US3036829A - Precast column attaching means - Google Patents

Description

-May 29, 1962 A. WARRING PRECAST COLUMN ATTACHING MEANS Filed OOb. 27, 1958 i-'i .E

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Arron/ys United States Patent Gliee 3,036,829 Patented May 29, 1962 3,036,829 PRECAST COLUMN ATTACHING MEANS Alfred Warring, Box 510, Bay City, Mich. Filed Oct. 27, 1958, Ser. No. 769,851 1 Claim. (Cl. 269-189) This invention relates `to new and useful improvements in means for erecting precast concrete columns, and, more particularly, to Ian improved supporting apparatus for erecting precast concrete columns without the need for temporary supporting guy wires, shoring, braces and the like. The use of precast or prefabricated concrete columns in the buiding' construction field has increased considerably in recent years. Heretofore, when erecting precast columns, it has Ibeen necessary to use ternporary guy wires, lshoring, braces and the like to retain these members in place in the correct position during the time when these members are joined together by a concrete mixture applied in the field -at the erection site. Under such conditions additional work cannot proceed until the joint concrete mixture has hardened a-nd, therefore, subsequent erection is slowed down. Accordingly, it is the primary object of this invention to provide a novel and improved supporting apparatus for erecting precast concrete columns which is capable of retaining these members in place while the connecting joint field concrete mixture is yapplied and hardened and which will permit the immediate and continuous erection of and connection thereto of further similar members without any costly time delay. I

It is still `another object of this invention to provide a supporting apparatus of the class described which permits a column to be quickly erected on -a footing vand another adjacent column immediately erected and to immediately erect beams to the columns Iand to maintain these members Ain proper position until the joint field `applied concrete mixture or grout is set. Also it permits the column end to be set in live grout, without supporting shims, which distributes the column weight uniformly across the footing base.

It is a further object of this invention to provide a supporting apparatus of the class described which is simple and rugged in construction, economical of manufacture, eicient in operation, `and well suited for the purpose for which it is designed.

Other objects, features `and advantages of this invention will be apparent from the following detailed description and :appended claim, reference being had to the accompanying drawings `forming a part of the specification wherein like reference numerals design-ate corresponding parts of the several views.

In the drawings:

FIG. l is a plan View of -a supporting apparatus embodying the principles of the present invention, shown as supporting `a precast column in `a footing, taken along the line 1-1 of FIG. 2, and looking in the direction of the arrows;

FIG. 2 is Ian elevational sectional view of the structure illustrated in FIG. l, taken along the line 2 2 thereof, and looking in the direction of the arrows; and,

FIG. 3 is a side elevation view of a maple board employed in the invention.

Referring now to the drawings, wherein is shown a first supporting apparatus embodying `the principles of the invention, the numeral indicates a precast concrete column which is to have Ithe lower end thereof mounted in the hole 11 in the footing 12. The supporting apparatus of the present invention comprises a first pair of elongated support members as 13 and 14 which are shown as a pair of structural steel channels that extend outwardly beyond the sides of the column 10 and are disposed on opposite sides of the column. As

shown in FIG. 2, the channel 13 is provided lat each end thereof with a supporting bolt 15. Each of the bolts 15 is adapted to be mounted through the holes 16 which are formed through the upper and lower flanges 17 and 18, respectively. E-ach of the bolts 15 is adapted to be adjustably retained relative to the channel 13 by means of `the nuts 19 and 20. Fixedly secured to the lower end of each of the bolts 15 is a pad or at plate which functions fas ra supporting foot member. The pads 21 may be secured to the 'bolts 15 by any suitable means, as by welding.

The channels 13 :are provided with the stilfening plates or gussets 22 which are fxedly mounted between the flanges 17 and 18 on opposite sides of the lhole 16. The channel 13 is further provided with additional bolt holes as 23, routwardly of the bolt hole 16, whereby the bolt 15 may be used in the holes 23 for mounting the column 10 on different size footings as 12. The channel 13 is provided with additional st-iener plates or gussets 24 on opposite sides of the holes 23.

