10435 Downsville Pike Hagerstown MD 21740 301-766-2800

10435 Downsville Pike Hagerstown MD 21740

301-766-2800

www.wcps.k12.md.us

May 22, 2015

Addendum #1

TO: All Prospective Offerors FROM: Lisa Freeman, C.P.M., Supervisor of Purchasing REF: Bid #2015-57, Claud E. Kitchens Outdoor School at Fairview Fire Tower Restoration PROPOSAL DUE DATE: Thursday, May 28, 2015 @ 2:00 p.m. local time Please note the following changes/clarifications to Bid #2015-57:

1. Question/Response from QLS 2. Question/Response from WCPS 3. Detail of expanded metal safety grating for stair treads & landings for Alt. #1 4. Pre-Bid sign in sheet 5. Updated set of drawings

Design and Construction, LLC

1673 WIND FLOWER RD.

CHAMBERSBURG, PA 17202

p:717-496-9338

f:717-496-9339

[email protected]

REV

NO.

DESCRIPTION

Project:

WASHINGTON COUNTY PUBLIC SCHOOLS

CLAUD E. KITCHENS OUTDOOR SCHOOL AT FAIRVIEW

FIRE TOWER RESTORATION

BID #: 2015-57

CLEAR SPRING, MD

QLS JOB NO.

SHEET NO.

C-1

Title:

REVISION

Date By

DATE:

Checked:

DRAWN:

-

10/27/14BWS

10/13/14DCM

COVER SHEET


CLAUD E. KITCHENS - OUTDOOR SCHOOL AT

FAIRVIEW

BID#: 2015-57


12808 Draper Road

Clear Spring, MD 21722

PROJECT LOCATION

0 PRELIMINARY 10/30/14 QLS

1 BID DOCUMENTS 04/30/15 QLS

DRAWING INDEX:

C-1 - COVER SHEET

GN-1 - GENERAL NOTES/SPECIAL INSPECTIONS

1 - FIRE TOWER ISOMETRICS - ELEVATIONS

2 - FIRE TOWER DETAILS - STAIR TREADS, LANDINGS, AND GROUNDING

PROFESSIONAL CERTIFICATION: I HERBY

CERTIFY THAT THESE DOCUMENTS WERE

PREPARED OR APPROVED BY ME, AND

THAT I AM A DULY LICENSED

PROFESSIONAL ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

LICENSE NO. 36390, EXPIRATION DATE:

11-09-16

2 ADDENDUM #1 05/20/15 QLS




p:717-496-9338

f:717-496-9339

[email protected]

REV

NO.

DESCRIPTION

Project:




BID #: 2015-57

CLEAR SPRING, MD

QLS JOB NO.

SHEET NO.

GN-1

Title:

REVISION

Date By

DATE:

Checked:

DRAWN:

-

10/27/14BWS

10/13/14DCM

GENERAL NOTES / SPECIAL INSPECTIONS

GENERAL NOTES:

1) WORK SHALL CONFORM TO THE REQUIREMENTS OF THE 2012 INTERNATIONAL BUILDING CODE.

2) ALL CONTRACTORS ARE REQUIRED TO EXAMINE THE DRAWINGS AND SPECIFICATIONS CAREFULLY, VISIT THE SITE

AND FULLY INFORM THEMSELVES AS TO ALL EXISTING CONDITION LIMITATIONS, PRIOR TO AGREEING TO PERFORM

THE WORK. FAILURE TO VISIT THE SITE AND FAMILIARIZE THEMSELVES WITH THE EXISTING CONDITIONS AND

LIMITATION WILL IN NO WAY RELIEVE THE CONTRACTOR FROM FURNISHING ANY MATERIAL OR PERFORMING ANY

WORK IN ACCORDANCE WITH DRAWING AND SPECIFICATIONS WITHOUT ADDITIONAL COST TO THE OWNER.

3) ALL DIMENSIONS, ELEVATIONS, AND DESCRIPTIONS OF EXISTING CONDITIONS HAVE BEEN

ESTABLISHED FROM AVAILABLE DRAWINGS AND OTHER DATA AND SHALL NOT BE CONSTRUED AS FACT. THE

CONTRACTOR SHALL VERIFY EXISTING CONDITIONS BEFORE PROCEEDING.

GRAVITY LOADING:

A. DEAD LOAD:

B.

