CA2036661A1 - Methods and apparatus for jacking reinforced concrete columns - Google Patents
Methods and apparatus for jacking reinforced concrete columnsInfo
- Publication number
- CA2036661A1 CA2036661A1 CA002036661A CA2036661A CA2036661A1 CA 2036661 A1 CA2036661 A1 CA 2036661A1 CA 002036661 A CA002036661 A CA 002036661A CA 2036661 A CA2036661 A CA 2036661A CA 2036661 A1 CA2036661 A1 CA 2036661A1
- Authority
- CA
- Canada
- Prior art keywords
- column
- jacking
- clamping
- facings
- clamping device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Abstract
ABSTRACT OF THE DISCLOSURE
The method of jacking a reinforced concrete column and the load borne by it which includes the steps of (1) assembling a clamping device around a column, (2) positioning the clamping device at a position above a portion of the column which is to be repaired or replaced, (3) clamping the clamping device to the column, (4) interposing a plurality of jacks between the clamping device and a second clamping device or other support, and (5) raising the pistons of the jacks to support without substantially raising the load, the clamping device, and the part of the column located above the portion to be repaired or replaced.
A clamping device for clamping reinforced concrete columns which is adapted to be assembled around such a column, has clamping faces which extend substantially completely around the outer face of the column and are faced with conformable, non-adhesive material, such as oak planking, and includes inter-mediate means adapted to bear upon or carry a plurality of jacks.
The method of jacking a reinforced concrete column and the load borne by it which includes the steps of (1) assembling a clamping device around a column, (2) positioning the clamping device at a position above a portion of the column which is to be repaired or replaced, (3) clamping the clamping device to the column, (4) interposing a plurality of jacks between the clamping device and a second clamping device or other support, and (5) raising the pistons of the jacks to support without substantially raising the load, the clamping device, and the part of the column located above the portion to be repaired or replaced.
A clamping device for clamping reinforced concrete columns which is adapted to be assembled around such a column, has clamping faces which extend substantially completely around the outer face of the column and are faced with conformable, non-adhesive material, such as oak planking, and includes inter-mediate means adapted to bear upon or carry a plurality of jacks.
Description
2 ~_~
'., . ~9 Field of the ~nvent1On. ~y invention rel~ to ~a~k-7 lng me~chod~ and ~pp~ra~u~, ~nd more par~clcularly ~o m~thod~ ~n~
8 ~ppar~u~ for ~ack~ng reinf~rced concrete column~ and l:he load~
9 ~rne ther~by durlng ~che repair or reinforoement of ~ctiosl~ o~
10 such column~, the in~ertion thereirlto of 8~i8mi~ i~ol~tor~, or 11 the l-i ke .
12 D~=., ~etbods and app~ra~us 13 for ~acking t:olumn3 alnd the loa~s ~rn~ there~y are known in th~
14 prlor art.
lS For example, metbod~ and appar~us or ~acking 3teel lt; I-beam column~ ~nd the loada borne thereby durlng the ~p~n3ic~n 17 of build~ng ~tructure~ are ~hown and de~cribed ln Unl~ed S~ate~
18 P~tent No. 4,058,952 is~ued to Fr;~nk ~. Donnelly on 23Ovemb~r 22, 19 19~7.
Fur~cher, method~ ~nd appar2~us or ~cking eolumn~ and ~1 th~ loads borne thereby during ~he erec~lon o~ multi-story build-22 ings are shown and de~crlb~d in Unit~d St~t~s P~ten~ NQ. 3,828~513 ~3 is~ued to P~ter M. Vanderklaauw on August 13, 1974.
24 The method~ and ~pparatu3 o~ ~onn~lly, how~ver, ~re 25 limited to u~e with th~ par~i¢ul~r tele3copic I-be~ column ~y~-26 tem ~hich i~ a ~tructur~l featur~ of the lnvention of Donnelly, 27 an~ thu~ do not provide a ~olutlon to the problem of ~acklng 28 ex~ting reinforced aon~rete column~ and the load~ borne thereby.
29 The me~hods and apparatu~ of Vanderklaauw are 11mlted 30 to u~e in the 2rection of mul~ tory bullding~, all of th~
31 column~ of such multi-~tory bullding~ be1ng formed a~ the b~e-32 mcnt level, on~ floor at a time, and then ~acked up to permit . ~ fJ 3 ~
1 the ~orm~ ng o the next one ~tory column 3egm~n~ irnlnadia~ly 2 beneath. Thu~, the methods and appar~tu~ of Vanderklaauw ~o not ~ provide a ~olu~lon ~o thel probl~3m o rep~ir~ng or ln~0r~1ng n~w 4 ~gmerlt~ or o~her elem~nt~ in~o lnt~rmedlate por~ion~ o~ ~xi~tlng ~5i r~inorcel1 concr~te bullding column~.
It 1~ beli~ved that the documen~s li ~ed lmm~dl~t~ly 7 b~low conta~n ln~orma~cion which i~ or might b~ consld~red to b~
8 matQrlal to ~he examlnatlon of thi~ p~ent applis:~atlon.
U. S . Patent No,. 3, 201, 088 U.S. Patent No~ 3,828,513 u.~o Paten'c ~ao~ 3,974,618 U. ~S . Patent No. 4, 058, 952 .
11 U.S. Patent No. 4,179,104 U.S,. PatQnt No. 4,514,942 12 U.,S. Pa'cent No. 4,587,773 1~ U.S. Patent No. 4,5~9,8~4 14 U.S. Patent No. 3,201,088 diE~C108Ç~ a ~y~éem fo~ ~le-IS vating building component~ including jack unit~ ~d~p'c~d to be 1~ mounted on the upper end~ of vertl~:al columns.
17 U.S. Patent No. 3,974,618 dlsclo~e~ method~ and me~n~
18 for multl-~tory bulldlng construction.
1~ U.S. Patent NoO ~,587~773 disclo~es a sei~ proteo-20 tion ~ystem.
21 U.~. Patent No. ~514~94~ disclo~ea ~ da~piny in3talla~
22 tlon for eartbquake-endangered buildings.
23 ~.S. Pa~ent ~o. 4,179,104 disclos~ a mech~nical ~ten-24 uator for reducing earthquake force~ on a ~truCture or part 25 thereof.
26 U.S. Patent No. 4,5~9,834 d~sclo~es a sel~mic lsolator.
27 ~he term ~prlor art" a~ used herein or in Jny ~t~ement 28 made by or on behalf of applicant means ~y that any document 2~ or thing referred to as pxior 3rt bears, directly or inferen-30 tially, a d~te whlch i~ ~rlier than the ef~ectlve filing d~te 31 hereof.
2 ~
1 No representation or ~dmi~ion i8 made that any o~ the 2 above-l~sted document~ iB par~ o~ the prior ~rt, or ~h~t a ~e~r~h ~ h~s ~een mad~, or ~ha~ no more pertlnent informa~lon ~xist~.
$ ~_ 7 Accordingly, i~ i~ an object o~ m~ p~esent lnven~ion 8 to pro~ide method~ and apparatu8 ~or jacl~ing a reinforc~d c~n-~ cret~ column ~nd th~ lo~d ~ar~ by iS ~hile ~ por~lon of th~t lO column i8 b~ing removed.
ll Another object of my invention i~ to provide metbod~
12 and apparatu~ fo~ thus ~acking a reinforced concrete column and 13 the load carried by $t w1~hout ~amaging the re~ain~ng port10n or 14 portiona of that ~olumn or th~ load carrled by it.
Y~ another ob~ect of my inventLon i~ to prov~de meth-16 ods and apparatus for thu~ jacking a reinforced concrete colu~n 17 and the load carrl*d by i~ wi~hou~ drilling or otherwis~ ~odify-l~ ing the remaining portion or por~ions of that oolumn.
1~ An additional ob~ect o~ my invention i8 to pro~lde 20 method~ and apparatus for thus iacklng a rein~orced concrete .
21 column and the load carrled by ~t without ~ub~an~ially damaging 22 the surfao~ o~ the rem~ining portlon or portions o th~t ~olumn.
~3 A yet further objec~ o~ ~y invention i~ to provid~
24 methods and apparatu~ ~or thu~ ~acking a reinforced concrete 25 Golumn an~ the load c~rried by it without adhering ~ ~ack at~h-2B ment or at~achments to ~he ~urfaae of the remaining portlon or ~7 portions of that column and ~ub~equently removing ~id ~tt~ch~ant 28 or at~achments from ~aid portion or portions.
-2~ ~ ~till further ob~ec~ of my lnvention i~ to provlde 30 method~ and apparatus fot jacking a reinforced concrete column 31 and th2 load ~arried by i~ durlng the repair or repla~emen~ of 32 po~tion of that c~lumn.
1 Yet anothe!r objec~c o~ my lnv~ntion iB to provide meth-2 od~ and apparatu~3 for ~acking a reinforced concre'ce s:olumn and 3 ~h~ load c~rrled by lt dur~ng 'che insert~on into tha'c column o~
'., . ~9 Field of the ~nvent1On. ~y invention rel~ to ~a~k-7 lng me~chod~ and ~pp~ra~u~, ~nd more par~clcularly ~o m~thod~ ~n~
8 ~ppar~u~ for ~ack~ng reinf~rced concrete column~ and l:he load~
9 ~rne ther~by durlng ~che repair or reinforoement of ~ctiosl~ o~
10 such column~, the in~ertion thereirlto of 8~i8mi~ i~ol~tor~, or 11 the l-i ke .
12 D~=., ~etbods and app~ra~us 13 for ~acking t:olumn3 alnd the loa~s ~rn~ there~y are known in th~
14 prlor art.
lS For example, metbod~ and appar~us or ~acking 3teel lt; I-beam column~ ~nd the loada borne thereby durlng the ~p~n3ic~n 17 of build~ng ~tructure~ are ~hown and de~cribed ln Unl~ed S~ate~
18 P~tent No. 4,058,952 is~ued to Fr;~nk ~. Donnelly on 23Ovemb~r 22, 19 19~7.
Fur~cher, method~ ~nd appar2~us or ~cking eolumn~ and ~1 th~ loads borne thereby during ~he erec~lon o~ multi-story build-22 ings are shown and de~crlb~d in Unit~d St~t~s P~ten~ NQ. 3,828~513 ~3 is~ued to P~ter M. Vanderklaauw on August 13, 1974.
24 The method~ and ~pparatu3 o~ ~onn~lly, how~ver, ~re 25 limited to u~e with th~ par~i¢ul~r tele3copic I-be~ column ~y~-26 tem ~hich i~ a ~tructur~l featur~ of the lnvention of Donnelly, 27 an~ thu~ do not provide a ~olutlon to the problem of ~acklng 28 ex~ting reinforced aon~rete column~ and the load~ borne thereby.
29 The me~hods and apparatu~ of Vanderklaauw are 11mlted 30 to u~e in the 2rection of mul~ tory bullding~, all of th~
31 column~ of such multi-~tory bullding~ be1ng formed a~ the b~e-32 mcnt level, on~ floor at a time, and then ~acked up to permit . ~ fJ 3 ~
1 the ~orm~ ng o the next one ~tory column 3egm~n~ irnlnadia~ly 2 beneath. Thu~, the methods and appar~tu~ of Vanderklaauw ~o not ~ provide a ~olu~lon ~o thel probl~3m o rep~ir~ng or ln~0r~1ng n~w 4 ~gmerlt~ or o~her elem~nt~ in~o lnt~rmedlate por~ion~ o~ ~xi~tlng ~5i r~inorcel1 concr~te bullding column~.
It 1~ beli~ved that the documen~s li ~ed lmm~dl~t~ly 7 b~low conta~n ln~orma~cion which i~ or might b~ consld~red to b~
8 matQrlal to ~he examlnatlon of thi~ p~ent applis:~atlon.
U. S . Patent No,. 3, 201, 088 U.S. Patent No~ 3,828,513 u.~o Paten'c ~ao~ 3,974,618 U. ~S . Patent No. 4, 058, 952 .
11 U.S. Patent No. 4,179,104 U.S,. PatQnt No. 4,514,942 12 U.,S. Pa'cent No. 4,587,773 1~ U.S. Patent No. 4,5~9,8~4 14 U.S. Patent No. 3,201,088 diE~C108Ç~ a ~y~éem fo~ ~le-IS vating building component~ including jack unit~ ~d~p'c~d to be 1~ mounted on the upper end~ of vertl~:al columns.
17 U.S. Patent No. 3,974,618 dlsclo~e~ method~ and me~n~
18 for multl-~tory bulldlng construction.
1~ U.S. Patent NoO ~,587~773 disclo~es a sei~ proteo-20 tion ~ystem.
21 U.~. Patent No. ~514~94~ disclo~ea ~ da~piny in3talla~
22 tlon for eartbquake-endangered buildings.
23 ~.S. Pa~ent ~o. 4,179,104 disclos~ a mech~nical ~ten-24 uator for reducing earthquake force~ on a ~truCture or part 25 thereof.
26 U.S. Patent No. 4,5~9,834 d~sclo~es a sel~mic lsolator.
27 ~he term ~prlor art" a~ used herein or in Jny ~t~ement 28 made by or on behalf of applicant means ~y that any document 2~ or thing referred to as pxior 3rt bears, directly or inferen-30 tially, a d~te whlch i~ ~rlier than the ef~ectlve filing d~te 31 hereof.
2 ~
1 No representation or ~dmi~ion i8 made that any o~ the 2 above-l~sted document~ iB par~ o~ the prior ~rt, or ~h~t a ~e~r~h ~ h~s ~een mad~, or ~ha~ no more pertlnent informa~lon ~xist~.
$ ~_ 7 Accordingly, i~ i~ an object o~ m~ p~esent lnven~ion 8 to pro~ide method~ and apparatu8 ~or jacl~ing a reinforc~d c~n-~ cret~ column ~nd th~ lo~d ~ar~ by iS ~hile ~ por~lon of th~t lO column i8 b~ing removed.
ll Another object of my invention i~ to provide metbod~
12 and apparatu~ fo~ thus ~acking a reinforced concrete column and 13 the load carried by $t w1~hout ~amaging the re~ain~ng port10n or 14 portiona of that ~olumn or th~ load carrled by it.
Y~ another ob~ect of my inventLon i~ to prov~de meth-16 ods and apparatus for thu~ jacking a reinforced concrete colu~n 17 and the load carrl*d by i~ wi~hou~ drilling or otherwis~ ~odify-l~ ing the remaining portion or por~ions of that oolumn.
1~ An additional ob~ect o~ my invention i8 to pro~lde 20 method~ and apparatus for thus iacklng a rein~orced concrete .
21 column and the load carrled by ~t without ~ub~an~ially damaging 22 the surfao~ o~ the rem~ining portlon or portions o th~t ~olumn.
~3 A yet further objec~ o~ ~y invention i~ to provid~
24 methods and apparatu~ ~or thu~ ~acking a reinforced concrete 25 Golumn an~ the load c~rried by it without adhering ~ ~ack at~h-2B ment or at~achments to ~he ~urfaae of the remaining portlon or ~7 portions of that column and ~ub~equently removing ~id ~tt~ch~ant 28 or at~achments from ~aid portion or portions.
-2~ ~ ~till further ob~ec~ of my lnvention i~ to provlde 30 method~ and apparatus fot jacking a reinforced concrete column 31 and th2 load ~arried by i~ durlng the repair or repla~emen~ of 32 po~tion of that c~lumn.
1 Yet anothe!r objec~c o~ my lnv~ntion iB to provide meth-2 od~ and apparatu~3 for ~acking a reinforced concre'ce s:olumn and 3 ~h~ load c~rrled by lt dur~ng 'che insert~on into tha'c column o~
4 ~ ~el~mlc i~olal:or or the like"
~C Anoth~r object of my invention iB l:o provld~ me~chod~
~nd appar~tu~ for ~¢king Yl reinor~ed conarete colllmn ~n~ ~h~
7 load carr ied by lt to permi t th~? replacement or repalr o~ a ~-8 ~1 on oi~ that column which p~e8 thxough a f iniahe~ ~12eA of an 9 axi~ting building wl~h mlnimum disturb~nce to th~ ~inlshQtl ~rB~
10 of t he bu i ld 1 ng .
11 Yet ano~her ob~eclt o my invention i8 to prov~ d~ m~th-12 od~ and apparatu~ for ~acking a reinforced concrete column of an 13 exisl~ing building and the load c~rr ied there~y 'co permit the 14 replacement or repair of a portion of that column whlch pa~e8 15 through ~ clo~ely confined ~pace within ~aid buil~ng, wlth ~ mln~mum di~turb~nc:e o~ th~s par~itisna, ~uc~13, eto., which d~ln~
17 that confined ~pace.
18 A yet further ob~ect o ~y inven lon i8 to provlde 19 methods and appa~tus for the jacking of a rein~orced concrete ~0 bulldln~ column and the load carried by that column to perm~t 21 th~ repl~cement or repair of a portion of that column whlcb i~
2~ located in a part of ~he building which provide~ ~o little head 23 ~pace that th~ appara~u~ o~ my inventlon mu~t be loc~ed partly 24 ~bovQ and partly b~low a floor o that building, withou~ d~m~g~
~S ing th~t floor.
26 Another ob~ct of my in~ention 1~ to provide method~
27 and apparatu~ for gr~ppi~g a reinforced concrete column tlghtly 28 enough to generate holding capacity ~or bearing the load borne 2~ thereby at a reasonable coefflcien~ oE friction between the grip 30 ping apparatu~ and the concrete ~urface of ~he column without 31 crushing the column, and to avoid the u~e of adhesi~es batween 32 the gr~pping apparatu~ ~nd the column and the resulting dlfi-~j-~_ 2 [)'.3 ~ 'L
1 ~ultie~ in removing the gripping ~ppar~tu~ rom the column with-2 out damage to the c:olumn .
~ O'cher ob~ot~ o~ my invention wlll in p~rt b~ obYlou~
4 and will in par~ appear herein~f~er.
My inventiQn, aocordingl~, compri~e~ the several ~ep~
6 an~ the relation of one or more oP ~uch steps with re~pect ~o 7 each oiE the othor~, and ~e apparatu~ embodying features o~ con-8 struction, comblna~ion~ of elemenS~, and arrangements of parts ~ whi¢h are adApted 'co e~fect ~uch ~teps, all a~ exempll~d ln 10 the followlng diaclo~ure, and ~le ~cope of my ~nv~n~clon ~111 b~
11 indlcat~d in the claim~ appended here~o.
