US871568A

US871568A - Concrete-floor structure.

Info

Publication number: US871568A
Application number: US31984106A
Authority: US
Inventors: Fred H Daniels
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-06-02
Filing date: 1906-06-02
Publication date: 1907-11-19
Anticipated expiration: 1924-11-19

Description

'PATENTED NOV. 19 1907.

lNVEFdTOR F. H. DANIELS. CONCRETE FLOOR STRUGTURE.

APPLICATION FILED JUNE 2, 1906.

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s T e FRED H. DANIELS, OF WORCESTER, MASSACHUSETTS.

CON CRETE-FLOOR STRUCTURE.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed June 2,1906- Serial No. 319,841.

To all whom. it may concern:

Be it known that I, Fem) H. DANIELS, of Worcester, \Vorcester county, Massachusetts, have invented a newend useful Concrete-Floor Structure, of which the following is a full, clear, and exact description, referones being bad to the accompanying drewings, forming part of this specification, in

Figures 1, 2, 3 and 4: are vertical sections of concrete floor structures showing dilferent 'embodiments'oi. my invention.

strength. The reinforcement consists of bay, which would be liable to crack.

Wires, or wire fabric stretched over supporting beams, ond brought down and tier from below between the beams, before putting on the concrete, sons to form approximately catenary curves.

In the forms of Figs. '1 and 2, the wires or fabric 2 is laid directlyon steel beams or steel strips or bars 3, resting on the floor beams 4, and embedded in the concrete 5. The beams 4 are surrounded by the concrete beams 6 which are preferably formed with tapering lateral surfaces 7 in order .to give a shorter floor span, and increase the carrying In the form of Figs.

capacity of the door. 3 end 4, the fabric 2 beamed.

When one of the boys or sections between the floor beams is heavily loaded, the floor, which is a continuous girder for the whole length of the building, is liable to buckle up wardly in the next boy-if there is less load thereon. This would produce a tension in the top portion of the concrete of the unload p d o prevent this, I employ the wire fabric 8 forming another layer extending through the lower part of the floor. I

In Figs. 1. and 3 the ends of the fabric sec extends above the v tions 8 are buried in the concrete at the bases of the floor beams; while in Figs. 2 and; the ends are embedded near the tops of the floor beams. In ali. cases the central portion of the added fabric layer is tied to the upper reinforcing layer between the beams and preferably at the center of each bay. This added layer ties down the main reinforcement at the centers of the s ans, and acts as a reinforcing tension mcm ier, which prevents the weakness above described.

Various modifications may be made with in the scope of my invention ft-S defined by the claims, since What I claim is:

1. A concrete floor structure having beams, and a motel reinforcement having both compression and tension members, the same con-- sisting of upper flexible reinforcements embedded in the concrete and extending over the beams, and lower flexible reinforcements tied to the upper reinforcements atthe con tral portion of the floor span, substantially as described.

2. A concrete floor structure having metal beams embedded in the concrete beams which extend below the intermediate portions of the floor struc turc, and a metal reinforcement for said concrete structure having both compression and tension members, the same consisting of up or flexible metal reinforcements e'mbeddct in the concrete and extending over the beams, and lower flexible reinforcements tied to the upper reiuforcc ments at the central portion of the floor spans, and having their end portions carried down'wardly into the: concrete beams, substantiel'ly as described.

3. A concrete floor structure having metal beams embedded in the concrete beams which extend below the intermediate portions of the floor, supporting members resting on the metallic beams, and a metal reinforcement for said concrete structure having both compression and tension members, the same consisting of upper flexible reinforcements extending over the upper edges of the supporting members and near the lloor surface at such )oints, end lower reinforcements tied to depressed portions of the upper reinforcements at the central portions of the floor spans, substantially as described.

In testimony whereof, I have hereunto set my hand.

FRED H. DANIELS. Witnesses:

A. F. BACKLIN, TEOS. MAonUFF.