US3879008A

US3879008A - Permanent forms system

Info

Publication number: US3879008A
Application number: US351269A
Authority: US
Inventors: Jose R Gayoso
Original assignee: Individual
Current assignee: Individual
Priority date: 1973-04-16
Filing date: 1973-04-16
Publication date: 1975-04-22
Anticipated expiration: 1992-04-22

Abstract

Permanent forms constructed generally of sheet metal plates and metal channel members. The forms are provided in a plurality of sizes whereby they may be used to form the poured concrete beams spanning the top of any size of building wall opening in a manner whereby the beams may be poured at the same time as the poured concrete floor slab thereabove. Means are provided on the beam forms to support the floor forms.

Description

D United States Patent 1 [1 1 3,879,008 Gayoso 5] Apr. 22, 1975 1 1 PERMANENT FORMS SYSTEM 1.999.723 4/1935 Ricsbol 249/50 x 2. 2 6 I761 Inventor: Jose M 2310 Country Club 332.2132 1132i 23???? 3323151? Prado. Coral Gables. Fla. 33134 Filedi p 16, 1973 Primary Eraminer-Francis S. Husar [2]] Appl N05 351,269 Assistant E.\'aminer.lohn S. Brown [52] U.S. Cl. 249/50 ABSTRACT [5;] Cl... E04g 11/50 Permanent forms Constructed generally of sheet metal [5 1 d of earch 49/28 plates and metal channel members. The forms are pro- 249/19 2| 52/204 vided in a plurality of sizes whereby they may be used 217 to form the poured concrete beams spanning the top of any size of building wall opening in a manner [56] References and whereby the beams may be poured at the same time as UNITED STATES PATENTS the poured concrete floor slab thereabove. Means are 1.090.583 3/1914 Vcnable 249/50 provided on the beam forms to support the floor 1.502.092 7/1924 Duncan 249/50 X forms, 1.690.361 ll/l928 Bruce 249/50 X 1.888.181 11/1932 Ricsbol 249/50 X 6 Claims, 7 Drawing Figures PERMANENT FORMS SYSTEM STATE OF THE PRIOR ART Building codes require poured concrete beams across the top of all wall openings in buildings constructed of concrete, concrete blocks, bricks, etc. The concrete beams are steel reinforced, span the tops of the openings and extend outwardly of each side of the openings a predetermined distance to be anchored to the walls.

It has been for many years and still is the practice to construct each individual beam form from wood. This procedure is very costly because it requires a considerable amount of carpentry work and the materials utilized for each form generally are discarded as waste after one usage. With the present method. the beams are formed, poured and allowed to harden before the above concrete floor slab is poured.

BACKGROUND OF THE INVENTION The present invention pertains to a permanent forms system for forming the poured concrete beams spanning the top of building wall openings in combination with floor forms in a manner whereby the beams and concrete floor thereabove may be poured simultaneously.

Each beam form is comprised generally of two spaced apart planar side plates which are sized to overlie a portion of the wall on each side of the opening and a channel member, fixed across the bottom of the side plates, which is sized to span the width of the opening.

Support means are fixed to the outside of both side plates whereby the floor forms may be positioned for the above floor slab.

The permanent beam and floor forms are easily and quickly removable and are virtually indestructable, thereby being reusable for a very long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front elevational view of one side of the beam forms of the present invention;

FIG. 2 is a front elevational view of one side of a beam form, in accordance with the present invention, which is used in the event of a balcony extending outwardly from the wall opening;

FIG. 3 is a fragmentary perspective view of a channel member which comprises the bottom of the beam form;

FIG. 4 is a fragmentary perspective view of a floor form member;

FIG. 5 is an elevational view of the beam form of the present invention in place relative to a wall opening, the above floor being shown in section;

FIG. 6 is a cross sectional view taken along the line 6-6 of FIG. 5; and

FIG. 7 is a cross sectional view taken along the line 7-7 of FIG. 6.

DETAILED DESCRIPTION OF THE DRAWINGS With reference to the drawings in which like reference numerals designate like or corresponding parts throughout the various views and with particular reference to FIG. 6, the beam form of the present invention, generally indicated at 10, is comprised of a pair of spaced apart

side plates

12 and 14 and a bottom channel member 16.

Referring to FIG. 1, the form plate 12 includes an outwardly extending bottom flange l8 and the channel member 16 is bolted thereto as at 20 and 22. It should be noted that the channel member 16 .is somewhat shorter than the plate 12 and is centered relative thereto. A pair of angle support brackets 24 and 26 are fixed as by welding to the outside face of the plate 12 and a pair of

holes

28 and 30 are provided through the plate 12.

With reference to FIG. 2, the form plate 14 includes an outwardly extending bottom flange 32 which is bolted at 34 and 36 to the channel 16 in a spaced apart relation to the form plate 12. The

form plates

12 and 14 are of substantially the same width. A longitudinally extending angle iron 38 is fixed as by welding to the outside face of the form plate 14 and a pair of through holes 40 and 42 extend therethrough.