12 In accordance wll~h a principal feature of my lnvention 13 an attachment i~ provided wh~reby ~ plurallty of hydr~ullc ~ck~
14 and associa~ed j~cking po~ may be attached to sn exi~ing r~in-15 forced concret~ column wi'chou'c damaging or ~tructur~lly ~ltering 1~ the column.
17 In as~cordance s7ith another principal ~ea~ure o~ my 18 invention ~aid attachment includes a clamping device whi~:h ia 1~ adaptod to b~ as~embled around ~aid roinforced ooncr~'ce eolumn, 2~ on ~ ~loor aurrounding ~id oolumn, ra1sed 'co confron~ the por-21 tion o the column to whlch it i~ to be at~cached, and ~hen cl~mp-22 ed to th~c column.
:~ In a~cordance with yet annther prin¢ip~l fea1:ure of ~y 24 inven~ion said attachment ~urther 1nclu~e~ an tntermedia~ca men~ber 2S which i8 interpo~ed in load-bear~ng relation between s~id cla~p-26 ing dev~ ce anà an a~30ciated plurality o hydraulic ~ack~ or 27 jscking po8t8. .
28 In accordance w~th a further prlncipal fe~ture o my 29 inventiQn ~aid clamping device include8 a plurallty of shoe mem-30 bers each of which i8 provided with a ~acing adapted to friction-31 ally engage sald coluinn.
32 //~
1 In accordanl:e with an additional prinoipal ~ea'cur~ of 5~ my invention said facings c7~ said ~l~mping device toyether ~ng2lg~
3 sub~tantially the entire ~u~r surf~c~ o~ aald oolumn betw~n 4 prede~rmined upper limit and a pr~determined lower limit.
~C Anoth~r object of my invention iB l:o provld~ me~chod~
~nd appar~tu~ for ~¢king Yl reinor~ed conarete colllmn ~n~ ~h~
7 load carr ied by lt to permi t th~? replacement or repalr o~ a ~-8 ~1 on oi~ that column which p~e8 thxough a f iniahe~ ~12eA of an 9 axi~ting building wl~h mlnimum disturb~nce to th~ ~inlshQtl ~rB~
10 of t he bu i ld 1 ng .
11 Yet ano~her ob~eclt o my invention i8 to prov~ d~ m~th-12 od~ and apparatu~ for ~acking a reinforced concrete column of an 13 exisl~ing building and the load c~rr ied there~y 'co permit the 14 replacement or repair of a portion of that column whlch pa~e8 15 through ~ clo~ely confined ~pace within ~aid buil~ng, wlth ~ mln~mum di~turb~nc:e o~ th~s par~itisna, ~uc~13, eto., which d~ln~
17 that confined ~pace.
18 A yet further ob~ect o ~y inven lon i8 to provlde 19 methods and appa~tus for the jacking of a rein~orced concrete ~0 bulldln~ column and the load carried by that column to perm~t 21 th~ repl~cement or repair of a portion of that column whlcb i~
2~ located in a part of ~he building which provide~ ~o little head 23 ~pace that th~ appara~u~ o~ my inventlon mu~t be loc~ed partly 24 ~bovQ and partly b~low a floor o that building, withou~ d~m~g~
~S ing th~t floor.
26 Another ob~ct of my in~ention 1~ to provide method~
27 and apparatu~ for gr~ppi~g a reinforced concrete column tlghtly 28 enough to generate holding capacity ~or bearing the load borne 2~ thereby at a reasonable coefflcien~ oE friction between the grip 30 ping apparatu~ and the concrete ~urface of ~he column without 31 crushing the column, and to avoid the u~e of adhesi~es batween 32 the gr~pping apparatu~ ~nd the column and the resulting dlfi-~j-~_ 2 [)'.3 ~ 'L
1 ~ultie~ in removing the gripping ~ppar~tu~ rom the column with-2 out damage to the c:olumn .
~ O'cher ob~ot~ o~ my invention wlll in p~rt b~ obYlou~
4 and will in par~ appear herein~f~er.
My inventiQn, aocordingl~, compri~e~ the several ~ep~
6 an~ the relation of one or more oP ~uch steps with re~pect ~o 7 each oiE the othor~, and ~e apparatu~ embodying features o~ con-8 struction, comblna~ion~ of elemenS~, and arrangements of parts ~ whi¢h are adApted 'co e~fect ~uch ~teps, all a~ exempll~d ln 10 the followlng diaclo~ure, and ~le ~cope of my ~nv~n~clon ~111 b~
11 indlcat~d in the claim~ appended here~o.
12 In accordance wll~h a principal feature of my lnvention 13 an attachment i~ provided wh~reby ~ plurallty of hydr~ullc ~ck~
14 and associa~ed j~cking po~ may be attached to sn exi~ing r~in-15 forced concret~ column wi'chou'c damaging or ~tructur~lly ~ltering 1~ the column.
17 In as~cordance s7ith another principal ~ea~ure o~ my 18 invention ~aid attachment includes a clamping device whi~:h ia 1~ adaptod to b~ as~embled around ~aid roinforced ooncr~'ce eolumn, 2~ on ~ ~loor aurrounding ~id oolumn, ra1sed 'co confron~ the por-21 tion o the column to whlch it i~ to be at~cached, and ~hen cl~mp-22 ed to th~c column.
:~ In a~cordance with yet annther prin¢ip~l fea1:ure of ~y 24 inven~ion said attachment ~urther 1nclu~e~ an tntermedia~ca men~ber 2S which i8 interpo~ed in load-bear~ng relation between s~id cla~p-26 ing dev~ ce anà an a~30ciated plurality o hydraulic ~ack~ or 27 jscking po8t8. .
28 In accordance w~th a further prlncipal fe~ture o my 29 inventiQn ~aid clamping device include8 a plurallty of shoe mem-30 bers each of which i8 provided with a ~acing adapted to friction-31 ally engage sald coluinn.
32 //~
1 In accordanl:e with an additional prinoipal ~ea'cur~ of 5~ my invention said facings c7~ said ~l~mping device toyether ~ng2lg~
3 sub~tantially the entire ~u~r surf~c~ o~ aald oolumn betw~n 4 prede~rmined upper limit and a pr~determined lower limit.
6 In accordance with another prlnaipal featur~ o ~y inven~1on a jacklng rlg o~ my lnvention ia compri~ed o~ a Elr~t 7 one of ~aid ~ttachment~, a ~econd one of 3aid atkachm~n~, and A
8 plural~ty of hydraulic ~ack~ and j~cking po~ts dispo~d betwe~n 0 the intermedia~e ~ember of said fir~t one of ~aid atta~hm~ts and the intermediate member o~ aaid ~econd one of ~aid att~h-11 ment~.
12 In accordance with a yet further princip~l ~eature of 13 my invention said attaohments are ~o cons~ructed and arr~nged 14 that ~he ~pacing of ~aid ~Acking po~ts permlte ~cces~ ~o the 16 po~tion o~ ~he ~olumn oonron~d by ~al~ ~ack1n~ po~, whloh 16 port~on i~ to be repair~ or replaced with ~ ~ei~i¢ lsolator or 17 the like.
18 In accordance wlth yet another prlncipal feature o~ my 19 inv~ntion certain jacking rigs thereof may make use of but one 20 of said attachments, rather than a plurality thereof; as when 21 the ~acks of 3uch a rig are directly or indirec~ly ~upp~rted by 22 the pile cap foundation or ~prea~ footing upon which th2 bullding 23 column belng worked on i~ supported.
24 In accordance with an additional principal fea~ure of 25 my invention such an attachment i~ comprl~ed of a plurality of 26 m~:tually interengaged parts 80 con~tructed and arranged that the 27 attachmen~ need not be totally di~a~sembled when moved from column 28 to column of ~ bullding.
29 ~n accordance with yet another principal feature o~ my 30 invention the attachmant thereof i8 adaptable to reinforced con-31 crete colu~n~ o different cros~-~ection, e.g., rectangul~r 32 cros~-section or circular cros~-~ection.
2~6~
1 In accordanc~ wi~ch ~ y~ further princlp~l ~e~ure o~
2 ray inventlon th~ method~ ~n~ ~pparatu~ thereof are applic~le to 3 a wide variety o~ aiYil struc:~ure~, ~ncludlng not only b~ilding~, 4 but al~o br i ~ge~, aqueducts, elev~ted ro2~dway~, f reew~ay c)ver-6 pa~3, ~
In accordarlce with ano~cher princlpal fea~ure o~ my 7 invention a method of ~acking a re~n~oroed concre~ce column and 8 the load ~uppor~ced thereby ~o permit the rep~ir or replae~mQnt ~ of a predetermined ~et:tion o~ th~c oolumn compr lae~ th~ st~ps of 10 ~l) disposing the part~ of a f 1r~t clamping dev~ce on ~ floor 11 ~urrounding ~ald ~:olumn, ~2~ assembling ~aid fir~t cl~mping de-12 v ice around said c:olumn, (3) rai~ing the a~sembled clamping de-13 vice to a location above said predetermin~d ~ction of ~id 14 column, and ~) clemping aaid ~lamping devl~e ~o ~aid ~olumn. .
~ In ac~ordance with an ~dd~ tional prin~ip~ atur~ of 16 my invention said m~thod o my invention ~urther comprise3 the 17 ~tep of assembling with ~id clamping ~evlce an i~atermed~ ate 18 membar adapted to intermediate between said cl~mpinq deviae ~nd 19 a plurality of ~acking p~t~, ~ald intermedla~e member b~ing 20 provided with a plurality of ~ocket~ adap~ed ~:Q receive the ~1 respective upper end~ of said jacking po~.
22 In accordance with yeé another principal fe~ture o ~ay 2~ lnvention 3aid mel:hod thereof fur~her compri~e~ th~ ~tep of 24 as~embling on ~aid floor around said column a ~ecs~nd cl~mplng 2S device and a ~econd intermedi ate member ~dapted to lntermedi~te 26 ~etween 3aid second clamping devlce and a plurality of ~acks, 27 said second intermedi~te membel~ compr1~1ng a plural~ ty of ~ockat~
28 adap'ced to receive the bal3es of A corre~pondiny plur~llty of :l9 j acks .
In accordance with ~ ~urther principal featur~ of my 31 inv~ntion ~aid method thereof further compri~es the steps of 11) 32 rai~ng s~id second clamping device and said ~econd in~ermedlat~2 2 'i, ~' IJ jJ `~J ~
1 member ~o a location below ~aid pr~d~t~rm~ned ~eckion o~ ~id :~ oolumn an~ (2) clamping ~aid ~@~ond olamping d~vi¢~ éo ~aid ~ column.
4 In acco~dance wl~ch a yet ~ur~her prlnolpal ~a'cur~ o~
my inven~ion ~aid met~od of my invention fur~ch~r oompri~e~ ~he ~tep~ of ll) di~posing a plural~ ty of jackY ~n ~aid ~o~ket~ o~
7 said secc)nd intermediate member (2) disposing ~ corr~ssponding 8 plur~lity of ~oklng po~t~ in ~o~ket~ di~pos~d on the upp~r ~nds ~ o~ the pistons or rams of ~aid ~acks, (33 rai~ing the pi~ton~ of lO said ~ack~ ~ubs~antlally ~imultaneously unt~ 1 the upper ends o ll ~aid jacking po8t8 are received in t~ corresponding downwardly :2 facin~ sockets of said ~ir~t intermediat~ member, ~nd ~4) further 13 r~i3ing the pl~ton~ of ~id jackE~ until the upper ~nd~ o~ 3aid 14 ~acking oolumn~ contact ~hid ~irst intermediAt~ m~mb~r ~nd th~
15 port~on of said cslumn abov~ said prede~erm~n¢d ~ection and tho 16 load ~upported thereby are borne by ~aid clamping device~ id 17 in~ermediate member~, said jacks, and sald jacking po~ta, a~
18 not by said prede~ermined seotlon of sai~ colu~n. . .
~ In accordance wi~h another principal f~a~ure o~ my ~0 invention the m~thod of my invention further compri~e~ the ~tep~
21 o removing an~ repl~cin~ said predet~rmined ~ectlon o ~aid 2~ column, or the ~tep of r~pa~rlng said predetermined 8ection of 23 said column.
24 In accordance ~ith ~ yet further prin¢ipal eature o~
25 my inventlon the method o~ my invention further compri~es the 26 ~tep~ of ~1) lowering the rams or piston~ o~ said jack~ 80 th~t 27 ~he portion of said column above ~ai~ predetermined ~ection ~nd 28 tbe load borne ther~by are ~upported by said predetermined sec-~9 tion, a~ repai~ed or replaced, (2) removing said ~ack~ and ~ack-30 ing column~ from ~ald second intermediate member, ~3) uncla~plng 31 ~aid second cl~mplng device and lowering sald second cl~mping ~2 device and ~econd lntermedi~t~ me~ber to ~aid floor, and ~) ~ $ '~3 f~ ~.
1 p~rtially di~a~mbling ~aid ~econd clamping devio~ 3~ B~
s~c:ond ~n~erm~1a~ce mem~r, wh~r~by ~aid ~con~ ol~mptng doviae ~ and ~aid ~e~ond in'cernedla~ member m~y be moved to ~he loca~io~
4 o~ another column to be operated upon.
6 In ~ccordance with another princlp~l feature of my inven~cion ~h~ method o~ my invention ~urther compri~ the ~tep~
7 o ~1) unclamping said fir~t clamp~ng device from sai~ columrl, 8 ~2) low~ring sald f1rst cl~mp~ng device and ~aid first lnterm~-0 diate member to ~ai~ floor, and (3~ partially disa~embling s~1d 10 fir~t clamping device and said ~irst intermedi~t~ memb~r, wh~r0by 11 ~aid f~rst ~l~snping devioe and ~aid flr~t lntermQdiste memb~r 12 may be moved to the loc~tion of ~nother oolumn ~o be operated 1.3 upon .
14 In accordance with ye~ another p~inclpal eature of ~ay 15 invention gripping force~ are applied to ~ubstantially ~11 o~
18 the ~uefaoe o ~ c:oncre~e column between upp~r and low~ horl~on-17 tal limits and the clamping rod~ are uniformly stre~d ~ub~tanw 1~ tially slmultanou~ly thu~ permit~ing applied compre~ion ~stte88 19 to 90fc and the r~qulred gripping force c~n be att~ined at a re~onable coeffici~nt of friction between the gripplng app~r~tu~
21 and the concrete ~urface.
22 For a fuller under~andlng of the nature and 3b~ects 23 of my invention~ referenc~ should be ha~ to the following d~t~ile~
2~ de~cription, taken in oonn~C~ion with the acCompanying dr~wing~
26 Brief Description of the Drawlngs 28 Fig. 1 is an elevation~l view of a Jacking rig of my 29 inventlon ~ operatively applied ~o a rein~orc~d concre~e column~
3~ Fi~. 2 i~ a horizontal view, partly ln cros~-section, 31 of the reinforced concre~ colu~n and first (upper) clamping 32 a~embly ~hown in Fig. 1, taken on PlHne 2-2 of Fiq. 17 2 ~
1 Fig~ 3 i~ an eleva~ional view, partly ln ~ect$sn, o a 2 rod tensloning device o~ ~he prio~ art u~ed ln cl~mplng th~ ~lamp-3 ing ~ssem~lieB of ~ig. l to ~he reinforce~ conCret~ Co~u~n ~ho~n 4 in Fig. ls 6 Fig. 4 i~ an ~levat1onal view, partly in s~ction, tak2n on Pl~ne ~-4 c~ Flg. 27 7 Fig. 5 i~ an el~vational vlew, par~ly ln ~eotlon, taken 8 on Plane 5-5 o Fig. 2t 9 Fig. 6 i~ a plan vle~, partly in s~ction, taken on 10 Plane 6-6 of Fi~. 5;
12 In accordance with a yet further princip~l ~eature of 13 my invention said attaohments are ~o cons~ructed and arr~nged 14 that ~he ~pacing of ~aid ~Acking po~ts permlte ~cces~ ~o the 16 po~tion o~ ~he ~olumn oonron~d by ~al~ ~ack1n~ po~, whloh 16 port~on i~ to be repair~ or replaced with ~ ~ei~i¢ lsolator or 17 the like.
18 In accordance wlth yet another prlncipal feature o~ my 19 inv~ntion certain jacking rigs thereof may make use of but one 20 of said attachments, rather than a plurality thereof; as when 21 the ~acks of 3uch a rig are directly or indirec~ly ~upp~rted by 22 the pile cap foundation or ~prea~ footing upon which th2 bullding 23 column belng worked on i~ supported.
24 In accordance with an additional principal fea~ure of 25 my invention such an attachment i~ comprl~ed of a plurality of 26 m~:tually interengaged parts 80 con~tructed and arranged that the 27 attachmen~ need not be totally di~a~sembled when moved from column 28 to column of ~ bullding.
29 ~n accordance with yet another principal feature o~ my 30 invention the attachmant thereof i8 adaptable to reinforced con-31 crete colu~n~ o different cros~-~ection, e.g., rectangul~r 32 cros~-section or circular cros~-~ection.
2~6~
1 In accordanc~ wi~ch ~ y~ further princlp~l ~e~ure o~
2 ray inventlon th~ method~ ~n~ ~pparatu~ thereof are applic~le to 3 a wide variety o~ aiYil struc:~ure~, ~ncludlng not only b~ilding~, 4 but al~o br i ~ge~, aqueducts, elev~ted ro2~dway~, f reew~ay c)ver-6 pa~3, ~
In accordarlce with ano~cher princlpal fea~ure o~ my 7 invention a method of ~acking a re~n~oroed concre~ce column and 8 the load ~uppor~ced thereby ~o permit the rep~ir or replae~mQnt ~ of a predetermined ~et:tion o~ th~c oolumn compr lae~ th~ st~ps of 10 ~l) disposing the part~ of a f 1r~t clamping dev~ce on ~ floor 11 ~urrounding ~ald ~:olumn, ~2~ assembling ~aid fir~t cl~mping de-12 v ice around said c:olumn, (3) rai~ing the a~sembled clamping de-13 vice to a location above said predetermin~d ~ction of ~id 14 column, and ~) clemping aaid ~lamping devl~e ~o ~aid ~olumn. .
