Патент USA US2133563код для вставки
Oct. 18, 1938. ` _1_ A_ PARKS, JR" ET AL PILE 2,133,563 SPLICER Filed NOV. ll, 1935 È? 2 Sheets-Sheet 1 oct. 1s, 193s». J. A. PARKS, JRI., ET Al. 2,133,563 PILE SPLICER Filed Nov. ll, 1935 2 Sheets-Sheet 2 @une Patented oct. 1s, 193s ~ 2,133,553 UNITED STATES PATENT OFFICE 2,133,563 PILE sPLIcER Joseph A. Parks, Jr., Milton, and John Upton, Wayland, Mass., assignors, by mesne assign ments, to Anderson Products, Incorporated, a corporation of Massachusetts Application November 11, 1935, Serial No. 49,170 14 claims. (c1. 61-63) This invention relates to a method and means of splicing structural columns. While this invention may be used to splice structural steel col- The upper end of the pile is wedged in position under the structure it is intended to support and thereafter secured thereto. umns, its most common application is in the ` Since the big bulk of the piles in harbor use C1 splicing of wooden columns, particularly wooden support vertical loads principally and are rarely 5 piles such as are commonly used in river and harbor Work either as the support for docks, piers or other structures positioned over the water or in splicing piles for other marine purposes such as 10 slips, retaining walls, or for any other purpose where it is necessary from time to time to replace a pile, In coastal waters of the United States certain marine animals particularly amphipod Crustacea l5 known as the Chelura, Limnoria and the teredo have infested many harbors where they were previously entirely unknown. These borers feed actively on wood and are particularly destructive to piles if the piles had not been originally treated -20 with some protective substance, as for example, creosote. is relatively loose. In the harbors where these amphipoda are destructively prevalent at present, practically all of the piling was placed before these creatures made 25 their appearance in these particular localities. As a consequence, therefore, the big bulk of the pil- ing'in these places is entirely unprotected and subject to the ravages of the aforementioned 30 35 subjected to serious lateral strains, the aforemen tioned procedure might seem to be a satisfactory solution. However, in actual practice it has been found impossible to cut the end of the old pile and the bottom end of the new portion that is to be 10 placed thereon at such angles that when the new portion has been positioned the end surfaces will be in contact throughout their areas. Tlns >re sults in the entire vertical load being carried by relatively small portions of the engaging faces l5 with the result that the replaced upper portion soon settles materially under the pressure to say nothing of the fact that it will often slip sideways vif there is any particular angularity to the en gaging faces since the cylindrical retaining shell 20 _ Thus, by the old method a pile repaired in this manner was relatively unsatisfactory due te its inabilitir t0 properly SllpDOl‘t the 10a-C1 fOl’ 21115’ length of time without settling; to say nothing 25 of the fact that it had practically no lateral strength. By our invention which will be disclosed here Crustacea. inafter, we are enabled to position a new section As the pile is gradually eaten away there comes a time when it can no longer properly support the load it is called upon to carry and it is necessary, therefore, to replace the damaged pile in some of pile on top of the old portion remaining in the 30 bed in such a way that it will have substantially all the properties of the original pile, that is to say, the new portion will not settle nor can it shift way. Heretofore the practice has been to send a diver down alongside the pile and, by means laterally with respect to the bottom portion. At the same time thecost of replacing the pile by our 35 method is less than the cost of the present method. In the accompanying drawings: Fig. 1 shows a pile eaten away to such an extent that replacement is necessary. Fig. 2 shows the damaged portion ci the pile 40 removed and our splicing unit about to be lowered of a power saw operating in a horizontal plane, cut the pile off a short distance above the mud line or the bottom from which the pile projects. 