US868921A

US868921A - Reinforced concrete structure.

Info

Publication number: US868921A
Application number: US37680807A
Authority: US
Inventors: George M Graham
Original assignee: G A EDWARD KOHLER
Current assignee: G A EDWARD KOHLER
Priority date: 1907-06-01
Filing date: 1907-06-01
Publication date: 1907-10-22
Anticipated expiration: 1924-10-22

Description

PATENTBD OCT. 22. 1907.

I I e. M. GRAHAM. nmurononn UONGRBTE smuo'runs.

APPLICATION FILED JUNE. 1, 1907.

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12:06 "/1 for. fiw f PATENTED OUT. 1907.

G. M. GRAHAM. v REINFORCED CONCRETE STRUGTURE.

APPLIUATION FILED JUNE 1,190!- I 2 SHEETS-SHEET 2.

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To all whom t biaycoitc ern:

UNITED STAlI new, .ts ion'on yorioiun-z n. cit-m n, or tj-niciotik i (El I m t; 0,

PATENT]? OFFICE.

v g TO o. it.'iaimrinn).tto'uten, or IlI ILINO'ISL 1 r nistnnononn con-enters s'rmrc'ronn. j

Be itknou n that I, Gaoneiz M. Gn'AiL-ui, a citizen of the United States of America, and a residcnt of Chi cago,,iu the county oijt'fook'and State of Illinois, have invented certain new and useful Improvements in Reinforced Concrete Structures, '01 which the iollowing is a specification.

This invention relates to that type of concrete struc tures in which a series-oi-wires forms thec'enter ot' a marginal frame to cohstitute am etal reinforce for the niass of. concrete coiupris'ing a fioor or other portionof a concrete structure. Y And the present improvement has for itsobject topro vide a simple and efiicieut struc-. turul lorinution and ccunbination of parts by means of which the wire comprising such ccnt eig and consisting of a single continuous length rff wire, rove or laced back and fortlrupou the marginal supporting fr'ame in a manner which admits of each individual strand, of the center so formed, beingbrought to a common and uniform tension and inconsequeuc e assmne in an equal, and uniformdegree thetnormal stress. or loadimposedof the same. 'Fig. 5, is a detail-plan jviewlot'atiother" form of the runner brackct aforesaid. Fig. 6, is a detail vertical section of the satire. Figs. 7 and 8, are detail sectional elevations .oftstill another iorrnof the runner-f bracketsaforesaid, and illustrating different positions j -in which the same are used. Figl 9, isa face View of the runner bracket last nentioned. V Fig. 10, is asec'tioin of the same, on line ;r i,.Fig. 9. v

Similarnumerals ofreference indicate like parts in the several views. Referring to the drawings, 1 represents a series of structural iron members of any usual form in .c'ross section, anr lunitcd together, at their meeting ends, otherwise held in proper relation, to constitute a rectangularmarginal.frame, which connection with the center of wire hereinafter described constitutes a skele-;

"ton reinforce unit fora floor-or otherportion oia rein-.

forced concrete building or structure,

i 2 isthc skeleton wire center oi the marginal frame aforesaid, and such centerjin' the present invention is formed by a series of wire:sitra nds; arranged in spaced .relatiom and in crossed or opposite directions Such.

Qpecificationot Letters latent.

Application filed .l'une 3., 'ifitii'. Serial No. 3 76,80 8

Patented Oct. "22, 1.907.

strands are connected to the marginal frame aforesaid and bymeans-oi which asiuglecontinuous length of Wire may be employed in forming the seriesoi u'iro strands above r'eierredt m and so that each individual strand can be brought'to a connnpn andunit'mm tension or loa l'imposed upon the skeleton reint'tn'ce as a whole, the result beingt-hata very strong and durable reinm etal.' I v p The attainment of effective and practical rnanner, constitutes the main feature oinovelty of thepresent invention. and comp rises accordingly, a structural formations rid arrangement'of mnnerbracketsior receiving the return bends in the single wire'conlpiisingfthe skeleton reinforce center, and the connection ofsu'ch braoketsto the marginal frame, as tollows:-v I v 3, are the runner bracketsabove referred to, and which in the present'constmction are secured fixed a circular or sen i' circular forn1, in accordance with their particular employment in the present construe f orrned with a grooved periphery to receive and hold the -return bends'in the single wire from which the rein force center is formed.

