin upstanding from one of the angles. This brings the lugs 29, which are located on the o positc fiat faces of the bar, in a substantially vertical position, and being spaced apart on the bar, they firmly concrete which is packed about the bar.

From the foregoing,

it is thought that the constructlon,

operation and many advanrovided with substantially oval or .body having an ,disposed fin, said proportion, and minor detailsof construction,

may be resorted to Without departing from the spirit or sacrificing any-of the advantages .of the invention.

Having thus fully described our invention, what we claim as new, by Letters Patent is 1. in a structure of the character. set forth,

.the combination with a bar comprising -body having a fin, of a reiniorcing arm haw ing one, portion engaged with the n in-- other portion dis )osed longitudinally -o resting against t e body at one side or fin, and a third portion disposed in a ular Tb relation to the second portion and supported thereby in angular relation to the body;

2. In a structure of the character sctforth, the combination with a bar. comprising a .bodybaving a fin, said fin being provided. with an 'o ening, of a reinforcing arm engaged in the opening and having angularly disposed portions, one of which rests against the body, the other being in angular relation to the body.

3. In a structure of the character set forth,

the combination with a bar comprising a w body having a fin, said fin being provided with an opening, of a reinforcing arm passed through the said opening, then carried in substantial parallelism with the body and rest ing against the an angle thereto. a

i. in a structure of the character set forth, the combination with a bar comprising a 11 standing longitudinally fi ii being provided with a substantially circular opening, of a reini'ore ing arm comprising a rod that passes through the opening and is bent into substantially U-shape, forming spaced members located on opposite sides ot the fin, said members each comprising angularly disposed portions, one of which rests against and is disposed longitudinally. of the body of the bar, the other portion being thereby supported in angular relation to the bar.

'5. In a structure of the character set forth, a stress bar having a body that is hexagonal in cross section and is provided with a single central longitudinal outstanding fin at one of its angles, said fin being of less thickness than the body and provided with perforations to receive reinforcing arms, the two opposite faces of the body being provided with lugs projecting from said faces 1n spaced relation.

and in alinement with the perforations and in compensation therefor to maintain the cross sectional area and tensile strength of the ban.

and-desire to latter, and finally bent up at thereby supported 6. In a structure of the character set forth,

the combination with a bar comprising a 'being in alincment with one of the openings, t

body having a longitudinally-disposed outstanding fin of less thickness than the. body i and provided with openings, of reinforcing arms engaged in the openings, and spaced combined reinforcing and anchor lugs located longitudlnally upon the bar, each lug there being at least as many lugs as there are openings, said lugs being in compensation for the openings to maintain the cross-scetional area and tensile strength of the bar.

7. In a structure of the character set forth, the combination with a bar comtn'ising a body having a longitudinally disposed tin of less diameter than the body and provided with openings, of reinforcing arms engaged in the openings, and spaced elongated coinbincd reinforcing and anchor lugs located longitudinally upon the bar in alinemcnt with the openings and of greater length than the same'and extending beyond each end of the o enings.

8. En a structure of the character set forth, a bar comprising a body having a tin of less diameter than the body and provided with transverse openings, and combined re|nforcing and anchor lugs located at intervals along the body, each of the lugs being disposed in almeme-nt with one of the openings and ot greater length than the same, said lugs being arranged in sets on opposite sidesof the body, j the combined area of each set being greater 5 ing tin of less diameter than the body and provided with transverse openings to l'(-t ccive reinforcing arms, and sets of spaced combined reinforcing and anchor lugs located at intervals along the body on opposite sides thereof, each lug being in vertical alincment with one of the openings and of greater length than the same and extending beyond a each end of the openings.

t 10, in a structure of the character set i forth, a stress bar comprising a body having tan outstanding longitudinal tin extending ;centrally of the body and provided with a transverse openings at intervals, and corresponding sets of spaced lugs locatedalong the opposite sides of the body, each set of lugs being in alineinent with one of the openings and of greater length than the same, the combined cross section of each set being substantially equal to the cross section of the transverse opening formed in the tin, while the combined area of each set is greater than the area of the opening.

H. in a structure of the character set forth, the combination with a bar comprising a body that is substantially hexangular in cross section, and a longitudinally disposed tiu projecting centrally from one of the edges of the body, said tin being provided at intervals with transverse openings, of reinforcing arms having portions located in the openings and disposed upwardly in angular relation to the bar, and sets of spaced lugs formed upon the opposite. sides of the body in alinelnent with the openings and longer than said openings, the combined cross section of each set of lugs being substantially the cross section of the opening of l the tin.

1 In testimony, that we claim the foregoing t as our own, we have hereto atlixed our signatures in the presence of two witnesses.

ELDRIDGE R. BOYLE. I WILLIAM B. UPlON.

JOHN H. SIGGERS.

: Witnesses i l E. G. Smonns.

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