40 Then, upon unfastening the pile from the struc-v ture it is assisting to support at its upper end, the damaged portion of the pile may be removed. That part of the pile which remains in the bottom will generally be found to be in good condition as 43 the borers do not usually attack that portion of the pile close to the bottom or that part which is ‘in place. ' - Fig. 3 shows our splicing unit in place on the bottom portion of the pile. Fig. 4 shows the new pile in position and se- 45 cured to the lower portion by our splicing unit. embedded in the bottom. ’ Fig. 5 is a vertical section on the line 5-5 of Thereafter a new pile about the same length as y Fig. 3. the damaged portion that has been removed and 5o roughly the diameter of the portion remaining in the bottom is lowered into place on top of the >bottom portion. Heretofore the old and the new parts have been held in alignment by means of a loosely fitting, cylindrical metal sleeve which sur-l .55 rounds the old and the new portions at the joint. l i Fig. 6 is a vertical cross-section of our pile splicing unit. 50 Fig. '7 is a vertical view of our pile splicing unit. Fig. 8 is a perspective view showing the means used to carry the unit to its position over the pile. Fig. 9 shows means for preventing our splicing unit from settling into a soft bottom. 55 Y 2 2,133,563 Fig. 10 shows other means for preventing our _for in the form of helical member 30 to which unit from settling into a soft bottom, being a is wired or otherwise secured at various points about its circumference vertical reinforcing mem view on line IU-Ill of Fig. 11. Fig. 11 is a vertical cross-sectional View on the bers 32. Both the helical and vertical reinforce ments are suspended above the bottom of the line II-II of Fig. 10. unit by means of the wires 34 which may be at Referring now more specifically to the draw ings, Figs. 1 to 4 inclusive show the general series tached to the main wire supports I8, as shown, or to the shell I4 if more convenient. of operations involved in the practice of our in The size of the unit in actual practice is about vention, while Figs. 5 to 11 inclusive disclose the 36 inches high and 20 inches in diameter with 10 n 10 details of construction of the unit. In Fig. l a pile 2 having a lower end 3 has been the helical reinforcement 30 of sufficient diam eter to permit the entrance of any pile ordinarily driven into the bottom 4 and is shown as sup porting a structure 6, which in this case is above encountered. With the shell I4, bottom 21 and reinforcements th-e surface of the water 8. 36 and 32 all suspended from the spider 22, as 15 Due to the destructive work of the aforemen 15 tioned amphipoda the pile has been eaten away shown at Fig. 8, the unit is then filled with con at Ii) to such an extent that it is materially crete to within a few inches of the top, although weakened and should be replaced if it is to con-l if waste of concrete is no consideration, the unit could be entirely ñlled. It is believed clear from tinue as a proper support. In carrying out the method of our invention the construction shown in Fig. 6 that the weight 20 20 of the concrete will be carried by the bottom 21 a diver is sent down and on inspecting the con dition of the pile, saws it off at I2 as in Fig. 2, which in turn is supported on ring I6 by wires I8, and that the hooks 24 >do not carry the weight which point is below the damaged portion of the pile. In the best practice it is contemplated that 25 the upper end i2 of the pile 3 shall be a distance above the bottom equal to approximately half the length of our splicing unit. In practice the length of the projecting pile is about 18 inches. If the point at which the pile is cut happens 30 to be closer to the bottom, then a suitable amount guided by the diver to a position over end I2 of of the bottom immediately surrounding the pile portion 3 of the old pile. is cleared away by the diver so that there will be the proper distance from the upper end of is lowered on the pile so that the circumference of the upper end of the pile encounters the sec tions 26 of the bottom 21. As the unit is lowered the pile 3 to that part of the bottom immediately 35 surrounding the pile. The upper portion of the damaged pile is then removed, the supported structure 6 being main tained in position temporarily by adjacent piles. With the bottom portion of the pile thus pre 40 pared it is now in condition for the application of our splicing unit. The unit is shown in detail in Figure S5, 6, '1, 8, 9 and 10. The unit consists of a cylindrical shell I4 open at both ends and preferably made of 45 sheet metal which may be cheaply and easily fabricated. Positioned within the shell a short distance above the bottom is a ring I6 ñtting the shell rather closely, but still free to move with rela tion thereto. The ring I6 is suspended by three 50 wires I8 positioned 120° apart, as shown in Fig. '1. The upper ends of the wires I8 have hooks 20 for engagement with cooperating means on a spider 22 shown in Figs. 2, 3 and 8. Attached to the top of the shell and spaced 120° apart are the hooks 24 which are adapted to engage