As will be more fully apparent from the following description, the beam forms 10 and 12 are made in a plurality of widths to accommodate various widths of wall openings. Consequently, the

form plates

12 and 14 and the channel 16, as seen in FIGS. 1 and 2, will vary considerably in width and the numbers of brackets 24, 26,

holes

28, 30 and 40, 42 and

bolts

20, 22, 34 and 36 will vary in proportion to the widths of the

form plates

12 and 14.

Referring to FIG. 6, the form plate 12 is illustrated in place on the right side of the poured concrete beam B. Seated across and within the angle brackets 24 and 26 is a support timber 46 for the ends of the floor forms 48 which comprise a plurality of inverted sheet metal channels 50 having inwardly turned

side flanges

52 and 54. The floor forms are supported on I beams 56, shored as at 58, in a predetermined spaced relation along their lengths. As best illustrated in FIG. 7, a wood form member 60 is, for example, placed between every fourth or fifth floor form 48 for forms removal purposes, the wood form being easily removable, thereby permitting removal of the sheet metal channel forms 48. Both ends of each channel form 48 are provided with end closure plates 62 (FIG. 4).

With reference to FIGS. 5 and 6, cross members 64 and 66, which may be lengths of 2 X 4s, are positioned across the outside faces of the

form plates

12 and 14. Straps 68 and 70 are extended through the respective pairs of

holes

28, 40 and 30, 42 and fixed as by nails 72 to the respective cross members 64 and 66. In this manner the

forms

12 and 14 are held firmly in place.

The form plate 14 is used as in FIG. 6 when a balcony is to extend outwardly of the building structure. In this event wood balcony forms 74 are supported on the angle iron 38. The beam form 10 and balcony forms 74 are supported by conventional shoring means (not shown).

The channel member 16 is sized to exactly span the top of the wall opening W and said channel member 16 and

form plates

12 and 14 define a pocket to form the beam B when the concrete is poured. In the example illustrated in FIGS. 5 and 6, the beam B, floor slab F and balcony slab BS are poured simultaneously. If a floor slab is to extend outwardly from both sides of the beam B, a form plate such as 12 is used in the same manner on both sides of the beam.

What is claimed is:

l. A permanent forms system for forming the top of an opening in a building wall and the above floor slab whereby concrete may be poured to simultaneously form a concrete beam above the wall opening and the above concrete floor slab, said forms system compris- A. first and second form members comprised of sheet metal side plates, each being sized to cover one side of the open area where the beam is to be poured and to overlap the walls on both ends of said beam area, said first and second form members including,

1. means to support floor form means for the above floor slab,

2. means to strap said side plates together through the beam area with the respective end portions thereof beaing against the walls in said overlap areas,

B. an inverted channel member, fixed as by bolts relative to outwardly turned bottom edge flanges on said side plates to cooperate with said first and second form members to define a pocket for the beam, opening at the top to the above floor level.

2. A permanent forms system as defined in claim 1 wherein said means to strap comprises aligned hole means through said first and second form members and strap means extending through said hole means, spanning the distance therebetween, and providing extending ends outwardly of said first and second form means for secure attachment to timber means abutting the outer faces thereof.

3. A permanent forms system as defined in claim 2 wherein said hole means comprises at least two pairs of aligned holes and said strap means comprises a strap extending through each of said pairs.

4. A permanent forms system as defined in claim 1 wherein said means to support comprises at least two angle support brackets fixed to the outer face of at least one of said first and second form members to carry a support timber for the end portions of said floor form means.

5. A permanent forms system as defined in claim 1 wherein said floor form means comprises a plurality of elongated, side-by-side, longitudinally extending, inverted sheet metal channel members.

6. A permanent forms system as defined in claim 1 wherein said means to support comprises an angle iron fixed across the outer face of one of said first or second

Claims

1. A permanent forms system for forming the top of an opening in a building wall and the above floor slab whereby concrete may be poured to simultaneously form a concrete beam above the wall opening and the above concrete floor slab, said forms system comprising; A. first and second form members comprised of sheet metal side plates, each being sized to cover one side of the open area where the beam is to be poured and to overlap the walls on both ends of said beam area, said first and second form members including, 1. means to support floor form means for the above floor slab, 2. means to strap said side plates together through the beam area with the respective end portions thereof beaing against the walls in said overlap areas, B. an inverted channel member, fixed as by bolts relative to outwardly turned bottom edge flanges on said siDe plates to cooperate with said first and second form members to define a pocket for the beam, opening at the top to the above floor level.

1. A permanent forms system for forming the top of an opening in a building wall and the above floor slab whereby concrete may be poured to simultaneously form a concrete beam above the wall opening and the above concrete floor slab, said forms system comprising; A. first and second form members comprised of sheet metal side plates, each being sized to cover one side of the open area where the beam is to be poured and to overlap the walls on both ends of said beam area, said first and second form members including,

1. means to support floor form means for the above floor slab,

2. means to strap said side plates together through the beam area with the respective end portions thereof beaing against the walls in said overlap areas, B. an inverted channel member, fixed as by bolts relative to outwardly turned bottom edge flanges on said siDe plates to cooperate with said first and second form members to define a pocket for the beam, opening at the top to the above floor level.