US 1924346 A
Description (OCR text may contain errors)
Aug. 29, 1933. M. BLUMENTHAL COLUMN FILE AND METHOD Filed Feb. 18, 1931 NvEgroR a Patented Aug. 29, 1933 UNITED STATES PATENT OFFICE 5Claims.
I This invention relates to a column pile, that is, to a pile structure in which a metallic load bearing column is contained within the customary metallic load bearing shell, an object of the invention being to increase the load bearing capacity of the pile.
A further object is to so construct the pile that the metallic load bearing column contained therein may if desired be extended upwardly through the building, to the end that the portion of said column contained within the pile shell will constitute a positive and highly cilicient anchor for the building.
A further and more detailed object is to provide a pile including a metallic shell and a metallic column therein, said shell and column being arranged to mutually re-inforce each other in the support of the load to be carried.
A further object is to provide a new method to be followed in the driving of piles.
Other objects and aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of principles constituting the invention; and the scope of protection contemplated will be indicated in the appended claims.
In the accompanying drawing which is to be taken as a part of this specification, and in which I have shown merely a preferred form of embodiment of the invention:--
Fig. 1 is a vertical transverse sectional view through a portion of a column pile constructed in accordance with this invention.
Fig. 2 is a top plan view of the structure seen in Fig. 1.
Figs. 3 to 8 are diagrammatic plan views similar to Fig. 2 illustrating various modified arrangements, and
Fig. 9 is a diagrammatic side elevational view of a portion of a building skeleton employing column piles inlaccordance with the provisions of this invention.
Referring to the drawing for describing in detail the structure illustrated therein, and referring first to the structure Figs. 1 and 2, the reference character L indicates the pile shell. This is of the usual type now commonly in use, being simply a metallic cylinder of appropriate thickness and adapted to be driven into the earth.
The reference character G indicates the metallic column which is arranged within the cylinder.
. This column may be of any appropriate cross sectional contour but in-Figs. 1 and 2 is shown as being of H cross section and as having longitudinal marginal edge portions flanged over as at 1-1 to conform to and rest against the inner surface of the shell L in such wise that the shell and column will provide a mutual re-inforce one for the other.
The column and shell may be rigidly connected together or not as preferred, as by electric welding or other suitable bonding means as indicated at .2-2.
In some instances the column G may be driven downwardly into the shell after the shell has been driven into the earth while in other instances the column may be placed either fixedly or loosely within the shell and both driven into the earth together either with or without. a driving point at the lower end of the shell.
After the shell and column have been driven into the earth the earth, which will be within the interior of the shell in instances where no ,driving point has been used, may be removed or not as preferred. If no earth be present, or if removed, the space within the shell may be filled with concrete as H if desired. Theearth or concrete, as the case may be, may entirely fill the shell to the upper end of the shell, or otherwise, as may be deemed necessary in particular instances.
As above suggested, the column within the shell may be of any cross sectional contour. The particular contour selected, and the thickness of material used for the shell and for the column, will depend upon earth conditions and the amount of load to be carried by a given pile.
In the modification Fig. 3 an H shaped column similar to that appearing in Fig. 2 is shown, but 9 in addition thereto two auxiliary columns as 3-3 are illustrated, arranged within the open space between the opposite legs of the H.
In Fig. 4 the same H shaped column is illustrated but m this instance it is Suggested that the auxiliary columns as 4-4 may if desired be cylindrical instead of U-shaped as in Fig. 3.
In the modification Fig. 5 it is suggested that four separate H-shaped columns as 55 may if desired be placed within the shell.
In the modification Fig. 6 it is suggested that two or more cylindrical shell-like colunms as 66 one within the other may be arranged within the shell L if desired. I 105 In Fig. 7 a further modification is suggested wherein a cylindrical shell-like column as 7 is arranged within the shell L, and. within this column 7 is arranged a plurality of other columns as.88, said other columns being here indicated no as of H cross section.
shell L could if preferred be of any other cross section desired, such for instance as the square cross section illustrated in Fig. 8.
The modification Fig. 8 suggests the further idea of making up an H-shaped column from two standard U-beams bolted together.
The column or columns contained within the shell L may be of the same length as the shell L or not, as desired, and it will be understood that wherever a filler is present, whether earth, sand or concrete, as H, said filler will always serve to bond together the column, or columns, and the shell so that the column and shell will mutually re-inforce each other through the medium of said filler even though there may be no actually metallic contact between the column and the shell. This filler bond will also effectually prevent the likelihood of any longitudinal movement of either of these elements without the other.
The filler bond H may be utilized as auxiliary to the bond 2 in some cases while in others it may be utilized without the presence of the bond 2, dependent upon the requirements of different building undertakings.