~ In ac~ordance with an ~dd~ tional prin~ip~ atur~ of 16 my invention said m~thod o my invention ~urther comprise3 the 17 ~tep of assembling with ~id clamping ~evlce an i~atermed~ ate 18 membar adapted to intermediate between said cl~mpinq deviae ~nd 19 a plurality of ~acking p~t~, ~ald intermedla~e member b~ing 20 provided with a plurality of ~ocket~ adap~ed ~:Q receive the ~1 respective upper end~ of said jacking po~.
22 In accordance with yeé another principal fe~ture o ~ay 2~ lnvention 3aid mel:hod thereof fur~her compri~e~ th~ ~tep of 24 as~embling on ~aid floor around said column a ~ecs~nd cl~mplng 2S device and a ~econd intermedi ate member ~dapted to lntermedi~te 26 ~etween 3aid second clamping devlce and a plurality of ~acks, 27 said second intermedi~te membel~ compr1~1ng a plural~ ty of ~ockat~
28 adap'ced to receive the bal3es of A corre~pondiny plur~llty of :l9 j acks .
In accordance with ~ ~urther principal featur~ of my 31 inv~ntion ~aid method thereof further compri~es the steps of 11) 32 rai~ng s~id second clamping device and said ~econd in~ermedlat~2 2 'i, ~' IJ jJ `~J ~
1 member ~o a location below ~aid pr~d~t~rm~ned ~eckion o~ ~id :~ oolumn an~ (2) clamping ~aid ~@~ond olamping d~vi¢~ éo ~aid ~ column.
4 In acco~dance wl~ch a yet ~ur~her prlnolpal ~a'cur~ o~
my inven~ion ~aid met~od of my invention fur~ch~r oompri~e~ ~he ~tep~ of ll) di~posing a plural~ ty of jackY ~n ~aid ~o~ket~ o~
7 said secc)nd intermediate member (2) disposing ~ corr~ssponding 8 plur~lity of ~oklng po~t~ in ~o~ket~ di~pos~d on the upp~r ~nds ~ o~ the pistons or rams of ~aid ~acks, (33 rai~ing the pi~ton~ of lO said ~ack~ ~ubs~antlally ~imultaneously unt~ 1 the upper ends o ll ~aid jacking po8t8 are received in t~ corresponding downwardly :2 facin~ sockets of said ~ir~t intermediat~ member, ~nd ~4) further 13 r~i3ing the pl~ton~ of ~id jackE~ until the upper ~nd~ o~ 3aid 14 ~acking oolumn~ contact ~hid ~irst intermediAt~ m~mb~r ~nd th~
15 port~on of said cslumn abov~ said prede~erm~n¢d ~ection and tho 16 load ~upported thereby are borne by ~aid clamping device~ id 17 in~ermediate member~, said jacks, and sald jacking po~ta, a~
18 not by said prede~ermined seotlon of sai~ colu~n. . .
~ In accordance wi~h another principal f~a~ure o~ my ~0 invention the m~thod of my invention further compri~e~ the ~tep~
21 o removing an~ repl~cin~ said predet~rmined ~ectlon o ~aid 2~ column, or the ~tep of r~pa~rlng said predetermined 8ection of 23 said column.
24 In accordance ~ith ~ yet further prin¢ipal eature o~
25 my inventlon the method o~ my invention further compri~es the 26 ~tep~ of ~1) lowering the rams or piston~ o~ said jack~ 80 th~t 27 ~he portion of said column above ~ai~ predetermined ~ection ~nd 28 tbe load borne ther~by are ~upported by said predetermined sec-~9 tion, a~ repai~ed or replaced, (2) removing said ~ack~ and ~ack-30 ing column~ from ~ald second intermediate member, ~3) uncla~plng 31 ~aid second cl~mplng device and lowering sald second cl~mping ~2 device and ~econd lntermedi~t~ me~ber to ~aid floor, and ~) ~ $ '~3 f~ ~.
1 p~rtially di~a~mbling ~aid ~econd clamping devio~ 3~ B~
s~c:ond ~n~erm~1a~ce mem~r, wh~r~by ~aid ~con~ ol~mptng doviae ~ and ~aid ~e~ond in'cernedla~ member m~y be moved to ~he loca~io~
4 o~ another column to be operated upon.
6 In ~ccordance with another princlp~l feature of my inven~cion ~h~ method o~ my invention ~urther compri~ the ~tep~
7 o ~1) unclamping said fir~t clamp~ng device from sai~ columrl, 8 ~2) low~ring sald f1rst cl~mp~ng device and ~aid first lnterm~-0 diate member to ~ai~ floor, and (3~ partially disa~embling s~1d 10 fir~t clamping device and said ~irst intermedi~t~ memb~r, wh~r0by 11 ~aid f~rst ~l~snping devioe and ~aid flr~t lntermQdiste memb~r 12 may be moved to the loc~tion of ~nother oolumn ~o be operated 1.3 upon .
14 In accordance with ye~ another p~inclpal eature of ~ay 15 invention gripping force~ are applied to ~ubstantially ~11 o~
18 the ~uefaoe o ~ c:oncre~e column between upp~r and low~ horl~on-17 tal limits and the clamping rod~ are uniformly stre~d ~ub~tanw 1~ tially slmultanou~ly thu~ permit~ing applied compre~ion ~stte88 19 to 90fc and the r~qulred gripping force c~n be att~ined at a re~onable coeffici~nt of friction between the gripplng app~r~tu~
21 and the concrete ~urface.
22 For a fuller under~andlng of the nature and 3b~ects 23 of my invention~ referenc~ should be ha~ to the following d~t~ile~
2~ de~cription, taken in oonn~C~ion with the acCompanying dr~wing~
26 Brief Description of the Drawlngs 28 Fig. 1 is an elevation~l view of a Jacking rig of my 29 inventlon ~ operatively applied ~o a rein~orc~d concre~e column~
3~ Fi~. 2 i~ a horizontal view, partly ln cros~-section, 31 of the reinforced concre~ colu~n and first (upper) clamping 32 a~embly ~hown in Fig. 1, taken on PlHne 2-2 of Fiq. 17 2 ~
1 Fig~ 3 i~ an eleva~ional view, partly ln ~ect$sn, o a 2 rod tensloning device o~ ~he prio~ art u~ed ln cl~mplng th~ ~lamp-3 ing ~ssem~lieB of ~ig. l to ~he reinforce~ conCret~ Co~u~n ~ho~n 4 in Fig. ls 6 Fig. 4 i~ an ~levat1onal view, partly in s~ction, tak2n on Pl~ne ~-4 c~ Flg. 27 7 Fig. 5 i~ an el~vational vlew, par~ly ln ~eotlon, taken 8 on Plane 5-5 o Fig. 2t 9 Fig. 6 i~ a plan vle~, partly in s~ction, taken on 10 Plane 6-6 of Fi~. 5;
11 Fi~ 7 is a pictorial view of a cla~ping devi~e and an 12 lnt~rmedi~te me~ber of my lnven~ion~
13 Fig. 8 1~ ~n el~va~ion~l viaw o ~ aecond a~pl4c~ion 14 of the methods and apparatus of my invention~
1~ Fig. 9 is a plan view, partly in section, of a clamping 16 ds~embly of my invention ad~pted to be used in connection ~i~h 17 reinorc~d eoncrete colu~n~ o~ circular cros~-~ection~ ~nd 3 18 r~inforced concrete column of circular cross-~ection to whlch 19 ~ha~ clamping as~embly i8 clamped; and Fig, 13 i~ an elevational view, partly in seotion, of a concrete colu~n into which a seismic i801a~0r and flat jack ~2 have been in~erted by moa~ of the ~thod and appara~u~ of ~y 23 inv~ntion.
~ .
26 , 27 Referring now So Fig. l, there 1~ ~hown a ~acking rig 2~ 10 o the first preferred embodiment o my invention, applled to 29 a reinforced concrete column 12 for the insertion thereinto of 30 sei~mic isolator 14 and flat jack 140~
31 Jacking rig lO i~ comprised of an upper clamping as~em-3~ bly or clamp 16, a lower clamping assembly or clamp 18, an upper ~ a ~ GG i J ~, ~
1 ln*~rmediel~ m~mber or coll~c~or boam 20, z~ low~r lnterm~dl~td :~ m~mbo~ ~or oQllec:tor beam 22, hyd~auli~ ok~ 2~, 26, and ~noklng ~ po~t~ 28, 30. It is to be unders~ood that ~Acklng rlg 10 ~ur'ch~r 4 ~:omprlsss ad~ltional ~ack~ 32, 34 and ad~it~on~ c:king pOf~ 8 ~ 36, 38, which are loaatecl directly beh~nd ~ck~ 24, 26 ~nd ~ck-8 ing pO8t~1 28, 3û, respec'clvely, in Fig. 1.
7 A~ further s~n ln Fig. 1, relnforc:ed concr~te colulan 8 12 extends between and through an upper 100r 40 ~nd ~ lower 0 floor 42, of th~ building of which c:olumn 12 i3 a p~rt.
It 1~ to be underatood that in acc:ordanoe with a prin-11 ~ipal feature of my invention columr 12 n~ed no~ be located ln a 12 ~ubstanti311y un~ini~hed por~ion o~ ~aid bullding, ~uch as 1~ ~rnge or ba~m~nt area, but may p~0 ~chr~ugh ~ finiehed ~r~ o~
14 the building, such al~ a con~erence room or ¢ven a co~pu'c~r roo~n, 15 in which case the compactne~ and modularity o~ ~acklng rig 10 1~ makes it possib1e to fllt ~acking rlg 10 to column 12 with min1mu~
17 diæturbanc~ of the ~1ni~hed por~10n of the bu11d~ng ~h~ough whiob 18 column 12 pa8~e8, ~uch a~ partlt10ns, duot work, ~lest~io~1 ~nd 19 e1ectronlc cab11ng, te1ephone ~aci1~tie~, computer faci11~1es, ~0 ~tc.
21 Referring now to Fig. 2, and comparing the ~a~e w~th 22 Figs. 1, 4, 5~ 6, and 7, clamping a~semb1y or a1A~p 16 will now :-23 be de~cribed in de~ail.
24 It is to be unders~ood that c1amp1ng as~emb1y or ola~p 25 18 is substantia11y the same a~ c1amplng a~semb1y or clamp 16.
26 A~ may be ~een by comp~rison of Fig~. 1 and 2, cla~p 27 16 18 comprised of twelve clamping beam~ 44-1 through 44-12.
28 C1~mp 16 i~ further compr1~ed o~ twelve rods 46-1 20 through 46-12.
Each of the rods 46-1 through 46-12 i8 threaded ~t 31 both ends, and i~ provided at each end w1th a nut, 48-1 through 32 48-24~ threaded1y interengag~d with the thr~ds thqreat, and ~n 2~.~33U
1 as~ocia~c~d washer 50-1 through 50-24.
2 ~It i~ to be under~cood that when each of ~ multipli-3 city of ~ub~1:an~cially ldentical p~t~ of ~acking rig 10 1~ r~f~r;
4 r~d to h~rein by an ind~vidual hyphenAéed reference num~ral, e.g., ~4-7, 46-1, tho~ ~ubstanti~lly identl~al p~rt~ will ~o~-tlme~ b~ r~erred 'co hereln gener~lly or coll~ctively by th~
7 corre~pondlng non-hyphenA~ced r~f~rence numeral. ~hu~, for exam-8 ple, ~he non hyphena~ced ref~renae numer~l 4S re~r~ ~ither to ~ all of ~he rod~ 46-1 through 46-12, co~ tlY~ly~ or to any onQ
10 of the~e rods generally, without de~ignating a particul~r rod.
11 For ol~rl~y o lllu~tration, ~nd wh~r~a th~ arr~ng~ nt o r~f~-12 ence numeral~ will b~ evident ~o tho~e h~ving srdinary ~ill ln 13 the ~rt, inform~ by ~che pre~ent di~closure" some o~ ~h~ hyphen-14 ated referense numer~ e~ignating particular one~ o ~uch 15 multiplicltieR o~ sub~tantially identia~l part~ ~r~ omitted ~rom 16 the drawings or some f igure~ thereof . ) 17 Referring now to Figu 2, nnd comparing lt wi~h ~ 1, 18 lt wlll be 30~n th~t ~ plu~ cy of g~n~rally I-~h~ped m~mb~r~
1~ Fig. 9 is a plan view, partly in section, of a clamping 16 ds~embly of my invention ad~pted to be used in connection ~i~h 17 reinorc~d eoncrete colu~n~ o~ circular cros~-~ection~ ~nd 3 18 r~inforced concrete column of circular cross-~ection to whlch 19 ~ha~ clamping as~embly i8 clamped; and Fig, 13 i~ an elevational view, partly in seotion, of a concrete colu~n into which a seismic i801a~0r and flat jack ~2 have been in~erted by moa~ of the ~thod and appara~u~ of ~y 23 inv~ntion.
~ .
26 , 27 Referring now So Fig. l, there 1~ ~hown a ~acking rig 2~ 10 o the first preferred embodiment o my invention, applled to 29 a reinforced concrete column 12 for the insertion thereinto of 30 sei~mic isolator 14 and flat jack 140~
31 Jacking rig lO i~ comprised of an upper clamping as~em-3~ bly or clamp 16, a lower clamping assembly or clamp 18, an upper ~ a ~ GG i J ~, ~
1 ln*~rmediel~ m~mber or coll~c~or boam 20, z~ low~r lnterm~dl~td :~ m~mbo~ ~or oQllec:tor beam 22, hyd~auli~ ok~ 2~, 26, and ~noklng ~ po~t~ 28, 30. It is to be unders~ood that ~Acklng rlg 10 ~ur'ch~r 4 ~:omprlsss ad~ltional ~ack~ 32, 34 and ad~it~on~ c:king pOf~ 8 ~ 36, 38, which are loaatecl directly beh~nd ~ck~ 24, 26 ~nd ~ck-8 ing pO8t~1 28, 3û, respec'clvely, in Fig. 1.
7 A~ further s~n ln Fig. 1, relnforc:ed concr~te colulan 8 12 extends between and through an upper 100r 40 ~nd ~ lower 0 floor 42, of th~ building of which c:olumn 12 i3 a p~rt.
It 1~ to be underatood that in acc:ordanoe with a prin-11 ~ipal feature of my invention columr 12 n~ed no~ be located ln a 12 ~ubstanti311y un~ini~hed por~ion o~ ~aid bullding, ~uch as 1~ ~rnge or ba~m~nt area, but may p~0 ~chr~ugh ~ finiehed ~r~ o~
14 the building, such al~ a con~erence room or ¢ven a co~pu'c~r roo~n, 15 in which case the compactne~ and modularity o~ ~acklng rig 10 1~ makes it possib1e to fllt ~acking rlg 10 to column 12 with min1mu~
17 diæturbanc~ of the ~1ni~hed por~10n of the bu11d~ng ~h~ough whiob 18 column 12 pa8~e8, ~uch a~ partlt10ns, duot work, ~lest~io~1 ~nd 19 e1ectronlc cab11ng, te1ephone ~aci1~tie~, computer faci11~1es, ~0 ~tc.
21 Referring now to Fig. 2, and comparing the ~a~e w~th 22 Figs. 1, 4, 5~ 6, and 7, clamping a~semb1y or a1A~p 16 will now :-23 be de~cribed in de~ail.
24 It is to be unders~ood that c1amp1ng as~emb1y or ola~p 25 18 is substantia11y the same a~ c1amplng a~semb1y or clamp 16.
26 A~ may be ~een by comp~rison of Fig~. 1 and 2, cla~p 27 16 18 comprised of twelve clamping beam~ 44-1 through 44-12.
28 C1~mp 16 i~ further compr1~ed o~ twelve rods 46-1 20 through 46-12.
Each of the rods 46-1 through 46-12 i8 threaded ~t 31 both ends, and i~ provided at each end w1th a nut, 48-1 through 32 48-24~ threaded1y interengag~d with the thr~ds thqreat, and ~n 2~.~33U
1 as~ocia~c~d washer 50-1 through 50-24.
2 ~It i~ to be under~cood that when each of ~ multipli-3 city of ~ub~1:an~cially ldentical p~t~ of ~acking rig 10 1~ r~f~r;
4 r~d to h~rein by an ind~vidual hyphenAéed reference num~ral, e.g., ~4-7, 46-1, tho~ ~ubstanti~lly identl~al p~rt~ will ~o~-tlme~ b~ r~erred 'co hereln gener~lly or coll~ctively by th~
7 corre~pondlng non-hyphenA~ced r~f~rence numeral. ~hu~, for exam-8 ple, ~he non hyphena~ced ref~renae numer~l 4S re~r~ ~ither to ~ all of ~he rod~ 46-1 through 46-12, co~ tlY~ly~ or to any onQ
10 of the~e rods generally, without de~ignating a particul~r rod.
11 For ol~rl~y o lllu~tration, ~nd wh~r~a th~ arr~ng~ nt o r~f~-12 ence numeral~ will b~ evident ~o tho~e h~ving srdinary ~ill ln 13 the ~rt, inform~ by ~che pre~ent di~closure" some o~ ~h~ hyphen-14 ated referense numer~ e~ignating particular one~ o ~uch 15 multiplicltieR o~ sub~tantially identia~l part~ ~r~ omitted ~rom 16 the drawings or some f igure~ thereof . ) 17 Referring now to Figu 2, nnd comparing lt wi~h ~ 1, 18 lt wlll be 30~n th~t ~ plu~ cy of g~n~rally I-~h~ped m~mb~r~
19 52-1 through 52-8 are reepectlvely interpo~ed between ~olll~n 12 20 ~nd one set of 'chree clamp~ng beams 44. More ~pecifically, ~
21 pair of the~e ~nember# 52, each of which i~ called a ~hoe~ h2r~-22 in, ~ interposed between one face of column 12 snd éh~ oorre-23 sponding set of three ~lamping beams 44. Thus, for ~x~mple, ~24 r~ay be seen in Fig. 2, a pair of ~hoe~ 52e7, 52-B i~ in~erpoa~d 25 b2tween column 1~ ~nd clamplng beam 4~-10, a~ well a~ clamplng :l6 bea~ 44-11 and 44-12 (Fig. 1).
