HomeMy WebLinkAboutR02-Public Works
, CI"O OF SAN BERNARDICO
File No. 6.251-2 ..5L~
- REQUIQT FOR COUNCIL ACOON
Q:
Roger G. Hardgrave
Public Works/Engineering
Subject:
Approval of Change Order No. Two ---
Construction of Structural Steel,
for new Central library, per Plan
No. 6456 -- Buckner-Wilson Fabricators
'From:
Date:
4-26-85
Synopsis of Previous Council action:
1-09-84 Plans approved and authorization granted to advertise for bids.
2-20-84 Resolution No. B4-64 adopted awarding a contract for $448,000 to
Buckner-Wilson Fabricators, for construction of Structural Steel
for the new Central library in Pioneer Park.
5-13-85 -- Change Order No. One proposed will authorize payment for various
items of extra work at an increase in contract price of $5,655.41,
from $448,000 to $453,655.41.
R8Commended motion:
c
That Change Order No. Two to the contract with Buckner-
Wilson Fabricators, for construction of structural steel
for the New Central library, in accordance with Plan No.
6456, be approved, to authorize payment for various items
of work at a net increase in the contract price of $12,524.B8,
from $453,655.41 to $466,180.29.
cc:
John Matzer, Jr., City Administrator
~fr'~
Signature
Contact person: Roger G. Hardgrave
Supporting data attached: Staff Report & CCO # Two
Phone:
5025
Ward:
1
FUNDING REQUIREMENTS:
Amount: $12,524.88
Sou~: Bonds sold by RDA and
Grant through State librarian
Finance:
Cncil Notes:
75-0262
~,.~ s:.4Y.fS-
Agenda Item No.7~~? -
. CIO OF SAN BERNARDIOo - REQUB)r FOR COUNCIL ACQ)N
STAFF REPORT
o
Change Order No. Two will authorize the addition of various items
of work at a net increase in contract price of $12,524.88.
Attached is a copy of the memorandum from Don Rogers, Construction
Manager, dated 4-1-85, stating the reasons for these changes.
Mr. Don Rogers recommends this change order be approved. We concur
with his recommendation.
The Budget vs. Bid Analysis, dated 12-5-84, contained an amount of
$9,572 for the estimated cost of future change orders. Approval of Change
Order No. Two will increase the contract price by $2,952.88 in excess of
the estimated cost in the financial report prepared in December, 1984.
o
Q
75.0264
o
c
C>
.0..
. .
o
o
o
J.D. DIFFPNIWIB, DC.
. <Il'c>mu.;II(]f MANllGmlS
2375 Chicago Avenue, Riverside, CBlifornia 92507
(714) 684-2820
BIIWDJI
DA1E: 4/01/85
Roger Hardgrave
City of San Bernardi~o
Don Rogers
San Bernardino central Library
BP'2, Structural Steel
Change Order '2
Attached are signed copies of subject change order for BP'2, Buckner-Wilson
Fabricators, Inc.
'10:
PKlIt:
SVB.JK:l':
The reasons and explanations of the changes are as follows:
_ 5 is to add seven (7) each, WF 8X15 drop-fu beams air handler supports and
. two (2) each pipe columns to support roof parapets. There are forty-four (44)
each air handler units and seven (7) of. those did not have structural support.
The above was not shown on the bid drawings, 'but required for structural
stability. Attached is a copy of Buckner-Wilson's quote dated September 27, 1984.
RPQJ 8 is to add channels on bottan of beams for stud supports shown on revised
drawing dated Apri I 30, 1984. The channels were added on the drawings revised
April 30, 1984, but Buckner-Wilson did not include them in their cost (RPQil,
~O.'I). The channels are required to provide support for metal stud walls and
other miscellaneous iron. Attached is Buckner-Wilson's quote of November 5, 1984.
RPQJ 7 is to remove alternate beams at skylight. This is to coordinate the steel
~th the revised skylight configuration. Attached is Buckner-Wilson's quote of
NOvember 5, 1984.
RPQJ 8 is to relocate window channels. . This occurred along the east elevations.
. The'dfmensions on--the drawings were incorrect. The edge of slab was corrected
prior to the concrete being placed. After the steel was erected, it was
discovered that the window wall support channels had to be relocated so that the
outside edge of the channel would vertically align with the edge of the slab.