The lower ends of the column and shell may be at the same or different levels, particularly where the two elements are driven separately in which instance the lower end of each will stand at a level dependent upon the point of refusal as will be readily understood.
The upper ends of the column be at the same or different levels, according to different requirements.
If desired the column, or some one member thereof, may be extended above the upper end of the shell and may be continued upwardly throughthe building as indicated in Fig. 9 as one of the main supporting columns as 9-9 of the building, or one member of the pile column may extend part-way through the building, as at 10, and another member may extend further up through the building, as at 11 in Fig. 9.
It is of course not to be supposed that the portion of the column which extends upwardly above the shell as a building column is necessarily an integral part of the portion of the column Which'is within the shell. The portion which is within the shell as well as the portion which is above the shell may be made up of any desired number of longitudinal sections connected together as by tie-plates 12 or otherwise in the usual manner, and these sections may be connected together at different time periods according to the dictates of necessity in'this regard.
It will be seen that a pile constructed to include a column as herein disclosed will possess a very great load supporting value and that all of its parts may be readily driven into the earth without any change in the position of the driving apparatus, and that the structure provides not only a highly efiicient load supporting element but also is admirably adapted to serve as an anchor against wind pressures such as present a very serious consideration in the construction of very tall buildings. These piles may be used in the construction of building foundations, bridge piers, docks, retaining walls, and in many other relations where highly efficient piles are d shell may of the shell and continues upwardly above the upper end of the shell as a building column,
the entire column, and the shell within which its lower portion is contained may be considered as one continuous metallic pile extending from the tip, or bottom end of the shell or column upwardly to. the top of the building. The different structural parts of the building will be connected to this pile at different levels' in the length or height of the pile and the shell will be anchored firmly within the earth, thereby providing a structure which will be capable of standing excessive wind pressures and which will be to a greater or less extent earthquake proof.
In some instances it may be desirable to provide angle seats as 13, or othensuitable elements, by which to connect the columns G with the shells L. These angle seats may be fixed rigidly to the columns and simply rest against the upper edge of the shells, or they may be fixed rigidly to both the columns and the shells, as preferred.
As many changes could be made in this construction without departing from the scope of the invention as defined in the following claims, it is intended that all matter contained in the above description, or shown in the accompanying drawing, shall be interpreted as illustrative only and not in a limiting sense.
1 As hereinabove suggested it is a feature of this invention to provide an improved method to be followed in the sinking of piles. To this end the invention proposes that in some instances the column or columns within the shell may be driven after the shell has been driven. In this case the shell will be driven open-ended into the earth so that the earth will well up into the interior of the shell and be confined therein in a somewhat compressed condition, and the column or columns will be driven downwardly into this confined and compressed earth thereby further compressing said earth. By following this method the column will be supported not only within the shell but also within a body of confined and highly compressed earth resting squarely and solidly against the earth beneath the lower end of the pile shell.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
1. A column pile comprising a metallic shell and a metallic column arranged within the shell, said shell and said column being adapted to constitute a single load supporting structure, said column continuing upwardly above the upper end of the shell to constitute a supporting column of a building, and a metallic seat member fixed to the column and resting downwardly against the upper end portion of the shell to retain the column against relative downward movement through the shell.
2. As an article of manufacture, a column pile adapted to be driven into the earth said column pile consisting of a metallic pile shell and a metallic column, and said column being arranged within the shell in fixed engagement with the shell so that said column and shell are adapted to be driven as a unit into the earth and to co-operate with each other in the support of a load, and said shell being open at its lower end and intended thereby to receive upwardly into' the shell into supporting relation about the column a portion of the earth into which the shell may be driven.
3. A column pile comprising a metallic shell and a metallic column arranged within the shell, said column being of H cross section and having the longitudinal edges of the legs of the H flanged laterally and all d p to rest fiat against adjacent inner surface portions of the shell so that said column thereby fits snugly within said shell in engagement therewith.
4. The herein described method of sinking a load supporting pile, which method consists in.
driving endwise into the earth a hollow open ended pile shell so that earth into which the shell is driven enters the interior of the shell-through the open lower end of the shell and is confined within the shell, and then driving downwardly into the shell and into the confined earth a separate load supporting column so that said column will be supported by said confined earth.
5. The herein described method of sinking a load supporting pile, which method consists in driving endwise into the earth a hollow open ended pile shell so that earth into which the shell is driven enters the interior of the shell through the open lower end 01' the shell and is confined within the shell, driving downwardly into the shell and into the confined earth a separate load supporting column into load supporting relation in said confined earth, and providing positive abutment means interengaging between the shell and the column serving to transmit load from the column to the shell and prevent undesirable downward movement of the column into said confined earth.
' MAURICE BLUMENTHAL.