US1087439A - Reinforcement for concrete construction. - Google Patents

Description

J. O. E-LLINGER. REINFORCEMENT FOR CONCRETE CONSTRUCTION.

APPLICATION FILED JUNE 23, 1909.

Patented Feb. 17, 1914.

WITNESSES."

BY I 3% Arum/m J. 0. ELLINGER. REINFORCEMENT FOR CONCRETE CONSTRUCTION. APPLICATION FILED JUNE 23,1909.

Patented Feb. 17, 1914. Y 2 SHEETS-SHEET 2. 2 v

m I /9 g L" 47 1 .5 I a /9 l v 5 2 S WITNESSES "UNITED STATES PATENT orrion.

JULIAN. o. E N or 193K, u-

REINFORCEMENT FOB CONCRETE CONSTRUCTION.

1,os'1,43a.

Specification of Letters Patent.

Patented Feb.1'7f, 1914.

Application filed June 23, 1909, Serial No. 03,773.

' T 0 all whom it may concern:

Be it known that I, JULIAN O. ELLINGER, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Reinforcements for Concrete Construction, of which the following is a specification. x i

This invention relates to improvements in reinforcements for concrete beams, girders and the like, and it relates more particularly to that class of reinforcements, wherein the tension members and the shear members are connected and form an open frame to. be embedded in the concrete.

One of the objects of theinvention is to provide a novel, and at the same time, simple construction that can be produced at small cost, and has a high degree of ciliciency.

Still another object is to provide a reinforcing structure which is capable of great latitude in form, so that it may be accommodated to the various conditions oncounted.

Several embodiments of the invention are disclosed in the accompanying drawings,

'- .but it will be evident from an inspection of the claims hereto appended. that the inven- 4 Fig. 8 is a cross sectional view. Fig. 9 is a cross sectional view showing sets of shear elements arranged on opposite sides of the longitudinal bars.

Referring first to the embodiment disclosed in Fig. 1, it will be observed that a plurality of sets of lower longitudinal bars or tension memberslO are. employed, which are preferably continuous from end to end of the structure, these members being located spacedrelation and any number being employed, as desired. Arranged above each lower longitudinal bar is an upper bar, preferably made of sections 11 that are disposed preferably only over' the end portions of the bars 10, and extend beyond said ends. The upper and lower tension members or bars are connected by vertical bars or shear elements 12, while the different sets of bars are preferably connected by tie'elements 13,

said tie elements consisting of plates having openings 14, through which the longitud nal bars are passed. If desired, for the purpose of further strength, auxiliary longitudinal bars 15 may be employed that connect the innermost shear elements 12. It

will be evident that a light but very rigid reinforcing frame is thus produced, and as each member constitutes a complete unit, in itself, it may be associated with as many more members, as is found desirable or necessary, depending on the conditions encountered.

In Fig. 1, two crossed reinforcements are disclosed, one consisting of three units, the

other of two. The latter extends through and over the former, and certain of the upper sections, as 11 thereof, have their.

inner ends overlapped, as disclosed at 11", and connected by tie plates 11. As shown, the overlapping is accomplished by having the end of one bar placed over the end of the other bar. This overlapping, however, may be accomplished by having the ends of the bars on the same level, so that they lie side by side.

In order to indicate how the structure may be modified, attention is invited to Figs. 2 to 5 inclusive. 4 In Fig. 2, a lower longitudinal or tension member 16 is employed, and above it is arranged an upper longitudinal or tension member. 17 that is continuous and longer than the lower member. Upright shear bars or elements 18 connect these members, and braces '19 are also preferably employed, that extend diagonally from the upper to the lower member, across the shear elements. The said shear elements are arranged only at the end portions of the longitudinal bars, and the in-; termediate portions are. connected by convergently disposed diagonal braces 20. Subupper bar to the central portion of the lower bar. In Fig. 5, crossed braces 24 are employed in connect-ion with an auxiliary longitudinal bar 25.

Inorder to secure a more perfect bond between a floor slab and a beam or girder, the shear elements, as disclosedat 18 in Fig. 6, may be extended above the upper longitudinal bar so that they will be embedded as high as possible in the floor slab.

In all the above forms, it will be noted that the distance between the shear chords or elements decreases as the distance of said elements from the ends of the longitudinal bars increases, thus insuring proper strength at the points distant from the ends of the frame or reinforcing member. Instead of decreasingthis distance by employing shear elements of the same width, different distances apart, the said shear elements may be successively increased in width, as shown at 26 in Fig. 7. It will be obvious that this arrangement secures the same desirable results. Attention is also invited to Figs. 8 and 9, wherein it will be evident that the shear elements may be located on one side only of the upper and lower bars or tension members, or may be placed on both sides, audit will also be'noted by reference to these figures that the up er longitudinal bars are preferably made of than the lower. a

-From the foregoing it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any ofthe ad vantages of the invention.

Having now-described my invention, what I claim as new and desire to secure by'Letters Patent is:

1. In a reinforcement for concrete construction composed of a plurality of standardized unitary reinforcing frames, each frame including a lower longitudinal bar and an upper longitudinal bar, placed over.

the lower bar, the said upper bar being so less cross sectional area I 2. In a reinforcement for concrete construction composed of a plurality of standardized unitary reinforcing frames, each frame comprising a lower longitudinal bar and two short bars placed over the ends of each of the lower bars, the outer ends of each of the upper bars extending beyond each end of the lower bar, the upper bar of.

one end being in a diflerent plane from that in which the opposite upper bar lies, whereby in assembling one frame with another the ends are reversed so that the upper-bar on one frame will overlap the upper bar of another.

3. In a reinforcement for concrete construction composed of a plurality of stand ardized unitary reinforcing frames, each frame comprising a lower longitudinal member, upper members composed of separate sections substantially parallel to the lowermember, transverse members connecting the lower member and each of the upper members, the outer end of each upper member extending beyond the correspondin end of the lower member and in difierent p anes, whereby in assembling one frame wlth another with the ends reversed the upper bar of one frame will overlap the upper bar of another frame.

4. A reinforcement for concrete construction, comprising upper and lower longitudinal members, the upper member composed of separate sections substantially parallel to the lower member, the said upper sections being in different horizontal planes, transverse tie or shear members connecting the lower member and the said sections of the upper member, whereby in assembling one construction with another end to end the upper sections will overlap.

5. A reinforcement for concrete construction, comprising upper and lower longitudinal members, the upper member composed of separate sections located over the ends and substantially parallel to the lower member, with the outer ends thereof projecting beyond the ends of the lower member, transverse tie or shear members con necting said sections to the said lower memher, said upper sections being substantially parallel to the lower member, but in different planes with each other, whereby in assembling one construction with another end to end the end sections will overlap.

6. r reinforcing frame for concrete construction, comprising upper and lower longitudinal members, the upper members having their outer ends coextensive and'projecting beyond the ends of the lower members, transverse, shear members connecting said upper members to the said lower members, end portions of the upper members will 10 said upper members being substantially overlap.

parallel to the lower members, the upper In witness whereof I have hereunto set members at one end of the frame being in my hand at the city, county and State of planes different from those in which the up- New York, this 15th day of June, 1909.

per members at the opposite end of the JULIAN O. ELLINGER. frames are arranged, whereby in assemblin In presence ofone frame with another, with thelower hor1- ISABEL R. Rrcrmnos,

zontal members: contacting end to end, the JOHN J. RANAGAN.v

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