27 A3 urth~r ~een in Flg. 2, eaoh ~hoe i~ provlded wlth 28 a facing 54 which i8 interposed between the 3hoe and the corre~-2~ ponding face of column 12. Thu~, ~or example, a faclnq 54-7 1~
30 ln'cerpo~d between ~hoe 52-7 and column 12, and a ~cond facing 31 54-8 is interposed between shoe 52-8 and column 12.
~6&~ ~
1 In the pre~erred emhodiment of my lnYention ~ch o 2 'che ~acing~ 5~ i8 a p~ ece of oak planking the length ~nd width ~ o~ wh~ch is Rub~tantially equal to ~che leng~ch ~n~ w1d~ch ~ ~ha 4 çho~ with whic:21 it coope;rat~, and i~ adh~red ~co the ~ho~ wlth ~S which it cooper~te~ by Dl~a~ of a ~ul~cabl~ el~oxy c~n~ or 'cbe B like. ~hu~, fc)r exannple, f~o~ng 5~-7 18 a pi~c~ o~ oak planking 7 which i~ adhere~ by epoxy cemenlt to ~he fac* of ~hoe 52-7 whl~h 8 i8 mo~t cl osely j uxtapo~ed to column 12 .
0 I~ o be p~r'clcularly noted th~t in the pref~rred 0 embodlment the facing~ 54 are pieces of ~olid oak planking~ ~nd 11 not pieces of oak plywoo~ 9 or p~ ec~ of plywood th~ out~r ven~er~
l:l of wh i ch are oak .
13 It is to be understood ~hat my invention i~ not limited 14 to the employment o~ oak planking material ~or the shoe facing~.
As m~y further be seen by comparison o~ Flq~. 1 and 2, 16 a plural~ ty of ~uitable ~asteners 56 are provided wher~by oaoh 17 ~hoe 52 18 a~ix~d to ea~h on~ o it~ ~:orr~ponding ~ of thr~
18 clamping beams 44.
19 Thu~, it will be under~tood by 'chose having ordinary :20 skill in the ~rt, informed by the pre~ent di~closure, that olamp ~1 16 i~ oomprised of ~our ~aw a~embl~es, each ~w ~ssembly b¢ing 22 compri~@d of ~wo- ~3hoe~ 52, thr~ ~lamplng be~ms ~4, ~nd two fao-;~3 ing~ 5~, all QiE the~e p~rt~ o~ ~a¢h jaw a~embly being ~oln~d 24 togeth~r in th~ m~nn~r de~crib~d h~relna~ve.
It i~ to b~ particularly noted, a~ from Fig. 2, that 26 each pair of facing~ 54, taken together, extend~ subntantlally 27 ~omple'cely acro~s the face of column 12 wh$ch tho~e facinga en-28 gage. l~hus, it will be noted in E~ig. 2 that faclng~ 54-1 and 29 54-2, taken together, extend sub3tantl~11y completely acro~ the 30 f ace of column l 2 upon wh ic:h they bear .
31 Referrlng now to Fig~. 5 and 6, and comparing the s~me, 32 it ~ill be seen that each shoe 52 iB provided wlth an end platQ
~ff~,~S~
1 5~. Thu~, for ex~mple, sho0 52~ provide~ with ~n end pï~t~
58-1, and shoe 52-7 i~ provided ~ith an end plat~ 5B-7.
3 li ach end plate i8 ~ecured to it~ a~oc:ia~ad ~hc~e by 4 suitable mear.~ such as el~3ctric arc welding beads~
A8 further seen by compari~on of Flg~ 4 and 5, each ~3i end plat~ 58 projecta outwardly from ~he ~hoe 52 of which it 18 7 a part. These outwar~ly proj~cting portions o~ ~nd plate~ 5a 8 will respectively be r~erred ~o her~in as the "~ongu~" of ~h~
~ re~pective ~hc~e~ 52.
A~ best seen in Fig~ 6, each ~ongue i~ provided wi~ch 11 two elonga~ed slQt~ 60 adap~ed to ~l~dably receive ~ suit~ble 12 fastener 62 one end of whlch i8 engaged with ~he upp~r plate o 13 int~rmedla~e member or collector beam 20.
14 ~hu8, it w~ll be ~en by tho~e h~ving ordinary sk111 15 in the art, informed by the pre~ent di~clo~urs, that e~oh ~hoe 18 of clamp 16 i~ adapt~ to be s~curQd to int~rmedl~ memb~r or 17 collector beam 20 by mean~ o~ a pair of ~asten~rs 6~. q!he pro-18 vision of elongated 810tl3 60 maks~ it possible to ad~pt ~acking 19 rig 10 to reinforced concrete columna which differ ~omewhat in f~ce-to-face dimen~lon, al~hough all ~re within st~nd~rd tol~r~
21 ances. This difference in absolute ~ace-~o-~ace dlmen~10n0 i~
2~ found p~rt~aul~rly ln re~angular r~inforo~d concreto oolu~ns.
~3 It is to be particularly noted in ~ig. S that cla~ping 24 beams 44 are of tbe double-web I beam variety~ e~gO~ ~h~t cla~p-lng beam 44-12 has ~wo web~ 64-12 and 6~-120 ~hu~ een in 26 Fig. 5, clamping beam 44-12 i~ compri~ed o~ two ~eb~ 64-1~, 6C-27 12 which extend bet~een end platea 6B-l2 and 70-12, and web~
28 64-12 and 66-12 are ~ffixed to end plate8 68-12 and 70-12, ~ by 29 elec~ric arc welding.
It is t~ be noted that each clamping beam 44 ia ~iml-31 larly co~prised of two web~ and two end platQs, and tha~ the 32 respective web~ and end plate~ o~ each clamplng beam ~re mutually 2 0 ~
1 ~olned togeth~r by ~ 'cric arc welding in ~he con~gur~tlon 2 indicated in ~ig. 5, 91 Referrln0 now to Figo 4~ it will be ~e~n th~t e~cb rod 4 46 pa se~ through a clrcular hole 72 ~ n the web of each o its two a~o¢iated ~ho0~ 52. Thu~, fo~ ex3mple, rod 46-10 pa~
~hrough a ~lroular hol~ 7~ in the web o lk~ o~la~ed sho~
7 52-1, and ~l~o pa~e~ through ~ cir~ul~r hol~ 7~ in the web of 8 it~ other a3~0ciat~d shoe 52-2. Thu~, a~ will be evldent to ~ ~bo~ h~ving ordinary sklll in ~he ~r~, in~ormed by th~ pre~ent 10 dlsclosure, each vertically aligned set of thr~e roda, e.g~, Il 46-10, 46-11, 46-~2, i~ interlock~d wi~h a pair of ~ho~ nd 12 thus is al80 interlocked with the ~hr~e cl~mping b~am0 ~hich are 13 af~ixed ~o that pair o ~hoes, i.e., each vertically allgned ~et 14 of three rod~ i8 ln~er~onnected with ~n as~ociated jaw ~embly~
(Jaw asse~bly 78-1, for example, ~Fig. 2) i~ ~ompr~ed of ¢12~p-16 ing beams ~4-1, 4~-2, 44-3, shoes 52-1, 52l-~, and f~cing~ 54-1, 1~ 54-2.3 It ollow~, then, that in accordance wlth the principl~
18 of my lnventlon ~ach jaw a~sembly 7a i8 interlocked wlth a verti-19 cally aligned ~et of rod~ and remain~ ~o unles~ these ro~a are 20 aotu~lly withdrawn fro~ thelr a~sociated holes 72.
21 As ~een in Flg~. 2 and 7, however, ~h~ outer end~ o~
22 the rods 46, whlch pa~s through clamping beam~ 44, pa~ through ~:
2~ ~lo~ 74 thQ upper ~nd lo~r surface~ of whioh ar~ d~ined by 2i the upper and lower web~ of ~he re~pectiv~ clamp1ng besm~ 4~.
2~ It ~ollow~, then, that in accordance wi~h the prin-2ff ciples of my inven~ion eAch jaw a~sembly 78 and it~ a~sociat~d 27 se~ of thre~ vertically al~gned rQds may be disa~embled from 28 the remainder of clamp 16 when the nut~ and wa~hers h~ve b~n 29 removed from all of the rod~ perpendicular to thA~ ~w a~embly, 30 and that thu~ each j~w assembly 78 and lts assoclated rods may 31 be conveniently removea from clamp 16 and transported to anothor 3~ column of the sa~e building without di~as~embling the as~ociated ~`
1 rod~ from 'ch~ ~a~ a~a~mbly, wh~n condltions ~u~h zl~ th~ ~cc~
2~ blll~y o~ ~che ~wo column~ mak~ it pos~lble to ~o 30.
~ Clamp 18 i8 #Ub~t~ntially iden1:lc~1 in ~truc'cur~ to 4 clamp 16, and 'chus the ~aw a~embll~ f ~w ~,~ may 01mllarly b~
5 conven~ ently main'cained ~IB complete a~emblle3 ~hil~ being re-$ moved from col~mn to eolumn in ~ buil~ing, ~f condi~ion~ perrsllt.
7 Referring now to Fig. 7, it will be ~en ~h~t inter~
8 mediate member or collecl:or beam ~0 i9 comprised of four peri-~ pheral beam~ 80-l, 80-2, 80-3, 80-4.
Peripheral beam 80~ comprised of 'cop plate 82-l, ll bottom pl~e 84-l, web 86-l, cros~web~ 87-l, 8B~ nd end pl~tes 12 90-l, 92-l, all of which are ~oined together ln the cc~nflguration 13 ~hown in Fig. 7 by arc welding. The other ~hree peripheral be~ms 14 80-2, 80-3, 80-~ of interme~ial:e member 20 are compri~2d o~E ~ub-1~ stantially iden~ical par~co, ~3~embled in the samQ w~y. lror exam-lB ple, cro~web~ 87-l, 88-3 of peripheral beam 80-3 are an~l~gou~
17 to crosswebs 87-1, 88-l~ of peripheral beam 80-l.
18 A~ also ~en ln ~ig. 7, per~pheral beam~ 80 are ~oined l~ to form int~rm~diate member 20 by meana of 0uitabl~ nuts and 20 boltR 94.
21 A~ shown in phantom ln Fig. 7, and expl~lned hereinabov~ :
22 in connection wlth Fig~. 5 and 6~ jaw a3se~blies 78 are a~t~ned 23 to re~p~t~ve p~riphor~l b~am~ 80 b~ m~ns o~ ~ul~blo aot~n~r~
24 62 (Fig. 6).
~ seen in Fig. 1, ~uitable bearing plate8 96 nnd 26 associated collar~ 98 are affixed ~o ~nt~rmediate member 20 at ~7 each corner thereof, for receiving the upper endH of the ~a~o~
28 ciated jacking po~t8 28, 30, 35, 38.
~9 ~ferring again to Flg. 1, it will be seen that cla~p~
30 inq a~sembly or clamp 18 i~ substantially identical to clamping 31 asse~bly or clamp 16 but i~ a~aembled around column 12 in lnvertad 32 or mirror image orientation with respect to clamp 16.
1~ 2~3661~
1 i~8 wlll also be se~n in ~ig. 1, int~rm~dla'ce m~mb~r or 2 coll~c~or b~am 22 i~ ~ubs~an~ lly l~Qntic~l to collQc'eor ~m 3 20 bu~ for the fact that it i 8 a~ap~ed to be mount~d on th~ upp~r 4 end of clamp 18, and is ad~pted ~o receive ~hck~ 24, 26, ~2, 3~.
Thus~ int~rmediats m~3mber ~ provld~d wi~h sultllbl~
openings in the bottom plate o eac:h o~ it~ p~ripheral b~m~ 100 7 to rec~ive sultable a~t~n~r~ 102 wher~by lt i8 aix2d ~o ~b~
8 ~op plate~ 1û4 of the shoe6 106 o~ clamp 18.
9 Further, a bearing plate 108 i8 affixed to each corn~r 10 o~ intermedla~ce me~ber 22 to ~uppor~ a corr~spondlng onQ o~ th~
11 ~ack~ 2~, 2S, 32; 3~, and a coll~r 110 i8 ~fix~d to ~ch be~rin~
1~2 pl~ce 108 ~o maintain ~he a~ociated ~ack ln po~itlon on ~h~
13 bearing plate.
14 A~ ~urth~r ~n in Fig. 1, ea~h ~ck po~t ~8~ 30, 36, 15 38 ie provided at it3 lower end with a auitable bearlng pl~t~
1~ 112 and collar 114 to r~eive the ram of the a~oci~t~d ~a~k, 17 . .
18 ethod of Installin~ the Jackinq Ri~
1~ of th~ ~irst Preferred ~mbodiment .
21 With reference to F~g. 1, the method of my invention 22 for ~nstall1ng ~a~king rlg 10 on re~nforced concrete column 12 23 will now be described in detail.
24 It i~ to be noted in thls oonn~ctlon tha~ Pi~. 1 illu-25 ~trates ~he condition of colum~ 12 and j~king rig 10 l~mediatqly 28 after the in~tallation of ~ei~mic iaolator 14 and flat ~¢k 140 27 ~n column 12. It is to be und~rstood, however, that at th~ com-28 ~encement of the ~thod ~tep~ de~cribed immediately hereinbelow 29 column 12 i3 unmodified.
At the commen~ement of the in~tallation of ~a~king rig 31 10 ¢lamp 16 and lts as~ociated collector beam 20 are ~sembled 32 on floor 42, around the ba~e of column 12.
!
:1 At 'che beginning of -hi as~embly prc3~as~ th~ ~our 2 p~ripheral beam~ ~0 of cGllector beam 20 a~e di~po~sd on floor 3 4a around the b~ o column 1~ ~nd th~n bolted tog~ther l~y ~ult-4 able ~olt~ 94 tFig~ 7) .
6 Clamp 16 i~ then d~s~mbl2d on intermedi~t~ m~Ml~er 20.
The extent to which clamp 16 c:an be E~reas~embled b~Pore belng 7 a~omb3.ed orl inte~:m~ t~ membor 20 19 ~epend~nt upon ~uah ~¢-8 tor~ as th~ ~vail~ble c:l~arance ~round column 12 and ~hq! avall-~ able he~dspa¢e.
A~suming, however, that clearanc~ ~nd he~d~pac~ ~r~
11 st~ictly limite~, ~ach jaw o~ c:lamp 16 mu~t be ~eparat~ly mounted 12 on 2nd bolted ~co it~ a~socialted periphQral b~am, ~n~ then the 13 jaws joined tog~ther by me~ns of rods 46.
14 Aft~r th~ in~allation of rod~ 46 ~lamp 16 1A rais~d 15 to th~ position ~h~:swn ln Flg. 1, ~.g., by m~ln~ of ~ultabl~ chaln 16 ~ .
17 With clamp 16 thu~ held in the po~i~ion shown in Fig.
18 1, rod~ ~6 are ten~ion~d ~o ~rict~onally engage clamp 16 with lQ column 12.
In a~coxdance with the method of ~he pre~err~d embodi-21 m~nt of my invent~on rods 46 ar~ not ten~ioned by taklng up nut~
22 48. Rather, rod~ 46 ar~ succe~ively ten~ioned by m~n~ of the 23 rod tension device ~hown in Fig. 3, an~ then nut~ 48 are ~t up, 24 l.e., brought lnto con~act with their a~ocia~ed wa~her~, while 25 their respective a~ociated rodz 46 are held in ten~ion by the 2~ rod ten~ioning devic~ of pl~. 3, o~ ~everal of th2m.
27 Re~errin~ now to Fig. 3, there i~ ~hown one ~nd of a 28 rod 46 of clamp 16 and a partial, section~l view o~ th~ cl~mping 29 beam 44 through whi~h it passe~.
Also ahown in Fig. 3 i~ the nut ~8 which i~ threadedly 31 Interengaged with the end o~ rod ~6 shown therein, and the wa~her 32 50 which co~cts ther~witb.
~` . ~ ~fJ ~
1 Al~o ~hown in Fig, 3 i8 a bolt ten~1Ono~ lltS o~ tho 2 well known type made and 801~ by ;31~ch Indu~trie~, ~nc., of 3 Cranford, New Jer~eyO
4 Bvl~ tensioller 116) ln the known manner, i~ cc~mpr~ed ~!i of an outer hous1ng 1~ in whlch z~ puller 120 is alidably engagE~d.
~i A hydr~u~ lin~ 122 communicat~s ~hrough ~he w~ll of hc~wlng 7 118 with a worlting 1uid c:hamber 1~ whioh 1~ di~pO8~ b~we~n 8 an internal ~houlder o~ housing 118 ana an exéern~l ~hould~r of Ç~ puller 1~0, ~ydxaulic ~luid under pre~ure suppli@d vla hydr~u 10 llc llne 122 ia malntain~d wil:hln worklng ~lu1d ch~nber 124 by 11 sliding fieals 126, 128.
12 Bol'c ten~ioner 116 i~ further compr1sed of a nu'c ~urn-1~ ing mechanism 13û, including a collar 132 which embrace~ nut 48 14 and i8 rol:atable about its ~:omm~n axi~ with nut 4~ by manu~lly 15 rotating handle 134, 1~ It i~ to be un~erstood tha~ the n~ 48 lo~a~d ~1: th~
17 opposite end of ro~ 46 ~B engaged w1th the thread~ at ~h~t end 18 o~ rod ~6, ~nd bears upon it~ a~sociat2d wa~her 50.
19 In ac~ordance with the pre~erred embodiment of th~
20 method of my ~nvention, then, hydraulic fluid under pre ure iz 21 supplied to working flu~d chamber 124, which oauses puller 120 ~ to be thru~t outwardly f~om hou~lng llB, thus brlnqing rod ~6 23 under tension, 24 When the ~en~ion in rod 46, ~8 determined from the 25 pre~ure of the hydraulic ~luid ln hydraulic line 1~2, r~8ch~ a 2~ predetermined level, precalculated to correspond to th~ de~lred 27 cl~mping force on ~olumn 12, handle 134 i~ manually rotated unt11 28 nut 48 bear~ firmly again~t w~her 50, the pre~sure of the hy-29 draulic fluid in working fluid chamber 124 is discontlnued; pull~r 30 120 $8 unscrewe~ from rod 46, and bolt ten3ioner 116 i8 removed 31 ~rom rod 46, for ~ubsequ~nt u3e on another rod 46 o~ the sam~
32 s~t.