The channel 13 is provided with the spaced apart elongated holes 25 and 26 through which is mounted one end of each of the studs 27 and 28 which are threaded on the ends thereof. As shown in FIG. 1, the channel 14 is constructed the same =as channel 13 Iand the corresponding parts are marked with the same reference numerals followed by the small letter a. The channels 13 `and 14 are adapted to be mounted on opposite sides of the column 10 with the pads 21 and 21a resting on the upper face of the footing 12. The channels 13 and 14 'are adapted to be iixedly secured to the column lll by means of the studs 27 and 2S, bearing plates 29a, and suitable lock nuts as 29. A maple board as 3G and Sila is inserted between the channels 13 and 14, respectively, land the sides of the column 10, to increase the frictional value of the contact therebetween `and to take up the minute irregularities on the surface of the concrete column 10. As shown in FIG. 3, the maple boards 30 are provided with elongated holes as 31 and 32 for adjustment purposes.

The embodiment of FIGS. 1, 2 and 3 is adapted for erecting a precast concrete column on a footing and further includes the second pair of 'structural steel channels or elongated support members 33 and 34. As shown in FIG. 1, the channels 33 and 34 are provided with the bolt holes 35 and 35a, respectively, which function the same as the holes 25 and 26 in the channels 13 and 14. The channels 3'3` and 34 are adapted to be xedly secured to opposite sides of the column 10 and to rest cross-wise on the channels 13 and 14. The threaded studs 36 and 37 are adapted to pass through the holes 35 and 35a and be secured in place iby means of the nuts 38. Maple boards as 39 and '39a are also used between the channels 33 and 34 and the column 10 Ifor better friction grip purposes. A

Experience has shown that with a supporting apparatus of this type, a precast concrete column may be erected on a footing Ias 12 with the lower end of the column extended down into the hole 11 in a position whereby the space around the end of the column in the hole 11 may be lled with grout or iield concrete and a secure joint thus made between the footing and the column. The supporting apparatus of the present invention makes it possible to quickly and easily erect and iixedly secure in place a precast concrete column in a supporting footing. The studs 15 and the nuts 20 provide a means whereby the column 10 may be minutely adjusted to the desired position relative to the footing 12.

While it will be apparent that the preferred embodiment of the invention herein disclosed is well calculated to fulll the objects above stated, it will be appreciated that the invention is susceptible to modification, variation and change Without departing from the proper scope or fair meaning of the subjoined claim.

What I claim is:

In a column erecting device for retaining a precast concrete column in a vertical position, spaced apart from a footing, the combination of, a rst pair of elongated channel members for mounting against a rst pair of opposite sides of the column; a tirst pair of threaded studs interconnecting said rst pair of channel members and having the ends thereof passing through elongated holes in the channel members; said rst pair of threaded studs being disposed on opposite sides of the column and being provided with threaded nuts for securing said first pair of channel members to the column; a threaded bolt extended vertically through the upper and lower flanges of said first pair of channel members yat each end of each channel member; a nut threaded on each end of each of said threaded bolts for locking engagement against the upper and lower flanges of the channel members; a support plate Xed to the lower end of each of said threaded bolts for seating on the footing; a second pair of elongated channel members for mounting against a second pair of opposite sides of the column and being disposed perpendicularly to said rst pair of elongated channel members and seated on the same; a second pair of threaded studs interconnecting said second pair of channel members and having the ends thereof passing through elongated holes in said second pair of channel members; said second pair of threaded studs being disposed on opposite sides of the column and Ibeing provided with threaded nuts for securing said second pair of channel members to the column; and, a friction board disposed between each of the channel members and the column.

References Cited in the file of this patent UNITED STATES PATENTS 1,031,049 Conzelman July 2, 1912 1,408,301 Jeter Feb. 28, 1922 2,510,717 Roos June 6, 1950 2,662,391 Neil Dec. 15, 1953 FOREIGN PATENTS 376,308 Great Britain July 8, 1932

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