As applied 'tothe structural iron 1 beams, generally en'iployed in building structures, toform a floor orother ,liorizontal portion ;of the building, r the 'said runner brackets WiIPbe attached to. either the top or bottom, orjboth'surfaces of said beams by ineans of-lcurved clips or hooks 4, integrally formed on the said main or body irith the fia'r ,es of the beams, as shown in Figs. 2, 3 and 6'. While a single attaching'clip' t may be used as and 5, as affording a more stable attachmenhadapted to resist the-twisting stress upon the brackets as the single wire comprising the reinforce center is looped around the runnerbracket andforcibly'drawn into proper position. i

. 1 6, are integrally formed clips or tongues, formed on the runner brackets opposedrelationto the clips 4 aforesaid, and adapted to be bent around'the other edge of the structural iron inember 1, to prevent accidental ,tliss irigagexnent, for the runner bracket from said beam as illustrated'in Figs/2,3 and 6i.

to bear in an even and unitornrmanner the normal stress portion of the runner brackets ,and having engagement i the means of' attach ment, it is preferable to use a pair of the same, in spaced-relation'as shown in Figs. 1, 4

I As applied to the aforesaid beams 1 to'f'omi a wallet by theseries of runner brackets hereinafter described,

forcf'struct'ure is providcd'witha minimum amount of r v t the results above described in an and substantial manner to the stlucturalfironframe members 1 by means of integrallyt'ornied clips 4, or by fastening'bolts 5, as hereinafter more fully set forth;

Themain or body portion-oi suclrbrackets is either of v tion as hereinafter setiorth, and in all cases will be other vertical partof a building, the runner brackets. will be clamped to the edge of a horizontal flange of said 'such type of runner brackets the one side of the body' portion of a bracket is formed with a recess or channel 7 adapted to fit an edge of the beam 1. to prevent a turning tendency of the runner bracket under the strain imposed indrawing center into proper position. With a view. to'iuake such of the reinforce wire center 2, with a view to impose a" parallel relation on such strands, and at the same time provide a large'abutment diameter eral grooves of the In the practical application 7 the structt'tral iron beam b the clam in bolts 5 extending trans'vorsel i Y P O 7 '3 y across the beam,-and having hookedends for engage to where the runner brackets are attached. '\\'ith the strands of the reinforce wire type of runner-brackets reversible, duplicate channels 7 are formed. therein and located eqnidistantly at opposite sides of the opening or orifice in thebracketbody.

for the passage of the

fastening

7, 8, 9 and 10. The grooves the periphery of the runner bracketare preferably bolt 5, as shown in Figs.

made of the substantially rectangular form shown inFigs. 3,16 and 10, as it has been found in ex-. teosive practical experience that-such form of groove offers'th'e least resistance to the drawing of the wire into proper position.

A material part of the present invention consists in making thebody of the runner bracket of a diameter equal to the distance between the individual strands ets in the manner illustrated in Fig. 1, to form the skeletoh reinforce center of the structure, the wire bei drawn around said ;bracketsby suitable 'powcr.

' means as the operat on of'applyingthe wire progresses.

' 'It is-preferable toconnect the respective ends of the wire together .by a the completion. iifthe Winding of the wire incrossed (l irectionson the marginalframe 1, in the manner above "set forth. It is however within the province-of the present invention to use any other and suitable method of fixingthe-respective ends of each series of strand s. I

The semi-circular form of 'runner brackets heretofore described and as shown in 'Ifigs. 2 and 5, will be used on structural iron members 1,- which are arranged at outer portionsof a building structure; while the circular form of such runner brackets heretoforedescribed, and as shown in rigsz, 3 and 4",-'wil1 be used on structural iron members1which are arranged in the interior portions of the building structure and constitute a member incommon of two adjacent marginal frames, with thecircular runn'er brackets adapted to receive the return bonds of two reinforce wire centers as-illustrated to the right and to the bottom in Fig.1 I I While i tho drawings tne wire'reihforce center is -'-i' 3 ridual to a single marginal frame, to form clip or tie 9,'as shown in Fig. 1,. with 'ment with the flange at the side of thebeam opposite the present parts of areinforced concrete "tegrt'rlly formed clips and d length of wire rove around saidr'unner brackets, thernn of wire comprising the wire cerrtcl,

a floor or other building unit, the scope of the present invention involvesainarginal frame of any desired dimensions, so as to constitute an entire floor, side (if other portion of the-building, and provided with intermediate structural iron members over which the wire reinforce ccntcr' passes and. is intcrmcdiatcly supported 'tht'rrcby. v i

