US1745880A - Reenforcement for monolithic elements - Google Patents

Description

J. WINSTON REENFORCEMENT FOR MONOLITHIC ELEMENTS Filed Sept. 24, 1927 Feb. 4, 1930.

I'NVNTOR ATTORNEY Feb. 4, v192.0. J. WINSTON 1,745,880

REENFORGEMENT FOR MONOLITHIC ELEMENTS Filed Sept. 24, 1927 3 Sheets-Sheet 2 5' mfimggfm/,m /4- /4 mig@ ,4 grml/'wif'. d

Z /Z Z 2' iff@ ATTORNEY Z3 v l lNvEN-roR 6 BY E Feb. 4, 1930. ,1. wlNsToN REENFORGEMENT FOR MONOLITHIC ELEIIENTS Filed sept. 24, 1927 s sheets-sheet 5 bwl Z INVENTOR ATTORNEY Patented Feb; 4, 1930 UNITED STATES JOSEPH WINS'TON, OF NEJWYORK, N. Y., AssreNoR,.DY DIRECT AND iviEsNE Assisi:-

g MENTS, To Tian STONE CORPORATION, A CORPORATION OF DELAWARE REENFOROEMENT FOR ivioNoL'I'THIc ELEMENTS Application` led September 24, 1927. Serial No. 221,659.

This invention'relates to means of metallic l reenfoicement for monolithic elements, and my improvements are' particularly directed to reenforcementv for use with concrete elements that are OfT-shalped in cross section.

Inelements of this character there are planes of weakness that extend transversely of both the lweb and the'flange portions, and

one of the objects of' my invention is to prof vide'reenforcement that extends continuous ly in theweb and flangesto correct this weakness. Another object yof my invention is to provide anchorage means for the reenforceyao ment to 'developits full strength and thereby yprevent shearing strains .upon the flanges and n `web from tending to disturb the relative posif Vtioning of theA reenforcement, land still I another: object Of'my invention consists in f 'the 'arrangement' of the*'reenforceinent in such manner as toy distribute any concentrated loads thatmay befapplied to: the element.y

Other features and advantages of my invention will hereinafter appear. ''In the drawings:

*Figure l 'is a cross-sectional view yof a monolithic element of Tshape provided with 'my improved reenforcement."

,y ig. 2 is a front view thereof, partly in section. Y.

a similar view to that 'of Fig.' 1 buty showing the rod reenforcement supple-kk {.mented with mesh l'reenforcement 1 vFig. 4 is a front view of`l4`.ig'.3 partly in section. Y Fig. 51s a cross-sectional view showing a modified form of lrodf,reenforcement.

f, Fig. 6'is a similar view showing-a further l modification wherein mesh yreenforceinent 1 loading.

f supplements thero'd""reenforcement.`

f ment. i Y

, Fig. 9 is a detail of reen-forcement applied tothe web Vportionfof a' monolithic element having anchorage means wherein the re- 'enforcementis extended around the nailingv g I have shown the lloops formed by rods 1 in strip.

Fig. l() shows a further modification wherein the nailing strip is secured by auxiliary tie means, and y v Fig. 11 is a view showing a compression member between two T-shaped monolithic elements, with reenforcement that connects said elements and extends into said compression member.

lIn Fig. l, I have placed the lines A--A and B-B to indicate the planes of weakness existing in a'monolithic element of T-shape in cross-section, which weakness it is the purpose of my invention to fortify by means of metallic reenforcement.

This reenforcement (Figs. 1 and 2) takes the form of preformed rods l, placed at suitable distances apart within the material ofA the element, said rods being extended as shown, through the flanges 2, 2 and web 3 of the element, that is' to say each rod is looped within the web, extending to a point near the end thereof, is ci'ossed at the point 4 between the flanges,and is extended out from that point to near the outer ends of the flanges. lLocated in the base of the loop is a stouter rod '5 that-extends longitudinally within the web and constitutes anchorage means to retain the looped rod 1 in its set position against the pulling effort exerted thereon when the flanges 2 are subjected to shearing strains. A central rod 6 lying longi- *tudinally through the element, in contacting relation with the upper end 7 of the loop, constitutes a thrust bearing therefor, thus r aidingto localize said loop, and other, parallel rods 8, 8 positioned near the outer' ends of the llanges, function as transverse reenforcement for said flanges. Since the flange embedded portions of succeeding rods 1 are inclined oppositely in the flanges, this condition being indicated in Fig. l by the full lines there lshown of a rod l and the dotted lines of a succeeding rod la, the longitudinal rods 8 may, as illustrated, lie between the diverging ends of succeeding rods to securely weave together the rods l, la and 8 in fabricated form. Said rods l, la and 8 may if desired be connected at their points of contact'by solder, welding or otherwise. Also the inner end of the loop formed thereby, thel crossing occurring around a stout, longitu-` web 3 as connected by means of longitudinally extended wires 9. f y

