US1344929A - Reinforced-concrete bridge structure - Google Patents

Description

J. STAINER.

REINFORCED CONCRETE BRIDGE STRUCTURE.

APPLICATION FILED MAY3|,1919.

1,344,929. Patentd'iune 29,1920.

3 SHEETS-SHEET I.

\ INVENTOR.

"@ATTORNEYS.

.l. STAINER.

REINFORCED CONCRETE BRIDGE STRUCTURE.

APPLICATION FILED MAY 31, 1919.

1,344,929. Patented June 29, 1920.

3 SHEETS-SHEET 2.

IN V EN TOR.

@agf Gib/r761;

7 BY W i ZA TTORNEYS.

J. STAINER E REINFORCED CONCRETE BRIDGE STRUCTURE.

APPLICATION FILED MAY3I, 1919.

1,344,929. I Patented June 29, 1920.

\w mfmm RX N wwwlioz (76637 $fal'rz6r:

r art Toma was UNITED STATES osEF .STA'INER.,-O*F EPIERRE, SOFIJTHIDAKOTA.

A ,f nnmrononn-ooivcnnrn BRIDGE I'srRUcTURE.

To all whom it may concern: y Be it known that I, Josnr STAINER, a c1t1- zen of the United States, residing at Pierre,

in the county of Hughes and State of 'South' Dakota, have invented certain new and useful Improvements in Reinforced-Concrete Bridge Structures,of which the following a specification, reference being had therem to the accompanying drawings.

This invention relates to improvements'in reinforced concrete bridge structures, and has for its object the improvement ofthe construction of a bridge formed of reinforced concrete, whereby the strength of the bridge will be increased without ;ma-'

terially increasing the 'cost of construction of the entire structure.

Another object of the invention is the strengthening of the span or side structures of the bridge by a peculiar system of rods or bars, whereby a relatively small amount of material may be used in constructing the span or side structures thereby "resulting in a material advantage by reason of reducing the cost of construction of'a bridge structuref With these and other objects'in view, my invention comprises certain novel constructions, combinations, and arrangements of parts as will be hereinafter specifically described, illustrated in the accompanying drawings, and more particularly pointed out. in the appended claims.

In the drawings,

Figure 1 is a view in elevation of a bridge structure constructed in accordance with the present invention, partly shown in full line and partly shown in section.

Fig. 2 is a view taken on line 2--2, Fig. 3, looking in the direction of the arrows.

Fig. 3 is a view taken on line 3 3, Fig. 2, looking in the direction ofthe arrows.

Fig. 1 is an enlarged sectional view taken on line 1--4, Fig. 1, looking in the direction of the arrows.

Fig. 5 is a fragmentary perspective View of one of the transverse or primary beams showing the truss rods or bars passing under and through the same.

Fig. 6 is a bottom plan view of a bridge structure constructed in accordance with the present invention.

Referring to the drawings by numerals, 1, 1 designate the abutments, while 2,2 are the spans or side structures, and 3 is the floor structure.

Specification of Letters Patent. Patent d J 29 Application fi led May 31, 1919. SerialiNoi 300,856.

The abutments 1 are formed of reinforced concrete, and built upon the abutments are side structures 2 and the floor 3.

7 Each side structure 2 comprises a verti-' cal wall of concrete 4, and in each wall 4 is preferably a pair of primary truss rods or bars 5. In the lower portion of each side structure are preferably pairs of auxiliary truss rods or bars 6 and 7. For anchoring the ends of the bars 5, 6, and 7 inthe body of the sides, each bar is preferably bent at an'angle, at its outer end, as shown at 8. Additional rods or bars, as shown by dotted lines 9 and 10, Fig. 1, are embedded inthe side structures for further reinforcing and strengthening said side structures.

The floor structure comprises transverse or primary I-beams 11 embedded at their ends in the side structures 2, and auxiliary PATENT OFFICE. '1

or -longitudinally-extending'I beams 12 have 11, and the auxiliary or longitudinally-extending beams v12 are fastened by plates 13, as shown in Fig.4, without departing from the spirit and scope of the present invention, as the addition of any number of primary or transverse beams and the auxiliary or longitudinally-extending beams 12 may be involved, at the option of the constructor, without changing my invention.

At 14, Fig. 3, I have shown, in section, the webs of the primar and auxiliary I- beams to illustrate how these beams are brought together,'and held in said position by the angle plates 13 and the ordinary rlveting of said plates and beams together.

Referring particularlyl to Figs. 1 and; 5,. the truss rods or bars 5, 6, and 7 are shown bent downwardly at their middle, the rods or 1 bars 5 passing'through apertures 15 in the web of the transverse I-beam 11, and the rods or bars 6 and 7 pass under the I-beam,

over the floor to carry the Weight, since the primary I-beams 11 are suspended in the concrete by the suspending or truss rods or bars 5, 6, and 7. I have preferably used two of the primary or transverse 'I-beams 11, but, as indicated hereinbefore, any number can be employed in the construction of a bridge in accordance with the present invention, depending entirely upon the length or span .of the bridge to be constructed.

From the foregoing description, it will be understood that when carrying out my invention, in constructing a bridge, certain minor alterations or changes may appear to one skilled in the art to which this invention relates, and, therefore, I reserve the right to make such minor alterations or changes as shall fairly fall within the scope of the appended claims.

What I claim is: V

1. In a bridge structure of the class described, the combination with abutments, of side structures and a floorv structure supported upon said abutments, said floor structure including transverse I-beams and longitudinally extending I-beams, said I trans verse I-beams having their ends embedded in the side structures, said longitudinally-extending I-beams having their outer ends embedded in portions of the floor and having their inner ends fastened to the transverse Lbeams, a plurality of truss'bars in each side structure and bentdownvvardly near their middle, and some of said bars passing through the transverse I-beams and others of the bars passing under said I- beams near their ends.

'2. In a bridge structure of the class-described, the combination With abutments, of

side structure's and a floorstructure including reinforcing Lbeams having their ends extending into the side structures, and truss means embedded in the side structures and having their outer ends provided with anchoring means and being bent downwardly intermediate their ends and extending under the top of the reinforcing I-beams.

In a bridge structure of the class described, the combination With abutments, of side structuresand a floor structure carried by said abutments, said floor structure including primary beams having Webs and auxiliary beams secured to'the webs of the primary beams nearfltheir top, a'body of reinforced concrete carried by the upper portions of the primary and auxiliary beams, each of said side structures including reinforcing horizontal rods orbars and a series of truss bars bent downwardly intermediate their ends and having their ends bent at an angle for constituting anchor means, and some of said trussbars having their downwardly bent portions extending through the webojt the primary beams and others of said truss bars extending under 1 the primary beams, substantially as shown and described. v v y In testimony whereof hereunto, aflix my I signature.

JOSEF STAINER,

Images