US2060046A

US2060046A - Floor supporting means

Info

Publication number: US2060046A
Application number: US61046A
Authority: US
Inventors: Giacomo Vincent Di
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-01-27
Filing date: 1936-01-27
Publication date: 1936-11-10
Anticipated expiration: 1953-11-10

Description

Nov. 10, 1936. V. Di GIACOMO FLOOR SUPPORTING MEANS Original Filed Feb. 17, 1931 v INVENTOR' l INCENT .D/ G/Aco/wo I Patented Nov. 10, 1936 UNITED STATES PATENT OFFICE Refiled for abandoned application Serial No. 516,312, February 17, 1931. This application January 27, 1936, Serial No. 61,046

1 Claim.

This application is a substitute for application 516,312, filed Feb. 17, 1931.

This invention relates to building construction and in particular to a method of supporting con- 5 crete flooring while the same is setting without the necessity of using shoring or other supporting equipment from beneath.

In building construction, concrete floors take from fifteen to thirty days to set and it has been necessary to support the flooring by props which sustain the floors while setting, these props are under the load to be supported and during the process of setting of the fioors from five to ten floors therefore, would have to be supported each from the floor beneath with the result that the bottom fioor top and bottom flooring had to sustain the concentrated load of all of the upper flooring concrete in addition to the underpinning necessary on each floor.

This method of supporting the flooring is highly objectionable particularly in View of presentday building operations in which high interest charges make it absolutely essential that the building be erected in the shortest possible time. With the shoring or underpinning in place on each floor, the finishing of the flooring could not be accomplished until the concretehad set and the shoring been removed.

One of the particular objects of my invention is to provide for the pouring of concrete floors and the supporting of the same without the necessity of using shoring or underpinning with the result that a finish can be put on the concrete flooring as soon as the upper surface thereof has hardened with the result that much time is saved and in addition, the supporting of the flooring is carried on by the structural'steel work of the building and not from the flooring below as has been necessary heretofore.

A still further object of my invention is to provide a device for the support of the flooring during setting and also to provide means whereby the proper camber can be given the under surface of the flooring as is essential in building operation 45 .and consequently well known.

My invention also contemplates the proper suspension from the permanent steel structure of the floor above of the concrete floor during its setting at spaced points so that the flooring may be finished without delay and, if desired, the wooden form employed in the pouring of the concrete may be removed after the same has become partially set so that the pouring of the concrete flooring may be carried out with a minimum of boards and timbers.

Changes and variations may be made in the construction shown and described without departing from the principles of the invention or sacrificing its chief advantages; hence such invention is not to be confined to the structures shown in the accompanying drawing:

Figure 1 is a view in elevation of a part of a building construction, the flooring being shown the structural steel beams of a flooring abovethe one to be supported and from which hangs the supporting means.

In building operations, it is usual to build around and. between the I-beams 6 defining a fioor of the building, a wooden form construction '1, the form being supported fro-m the I-beams through hanging wire 8 or other media. When the form 1 is in place, the concrete 9 is poured v to form the flooring and preparatory to pouring, the form I is suitably supported from beneath by shoring or underpinning so that the flooring,

while setting, will not sag but will be maintained in proper shape for the period of time taken for the floor to completely set. After the fioor has set, the finish Ill of any character is applied to the upper surface thereof and the floor is thus completed. In the use of shoring or underpinm'n however, as before mentioned, this finish coat Ii] cannotbe applied until the underpinning is removed, with the result that the building operation is materially delayed and the cost of erecting the building thereby increased.