the spider 22 in the same manner as the wires I8. By the foregoing arrangement both the shell I4 and the ring i6 may be suspended from the 60 spider 22. To provide a bottom for this unit we use a number of trapezoidal shaped sheet metal sec tions 26 the wide ends of- which rest on the ring I6. The various sections 26 form a pyramidal bottom 21 the small ends of the sections engag 65 ing a keystone member 28. It is clear, however, that the bottom may be made of sections of vary ing shapes provided they meet to give the neces sary truss action to support any loads that may be 70 of the concrete, but simply hold shell I4 in posi tion. The clearance between ring I6 and shell I4 and between the sections 26 of the bottom 21 is sufficiently small so that the concrete cannot leak through. The unit is then lowered into the water and imposed thereon. ' The bottom construction just described results in what we term a collapsible bottom the action of which will be described hereinafter. As our splicing unit is subsequently to be filled 75 with concrete, we provide reinforcement there Thereafter the unit still farther, the collapsible bottom engages the circumference of the top of the pile, resulting in the following composite and continuous action thereafter. When the pile encounters the collapsible bot tom, the bottom and the concrete supported thereby are necessarily retarded in their descent. However, the shell I4 and the supporting ring I6, because of their inertia, continue downwardly. As the ring I 6 commences to fall away from the outer edges of the bottom sections 26, the . weight of the concrete causes the sections to pivot about the circumference of the upper end of the pile, the outer ends of the sections 26 rotating inwardly to finally slip off the inner circum ference of ring I6 while at the same time the inner ends of the bottom sections 26 necessarily rotate outwardly. When this action has been completed, the shell I4 will be resting on the bottom and theV sec tions will be in substantially the position shown , in Fig. 3. In cases where the harbor bottom is not sum ciently firm to prevent the shell from cutting thereinto, we provide a stop either in the form of a plate of sheet metal having a hole therethrough slightly larger than the pile which may be dropped over the end of the pile prior to the positioning of the container as shown in Fig. 9, or in the form of outwardly extending flanges project ing from the lower edge of the bottom of shell I4, as in Figs. l0, 11. It will also be observed in Fig. 3 that the helical reinforcement has also been carried down about the upper end of the pile. The keystone 28 is resting on the upper end of the pile and the sev 70 eral sections 26 are in a generally vertical posi tion in the concrete about the pile. The diver then disconnects the'spider from the various wires that have supported the shell, the bottom and the reinforcement and the spider is withdrawn. 15 3 2,133,563 The new section of pile 36, which may be cut several inches shorter than the damaged portion previously removed, is then lowered into the wa tional generally pyramidal bottom, supported by ter. The diver guides the lower end of the new a member positioned within the lower part of section into the upper end of sleeve i4; the pile is forced downwardly through the concrete which is of a consistency to permit entrance of the pile without undue diñiculty. When the pile has en tered the concrete to a suiiicient depth, the upper said casing. ll end of the new section 36 is swung under the structure 6 which is to be supported. The combined buoyancy of the concrete in which the end of the pile 36 is resting and the water thereabove is sunicient to cause the pile 36 to tend to move upwardly against the structure 6. Because of this fact the new pile 36 is self positioning and no wedges need to be positioned between the upper end of the pile and the struc ture 6. See Fig. 4. The concrete thereafter hardens, resulting in the old embedded portion 3 of the pile and the new section 36- being firmly and adequately spliced together by a reinforced concrete cyl inder. Since the space between the abutting ends 25 of the pile is completely filled with concrete, it is immaterial whether the ends of the pile are cut square or not since the load is distributed over the entire area due to the fact that both ends of these members are always in contact with con 30 crete therebetween and a direct transference of load is effected thereby. 5 6. For use in connecting columns, a tubular casing having a sectional pyramidal bottom therefor adapted to open when moved upwardly by engagement with a column, said bottom nor mally maintained in position within said casing by a ring independently suspended within said casing, and a circular reenforcing member posi tioned within said casing above said bottom. 