` ~ 2~ 3~
1 Re~erring again to Fig. 1, and continuing wlth the 2 d~crip~ion cf the ~n~tallat~on o~ jacking rig 10 in ~ccord~nc~
3 wl'ch th~ methoq ~ tha fir~t pref~rYed ~mb~dimont o~ my lnven'cis:~n~
41 it will be under~os~d that cl~mp 16 and intermediate memb~r ~0 6 are now 3ecured ~o unmodif ied r~inforced concr0te column 1~ in ~he po~ition illustrated in Fig. 1, and ~chat none of ~he o~her 7 p~rts o~ king rig 10 ~hown in Flg. 1 ~r~ yet in plac~.
8 In a¢cordanc~ wl ~h the n~xt step o~ th~ m~thod of th~
~ preferred embodinlent of my inv~ntion, th~ parts of cl~mp 18 ar~
lO then assembled around column 12 on floor 42, whereafter ~he peri-11 pheral beams 10~ of collector beam 22 are di~ ed upon their 12 corre~pondir~g jaws of clamp 1~ and ~ecured thereto by a~ener~
13 102.
14 ~he individual peripheral beam~ 100 are then bolted 15 together by mean~ of ~uitable bolts g4 (Fig. 7) l an~ thus inter-16 m~diate member 22 i8 completely a~emblecl upon clamp 18.
17 Afte~ th~ a~s~mbly of ::lamp 18 and inter~edi~t~ member 18 22 about column 12 a~ immediately herelnabove de~cribed the~
19 elements are ~ointly rai~ed by means of ~uitabl2 chain fall~ to the position ~hown in Fig. 1.
21 Clamp 18 i~ then frictionally engaged with column 12 22 by tensioning rod~ 1~6, setting up nuts 138, etc., a~ de~cribed 23 herein~bo~e in aonn~ction wlth rods 46, nuts 40, et¢~
2~ A~ will now be understood by ~ho~e having ordinary 25 skill in the art, informed by the present di~closure, at thi~
27 A3 urth~r ~een in Flg. 2, eaoh ~hoe i~ provlded wlth 28 a facing 54 which i8 interposed between the 3hoe and the corre~-2~ ponding face of column 12. Thu~, ~or example, a faclnq 54-7 1~
30 ln'cerpo~d between ~hoe 52-7 and column 12, and a ~cond facing 31 54-8 is interposed between shoe 52-8 and column 12.
~6&~ ~
1 In the pre~erred emhodiment of my lnYention ~ch o 2 'che ~acing~ 5~ i8 a p~ ece of oak planking the length ~nd width ~ o~ wh~ch is Rub~tantially equal to ~che leng~ch ~n~ w1d~ch ~ ~ha 4 çho~ with whic:21 it coope;rat~, and i~ adh~red ~co the ~ho~ wlth ~S which it cooper~te~ by Dl~a~ of a ~ul~cabl~ el~oxy c~n~ or 'cbe B like. ~hu~, fc)r exannple, f~o~ng 5~-7 18 a pi~c~ o~ oak planking 7 which i~ adhere~ by epoxy cemenlt to ~he fac* of ~hoe 52-7 whl~h 8 i8 mo~t cl osely j uxtapo~ed to column 12 .
0 I~ o be p~r'clcularly noted th~t in the pref~rred 0 embodlment the facing~ 54 are pieces of ~olid oak planking~ ~nd 11 not pieces of oak plywoo~ 9 or p~ ec~ of plywood th~ out~r ven~er~
l:l of wh i ch are oak .
13 It is to be understood ~hat my invention i~ not limited 14 to the employment o~ oak planking material ~or the shoe facing~.
As m~y further be seen by comparison o~ Flq~. 1 and 2, 16 a plural~ ty of ~uitable ~asteners 56 are provided wher~by oaoh 17 ~hoe 52 18 a~ix~d to ea~h on~ o it~ ~:orr~ponding ~ of thr~
18 clamping beams 44.
19 Thu~, it will be under~tood by 'chose having ordinary :20 skill in the ~rt, informed by the pre~ent di~closure, that olamp ~1 16 i~ oomprised of ~our ~aw a~embl~es, each ~w ~ssembly b¢ing 22 compri~@d of ~wo- ~3hoe~ 52, thr~ ~lamplng be~ms ~4, ~nd two fao-;~3 ing~ 5~, all QiE the~e p~rt~ o~ ~a¢h jaw a~embly being ~oln~d 24 togeth~r in th~ m~nn~r de~crib~d h~relna~ve.
It i~ to b~ particularly noted, a~ from Fig. 2, that 26 each pair of facing~ 54, taken together, extend~ subntantlally 27 ~omple'cely acro~s the face of column 12 wh$ch tho~e facinga en-28 gage. l~hus, it will be noted in E~ig. 2 that faclng~ 54-1 and 29 54-2, taken together, extend sub3tantl~11y completely acro~ the 30 f ace of column l 2 upon wh ic:h they bear .
31 Referrlng now to Fig~. 5 and 6, and comparing the s~me, 32 it ~ill be seen that each shoe 52 iB provided wlth an end platQ
~ff~,~S~
1 5~. Thu~, for ex~mple, sho0 52~ provide~ with ~n end pï~t~
58-1, and shoe 52-7 i~ provided ~ith an end plat~ 5B-7.
3 li ach end plate i8 ~ecured to it~ a~oc:ia~ad ~hc~e by 4 suitable mear.~ such as el~3ctric arc welding beads~
A8 further seen by compari~on of Flg~ 4 and 5, each ~3i end plat~ 58 projecta outwardly from ~he ~hoe 52 of which it 18 7 a part. These outwar~ly proj~cting portions o~ ~nd plate~ 5a 8 will respectively be r~erred ~o her~in as the "~ongu~" of ~h~
~ re~pective ~hc~e~ 52.
A~ best seen in Fig~ 6, each ~ongue i~ provided wi~ch 11 two elonga~ed slQt~ 60 adap~ed to ~l~dably receive ~ suit~ble 12 fastener 62 one end of whlch i8 engaged with ~he upp~r plate o 13 int~rmedla~e member or collector beam 20.
14 ~hu8, it w~ll be ~en by tho~e h~ving ordinary sk111 15 in the art, informed by the pre~ent di~clo~urs, that e~oh ~hoe 18 of clamp 16 i~ adapt~ to be s~curQd to int~rmedl~ memb~r or 17 collector beam 20 by mean~ o~ a pair of ~asten~rs 6~. q!he pro-18 vision of elongated 810tl3 60 maks~ it possible to ad~pt ~acking 19 rig 10 to reinforced concrete columna which differ ~omewhat in f~ce-to-face dimen~lon, al~hough all ~re within st~nd~rd tol~r~
21 ances. This difference in absolute ~ace-~o-~ace dlmen~10n0 i~
2~ found p~rt~aul~rly ln re~angular r~inforo~d concreto oolu~ns.
~3 It is to be particularly noted in ~ig. S that cla~ping 24 beams 44 are of tbe double-web I beam variety~ e~gO~ ~h~t cla~p-lng beam 44-12 has ~wo web~ 64-12 and 6~-120 ~hu~ een in 26 Fig. 5, clamping beam 44-12 i~ compri~ed o~ two ~eb~ 64-1~, 6C-27 12 which extend bet~een end platea 6B-l2 and 70-12, and web~
28 64-12 and 66-12 are ~ffixed to end plate8 68-12 and 70-12, ~ by 29 elec~ric arc welding.
It is t~ be noted that each clamping beam 44 ia ~iml-31 larly co~prised of two web~ and two end platQs, and tha~ the 32 respective web~ and end plate~ o~ each clamplng beam ~re mutually 2 0 ~
1 ~olned togeth~r by ~ 'cric arc welding in ~he con~gur~tlon 2 indicated in ~ig. 5, 91 Referrln0 now to Figo 4~ it will be ~e~n th~t e~cb rod 4 46 pa se~ through a clrcular hole 72 ~ n the web of each o its two a~o¢iated ~ho0~ 52. Thu~, fo~ ex3mple, rod 46-10 pa~
~hrough a ~lroular hol~ 7~ in the web o lk~ o~la~ed sho~
7 52-1, and ~l~o pa~e~ through ~ cir~ul~r hol~ 7~ in the web of 8 it~ other a3~0ciat~d shoe 52-2. Thu~, a~ will be evldent to ~ ~bo~ h~ving ordinary sklll in ~he ~r~, in~ormed by th~ pre~ent 10 dlsclosure, each vertically aligned set of thr~e roda, e.g~, Il 46-10, 46-11, 46-~2, i~ interlock~d wi~h a pair of ~ho~ nd 12 thus is al80 interlocked with the ~hr~e cl~mping b~am0 ~hich are 13 af~ixed ~o that pair o ~hoes, i.e., each vertically allgned ~et 14 of three rod~ i8 ln~er~onnected with ~n as~ociated jaw ~embly~
(Jaw asse~bly 78-1, for example, ~Fig. 2) i~ ~ompr~ed of ¢12~p-16 ing beams ~4-1, 4~-2, 44-3, shoes 52-1, 52l-~, and f~cing~ 54-1, 1~ 54-2.3 It ollow~, then, that in accordance wlth the principl~
18 of my lnventlon ~ach jaw a~sembly 7a i8 interlocked wlth a verti-19 cally aligned ~et of rod~ and remain~ ~o unles~ these ro~a are 20 aotu~lly withdrawn fro~ thelr a~sociated holes 72.
21 As ~een in Flg~. 2 and 7, however, ~h~ outer end~ o~
22 the rods 46, whlch pa~s through clamping beam~ 44, pa~ through ~:
2~ ~lo~ 74 thQ upper ~nd lo~r surface~ of whioh ar~ d~ined by 2i the upper and lower web~ of ~he re~pectiv~ clamp1ng besm~ 4~.
2~ It ~ollow~, then, that in accordance wi~h the prin-2ff ciples of my inven~ion eAch jaw a~sembly 78 and it~ a~sociat~d 27 se~ of thre~ vertically al~gned rQds may be disa~embled from 28 the remainder of clamp 16 when the nut~ and wa~hers h~ve b~n 29 removed from all of the rod~ perpendicular to thA~ ~w a~embly, 30 and that thu~ each j~w assembly 78 and lts assoclated rods may 31 be conveniently removea from clamp 16 and transported to anothor 3~ column of the sa~e building without di~as~embling the as~ociated ~`
1 rod~ from 'ch~ ~a~ a~a~mbly, wh~n condltions ~u~h zl~ th~ ~cc~
2~ blll~y o~ ~che ~wo column~ mak~ it pos~lble to ~o 30.
~ Clamp 18 i8 #Ub~t~ntially iden1:lc~1 in ~truc'cur~ to 4 clamp 16, and 'chus the ~aw a~embll~ f ~w ~,~ may 01mllarly b~
5 conven~ ently main'cained ~IB complete a~emblle3 ~hil~ being re-$ moved from col~mn to eolumn in ~ buil~ing, ~f condi~ion~ perrsllt.
7 Referring now to Fig. 7, it will be ~en ~h~t inter~
8 mediate member or collecl:or beam ~0 i9 comprised of four peri-~ pheral beam~ 80-l, 80-2, 80-3, 80-4.
Peripheral beam 80~ comprised of 'cop plate 82-l, ll bottom pl~e 84-l, web 86-l, cros~web~ 87-l, 8B~ nd end pl~tes 12 90-l, 92-l, all of which are ~oined together ln the cc~nflguration 13 ~hown in Fig. 7 by arc welding. The other ~hree peripheral be~ms 14 80-2, 80-3, 80-~ of interme~ial:e member 20 are compri~2d o~E ~ub-1~ stantially iden~ical par~co, ~3~embled in the samQ w~y. lror exam-lB ple, cro~web~ 87-l, 88-3 of peripheral beam 80-3 are an~l~gou~
17 to crosswebs 87-1, 88-l~ of peripheral beam 80-l.
18 A~ also ~en ln ~ig. 7, per~pheral beam~ 80 are ~oined l~ to form int~rm~diate member 20 by meana of 0uitabl~ nuts and 20 boltR 94.
21 A~ shown in phantom ln Fig. 7, and expl~lned hereinabov~ :
22 in connection wlth Fig~. 5 and 6~ jaw a3se~blies 78 are a~t~ned 23 to re~p~t~ve p~riphor~l b~am~ 80 b~ m~ns o~ ~ul~blo aot~n~r~
24 62 (Fig. 6).
~ seen in Fig. 1, ~uitable bearing plate8 96 nnd 26 associated collar~ 98 are affixed ~o ~nt~rmediate member 20 at ~7 each corner thereof, for receiving the upper endH of the ~a~o~
28 ciated jacking po~t8 28, 30, 35, 38.
~9 ~ferring again to Flg. 1, it will be seen that cla~p~
30 inq a~sembly or clamp 18 i~ substantially identical to clamping 31 asse~bly or clamp 16 but i~ a~aembled around column 12 in lnvertad 32 or mirror image orientation with respect to clamp 16.
1~ 2~3661~
1 i~8 wlll also be se~n in ~ig. 1, int~rm~dla'ce m~mb~r or 2 coll~c~or b~am 22 i~ ~ubs~an~ lly l~Qntic~l to collQc'eor ~m 3 20 bu~ for the fact that it i 8 a~ap~ed to be mount~d on th~ upp~r 4 end of clamp 18, and is ad~pted ~o receive ~hck~ 24, 26, ~2, 3~.
Thus~ int~rmediats m~3mber ~ provld~d wi~h sultllbl~
openings in the bottom plate o eac:h o~ it~ p~ripheral b~m~ 100 7 to rec~ive sultable a~t~n~r~ 102 wher~by lt i8 aix2d ~o ~b~
8 ~op plate~ 1û4 of the shoe6 106 o~ clamp 18.
9 Further, a bearing plate 108 i8 affixed to each corn~r 10 o~ intermedla~ce me~ber 22 to ~uppor~ a corr~spondlng onQ o~ th~
11 ~ack~ 2~, 2S, 32; 3~, and a coll~r 110 i8 ~fix~d to ~ch be~rin~
1~2 pl~ce 108 ~o maintain ~he a~ociated ~ack ln po~itlon on ~h~
13 bearing plate.
14 A~ ~urth~r ~n in Fig. 1, ea~h ~ck po~t ~8~ 30, 36, 15 38 ie provided at it3 lower end with a auitable bearlng pl~t~
1~ 112 and collar 114 to r~eive the ram of the a~oci~t~d ~a~k, 17 . .
18 ethod of Installin~ the Jackinq Ri~
1~ of th~ ~irst Preferred ~mbodiment .
21 With reference to F~g. 1, the method of my invention 22 for ~nstall1ng ~a~king rlg 10 on re~nforced concrete column 12 23 will now be described in detail.
24 It i~ to be noted in thls oonn~ctlon tha~ Pi~. 1 illu-25 ~trates ~he condition of colum~ 12 and j~king rig 10 l~mediatqly 28 after the in~tallation of ~ei~mic iaolator 14 and flat ~¢k 140 27 ~n column 12. It is to be und~rstood, however, that at th~ com-28 ~encement of the ~thod ~tep~ de~cribed immediately hereinbelow 29 column 12 i3 unmodified.
At the commen~ement of the in~tallation of ~a~king rig 31 10 ¢lamp 16 and lts as~ociated collector beam 20 are ~sembled 32 on floor 42, around the ba~e of column 12.
!
:1 At 'che beginning of -hi as~embly prc3~as~ th~ ~our 2 p~ripheral beam~ ~0 of cGllector beam 20 a~e di~po~sd on floor 3 4a around the b~ o column 1~ ~nd th~n bolted tog~ther l~y ~ult-4 able ~olt~ 94 tFig~ 7) .
6 Clamp 16 i~ then d~s~mbl2d on intermedi~t~ m~Ml~er 20.
The extent to which clamp 16 c:an be E~reas~embled b~Pore belng 7 a~omb3.ed orl inte~:m~ t~ membor 20 19 ~epend~nt upon ~uah ~¢-8 tor~ as th~ ~vail~ble c:l~arance ~round column 12 and ~hq! avall-~ able he~dspa¢e.
A~suming, however, that clearanc~ ~nd he~d~pac~ ~r~
11 st~ictly limite~, ~ach jaw o~ c:lamp 16 mu~t be ~eparat~ly mounted 12 on 2nd bolted ~co it~ a~socialted periphQral b~am, ~n~ then the 13 jaws joined tog~ther by me~ns of rods 46.
14 Aft~r th~ in~allation of rod~ 46 ~lamp 16 1A rais~d 15 to th~ position ~h~:swn ln Flg. 1, ~.g., by m~ln~ of ~ultabl~ chaln 16 ~ .
17 With clamp 16 thu~ held in the po~i~ion shown in Fig.
18 1, rod~ ~6 are ten~ion~d ~o ~rict~onally engage clamp 16 with lQ column 12.
In a~coxdance with the method of ~he pre~err~d embodi-21 m~nt of my invent~on rods 46 ar~ not ten~ioned by taklng up nut~
22 48. Rather, rod~ 46 ar~ succe~ively ten~ioned by m~n~ of the 23 rod tension device ~hown in Fig. 3, an~ then nut~ 48 are ~t up, 24 l.e., brought lnto con~act with their a~ocia~ed wa~her~, while 25 their respective a~ociated rodz 46 are held in ten~ion by the 2~ rod ten~ioning devic~ of pl~. 3, o~ ~everal of th2m.
27 Re~errin~ now to Fig. 3, there i~ ~hown one ~nd of a 28 rod 46 of clamp 16 and a partial, section~l view o~ th~ cl~mping 29 beam 44 through whi~h it passe~.
Also ahown in Fig. 3 i~ the nut ~8 which i~ threadedly 31 Interengaged with the end o~ rod ~6 shown therein, and the wa~her 32 50 which co~cts ther~witb.
~` . ~ ~fJ ~
1 Al~o ~hown in Fig, 3 i8 a bolt ten~1Ono~ lltS o~ tho 2 well known type made and 801~ by ;31~ch Indu~trie~, ~nc., of 3 Cranford, New Jer~eyO
4 Bvl~ tensioller 116) ln the known manner, i~ cc~mpr~ed ~!i of an outer hous1ng 1~ in whlch z~ puller 120 is alidably engagE~d.