MEMBERS..................................... ACTUAL

C. LIVE LOAD:

FIRE TOWER.......................... 100 PSF

D. SNOW LOAD:

GROUND SNOW, Pg .................... 30 PSF

IMPORTANCE FACTOR, I ............. 1.0

SNOW EXPOSURE FACTOR, Ce.... 1.0

ROOF THERMAL FACTOR, Ct....... 1.2

FLAT SNOW LOAD, Pf ................ 25.2 PSF

1. LATERAL LOADING:

A. WIND LOADING:

BASIC WIND SPEED, V ............... 90 MPH

WIND IMPORTANCE FACTOR, I..... 1.0

EXPOSURE CATEGORY ............... B

TOPOGRAPHIC FACTOR, Ktz....... 1.0

ROOF ANGLE ............................. 0 - 5 DEGREES

B. SEISMIC LOADING:

SEISMIC USE GROUP ................ 1

SITE CLASS ............................... C

IMPORTANCE FACTOR ................ 1.0

SPECTRAL RESPONSE COEFFICIENTS

Ss ............................ 0.129

S1 ............................ 0.052

Fa ............................ 1.600

Fv ............................ 2.400

Sds .......................... 0.103

Sd1 .......................... 0.059

SEISMIC DESIGN CATEGORY ...... A

SEISMIC FORCE RESISTING SYSTEM STEEL ORDINARY CONCENTRICALLY BRACED FRAME (TOWER)

RESPONSE MODIFICATION FACTOR 3.25

OVERSTRENGTH FACTOR 2.5

DEFLECTION AMPLIFICATION FACTOR 3.25

DESIGN BASE SHEAR ................ 2.0 KIPS (1% OF BUILDING WEIGHT)

SEISMIC RESPONSE COEF ......... N/A

ANALYSIS PROCEDURE .............. EQUIVALENT LATERAL FORCE PROCEDURE

STRUCTURAL STEEL

1) ALL STRUCTURAL STEEL SHALL BE DESIGNED IN ACCORDANCE WITH 'SPECIFICATIONS FOR THE

DESIGN, FABRICATION, AND ERECTION OF STRUCTURAL STEEL BUILDINGS' (AISC).

2) MATERIALS:

STRUCTURAL ANGLE ...........................................ASTM A36

BOLTS ..................................................................... ASTM A325

3) ALL STEEL EXPOSED TO WEATHER SHALL BE HOT DIPPED GALVANIZED.

4) ALL STEEL MEMBERS TO BE REPLACED SHALL BE MEASURED IN THE FIELD FOR EXACT LENGTH AND HOLE

LOCATION. END FOLDS TO ALLOW FOR GALVANIZING TO PENETRATE INTO THE FOLD.

WOOD TREADS AND LANDINGS:

1) WOOD MEMBERS SHALL CONFORM TO APA STANDARD SPECIFICATIONS.

2) ALL WOOD MEMBERS TO BE TREATED SOUTHER YELLOW PINE.

3) ALL WOOD MEMBERS TO BE REPLACED SHALL BE MEASURED IN THE FIELD FOR EXACT LENGTH AND HOLE

LOCATION. HOLES TO MATCH EXISTING SUPPORT STRUCTURE.

4) BOLTS USED FOR CONNECTING WOOD MEMBERS TO STEEL SUPPORTS SHALL MEET ASTM A307. HEX NUTS SHALL

MEET ASTM A563, GR.A. LOCK WASHERS TO MEET ASTM F436. ALL CONNECTING HARDWARE SHALL BE

GALVANIZED

VERIFICATION AND INSPECTION CONTINUOUS PERIODIC IBC REFERENCE

REFERENCED

STANDARD

A. IDENTIFICATION MARKINGS TO

CONFORM TO ASTM STANDARDS

SPECIFIED IN THE APPROVED

CONSTRUCTION DOCUMENTS

B. MANUFACTURER'S CERTIFICATE OF

COMPLIANCE REQUIRED.