. . Attached is Buckner..,Wilson's quote of December 6, 1984.
RPQJ 9 is to fix beams in field between column lines C to D and 8 to 9. The beams
were installed as per the dimensions on the drawings. After installation, it was
found that the flanges of the beam protruded into and conflicted with the block
wall at the south side of the building. Attached is Buckner-Wilson's quote of
NOvember 6, 1984.
0.>
o
o
o
c
BP'2, Structural Steel
Qlange Order '2
-2-
April 1, 1985
c
RPQfl0 is to install two (2) lines of safety cable to all interior openings on the
second floor and roof. This is required by OSHA. In the bid doctm!nts, we
included this for perimeters of the second floor and roof. We failed to specify
it for interior openings. This was required to be added in the following areas:
1. Opening around three exit stairs.
2. Main stair opening in second floor.
3. Gallery skylight opening in second floor and roof.
RPQfll is to revise framing for toilet partition supports. The bid drawings
showed detail 29/S-9 as required with the support channel in the horizontal
position. When the engineer issued the April 30, 1984 revised plans which largely
corrected and/or changed dimensions, they changed the support channel to a
vertical position. The detail was not clouded to indicate a change had occurred,
therefore, no one noticed it. Buckner-Wilson's detailer used the latest drawing
(4/30/84) and the supports were installed this way. This change is to revise the
support channel to the original horizontal position. Attached are copies of
details 29 fran sheet S-9 and Buckner-Wilson's quote of Novenber 6, 1984.
RllQI12 is to add 3" channel around openings where needed at skylight. This is for
the skylight over the gallery. The dimensions given by the engineer were used by
Buckner-Wilson. These dimensions would not work according to the ones on the
architectural drawings. Adding 3" channel material is to correct this.
we have reviewed the itemized costs and have found them to be acceptable and,
therefore, recommend this change order be approved.
Upon approval of this change order, please forward one copy to the contractor, one
to the architect and one to us for our records.
If you need any further backup or infonnation, our files are available for your use.
~CI-'- C(~\t=.
Don Rogers '\
Project Manager
led
cc: Oscar Arnoni
Dan Flanigan
Ledge
File
c
I~
J.D.OFFENBAUCH. .0.
2375 Chicago Avenue
Riverside, California 92507
(714) 825-6323
CONSTRUCTION MANACERS
o
CHANGE ORDER ((,0.)
Contract Changa Order No. TWO 121
Date 2-18-85
San Bernardino Central Library
ContractBPlI2. Structural Steel. Proi .116456
Contractor Buckner-Wilson Fabricators
Except as modified, ell terms and conditions of the contract remain unc....nged. A description of the modification author-
ized by this Change Order to the above project follows:
SEE ATTACHED EXHIBIT nAn
TOTAL
$12.5211.88
o
Fe: t-: C f;:. j " I:. L.I
INCREASE/DECREASE SCHEDULE TIME BY -0- DAYS
FOR THE ABOVE WORK (DEDUCT) 0 (ADD) jg] THE SUM OF $ 12.524.88
FES 261985
1.0 (l'fll",4il(;II,tlil:
Accepted by
Contractor
Recommended
by the Architect
Recommended by
Construction Manager
Approved by
Owner
I? ~""'-'l.'
;4-, ~/JcY1 / -0
AuthcMlzed Slgn.tu,.
-
Do..
The cumulative total of C.O.'s, including this one, is . 4 % over original contract price.
.....
- ....- -
CONTRACT NO. aUOGET UNIT NO. SUB-OBJECT NO. "'HD NO. .108 NO. AMOUNT OF CONTRACT
6456 ----------- ------------ 1------------ --------------- $448,000
C-
AREA INVOLVED:
Structural Steel
'RFI NO.
JOB C.O. NO.
RFQ NO. 5 thru 12
t.:M 108
:'.:/:="0...
':t~-). .'
,
o
c
.- ,.... ,.";.
