US2110253A

US2110253A - Metal piling

Info

Publication number: US2110253A
Application number: US123076A
Authority: US
Inventors: Nedden Gerhard Zur
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-06-05
Filing date: 1937-01-29
Publication date: 1938-03-08
Anticipated expiration: 1955-03-08

Description

March 8, 1938. ZUR NEDDEN 2,110,253

METALPILING Filed Jan. 29, 19,37 2 Sheets-Sheet 1 [Mei 6507? @QEBL/QED zur M5005,

Marchs, G. ZUR NEDDEN 2,110,253 METAL FILING Filed Jan. 29, 1937. 2 Sheets Shft 2 Patented. Mar, 8, 1938 A vUNFTED T TE ENT OFFICE Application January 29, 1937, Serial No. 123,076

. In Germany June 5, 1934 2 Claims. (or. 61-39) This invention relates to metal piling of the box-type, preferably of the H-beam type, the elements of which are connected by H-shaped locking bars which connect the flanges of the 5 successive H-beam elements, and has for one of its objects the provision of a novel piling construction including an anchorage which is connected directly to the piling and avoids the use of waling members and the like.

10 Steel piling bulkheads and the like are usually held in place by tie rods, and in order to transmit the loads from the piling to the tie rods, a waling made up of two channel sections or other suitable shapes is used which is placed at the ele- 5 vation of the tie rods, either in front or in back of the piling wall. Placing of the waling in front of the wall is objectionable when a piling wall is used in connection with docks and the like since boats, during rising or falling of the tides, are

20 forced against the waling and protruding structural elements. The nuts and ends of the tie rods protrude through the waling, and when the waling is in front of the piling wall these nuts and tie rod ends severely damage vessels contact- 25 ing therewith. The placing of the waling in back of the piling wall has a disadvantage in that the nuts do not rest directly on the channel waling,

but are connected with two riveted or welded connecting pieces carried by the waling, and this construction is very heavy and expensive.

The present invention has many advantages over the prior art structures. In the first place the box-type of piling to which this invention is particularly adapted for use lends itself par- 35 ticularly well to receive a filling of concrete, and

when filled with concrete the box-type piling forms a flat arch between successive tie rods so as to carry the earth pressure load from the piling members to the tie rods. Another advantage 40 is that the invention lends itself to a construction in which the nuts for securing the tie rods to the piling members or elements are adapted to be mounted within the box-type'elements and bear against the inside faces of the rear flanges of 45 the piling sections.

By filling the boxes with concrete to or above the elevation of the tie rods, the necessity for waling is eliminated and the whole structure is materially stiffened and protected against corrosion. The concrete may be extended down into the piling to any point desired by placing suitable filler members or blocks therein. The

additional cost of the concrete is less than the cost of waling. v 55 The placing of the nuts for the tie rods within the box-like piling structure is a simpleoperation. These nuts may be. lowered lnto'position by the use of any suitable tool and a shortlength of tie rod may be threaded therein in a manner to be hereinafter described. l

If a waling should be found desirable in any instance, it is still'of material advantage to place the nuts inside of the box-likestructure since the placing of the nuts on the inside of the structure will eliminate the necessity for the expensive connecting pieces which are required in the types of piling heretofore used. Also, a considerably lighter waling may be used if waling is found necessary since with the nuts on the inside of the box-like piling a material part of the load of the tie rod may be carried directly by the piling structure itself.

In the accompanying drawings I have illustrated a specific form of H-beam piling assembled in a box-like structure and having tie rods connected thereto in accordance with my invention.

Figure 1 is a horizontal sectional view of piling and tie rod assembled in accordance with my invention,

Figure 2 is a sectional elevation taken on the line 11-11 of Figure 1,

Figure 3 is a sectional view in elevation through the piling showing one end of the tie rod in position; and I Figure 4 is a sectional view in elevation similar to Figure 3 showing the piling entirely filled with concrete.

Referring more particularly to the drawings, numeral I designates the tie rod as a whole composed of a relatively short forward section or piece A and a rear section or'anchor portion B; the sections A and B being joined by a universal joint l2. The forward section A of the rod i is projected through a hole 2 which may be burned 40 in the piling structure or otherwise suitably formed. The holes 2 are preferably formed at the juncture of two piling sections, the piling being designated by the

numerals

3 and 4. A nut 5 is provided into which the end of the tie rod. 5 I is threaded. The nut 5 is preferably of such size that it will not turn within the piling struc, ture, that is, it is of a width substantially equal to the distance between the webs of the adjacent piling sections. The nut may be lowered into position by the use of any suitable tool, or, if

. desired, a cable may be used to lower the nut 5 into position. The nut is positioned with its one face in contact with the inside faces of the rear flanges of the piling sections 3 and l, as at 8.

After the rods l are threaded into the nuts 8 the concrete filling Ill is poured into the piling sections. It is essential that the concrete filling be at the elevation at which the stresses oi'the earth or other matter are being applied, there-- fore, the concrete filling I mayextend from a point slightly below to a point slightly above the point of application of such stresses. I prefer, however, to entirely flll'the pilingsections with concrete since this stifiens, thewholestructure and protects the whole structurea'gainst corrosion. Y

I When the concrete filling i 0 is terminated short of the lower end of the pilingor short of the earth or rock level in the piling, stop or filler members "I" are inserted therein.

the arrows 9. Such stresses are carried, by the concrete filling HI andthe piling sections to the tie rods I. 11 the spacing of the tie rods should be extremely wide, or the earth pressure the ex treniely high, suitable reinforcing indicated by the numeral ilin Figurellof the drawings, may

be used to further strengthen thejstructureIt I 25 will be understood also that if the tie rods I are spaced sufliciently close together, orii the stresses against ,the wall are of alow magnitude, the

Qpiling assembly maybe usedwith very satisfac-' toryresults'without the' concrete filling I0. I

The stresses of the' earth pressure are indicated in the drawings by;

- ,nected by locking bars, of tie rods spaced at pre- It will be understood that while I have shown v rny invention as particularly adapted for the use of piling of the H-beam type, the invention is not limited thereto, but it is adapted for use with any form of piling of the box-type.

I claim: v

l. The combination with piling walls of the box-type, of tie rods. spaced at predetermined distances alongrsaid wall and connectedto nut members mounted entirely within said wall and bearing against the inner rear face thereof, said wall being provided with a filling of concrete placed at the elevation at which stresses of earth pressure are applied so as to form a flat arched eflect between the successive tie rods.

2. The combination with piling walls of .the boxtype composed of H-beam sections condeterrnined distances along the said wall and connected to nut members mounted entirely withstresses or earth pressure are applied so as to giorm a flat. arched-eflect between the successive .fltiercds.

GERHARD .m NEDDEN.