Iny Figs. 3 and 4 the reenforcement is the same as that shown in Figs. 1 and 2 so far as the looped rod 1 and the longitudinal rod 5 are concerned, but in this example of my invention the oppositely extended endsof rod 1 in flanges 2 lie therein in the same plane, and

wire mesh, represented by the longitudinally extended strands 10 and the transversely ex-` InFigQ the same anchorage rod 5 is shown in the web 3, but the preformedrod 12-that extends through the web and flanges in this example, while looped around rod 5,

continues therefrom in, parallel arms that respectively branch olf into the opposite flanges 2. Alsoin this form of my invent-ion I have shown a longitudinally extended rod 13 embedded in the material between thel flanges, centered between the branches of rod 12, and in the saine plane, lying upon the outer ends of rods 12 I have. shown other longitudinally disposed rods 14. Interme diate rods 13 and 14 but lying below the branches of rods 12 are otherlongitudinally disposedl rods 15, of smaller Vcross-section. The rods 13 and 14 may be connected to rods 12, to constitute a mesh. The vmodification of Fig. 6 has the same preformedrod 12 as in Fig. 5, but instead of-,the rods 13, 14 and 15 it has a mesh composed of the longitudinal ,members 16 and Vtransverse members 17, this mesh being embedded in the flange material above the branches of rod 12. f

.F or heavier loading the reenforcement 'may be in the form of a very stout preformed rod 18 whose branches 5 cross each other at dinally disposed anchorage rod 19 while in Fig. Sthe preformed rod 2O is crossedtwice to provide anv eye 21 that embraces an anchorage rod 22.

In Fig. 9 the web 3 is shown asprovided with a nailing strip 23 that lies outside the anchorage `rod 24, the preformed rod 25 in this instance being looped aroundthe nailing strip to unite it to the web.

A similar condition exists in the example of Fig. 10, wherein the strandj 26 extends around nailing strip 27, but here thenailing strip is enclosed at its sides by thew-eb material, inwhicha groove 3 is provided to receivestrand 2 6.f Also in this example a preformed rodl 28 is looped around an anchorage-rod'l29 at the inner surface of the nailing strip. l

hly invention further comprises means for, the connection. of adjacent T-shapedmonolithic elements by metallic reenforcement and fo-r reenforcing and an. interposed compresj Y sion memberasto its structure and connective` relation with said elements. v v

In Fig. 11Ythere appears in horizontal section two adjacent monolithic elements, each .having the flanges 30 and ,web 31, adjacent flanges of said'elements being` in opposed, spaced relation, and a compression' member 32 being interposed between vthe Webs, to serve as a support, for floor beams.v The reenforcement, here represented as steel ycables 33, is extended through the flanges and looped in the webs. Each cable projects from the flange ends and there is divided into strands 34 that aresuitably dispersed within "the material of kthe compression member, to strengthen itand anchor it to theconnectingmo-nolithic elements. Variations within the spirit and scope of my invention are equally comprehended in I the foregoing disclosure.

Ik claim:

1. The combinationYwithazmonolithic elei i ment of T-shape in cross section, having flanges and a web, of metallic reenforcement therefor comprising preformed rodsfhaving open looped portions `to lie in the Web and branches toy lie` in the flanges, anchorage meansk in said web for said looped portions and reenforcement rextended rtransversely within said flanges. V

2. The combination monolithic element ofT-'shape in kcross section,hav11g flanges and alweb, ofinetallicreenforcement therefor comprising preformed rods having 4 Y open looped portions to lie in the webl and branches to lieV inthe flanges,'a rod extended Y longitudinally lwithin said web inengagement with said loopedportionsjto constitute -anchoragejmeans therefor anda mesh disposed withinsaid .flangeportiona said mesh Y .Y

comprising members extended longitudinally within' the flanges,'in juxtaposition to vthe `Y 'branches'of said'- preformed rods, and'other members superimposed upon said longitudinal members in-transverse relation thereto. Newv York, September 22nd, 1927. Y y c "JOSEPH'WINSTONJ

Images