",. . . .~, ~ .:.",' ',.-."-."- .
c
Ie 0
San Bernardino Central Library
BPU, Structural Steel
Change Order #2
o
o
((
Page I
February IS, 19S5
EXHIBIT -A-
RFQ' 5 is to add seven (7) each, WF 8X 15 drop-in beams
air handler supports and two (2) each pipe columns
to support roof parapets. ADD $I,61q.9q
RFQ' 6 is to add channels on bottom of beams for stud
supports shown on revised drawing dated q/30/Sq. ADD 1,658.58
RFQ, 7 is to remove alternate- beams at skylight. ADD 86.50
RFQ, 8 is to relocate window channels. ADD 2,098.Qq
RFQ, 9 is to fix beams in field between column lines C to
o and 8 to 9. ADD Q5Q.1Q
RFQ"0 is to install two (2) lines of safety cable to all
interior openings on second floor ~nd roof. ADD 2,81Q.8Q
RFQ,l1 is to revise framing for toilet partition supports. ADD 3,192.38
RFQ',2 is to add 3" channel around openings where needed
at skylight. ADD 605.06
TOTAL $12. sn. 88
..... .
'~.,:~ ~~.-~ ";'.-. --'
.. .
..
o.
o
o
3
~:ol ..;
B ..
I~:;!i
l!l"'a
......0
.....
~teilt
113 :~
g u
..il j
!
u.
~ilj
~.Il!:a
~
i
#
...
. u u
u~..
"2.!
~lil...
~a:a
o
- - -------
Cl'H"N.... I N.....ONCDOOC")O
=:::o~~~~~SgSg
';~';';I!I\O c~oo.;
.....",0\.0 N....ONr04....f"1
... .... .... .....
~ ~
...
..............---- -
o
o
....
..
'"
..
u
..
... I
......
_.0....
:3 .:!
.
u
11
';j
.!l
~
u
....
!to...
:;ilOil
~.....
~.:! a
00.00 1 000311"'l0 100\
t")CDOClO 0\00 f'l't..... Il"110
N.-4NG\O.....,...CO ....OOf'l't1O
.. .. .... ............ ....
....\GNt"tICl"lClOON........IC"1....
0'",>1>> \0 0\ \G ,... ,... C) 0: 0 ""
....ION ... C"I....... ION
.
..
...
... ....
~ ~~
OOCf"t I I I I I ao.....OOClO I
..,.... .......0...
N.....OQOQOOO\COCl')."cr'lO
.. .. .. .. .. .. .. ..
II"'lCOO I I I I I NO.....V'l.-t I
,"'111\ N ....tClO
.. ..
~ ~~
...
. . .. .........
OO..,OIOOO..NOO..",
OON" ",...ONNOON'"
o 0... 0\0.....,.... ao....,.,..... at"lC"'t 10
.. .. .... ..................
O'HDNC'l') I,.,COOO\N,.,.,'H"....
CD....C"')\G O\IO.....\ONO\....CO"O
"'\ON .... ""10 "N
.
..
...
..
"""''''10 I 00 i 1I"'l........ 0.... CPl
.......,.. SO N....S.....
NII"'l...."'C) 0 co......... ,..,\0
O.....,;~VOI Q';o~~,;r:,;.;
CD_C"') o\CIO.....II"'lNO 1010
....lOC"I ... ..,....... C"')N
.
..
...
.. '" '"
.-tNI"'I'; "'11\ ",":
<< <<<<<< <<<<<< <<
..............ICDOOO,...Og...'"
...II\N1O 0"010"'0 .....\0
NU""'\100NIOOO'H80 NIO
.. .. .... ..................
Oan.....CDICIO....OCDNOC,...CD
co::~ IO~.....~~CO...~~
.
..
...
~~~ ~
N" ..,
. .
.... ...
...., .
"'N ....
~~ ~
... ...
...
'"
....
.
N
..
...
.
.
...
..
...
u u
..~..
u 0 .
eo tc::a
~1l... 0
_IQollIIE-4
~
.
:;l
i
N
~
...
o
::l
.
...
..
'"
.
.
...
:;l
'"
.
~
..,
.
.
...
~~~ :::
..,.. N
. .
..... ...
g:::: ::l
. .
.., .
... ...
"'-
8
..
8 ..
u 8
.. u
.. .. ..
I . 0 ..
.. .t u ..
l ..'3::... ..=
C If II ...,.. JO.....
.t ~t'~foJ:l il .t;:~ :::1' ~
....8..:::1 E ..... .. 0"
::::u .:!l..= ~u~:::: ....
olt:8ij!illS&l!:i=ii:~.!lol ~8 ~
on,
Ool
...
...... '1 O~Nc.-,"" ..
Oilof,i ..
....NC'I"J.."IO.....CIOo\..................... 0