My invention contemplates the use of a means for suspending the load from the upper beam 5 and contemplates the use of the hook I l or holding members which are arranged to engage the flanges of the beams 5 to suspend between said hooks l l the supporting cable l2 which is of steel and strong enough to support the load that will be placed upon it. The ends of the cable l2 are passed through suitable eyes l3 in the hooks II and secured through the medium of clamps l4, so that if necessary, the ends of the cable l2 in the clamp I4 may be adjusted to shorten or lengthen the hang thereof. The cable l2 passes through an eye I5 in the upper end of a bar [6 forming one end of a turn buckle construction IT. The lower end of the bar [6 is threaded with a left-hand thread l8 through the medium of which it is adjustably connected with one end of the turn buckle H, the opposite end of the turn buckle being threaded to receive the right-hand threaded end IQ of a depending bar 20. In employing my invention, before the flooring 9 is poured, the form 1 has been erected and in order to support it, use is made of a plate 2| carried by the bar 20 and arranged to be held up against the form planking 7 through the medium of the nut 22 which is threaded on the bar 20. This plate 2| gives to the form planking I, a direct support at spaced points wherever the supporting member is employed but in order to support the form throughout its length and breadth, use is made of the longitudinal timbers 23 and cross timbers 24, the latter being supported on the longitudinal timbers 23 which in turn are supported on the plate 25, this plate being secured in position by the nut 26 which is threaded over the end of the bar 20.

It is to be understood that as many of the supporting units may be employed as is deemed necessary and the

timbers

24 and 23 will be supported at properly spaced points depending upon the load they are to carry. A suitable strip or block 2'! may be employed on the form at the ends of the timbers 24 to prevent their displacement and it will be noted that the crosswise timbers 24 engage and support at spaced points, the planking I of the form in which the flooring concrete is poured while the timbers or joists 24 are supported through the medium of the longitudinal member 23. It is evident, therefore, that adjustment of the turn buckle I! will draw up on the rod 20 and the proper camber will be given the flooring and it will be effectively supported during its setting. After the floor has partially set, the nut 22 may be loosened as well as the nut 26 so that the

joists

23 and 24 may be lowered slightly to release the form planking I which may be drawn out and used in one of the upper floors that are to be poured, it being understood, of

course, that the

nuts

22 and 26 would again be tightened to draw up and take up the load as before but the concrete flooring would have sufficiently set so that its reinforcing rods, which are usually imbedded therein, would sustain the load during the removal of the planking 1 without any danger of collapse.

When the floor 9 also has partially set, it is quite evident that its upper surface can be finished off as at If! without removing the supporting construction and after the floor has completely set, the turn buckle cable 12 and its associated parts may be removed for use at another point in the building and the opening left by the rod 20 can be readily closed up without hindering the progress of the work of finishing the floors of the building. When the flooring about the beams 55 is to be poured, a suitable space, of course, would be left in the form 1 for the hooks ll so that the same could be removed after the floor 9 had set, after which the upper flooring would be completed in that portion formerly occupied by the hooks l I.

It is evident, therefore, that with my invention, each floor load is separately sustained by suspension from the steel beams immediately overhead or forming the floor above so that instead of getting a concentrated load on the shoring or prop on the lowermost floor, there is a spreading of the load so that the weight of each floor is separately maintained and properly distributed throughout the building.

Another advantage of my invention is the fact that greater expedition and dispatch is possible in the performance of a concreting job in that where it was formerly necessary to remove all of the shoring and underpinning in order to put the finish on the concrete floor, it is now possible to immediately apply the finish.

Another advantage is that the use of the turn buckle takes up the slack in the cable which is suspended from the permanent steel structure on the floor above thus creating a perfect suspension or maintenance of the concrete floor load on the floor below and ensuring the continuance of such perfect suspension and maintenance of the load during the entire floor setting process.

Another advantage is that the great amount of shoring and underpinning heretofore necessary to support the door form is practically obviated and my invention may be used over and over again and adapted to difierent conditions without the necessity of altering the form thereof.

My invention is not to be restricted to the precise details of construction shown since various changes and modifications may be made therein Without departing from the scope of the invention or sacrificing the advantages derived from its use.

What I claim is:-

A floor supporting device of the character described comprising a turn buckle, hooks and a cable permitting suspension of the turn buckle from an overhead structure, a bar forming a part of the turn buckle and arranged to pass through the floor form of a floor to be supported, a plate arranged to be adjustably positioned on the bar and adapted to engage the under side of the floor form, said turn buckle being adjustable to draw said member against said form, a second supporting plate carried by said bar, and a plurality of form engaging elements supported on said second member.

VINCENT DI GIACOMO.