~i A hydr~u~ lin~ 122 communicat~s ~hrough ~he w~ll of hc~wlng 7 118 with a worlting 1uid c:hamber 1~ whioh 1~ di~pO8~ b~we~n 8 an internal ~houlder o~ housing 118 ana an exéern~l ~hould~r of Ç~ puller 1~0, ~ydxaulic ~luid under pre~ure suppli@d vla hydr~u 10 llc llne 122 ia malntain~d wil:hln worklng ~lu1d ch~nber 124 by 11 sliding fieals 126, 128.
12 Bol'c ten~ioner 116 i~ further compr1sed of a nu'c ~urn-1~ ing mechanism 13û, including a collar 132 which embrace~ nut 48 14 and i8 rol:atable about its ~:omm~n axi~ with nut 4~ by manu~lly 15 rotating handle 134, 1~ It i~ to be un~erstood tha~ the n~ 48 lo~a~d ~1: th~
17 opposite end of ro~ 46 ~B engaged w1th the thread~ at ~h~t end 18 o~ rod ~6, ~nd bears upon it~ a~sociat2d wa~her 50.
19 In ac~ordance with the pre~erred embodiment of th~
20 method of my ~nvention, then, hydraulic fluid under pre ure iz 21 supplied to working flu~d chamber 124, which oauses puller 120 ~ to be thru~t outwardly f~om hou~lng llB, thus brlnqing rod ~6 23 under tension, 24 When the ~en~ion in rod 46, ~8 determined from the 25 pre~ure of the hydraulic ~luid ln hydraulic line 1~2, r~8ch~ a 2~ predetermined level, precalculated to correspond to th~ de~lred 27 cl~mping force on ~olumn 12, handle 134 i~ manually rotated unt11 28 nut 48 bear~ firmly again~t w~her 50, the pre~sure of the hy-29 draulic fluid in working fluid chamber 124 is discontlnued; pull~r 30 120 $8 unscrewe~ from rod 46, and bolt ten3ioner 116 i8 removed 31 ~rom rod 46, for ~ubsequ~nt u3e on another rod 46 o~ the sam~
32 s~t.
` ~ 2~ 3~
1 Re~erring again to Fig. 1, and continuing wlth the 2 d~crip~ion cf the ~n~tallat~on o~ jacking rig 10 in ~ccord~nc~
3 wl'ch th~ methoq ~ tha fir~t pref~rYed ~mb~dimont o~ my lnven'cis:~n~
41 it will be under~os~d that cl~mp 16 and intermediate memb~r ~0 6 are now 3ecured ~o unmodif ied r~inforced concr0te column 1~ in ~he po~ition illustrated in Fig. 1, and ~chat none of ~he o~her 7 p~rts o~ king rig 10 ~hown in Flg. 1 ~r~ yet in plac~.
8 In a¢cordanc~ wl ~h the n~xt step o~ th~ m~thod of th~
~ preferred embodinlent of my inv~ntion, th~ parts of cl~mp 18 ar~
lO then assembled around column 12 on floor 42, whereafter ~he peri-11 pheral beams 10~ of collector beam 22 are di~ ed upon their 12 corre~pondir~g jaws of clamp 1~ and ~ecured thereto by a~ener~
13 102.
14 ~he individual peripheral beam~ 100 are then bolted 15 together by mean~ of ~uitable bolts g4 (Fig. 7) l an~ thus inter-16 m~diate member 22 i8 completely a~emblecl upon clamp 18.
17 Afte~ th~ a~s~mbly of ::lamp 18 and inter~edi~t~ member 18 22 about column 12 a~ immediately herelnabove de~cribed the~
19 elements are ~ointly rai~ed by means of ~uitabl2 chain fall~ to the position ~hown in Fig. 1.
21 Clamp 18 i~ then frictionally engaged with column 12 22 by tensioning rod~ 1~6, setting up nuts 138, etc., a~ de~cribed 23 herein~bo~e in aonn~ction wlth rods 46, nuts 40, et¢~
2~ A~ will now be understood by ~ho~e having ordinary 25 skill in the art, informed by the present di~closure, at thi~
26 s~a~e of the method of the preferred embodlment oP my invention 27 clamps 16 and 18 and their a~30clated in~ermediate member~ are 28 positioned on column 12 a~ illu~trated in Fig. 1, but the portion 29 of reinforced concrete column 12 located therebetwe~n l~ unmodi-30 fied.
31 As the ne~t step of the method of the fir~t pr~ferred 3~ embodimen~ of my invention jack~ 24, 26, 32, 34 are dl~pos~d 3 ~ J
1 upon bearing plates 108, within collar3 110, o int~rm~di~te a~ member 22, the ram~ o~ the3e jac~ being fully retrac~ed.
~ After the empl~oement t~ the ~aoh:~ upon th~ bearing 4 plates of intermediate member 22 ~acking po~ts 28, 30, 36, 38 ~5 are di3posed upon ~che ram~ o th~ corre~ponding ~aak~ ~, 26, 32, 3~ witb th~ collar 114 o~ e~ch ~aaklng po~t surrour~ding th~
7 upper end Q i1:8 ~ssooia~d ramO ~hus, it wlll b~ ~en by those 8 having ordinary skill in the art that ~he upper end of Q~ch ~ack-~ ~ng post is regi~te~ed with a ¢ollar 98 an~ bearlng pla~c~ 96 o~
10 i n~rmed i ate member 20 .
11 At thi~ ~lme all ~our ~aoks ~4, 26, 3~, 34 sre coupled lZ~ by a common hydraulic line connection to a ~ingle sour ::e of hy-13 draulic fluld und~r sel~ctlvely controlla~le pres~ur~.
14 ~y thus equ~lly ln~ecting hydrauli¢ fluld under pre~-15 sure into all four jacks, the rams o those jack~ and their a8~10-16 ciated jacking columns are rai~ed until the four jacking columns 17 are ~eated against their associated bearing plate~ 96, which are 18 themselves a~fixed to the lower ~urfaae o~ int~rmedia~se member .
~9 20., 8ubsequently, by equally rai~ing the pres~u1:e o~ the 21 hydraulic 1uid in each of the four ~ack~ the ls~ad borne by l:h~
22 8ec:tion o column 12 located betsl~een Cl~lllp8 16, lE~ i8 comple'Lsly 2~ assumed by ~acking rig 10. Thl3 sec~ion o~ column 12, 90metime13 24 c~lled the "unloaded s~ction" herein, c~n then be r~p~ir~d or 25 otherwise modified, e.g., by the sawing out oP a ps~rtion o~ col-2f~ umn 12 and the in~ertion in its atead o seismic i8~ 'cor 14 and ~7 flat jack 14û.
28 When the desired repalr or modification o~ the unlo~dod 29 ~ection of column 12 has been completed clamps 16, 18 and inter-30 mediate member~ 20, 22 ~re d~ ~a~embled and removed from column 31 12 in the manner which will now be evident to tho~e havlng or~l-32 nary skill in 'che art, inform~d by the pre~ent di~closur~.
~ 2 ~ C3 ~
1 It 1~ to be noted, however, thzlt when ~h~ port10n ln-2 serted in~o column 12 extend~ beyorld the periphe~y o~ co~u1nn 1~, 9~ aB $13 thQ ~88 wi~ch ~ mic i3c31A~cor 14 and 1at ~ck 140, l'c 4 m~y be necessary to disa~emble clamp 16 ~nd rem~ve it from ~ collector beam 20 before lowQring it to floor 42. Inde~, lf 6 the in~erted portlon ext~nds conslderably beyond the horizontAl 7 periph~ry of colu~nn 12 1 t may al~o be nece~sary to ~1180 di8~1~B~m-8 ble collector b~am 20 ~n the pt:l8'1 tlon ~hown in ~19. 1 b~ore ~ removing it from column 12.
~hlle the method and apparatu~ of the f irat pr~ferr~d 11 embodi~nent of my invention described immedi~ately hereinabDv~ may 12 be u~ed for the repair or modi~ication o~ virtually any rein-13 forced concrete column, the par~cicular ~ mic ist)lator 14 and 14 flat ~ack 140 which wer~ inserted into columrl 12 ln the actual 15 reductlon to pra¢tice o~ the ~irat pr~err~d Qmbodim~n~ are ~hown 16 1n Flg. 10 for con~pletenes~ of disclosure.
17 A3 ~een $n F1g. 10, seism~c i~ola~or 14 dnd 11~t ~as:k 18 140 were inserted into column 12 ~a integral Unitfi.
19 Sei~mic isolator 14, also known as an "1aolat~on be~r-20 ing~, wa8 de~igned by Dynamic ~ola~-ion Sy~tem~ of Berke~ey, 21 California, and consis~s of a rubber oover, ~teel load plate~, 22 ~nd alt~rn~ting lay~rs o a~el roin~or~lng and rubbor, ~nd w~
23 described in ~h~ publication ~Enginearing New~ Record~ on O~tsb~r ~4 5, 1989, at page ~6.
A~ also seen in Fiq. 10, a device 140 o~ the type kno~n 26 a~ a flat jack wa~ inserted in column 12 above ~eiamic i~olator 27 14.
28 ~he flat jack employed wa~ d ~la~ jack of the type 29 made and sold by ~he Freys~inet Company, Inc., and 1~ a hydraulic 30 cap~ule in the form of a flat double ~auoer, made of two circul~r, 31 soft-grade steel ~tampings welded and heat-treated to produce 32 the required internal pr~ure, strengths and flexibility. The ` ~ff~ f~'~f'i3~
fl~t ~ack u~ a loo~ely ~4 ~ Ql thru~t pla~ n 1, 140-2 2 ln e~ch ~auce~ ~acQ. ~ac~ 140 has ~n lnl~t ~or ln~la~ion oqulp-p~d with an @x~en~on plece whl~h 18 conneoted ~o ~ hydraullc 4 line 1~2, ~nd has ~n outlet ~or the esc~pe o air there~ro~
In accordanoe wlth well known pr~ctice, ~la~ ~ack 140 was inflated undef~ pre~ure u~L~g ~ hard-~e~ting ~poxy grout 7 which hardens ~ith negligable shrlnkage over ~ ~hort, controlled 8 perlfod, whereater flat ~ck 140 and thrust pla~e~ 1~0-1, 140-2 ~ remained, and will re~aln, perm~nently in~talled in column 12.
It is al~o to be no~ed tha~ jack~ 24, 2S, 3~, 34 ar~
11 o the ~ype sometime~ called ~locknut cylinders~ whlch xre dq-12 signed for li~ing applio~tion~ where the loads ~u~t be m~ch~n-13 ically ~ecured at some point. Thus, a~ seen in Fig. 1, e~ch 14 ~ack i~ provided with a locking ring 1~4. Locking ring~ 144 ~r~
15 provided with tool-receiving op~nings deRigned to receiv~ ~he 1~ tool whereby they can be torqued about the axis of the cyllnfd~r ~
17 thu~eff mechanically locklng the ram, ~nd consequently tha load, ln 18 any position of r~m exten~ion.
1~ .
Other ~mbodiments o~ My Inventlon 21 .
2~ While the ~irst preferred embodiment o~ my invention, 23 which ha~ b~n ~ctually ~aduo~d to practlo~, has bc~n ~s~rlb~d 24 in great detail hereinabove, and ~hown ln great det~il in ~ig~.
Z5 1 through 7, it i~ to be unders~ood that my invention i9 in no 26 .~ense limited to that par~i¢ular embodiment, but r~her can be 27 embodied in many other structural ~orms, and i~ applicnble to 28 virtually any type of reinforced concrete column, as incorpor~ted 2~ in many structure~ other than building~, e.g., aqueduct~, stadiD
um~, bridge~, freew~ overpa~e~.
31 Referring now to Fig. 8, there iB ~hown a ~acking rlg 32 150 constructed in accordance with a ~econd preferred embodiment w23-.3 i~
1 of my invention.
2 A~ ~e~n in Flg. 8, a relnorced c~onerete ~olumn 152, ~ whlch i~ inkerior to ~n exi~ting building, extends between a 4 be~m 154 and a plle cap ound~ion 156 v p~ing 'chrough twa ~loor~
5 158, 160 o~ the building.
In ~his 2mbodiment only one clamp 162 and one collector 7 be~m lS4 are employed .
8 Clamp 162 1~ ~tructurally ~imllar to clam~ 16 ~nd 18 9 of the fir~t pre~erre~ em~odlment, but ~3ue 'co the greater load 10 to be borne thereby cla~np 162 i~ c:ompri~ed of more claD~Iping beam~, 11 more rods, longer shoe~, etc., all a~ will be evldent 'co 'choEle 12 having ordinary ~kill in the ar~, in~ormed by the pre~ent di~-13 closure, comparing Fig~. 1 and 8.
14 As also may be ssen by Qomparlson of Flg~. 1 and 8, 15 collector beam 164 iB corre~pondingly proportioned as compared 1~ with collector beam~ 20, 22 of the firs~ preferr~d embodimen'c, 17 ln accordance with th~ grea~cQr load to be borne by ~aoklng rlg 18` 150.
1~ Thu~, as will be under~tood by tho~e havln~ ordin~ry 20 skill $n the art, informed by ~he pre~ent di~clo~ure, ~he number&
21 and ~tr~ngth of part~, etc., of the c~lamp~ and collsctor beAms 22 of various embodimgn~s of my inven'cion will vary in accordance 23 with the load to be borrle therebys 'che determinatiorl of the nuJn-24 bers of parts , ~trengths of part~ ~ etc ., ~or any partloular ln-25 ~tallation being well w$thin the ~3COpQ of those having ordinary 26 3kill in the ~rt, informed by the pre~ent di~clo~ure.
27 Returning to Fig. 8, and notlng the gap in column 152, ~8 it will be understood that a~ ~hown in Fig. 8 clamp 162 ha~ been ~g clamped to the upper portion of column 152 in the manner herein-30 above de~cribed in connection with the installation of ~acking 31 rig 10 of the fir~t pr~ferFed embodiment, 3~ ///
~ 21~3~
1 As ~l~o ~een in Fig. ~, the gap 1~ too 0108e to ~loor :1 158 to permit th~ ins~all~tion of a clamp and coll~ctor beam o ~ the invention below ~he g~p. qrherei~ore~ it becamQ n~c~s~ary ~o 4 pt~38 the load ~rom collec~or beam 164 through floor 158, through 6 floor 160, and ~o ~lnal aupport on the pile ~:ap ~oundation, and ts~ do ~o without ¢~uehin~ floor~ 158~ lC0, t6~rlng 1~lo~r8 158t ~ lS0 ~rom column 152~ or oth~rwi~e in~uring 80me part of the 8 building .
~ It iQ ~0 be under~tood that ~he metho~ of thus pai3~ing 10 ~he load ~rom collecJcor beam 164 through floo~ 158 whlch i8 illu-11 strate~ in Flg. 8 i8 a principal feature of my lnv~ntion.
12 As ~een in ~ig. 3, ln~rme~iata m~mber or coll~cto~
13 beam 164 i8 provided at its four corners with bearin~ pl~te~
14 166, each of which bearing plates 166 bear~ upon the upper end lS of an a~ociated 3hort column member 168.
16 A b~arlng pl~co 170 and coll~lr ï72 i8 af~lxed to tho 17 lower end of ea~h column member 168.
18 Di~po~ed upon floor 158 are Eour load di~tribution 19 pla~es 174 each of which i~ provided wi'ch a plurallty of ou~-~0 standing ear~ which ~erve ~o loc~te thereon a locknu~ ~ype ~aok 21 176 similar to the ~ack~ shown in Fig. 1.
22 ~he ra~ or plBton of each jack 176 i~ receiv~d in the 23 collar 172 of a oorr~sponding column m2mber 168 and bears upon 24 the bearing plate 170 a~fixe~ thereto~ ~o that ~h~ load borne by 25 clamp 162 and colle~tor beam 164, and the weight of clamp 162 26 and of collector beam 164, are diatributed equally between the 27 four di3tributor plate~ 174 when the ram~ of all four ~a¢k~ 176 28 pre~s again~t the lower ~ce8 O~ thelr a~sociAted bearinq pl~t~s 29 170.
As furth~r se~n in Fig. 8, four load distribution plates 31 178 bear again~t the lower ~ce of ~loor 158, each in direct 32 ~uxtapo~ition to one of ths load distribution plate~ 174 which 2~ 13 3 1 bear ~gains~ the upp~r aur~aa~ o ~loor 15B.
Each load di~tributlon plate 178 i~ a~ixed to th~
3 upper ~nd of one o~ four ver~i~al support column ~e~x~ 180.
4 The four ~upport column~ 180 are maintained vertical 5 and in ~h~ same co~igur~ion as upper colu~n m~mbers 160 by a 8 yoke 181 compri~ed of four ~tru~s 18~ ~he proYision o~ which 1~
7 within the ~cope of tho~e having ordin~ry ~kill in the art, in-8 formed by ~he present dl~clo~ure. Yoke 181 1~ gener~lly rectan-~ gular in con~iguration, i3 ~u~iciently large in size to embrace 10 column 15~, and i~ bol~ed ~o ~upport ~he membera 180 ln such 11 manneE that i~ can be æs~emble~ around column 152 as ~h~n in 12 ~i~. 8.
1~ Further, each ~upport oolumn member laO i provided 14 with br~cket 184, whereby it can be bolted to yoke ~truts 182.
1~ Fixed to the lower end o~ each column m~mber 1~0 1~ a 16 bearlng plate 186 ~nd a collar 18~.
17 ~ach collnr 188 1~ ~o dim~n~ioned as to clos~-ittingly 18 recelve tbe ram of an a~sociated loaknut ~ack 190.
19 ~s further seen ln Fl~. 8, bo~h of the foreward~o~t 20 jacks 190 are dlsposed upon bearing plates 192, and each bearing 21 plate 192 i8 provided with a plurality of ear~ 194 adapted to 22 a881~t in locating the corresponding jack 190 on tha~ be~ring 23 plate.
24 Both o~ the ~orwardmo~t bearing plates 192 are ~fl~ed 25 to the upper surface of a b~am 196, as by arc welding.
2~ A~ al~o lndica~ed in Fig. ~, a corre~pondlng be~ 198 2~ i located directly behlnd beam 196. Beam 198 i~ ~ub~tantially 28 identical to b~a~ 196, And i~ p~ovid~d with bearing plate~ and 29 loc~ting ear~ which in ~ig. 8 are locat~d directly behlnd the 30 bearing plate~ and locating ears 192, 194 affixed to the upp~r 31 ~urface of beam 196.