Wire or other lathing may be used in connection with the reinforce center above described, so as to receive and hold the mass of concrete which constitutes the floor or othcrportion of the building, asusual in class of reinforce concrete structures.

The present construction affords a ready means for atiaining'a hollow wall or floor construction, by theduplication of the reinforce center above described at opposite sides of the marginal frame 1, and as illustrated in Fig. 2. v

The runner brackets described in detail in the foregoing dcscription form the subject matter Letters Patent, Serial No. 389,653, filed of divisional application for August 22, 1907, and accordingly no claim is made in this application'to the structural formation, ofsuch bracket other than in combination with otherjcoacting.

the claims.

Having thus fully described my said invention what ,I claim as new and desire to secure by Letters Patent,

1. In a reinforced concrete structure, a marginal frame, a series of runner brackets fixedly attachedthereto, and a wirecenterformed of a singlelength of wire rove around said runner brackets, the runner portion of said brackets h'iviirgua diameter approximating the spacing ,of ,the strands of wire coniprising the wire center, substantiallyas set forth. H

I 2. In a reinforced concrete structure, a marginal frame, a series of runner brackets fixedly attachedtheretobyv iniegrally formed clips, and ii wire center formed of a single length of wire rove. around said runner brackets, the run ner portion of said brackets having a diameter approximating the spacing of the strands ofwire comprising the wire center substantially asset forth. p

3. In areinforced concrete structure, ,a' marginal frame, a series of runner brackets fixedly attached-thereto, and a wire center formed o-a single length of wire rove around said runner brackets, the runner portion of said brackets having a semicircular form and a diameter approximating the spacing of the strands of wire comprising the wire center,v subst ntially as set forth.

4. 'Iii 'a reinforced concrete structure a marginal frame, a series of runner brackets fixedly attached thereto byin",- a wircc gliiei-iformed of a single ner portion of said brackets having a semi-clrcular'forrn' and a diameter approximating the spacing of the strands substantially as set forth. i

vIn a reinforced concrete structure, am arglnal frame, a SQl'lts of runner brackets tixodly attached thet'etohy oppositely arranged an(l hrtcgrally formed clips, and a wire center formed of a single length of wire-rave around said} runner brackets, the runner portion of said brackets 111W- lug a'diamcter approximating the spacing of the strands of 'wire' compt'ising' the'wire center, substantially .as set" fOl'lll.

6. in a reinforced concrete structure, a marginaliraine, a series of runner bracketsfixedly attached theretdby or positely arranged and integrally formed lips, and a wire center formed of a single length of wire rrove around said runner brackets, the runner portion of said brackets has" in; n semi-circular form and the spacing of the strands of wire comprising the 'wire center, s' hs'tantially as setfortli.

structure asset forth a diameter approximating 7 7. In reinforced concrete structure, a marginal frame. a series of runner brackets the body portions of which are forlne with peripheral grooves rectangular in cross section and with oppositely arranged and integrally formed attaching clips, and :1 wire center formed of a single length of wire rove around said runner brackets, the runner portions of said brackets having a diameter approximating the spacing of the strands of wire comprising the wire center, substantially as set forth.

8. In reinforced concrete structure, a marginal frame,

a series of runner brackets the body portions of which are formed with peripheral grooves rectangular in cross secl l l tioh and with oppositely arranged and integrally formed attaching clips, and a wire center formed of a single length of wi e rove around said runner brackets, the runner pm:- 15 tions of said brackets having a semi-circular form and a diameter approximating the spacing of the strands of wire compr singthe wire center, substantially as set forth.

Signed at Chicago, Illinois, this 23rd day of May, 1907.