US941837A - Concrete building construction. - Google Patents

Description

.R. v. woons. UONGRETE BUILDING CONSTRUCTION.

APP'LIOATION FILED JULY 12, 19 07. RENEWED OUT. 2, 1909.

94: Patented. Nov. 30, 1909.

INVENTOR y @WI Vaads;

viz/awa ATT EY UNITED STATES ATENrnFIo RAY v. woons, OF SAN rR'ANCIscO, CALIFORNIA, AssIGNoR or. O E-HALF 'I'o 'rIIR WOODRUFF COMPANY, or SAN FRANCISCO, CALIFORNIA, .A CORPORATION or CALIFORNIA.

CONCRETE BUILDING CONsTRUc'rIoN.

Application filed July 12', 1907, Serial lilo. 383,434. Renewed October 2, 1909. Serial No. 520,682.

T all whom it may concern:

Beit known that I, RAY V. Woons, a citizen of the United States, residing in the city and county of San Francisco and Stat-e'of California, have invented new and useful Improvements'in Concrete Building Constructions, ofwhich the following is a specification.

My invention relates to cement or concrete building constructions. Its object is to devise a method and means of building and laying floors, partitions, beams, girders and the like whereby the slabs or elements enter-- ing into the structure may be cast separate and at any convenient place away from-the building and then hoisted into place and comented together into a' permanent structure.

The invention consists of the parts and the construction and combination of partsas hereinafter more fully described and l b claimed, having reference to the accompanying drawing,in which *Fig. 2 is a. plan view of the same.

Figure 11s a cross section of a girder showing my method of bonding the slab.

sections to each other and to the girder.

1s a side elevation of the same.

A represents a girder or beam which constitutes part of my invention. This beam or girder may be of, any suitable length depth and shape according to its conditions of use. It comprises essentially a cast of concrete in which are embedded the longitudinally extending tension bars 2-2', and the looped shear-bars or stirrups 3 which embrace the tension bars and stand cross- Wise thereof and project a distance above the top surface of the girder a little less approximately than the thickness of the slab sections-4:. .As here shown the girder A is substantially T shape, but that is not essential so-long as a suitable seat or support is provided for the adjacent ends of said slabs 4, and which seats are here shown as furnished by the lateral flanges a of the beam. There are any desired number of these looped shear bars or stirrups3 to a beam,

ming lengthwise.

anchored to appropriate abutinents as the walls 7. Any desired formof. wall anchor for the beam. may be employed, such as the anchor bolts 8. Where two sets of tension rods 22 are used, the rods of the upper macaw..- so, 1909 set 2 are bent up and then outward at their ends as'shown in Fig. 3; the ends of both sets b'eing hooked and contained within the concrete body of the.beam.- -The slabs like. the beam are cast separate from thejplace which they are designed-later to occupy permancntly in the building; the tension rods 6 in' the sl'abs being bent upward within and adjaoentto the ends of'the slabs and projecting a sufiicient distance beyond the ends-of .t-he slabs to enable them to-be suitably tied to or hooked over. the anchor rods,

5, when the slabs are laid in position. The .ends ofthe slabs purposelydonut abut be-' cause the end spacev between the. adjacent slabs is designed to form a pocket fora lill- 'ing of=ccment or concrete 9; the previously exposed loops 3 and rods 5 and 6 being em bedded in' the cement filling which later serves to give finish and rigidity to the structure and to prevent displacement of the ele ments. A union of this oharacter'after the cement'or. concrete filling 9 has set operates to bond the slabs and girder together into one integral structure with every part actu-' .ally. tied to the other; by metal; thatfis,

every slab is really tied to every other slab and to its supporting girder by the connections" afforded by the several metal bonds 3-5 and 6. 'The meta-l reinforcing is in fact continuous. in this system.

Having thus described my invention, what I claim and desire to secure by Letters Pat.- ent is 'In a buildingconstruction, the combina-' tion of a concrete girder having longitudinal tension-rods extending through the lower portion thereof, said rods being spaced apart. shear-bars of substantially rectangular form having. their major axis at right-angles to the major axis of the girder and having their upper ends normally projecting above the top surface of said girder, said girder having lateral flanges atits upper end, slabsections having their adjacent. endsscparated from each other and supported upon the flanged end of tho girder, the upper ends of said shear-bars entering the space between the adjacent-ends of the slab-sections; tension-rods extending longitudinally l hrough the slab-sections and projecting be I ends of the slabs and embedding the upper v ends of the hear-bals, the upper tie-rods, 0

and the Qrojeeting ends of the slab tie-rods. In testnnony whereof I have hereunto set my hand 1n presence of two subscribing witnesses.

RAY V. WOODS. Vitnesses:

' S. H. Nonnsia,

C. A. PENIIELD'.

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