3~ ///
~013~6~
1 A~ will no~ be eYident to those having ordinary ~kill 2 ln the art, lnform~ by th~ pre~en~c d~clo~ur~, the other two ~ il~¢k8 190 , 1 . ~ ., oth~s than th~ two ~orwardmo0t ~acka ~hown 4 d~rec~ly ln Fig. B, are ~isposed upon the two bear1ng plat~s 192 5 whiah are affixed to the upper ~ur~ce oiE beam 198.
0 A~ ~urther ~een in F1g. 8, b~m 1~6 bears upon the 7 upper 8u~face of ~ shim pl~t~ 2~0 the lengl:h o~ whiah doe~ not 8 exc~d th~ diameteS~ of plle a~p foundation 156.
~ It 1~ to be unàer~ood th~t beama 196 and 198 ~re botb lO loc6t~sd &108ely adjacent column 152, ~nd on oppo~l~ee ai~ the~r~-11 of, and tha~ a ~him plate 202 1~ dl~po~ed b~twe~n beam 198 and 12 floor 160, even a~ shim plate 200 i~ di~po~2d between beam 196 13 and f loor 160 .
14 As will be ev1dent to tho~ having ordinary ~kill in 15 the art, informed by the present di~clo~ure, beam~ lg6 and l9B
16 and their re~pectively a88clc~ a~ced shim plate~ 20~ and 202 s~rve 17 to ransmit the load impo~d by jack1ng rig 150 to the portions 18 of floor 160 directly underlain by the top of pile cap Pound~tion 19 156, thus distributing the load over a sub~'cantial directly ~up-20 ported area of floor 160 and avoiding injury to floor 160.
21 A~ further ~en in Fig, ~, ~he hydraulic fluid input 22 Couplings of all eigh~ ~aoks 176, 190, ~re ¢oupled to a common 23 hydraulic llne harnes~ 206 which i~ it~elf coupled to a slngle 24 hydraulic lin~ 20~, and thu~ to ~ ~our~e of hydraullc fluid un~er 25 pressure of well known type ~not shown). Thus, in accordanc~
2~ with well known hydraulic pr1nciples, the force~ exerted by the~e 27 jack~ will be 80 balanced that no vertical displacement forces 2~ will be applied to floor 158, ~nd thu~ floor 158 will not be 2~ torn from column 152 or otherwise in~ured in it~ connection~
30 wi~h o~her parts o~ the building by reason o applied vertic~l 31 force~.
2~3~ 3 1 Reerring now éo Fig. 9, 'ch0re 1~ ~hown the ~lamp por-2 tion of a ~acking rlg 210 con~truc'ced ln accordance wlth A ~hird 3 pre~erred embodlment o~ n~y invention, a~ ~pplied ~o ~ r~lnforcet!3 4 concrete aolumn 212 ~ olrcular croa~ ~ection, e.g., ~ brldg~
6 column .
AB ~een 1" Fig. 9, clamp 214 18 comprl~ed of a plural-7 i~cy of clamping beam~ 216 whlch are ~imilar in con~ruction o 8 clamping beam~ 44 of the fir~ preferred embodim~nt (Flg. 1), 9 but di~r ~ n dimension in accordance with the required ~lamping lO for~e~, which dlm~n~on~l chang~s are well with~n ~he ~cope of 11 thoc2 having ordlnary ~kill in the ~rt, inform~?d by the p~ent 12 di~closu~e~
13 ~ur~h~r, clamp 214 i~ comprised of a plurali~y of ~ods 14 218 similar to rods ~6 of the ~ir~t preferred embodiment of my lS invention ~Fig. 1) ~ and provided with threaded por ions, nuts, 16 and wa~her~ in the ~ame manner.
17 A~ al~o ~e~n in P~i510 9~ c:la;np 214 i~ compri~ed of 1~ plurality oP shoe~ 220, and a corresponding plural~:~y of shoe 19 facing~ 222.
Each shoe 220 i8 compri3ed of a pair of leg~ 224, 226 21 and a cylindrically curved shoe plate 228.
~2 ~9 224 is ~omp~ d o ~ix horizontal E~lat~ member~
23 224-1, a vertical pl~te member 224-2, and a mounting plate membar 24 224-3. Plates 224-1, 224-2, and 224-3 are af~ixed to e~ch other 25 and to the outer face of shoe plate 22~ by arc weldlng or the 26 like. Leg 226 i~ ~ub~ta~tially a mirror image of leg 22~l and 27 i~ comprised of m~rror-symmetrically ~imilar parts 226-1, 226-2, 28 22fi-3, which are joined to e~ch other and to shoe plat~ 228 in 2~ the manner shown in F$g. 9-by arc welding or the llke.
Each shoe 220 1~ af f ixed to a corre~ponding beam 216 31 by mea~s of ~uitable fa~tener~ 230 which pa88 through mounting 32 plate 226-3, and one flang~ of beam 216.
~n-2 ~J cJ .J i3 ~J ~
1 In ~h~ ~chlrd preferr~d embodiment o~ rny lnv~ntlon, ~ which 1~ adapte~ or u~e in connQc~ion with circul~r rein~orced 3 cowr~t~ colu~nn~, cla~p 210 includ~s twelve clamplng b~m~ 216, 4 dlaposed ~bout column 21~ in ~olJr ver~lc~l arrays o~ 'chre~ clAmp-lng b~ams each. ~rhu~ a~ wlll be evident to ~:ho~ having ordln~ry ~kill in the ~rt, infor~ed by ~che pre~en~c disclosure, ~ h ~hoe 7 220 will be aflxed to three vertically di~pose~ mplng bQa~a 8 216, by ~fa~tener~ 230, and wlll ~nclude a lefthand leg 22~ and A
~ rlghtband leg 226.
It ~ollow~, then, th~t ~lamp 214 will al~o lnclude 11 twelve rods 218, aerang~d in four vertical Array~ in ~ub~t~ntially 12 the same manner as the rod~ 46 of clamp lfi shown in Fig. 1. A3 13 illu~tr~ted in Fig,. 9, ro~ 218 pa~s through as~oclated hole~ ln 14 the vertical pla~ 4-2, 226-2 o~ ~hoe leg~ 224, 226.
lB As will ~ur~h~r b~ ~vlden~c to tho~e havlng ordlnary 1~ sklll ln th~ ar~, inform2d by the pr~serlt ~ losur~, ~aokln~
17 rig ~lû further ~omprlse~ an intermedl~te member or collector 18 beam similar ~o intermediate member or coll~ctor beam ~0 of Flg.
19 1. Further, shoe~ 220 Are af~ixed to thl~ coll~ctor beam by ~0 suitable fasten~rs in th~ 0am~ way in whioh ~ho~s 52 of th~ ~lr~
21 preferred embodiment are aPfixed to collector beam 20 by ~uitable 22 fastener~.
23 ~8 in the fir3t preferred embodim~nt, thi~ collector 24 beam i8 provided with suit~ble bearing pla~es and aollarB ~o 25 re~eive the upp~r ends of ~aoking postn.
26 A~ will now be evldent to tho~e having ordinary ~kill 27 in the art, informed by the pre~ent disclo~ure, a ~acklng rig 28 embodying my invention for use in connection with repairs or 29 modifications of reinforced concrete columna of circular cro~s-30 section may employ on~ or two clamps 214, associated with sult-31 able jacks, ~acking po8t8, etc., in the manner indicated in Flg.
32 I or Fig. B.
-2~-~.a3~,i3l ~ I~ wlll thus be seQn thaé the ob~ct~ Be~ forth ~sbov~, 3 among thoae mad~ app~rant ~rc~m the prece~ing desarlption, are 3 efficien~ly ~ttalned~ and since certain chang~ may be made ln 4 the above con~uc~10ns and the method carried out ~hsreby without ~ departing rom the scope of my inventlorl~ lt i~ in~ended th~t ti all ma~cter contalned $n ~he ~bove descriptlon or shown ln the aceompanying drawings ~h~ll be lnterE~reted a~ ~ llu~tr~tlv~ only, 8 and not ~ n a liLmiting sense ~ It is al~o to be understood that the following cla im~
10 are lntended to cover all of ~he gener ic and speci f lc Peatllre~
~1 c~f the invention hereincle~cribed, and all ~tatem~nts of th~ scop~
12 of my invention which, a3 a matte~ o~ language, might be sa~d 1 o 13 ~ ~ fall erebetween.
18`
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31~ .
1 upon bearing plates 108, within collar3 110, o int~rm~di~te a~ member 22, the ram~ o~ the3e jac~ being fully retrac~ed.
~ After the empl~oement t~ the ~aoh:~ upon th~ bearing 4 plates of intermediate member 22 ~acking po~ts 28, 30, 36, 38 ~5 are di3posed upon ~che ram~ o th~ corre~ponding ~aak~ ~, 26, 32, 3~ witb th~ collar 114 o~ e~ch ~aaklng po~t surrour~ding th~
7 upper end Q i1:8 ~ssooia~d ramO ~hus, it wlll b~ ~en by those 8 having ordinary skill in the art that ~he upper end of Q~ch ~ack-~ ~ng post is regi~te~ed with a ¢ollar 98 an~ bearlng pla~c~ 96 o~
10 i n~rmed i ate member 20 .
11 At thi~ ~lme all ~our ~aoks ~4, 26, 3~, 34 sre coupled lZ~ by a common hydraulic line connection to a ~ingle sour ::e of hy-13 draulic fluld und~r sel~ctlvely controlla~le pres~ur~.
14 ~y thus equ~lly ln~ecting hydrauli¢ fluld under pre~-15 sure into all four jacks, the rams o those jack~ and their a8~10-16 ciated jacking columns are rai~ed until the four jacking columns 17 are ~eated against their associated bearing plate~ 96, which are 18 themselves a~fixed to the lower ~urfaae o~ int~rmedia~se member .
~9 20., 8ubsequently, by equally rai~ing the pres~u1:e o~ the 21 hydraulic 1uid in each of the four ~ack~ the ls~ad borne by l:h~
22 8ec:tion o column 12 located betsl~een Cl~lllp8 16, lE~ i8 comple'Lsly 2~ assumed by ~acking rig 10. Thl3 sec~ion o~ column 12, 90metime13 24 c~lled the "unloaded s~ction" herein, c~n then be r~p~ir~d or 25 otherwise modified, e.g., by the sawing out oP a ps~rtion o~ col-2f~ umn 12 and the in~ertion in its atead o seismic i8~ 'cor 14 and ~7 flat jack 14û.
28 When the desired repalr or modification o~ the unlo~dod 29 ~ection of column 12 has been completed clamps 16, 18 and inter-30 mediate member~ 20, 22 ~re d~ ~a~embled and removed from column 31 12 in the manner which will now be evident to tho~e havlng or~l-32 nary skill in 'che art, inform~d by the pre~ent di~closur~.
~ 2 ~ C3 ~
1 It 1~ to be noted, however, thzlt when ~h~ port10n ln-2 serted in~o column 12 extend~ beyorld the periphe~y o~ co~u1nn 1~, 9~ aB $13 thQ ~88 wi~ch ~ mic i3c31A~cor 14 and 1at ~ck 140, l'c 4 m~y be necessary to disa~emble clamp 16 ~nd rem~ve it from ~ collector beam 20 before lowQring it to floor 42. Inde~, lf 6 the in~erted portlon ext~nds conslderably beyond the horizontAl 7 periph~ry of colu~nn 12 1 t may al~o be nece~sary to ~1180 di8~1~B~m-8 ble collector b~am 20 ~n the pt:l8'1 tlon ~hown in ~19. 1 b~ore ~ removing it from column 12.
~hlle the method and apparatu~ of the f irat pr~ferr~d 11 embodi~nent of my invention described immedi~ately hereinabDv~ may 12 be u~ed for the repair or modi~ication o~ virtually any rein-13 forced concrete column, the par~cicular ~ mic ist)lator 14 and 14 flat ~ack 140 which wer~ inserted into columrl 12 ln the actual 15 reductlon to pra¢tice o~ the ~irat pr~err~d Qmbodim~n~ are ~hown 16 1n Flg. 10 for con~pletenes~ of disclosure.
17 A3 ~een $n F1g. 10, seism~c i~ola~or 14 dnd 11~t ~as:k 18 140 were inserted into column 12 ~a integral Unitfi.
19 Sei~mic isolator 14, also known as an "1aolat~on be~r-20 ing~, wa8 de~igned by Dynamic ~ola~-ion Sy~tem~ of Berke~ey, 21 California, and consis~s of a rubber oover, ~teel load plate~, 22 ~nd alt~rn~ting lay~rs o a~el roin~or~lng and rubbor, ~nd w~
23 described in ~h~ publication ~Enginearing New~ Record~ on O~tsb~r ~4 5, 1989, at page ~6.
A~ also seen in Fiq. 10, a device 140 o~ the type kno~n 26 a~ a flat jack wa~ inserted in column 12 above ~eiamic i~olator 27 14.
28 ~he flat jack employed wa~ d ~la~ jack of the type 29 made and sold by ~he Freys~inet Company, Inc., and 1~ a hydraulic 30 cap~ule in the form of a flat double ~auoer, made of two circul~r, 31 soft-grade steel ~tampings welded and heat-treated to produce 32 the required internal pr~ure, strengths and flexibility. The ` ~ff~ f~'~f'i3~
fl~t ~ack u~ a loo~ely ~4 ~ Ql thru~t pla~ n 1, 140-2 2 ln e~ch ~auce~ ~acQ. ~ac~ 140 has ~n lnl~t ~or ln~la~ion oqulp-p~d with an @x~en~on plece whl~h 18 conneoted ~o ~ hydraullc 4 line 1~2, ~nd has ~n outlet ~or the esc~pe o air there~ro~
In accordanoe wlth well known pr~ctice, ~la~ ~ack 140 was inflated undef~ pre~ure u~L~g ~ hard-~e~ting ~poxy grout 7 which hardens ~ith negligable shrlnkage over ~ ~hort, controlled 8 perlfod, whereater flat ~ck 140 and thrust pla~e~ 1~0-1, 140-2 ~ remained, and will re~aln, perm~nently in~talled in column 12.
It is al~o to be no~ed tha~ jack~ 24, 2S, 3~, 34 ar~
11 o the ~ype sometime~ called ~locknut cylinders~ whlch xre dq-12 signed for li~ing applio~tion~ where the loads ~u~t be m~ch~n-13 ically ~ecured at some point. Thus, a~ seen in Fig. 1, e~ch 14 ~ack i~ provided with a locking ring 1~4. Locking ring~ 144 ~r~
15 provided with tool-receiving op~nings deRigned to receiv~ ~he 1~ tool whereby they can be torqued about the axis of the cyllnfd~r ~
17 thu~eff mechanically locklng the ram, ~nd consequently tha load, ln 18 any position of r~m exten~ion.
1~ .
Other ~mbodiments o~ My Inventlon 21 .
2~ While the ~irst preferred embodiment o~ my invention, 23 which ha~ b~n ~ctually ~aduo~d to practlo~, has bc~n ~s~rlb~d 24 in great detail hereinabove, and ~hown ln great det~il in ~ig~.
Z5 1 through 7, it i~ to be unders~ood that my invention i9 in no 26 .~ense limited to that par~i¢ular embodiment, but r~her can be 27 embodied in many other structural ~orms, and i~ applicnble to 28 virtually any type of reinforced concrete column, as incorpor~ted 2~ in many structure~ other than building~, e.g., aqueduct~, stadiD
um~, bridge~, freew~ overpa~e~.
31 Referring now to Fig. 8, there iB ~hown a ~acking rlg 32 150 constructed in accordance with a ~econd preferred embodiment w23-.3 i~
1 of my invention.
2 A~ ~e~n in Flg. 8, a relnorced c~onerete ~olumn 152, ~ whlch i~ inkerior to ~n exi~ting building, extends between a 4 be~m 154 and a plle cap ound~ion 156 v p~ing 'chrough twa ~loor~
5 158, 160 o~ the building.
In ~his 2mbodiment only one clamp 162 and one collector 7 be~m lS4 are employed .
8 Clamp 162 1~ ~tructurally ~imllar to clam~ 16 ~nd 18 9 of the fir~t pre~erre~ em~odlment, but ~3ue 'co the greater load 10 to be borne thereby cla~np 162 i~ c:ompri~ed of more claD~Iping beam~, 11 more rods, longer shoe~, etc., all a~ will be evldent 'co 'choEle 12 having ordinary ~kill in the ar~, in~ormed by the pre~ent di~-13 closure, comparing Fig~. 1 and 8.
14 As also may be ssen by Qomparlson of Flg~. 1 and 8, 15 collector beam 164 iB corre~pondingly proportioned as compared 1~ with collector beam~ 20, 22 of the firs~ preferr~d embodimen'c, 17 ln accordance with th~ grea~cQr load to be borne by ~aoklng rlg 18` 150.
1~ Thu~, as will be under~tood by tho~e havln~ ordin~ry 20 skill $n the art, informed by ~he pre~ent di~clo~ure, ~he number&
21 and ~tr~ngth of part~, etc., of the c~lamp~ and collsctor beAms 22 of various embodimgn~s of my inven'cion will vary in accordance 23 with the load to be borrle therebys 'che determinatiorl of the nuJn-24 bers of parts , ~trengths of part~ ~ etc ., ~or any partloular ln-25 ~tallation being well w$thin the ~3COpQ of those having ordinary 26 3kill in the ~rt, informed by the pre~ent di~clo~ure.
27 Returning to Fig. 8, and notlng the gap in column 152, ~8 it will be understood that a~ ~hown in Fig. 8 clamp 162 ha~ been ~g clamped to the upper portion of column 152 in the manner herein-30 above de~cribed in connection with the installation of ~acking 31 rig 10 of the fir~t pr~ferFed embodiment, 3~ ///
~ 21~3~
1 As ~l~o ~een in Fig. ~, the gap 1~ too 0108e to ~loor :1 158 to permit th~ ins~all~tion of a clamp and coll~ctor beam o ~ the invention below ~he g~p. qrherei~ore~ it becamQ n~c~s~ary ~o 4 pt~38 the load ~rom collec~or beam 164 through floor 158, through 6 floor 160, and ~o ~lnal aupport on the pile ~:ap ~oundation, and ts~ do ~o without ¢~uehin~ floor~ 158~ lC0, t6~rlng 1~lo~r8 158t ~ lS0 ~rom column 152~ or oth~rwi~e in~uring 80me part of the 8 building .