7. A containing unit comprising a tube, sus pension means therefor, a sectional bottom with in said tube suspended from said suspension the repaired pile is stronger at the point of splice 35 than the original pile, and there is no possibility means, and reenforcements within said tube sus pended from said suspension means whereby said tube, bottom and reenforcements may be main tained in ñxed relative positions. 20 8. A bottom for a container comprising a cir cumferentially extending ring, a plurality of sec tions arranged to form a generally pyramidal bottom, the outer end of each section supported by said ring, the inner end of each section sup ported by its coaction with the other sections. 9. A concrete positioning device comprising a tubular shell, an interiorly disposed supporting member Within said shell, a sectional trussed bot tom generally pyramidal in form; said bottom 30 of the new portion of the pile settling with rela said shell. Y 10. A concrete positioning device comprising a tubular shell and a collapsible trussed bottom generally pyramidal in form, said bottom com 35 tion to the old portion nor can the new portion prising a plurality of tapered sections, a member bordering the internal circumference of said shift laterally with respect to the old portion. While the foregoing description discloses a shell, means connected to said member and ex 40 specific means of practicing our invention, we do not intend that our invention shall in any way be limited thereby, but only as deñned by the appended claims. We claim: 1. A concrete positioning device comprising a tubular shell and a sectional arched bottom gen erally pyramidal in form, a ring secured within said shell, said bottom maintained in position by vertical engagement with said ring and by hori zontal radial engagement with said shell. _ 2. A collapsible bottom for a concrete container comprising tapered sections supported at their wide ends by a ring and at their small ends by a keystone. 15 supported by said member to substantially close By the foregoing means and method we are able to repair damaged piles in such a way that 45 5. Means for positioning a quantity of con crete, comprising a tubular shell having a sec ' 3. For use in connecting columns, a unit com prising a tubular casing having a sectional truss like bottom generally pyramidal in form, a sup porting ring positioned within the lower portion 0f said’casing and supporting said sectional bot tom, means connected with said ring and extend ing upwardly within said casing and carrying the vertical load to which said ring and bottom are . subjected, circular reenforcements within said casing and means for suspending said reenforce ments in fixed relation with said casing and bot tom. 4. A containing unit, comprising a tube, de tachable suspension means therefor, a pyramidal sectional bottom within said tube detachably sus pended by members connected with said suspen sion means, and reenforcements suspended in fixed relation with said bottom within and sub stantially concentric with respect to said tube. tending upwardly for maintaining said member in position, said sections maintained in position 40 at their outer ends by engagement with said mem ber and at their inner portions by mutual truss like action. 11. Means for positioning a quantity of con crete, comprising a tubular shell, interiorly cir 45 cumierentially extending means fixed in relation to said shell, a bottom comprised of independent sections arranged to form a generally pyramidal structure, the outer ends of said sections resting on said means, and the inner ends of said sec 50 tions supporting each other. 12. A container comprising a tubular shell, an interiorly circumferentially extending member secured at the lower portion of said shell, and a bottom comprised of independent sections, said 55 sections converging at the center to support each other, the outer ends of said sections resting on said member. 13. A containing unit, comprising a tube, sus pension means therefor, a sectional bottom with 60 in said tube suspended by means connected With said suspension means, and reinforcements with in said tube substantially concentric therewith. 14. Means for positioning a quantity of con crete comprising a shell, a generally pyramidal 65 sectional bottom therefor, supported by a cir cumferential member maintained within said shell, and common suspension means whereby said shell and member are maintained in ñxed relative positions. JOSEPH A. PARKS, JR. JOHN UPTON.