~ It iQ ~0 be under~tood that ~he metho~ of thus pai3~ing 10 ~he load ~rom collecJcor beam 164 through floo~ 158 whlch i8 illu-11 strate~ in Flg. 8 i8 a principal feature of my lnv~ntion.
12 As ~een in ~ig. 3, ln~rme~iata m~mber or coll~cto~
13 beam 164 i8 provided at its four corners with bearin~ pl~te~
14 166, each of which bearing plates 166 bear~ upon the upper end lS of an a~ociated 3hort column member 168.
16 A b~arlng pl~co 170 and coll~lr ï72 i8 af~lxed to tho 17 lower end of ea~h column member 168.
18 Di~po~ed upon floor 158 are Eour load di~tribution 19 pla~es 174 each of which i~ provided wi'ch a plurallty of ou~-~0 standing ear~ which ~erve ~o loc~te thereon a locknu~ ~ype ~aok 21 176 similar to the ~ack~ shown in Fig. 1.
22 ~he ra~ or plBton of each jack 176 i~ receiv~d in the 23 collar 172 of a oorr~sponding column m2mber 168 and bears upon 24 the bearing plate 170 a~fixe~ thereto~ ~o that ~h~ load borne by 25 clamp 162 and colle~tor beam 164, and the weight of clamp 162 26 and of collector beam 164, are diatributed equally between the 27 four di3tributor plate~ 174 when the ram~ of all four ~a¢k~ 176 28 pre~s again~t the lower ~ce8 O~ thelr a~sociAted bearinq pl~t~s 29 170.
As furth~r se~n in Fig. 8, four load distribution plates 31 178 bear again~t the lower ~ce of ~loor 158, each in direct 32 ~uxtapo~ition to one of ths load distribution plate~ 174 which 2~ 13 3 1 bear ~gains~ the upp~r aur~aa~ o ~loor 15B.
Each load di~tributlon plate 178 i~ a~ixed to th~
3 upper ~nd of one o~ four ver~i~al support column ~e~x~ 180.
4 The four ~upport column~ 180 are maintained vertical 5 and in ~h~ same co~igur~ion as upper colu~n m~mbers 160 by a 8 yoke 181 compri~ed of four ~tru~s 18~ ~he proYision o~ which 1~
7 within the ~cope of tho~e having ordin~ry ~kill in the art, in-8 formed by ~he present dl~clo~ure. Yoke 181 1~ gener~lly rectan-~ gular in con~iguration, i3 ~u~iciently large in size to embrace 10 column 15~, and i~ bol~ed ~o ~upport ~he membera 180 ln such 11 manneE that i~ can be æs~emble~ around column 152 as ~h~n in 12 ~i~. 8.
1~ Further, each ~upport oolumn member laO i provided 14 with br~cket 184, whereby it can be bolted to yoke ~truts 182.
1~ Fixed to the lower end o~ each column m~mber 1~0 1~ a 16 bearlng plate 186 ~nd a collar 18~.
17 ~ach collnr 188 1~ ~o dim~n~ioned as to clos~-ittingly 18 recelve tbe ram of an a~sociated loaknut ~ack 190.
19 ~s further seen ln Fl~. 8, bo~h of the foreward~o~t 20 jacks 190 are dlsposed upon bearing plates 192, and each bearing 21 plate 192 i8 provided with a plurality of ear~ 194 adapted to 22 a881~t in locating the corresponding jack 190 on tha~ be~ring 23 plate.
24 Both o~ the ~orwardmo~t bearing plates 192 are ~fl~ed 25 to the upper surface of a b~am 196, as by arc welding.
2~ A~ al~o lndica~ed in Fig. ~, a corre~pondlng be~ 198 2~ i located directly behlnd beam 196. Beam 198 i~ ~ub~tantially 28 identical to b~a~ 196, And i~ p~ovid~d with bearing plate~ and 29 loc~ting ear~ which in ~ig. 8 are locat~d directly behlnd the 30 bearing plate~ and locating ears 192, 194 affixed to the upp~r 31 ~urface of beam 196.
3~ ///
~013~6~
1 A~ will no~ be eYident to those having ordinary ~kill 2 ln the art, lnform~ by th~ pre~en~c d~clo~ur~, the other two ~ il~¢k8 190 , 1 . ~ ., oth~s than th~ two ~orwardmo0t ~acka ~hown 4 d~rec~ly ln Fig. B, are ~isposed upon the two bear1ng plat~s 192 5 whiah are affixed to the upper ~ur~ce oiE beam 198.
0 A~ ~urther ~een in F1g. 8, b~m 1~6 bears upon the 7 upper 8u~face of ~ shim pl~t~ 2~0 the lengl:h o~ whiah doe~ not 8 exc~d th~ diameteS~ of plle a~p foundation 156.
~ It 1~ to be unàer~ood th~t beama 196 and 198 ~re botb lO loc6t~sd &108ely adjacent column 152, ~nd on oppo~l~ee ai~ the~r~-11 of, and tha~ a ~him plate 202 1~ dl~po~ed b~twe~n beam 198 and 12 floor 160, even a~ shim plate 200 i~ di~po~2d between beam 196 13 and f loor 160 .
14 As will be ev1dent to tho~ having ordinary ~kill in 15 the art, informed by the present di~clo~ure, beam~ lg6 and l9B
16 and their re~pectively a88clc~ a~ced shim plate~ 20~ and 202 s~rve 17 to ransmit the load impo~d by jack1ng rig 150 to the portions 18 of floor 160 directly underlain by the top of pile cap Pound~tion 19 156, thus distributing the load over a sub~'cantial directly ~up-20 ported area of floor 160 and avoiding injury to floor 160.
21 A~ further ~en in Fig, ~, ~he hydraulic fluid input 22 Couplings of all eigh~ ~aoks 176, 190, ~re ¢oupled to a common 23 hydraulic llne harnes~ 206 which i~ it~elf coupled to a slngle 24 hydraulic lin~ 20~, and thu~ to ~ ~our~e of hydraullc fluid un~er 25 pressure of well known type ~not shown). Thus, in accordanc~
2~ with well known hydraulic pr1nciples, the force~ exerted by the~e 27 jack~ will be 80 balanced that no vertical displacement forces 2~ will be applied to floor 158, ~nd thu~ floor 158 will not be 2~ torn from column 152 or otherwise in~ured in it~ connection~
30 wi~h o~her parts o~ the building by reason o applied vertic~l 31 force~.
2~3~ 3 1 Reerring now éo Fig. 9, 'ch0re 1~ ~hown the ~lamp por-2 tion of a ~acking rlg 210 con~truc'ced ln accordance wlth A ~hird 3 pre~erred embodlment o~ n~y invention, a~ ~pplied ~o ~ r~lnforcet!3 4 concrete aolumn 212 ~ olrcular croa~ ~ection, e.g., ~ brldg~
6 column .
AB ~een 1" Fig. 9, clamp 214 18 comprl~ed of a plural-7 i~cy of clamping beam~ 216 whlch are ~imilar in con~ruction o 8 clamping beam~ 44 of the fir~ preferred embodim~nt (Flg. 1), 9 but di~r ~ n dimension in accordance with the required ~lamping lO for~e~, which dlm~n~on~l chang~s are well with~n ~he ~cope of 11 thoc2 having ordlnary ~kill in the ~rt, inform~?d by the p~ent 12 di~closu~e~
13 ~ur~h~r, clamp 214 i~ comprised of a plurali~y of ~ods 14 218 similar to rods ~6 of the ~ir~t preferred embodiment of my lS invention ~Fig. 1) ~ and provided with threaded por ions, nuts, 16 and wa~her~ in the ~ame manner.
17 A~ al~o ~e~n in P~i510 9~ c:la;np 214 i~ compri~ed of 1~ plurality oP shoe~ 220, and a corresponding plural~:~y of shoe 19 facing~ 222.
Each shoe 220 i8 compri3ed of a pair of leg~ 224, 226 21 and a cylindrically curved shoe plate 228.
~2 ~9 224 is ~omp~ d o ~ix horizontal E~lat~ member~
23 224-1, a vertical pl~te member 224-2, and a mounting plate membar 24 224-3. Plates 224-1, 224-2, and 224-3 are af~ixed to e~ch other 25 and to the outer face of shoe plate 22~ by arc weldlng or the 26 like. Leg 226 i~ ~ub~ta~tially a mirror image of leg 22~l and 27 i~ comprised of m~rror-symmetrically ~imilar parts 226-1, 226-2, 28 22fi-3, which are joined to e~ch other and to shoe plat~ 228 in 2~ the manner shown in F$g. 9-by arc welding or the llke.
Each shoe 220 1~ af f ixed to a corre~ponding beam 216 31 by mea~s of ~uitable fa~tener~ 230 which pa88 through mounting 32 plate 226-3, and one flang~ of beam 216.
~n-2 ~J cJ .J i3 ~J ~
1 In ~h~ ~chlrd preferr~d embodiment o~ rny lnv~ntlon, ~ which 1~ adapte~ or u~e in connQc~ion with circul~r rein~orced 3 cowr~t~ colu~nn~, cla~p 210 includ~s twelve clamplng b~m~ 216, 4 dlaposed ~bout column 21~ in ~olJr ver~lc~l arrays o~ 'chre~ clAmp-lng b~ams each. ~rhu~ a~ wlll be evident to ~:ho~ having ordln~ry ~kill in the ~rt, infor~ed by ~che pre~en~c disclosure, ~ h ~hoe 7 220 will be aflxed to three vertically di~pose~ mplng bQa~a 8 216, by ~fa~tener~ 230, and wlll ~nclude a lefthand leg 22~ and A
~ rlghtband leg 226.
It ~ollow~, then, th~t ~lamp 214 will al~o lnclude 11 twelve rods 218, aerang~d in four vertical Array~ in ~ub~t~ntially 12 the same manner as the rod~ 46 of clamp lfi shown in Fig. 1. A3 13 illu~tr~ted in Fig,. 9, ro~ 218 pa~s through as~oclated hole~ ln 14 the vertical pla~ 4-2, 226-2 o~ ~hoe leg~ 224, 226.
lB As will ~ur~h~r b~ ~vlden~c to tho~e havlng ordlnary 1~ sklll ln th~ ar~, inform2d by the pr~serlt ~ losur~, ~aokln~
17 rig ~lû further ~omprlse~ an intermedl~te member or collector 18 beam similar ~o intermediate member or coll~ctor beam ~0 of Flg.
19 1. Further, shoe~ 220 Are af~ixed to thl~ coll~ctor beam by ~0 suitable fasten~rs in th~ 0am~ way in whioh ~ho~s 52 of th~ ~lr~
21 preferred embodiment are aPfixed to collector beam 20 by ~uitable 22 fastener~.
23 ~8 in the fir3t preferred embodim~nt, thi~ collector 24 beam i8 provided with suit~ble bearing pla~es and aollarB ~o 25 re~eive the upp~r ends of ~aoking postn.
26 A~ will now be evldent to tho~e having ordinary ~kill 27 in the art, informed by the pre~ent disclo~ure, a ~acklng rig 28 embodying my invention for use in connection with repairs or 29 modifications of reinforced concrete columna of circular cro~s-30 section may employ on~ or two clamps 214, associated with sult-31 able jacks, ~acking po8t8, etc., in the manner indicated in Flg.
32 I or Fig. B.
-2~-~.a3~,i3l ~ I~ wlll thus be seQn thaé the ob~ct~ Be~ forth ~sbov~, 3 among thoae mad~ app~rant ~rc~m the prece~ing desarlption, are 3 efficien~ly ~ttalned~ and since certain chang~ may be made ln 4 the above con~uc~10ns and the method carried out ~hsreby without ~ departing rom the scope of my inventlorl~ lt i~ in~ended th~t ti all ma~cter contalned $n ~he ~bove descriptlon or shown ln the aceompanying drawings ~h~ll be lnterE~reted a~ ~ llu~tr~tlv~ only, 8 and not ~ n a liLmiting sense ~ It is al~o to be understood that the following cla im~
10 are lntended to cover all of ~he gener ic and speci f lc Peatllre~
~1 c~f the invention hereincle~cribed, and all ~tatem~nts of th~ scop~
12 of my invention which, a3 a matte~ o~ language, might be sa~d 1 o 13 ~ ~ fall erebetween.
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Claims (22)
1. A jacking rig for jacking a reinforced concrete column and the load carried thereby during the repair or replacement of a portion of the column, comprising:
clamping means adapted to be assembled around and clamped to said column;
a plurality of jacks;
jack support means for supporting said jacks; and intermediate means for transmitting said load and the weight of said clamping means and the part of said column located above said portion thereof from said clamping means to said jacks.
clamping means adapted to be assembled around and clamped to said column;
a plurality of jacks;
jack support means for supporting said jacks; and intermediate means for transmitting said load and the weight of said clamping means and the part of said column located above said portion thereof from said clamping means to said jacks.
2. A jacking rig as claimed in claim 1 in which said jack support means includes second clamping means adapted to be assembled around and clamped to said column.
3. A jacking rig as claimed in claim 1 in which said clamping means includes facings of non-adhesive material which directly confront said column.
4. A jacking rig as claimed in claim 3 in which said facings are composed of oak planking.
5. A jacking rig as claimed in claim 3 in which said facings extend substantially completely around said column.
6. A jacking rig as claimed in claim 5 in which said facings are composed of oak planking.
7. A jacking rig as claimed in claim 1 in which said clamping means is comprised of two pairs of opposed jaws, first and second pluralities of threaded rods extending between the jaws of said pairs, and nuts engaged with the threads of said rods for maintaining said jaws in clamping engagement with said column.
8. A jacking rig as claimed in claim 7 in which said jaws are provided with facings of non-adhesive material which directly confront said column.
9. A jacking rig as claimed in claim 8 in which said facings are composed of oak planking.
10. A jacking rig as claimed in claim 8 in which said facings extend substantially completely around said column.
11. A jacking rig as claimed in claim 9 in which said facings extend substantially completely around said column.
12. An attachment for attaching to a reinforced concrete column to provide a bearing surface for a plurality of jacks, comprising:
a plurality of pairs of opposed jaws;
corresponding pluralities of threaded rods extending between the jaws of said pairs; and nuts engaged with the threads of said rods for maintaining said jaws in clamping engagement with said column.
a plurality of pairs of opposed jaws;
corresponding pluralities of threaded rods extending between the jaws of said pairs; and nuts engaged with the threads of said rods for maintaining said jaws in clamping engagement with said column.
13. An attachment as claimed in claim 12 in which said jaws are provided with facings of non-adhesive material which directly confront said column.
14. An attachment as claimed in claim 13 in which said facings are composed of oak planking.
15. An attachment as claimed in claim 13 in which said facings extend substantially completely around said column.
16. An attachment as claimed in claim 15 in which said facings are composed of oak planking.
17. The method of jacking a reinforced concrete column and the load borne thereby during the repair or replacement of a portion of the column, comprising the steps of:
assembling a clamping device around said columns clamping the clamping device to the column above said portion thereof;
interposing a plurality of jacks between said clamping device and a support and raising the pistons of said jacks to support said load, said clamping device, and the part of said column above said portion without substantially raising said part of said column.
assembling a clamping device around said columns clamping the clamping device to the column above said portion thereof;
interposing a plurality of jacks between said clamping device and a support and raising the pistons of said jacks to support said load, said clamping device, and the part of said column above said portion without substantially raising said part of said column.
18. The method of jacking claimed in claim 17 in which said support is a clamping device clamped to said column below said portion.
19. The method of jacking claimed in claim 17 in which said clamping device is assembled around said column on a floor below said portion of said column and then raised to a position above said portion before being clamped to said column.
20. The method of jacking as claimed in claim 19 in which said support is a clamping device clamped to said column below said portion.
21. The method of jacking as claimed in claim 17, further comprising the step of interposing jacking posts between the pistons of said jacks and said clamping device before raising he pistons of said jack.
22. The method of jacking claimed in claim 21 in which said support is a clamping device clamped to said column below said portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63023590A | 1990-12-19 | 1990-12-19 | |
| US07/630,235 | 1990-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2036661A1 true CA2036661A1 (en) | 1992-06-20 |
Family
ID=24526352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002036661A Abandoned CA2036661A1 (en) | 1990-12-19 | 1991-02-19 | Methods and apparatus for jacking reinforced concrete columns |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH04231550A (en) |
| CA (1) | CA2036661A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869518A (en) * | 2017-03-21 | 2017-06-20 | 中国建筑标准设计研究院有限公司 | The construction method of shock isolating pedestal jacking apparatus and replacing shock isolating pedestal |
| CN112963013A (en) * | 2021-02-20 | 2021-06-15 | 龙菊蓉 | Concrete column replacement device and method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2916674B2 (en) * | 1995-10-06 | 1999-07-05 | 株式会社総研設計 | Seismic isolation repair method for existing buildings |
| KR100617395B1 (en) * | 2006-01-17 | 2006-09-01 | 정언섭 | Building repairing system through column raising |
| JP5647448B2 (en) * | 2010-07-08 | 2014-12-24 | 株式会社竹中工務店 | Column repair method for multi-story building |
| JP5718018B2 (en) * | 2010-10-28 | 2015-05-13 | Ｊｆｅシビル株式会社 | Building demolition method |
| JP6208090B2 (en) * | 2014-08-07 | 2017-10-04 | 株式会社奥村組 | Temporary support structure for seismic isolation work and seismic isolation method for existing buildings |
| JP7110019B2 (en) * | 2018-07-23 | 2022-08-01 | 佐藤工業株式会社 | How to jack up the superstructure |
-
1991
- 1991-02-19 CA CA002036661A patent/CA2036661A1/en not_active Abandoned
- 1991-05-02 JP JP10098891A patent/JPH04231550A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869518A (en) * | 2017-03-21 | 2017-06-20 | 中国建筑标准设计研究院有限公司 | The construction method of shock isolating pedestal jacking apparatus and replacing shock isolating pedestal |
| CN106869518B (en) * | 2017-03-21 | 2019-06-14 | 中国建筑标准设计研究院有限公司 | Shock isolating pedestal jacking apparatus and the construction method for replacing shock isolating pedestal |
| CN112963013A (en) * | 2021-02-20 | 2021-06-15 | 龙菊蓉 | Concrete column replacement device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04231550A (en) | 1992-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 19940820 |