AISC 360,

SECTION A3.3

AND APPLICABLE

ASTM MATERIAL

STANDARDS

TABLE 1704.3

REQUIRED VERIFICATION AND INSPECTION OF STEEL CONSTRUCTION

A. SNUG-TIGHT JOINTS.

B. PRETENSIONED AND SLIP-CRITICAL JOINTS USING

TURN-OF-NUT WITH MATCHMARKING, TWIST-OFF

BOLT OR DIRECT TENSION INDICATOR METHODS OF

INSTALLATION

AISC 360,

SECTION M2.5

1704.3.3

C. PRETENSIONED AND SLIP-CRITICAL JOINTS USING

TURN-OF NUT WITHOUT MATCH MARKING OR

CALIBRATED WRENCH METHODS OF INSTALLATION.

3. MATERIAL VERIFICATION OF STRUCTURAL STEEL AND COLD-FORMED STEEL DECK:

1. MATERIAL VERIFICATION OF HIGH-STRENGTH

BOLTS, NUTS AND WASHERS:

A. FOR STRUCTURAL STEEL, IDENTIFICATION

MARKINGS CONFORM TO AISC 360

- X

AISC 360. SECTION

M5.5

B. FOR OTHER STEEL, IDENTIFICATION

MARKINGS TO CONFORM TO ASTM

STANDARDS SPECIFIED IN THE APPROVED

CONSTRUCTION DOCUMENTS.

- X

APPLICABLE ASTM

MATERIAL

STANDARDS

C. MANUFACTURER'S CERTIFIED TEST REPORTS. - X

4. MATERIAL VERIFICATION OF WELD FILLER MATERIALS:

A. IDENTIFICATION MARKINGS TO CONFORM

TO AWS SPECIFICATION IN THE APPROVED

CONSTRUCTION DOCUMENTS.

- X

AISC 360. SECTION

A3.5 AND

APPLICABLE AWS

A5 DOCUMENTS

B. MANUFACTURER'S CERTIFICATE OF

COMPLIANCE REQUIRED.

- X - -

5. INSPECTION OF WELDING:

A. STRUCTURAL STEEL AND COLD-FORMED STEEL DECK:

X -

2. MULTIPASS FILLET WELDS. X -

1. COMPLETE AND PARTIAL JOINT

PENETRATIONS GROOVE WELDS.

3. SINGLE-PASS FILLET WELDS >

5

16

" X -

4. PLUG AND SLOT WELDS. X -

5. SINGLE-PASS FILLET WELDS <

5

6

"X -

6. FLOOR AND ROOF DECK WELDS - X AWS D1.3

AWS D1.1 1704.3.1

B. REINFORCING STEEL:

- X

1. VERIFICATION OF WELDABILITY OF

REINFORCING STEEL OTHER THAN ASTM A

706

X -

2. REINFORCING STEEL RESISTING

FLEXURAL AND AXIAL FORCES IN

INTERMEDIATE AND SPECIAL MOMENT

FRAMES, AND BOUNDARY ELEMENTS OF

SPECIAL STRUCTURAL WALLS OF

CONCRETE AND SHEAR REINFORCING.

3. SHEAR REINFORCEMENT X -

4. OTHER REINFORCING - X

AWS D1.4 ACI 318:

SECTION 3.5.2

6. INSPECTION OF STEEL FRAME JOINT DETAILS FOR COMPLIANCE:

A. DETAILS SUCH AS BRACING AND STIFFENING. - X

B. MEMBER LOCATIONS. - X

C. APPLICATION OF JOINT DETAILS AT EACH

CONNECTION.

- X

- 1704.3.2


2. INSPECTION OF HIGH-STRENGTH BOLTING:









11-09-16


5/20/2015 2:56 P

M, 24x36




p:717-496-9338

f:717-496-9339

[email protected]

REV

NO.

DESCRIPTION

Project:




BID#: 2015-57

CLEAR SPRING, MD

QLS JOB NO.

SHEET NO.

1

Title:

REVISION

Date By

DATE:

Checked:

DRAWN:

-

10/27/14BWS

10/13/14DCM

FIRE TOWER ISOMETRICS - ELEVATIONS


(W-5630) ∠2x2x

1

8

"(W-5630) ∠2x2x

1

8

" (W-5630) ∠2x2x

1

8

"(W-5630) ∠2x2x

1

8

"

(W-5150) ∠2x2x

1

8

" (W-5150) ∠2x2x

1

8

" (W-5150) ∠2x2x

1

8

"(W-5150) ∠2x2x

1

8

"

(W-207) ∠2x2x

3

16

" (W-207) ∠2x2x

3

16

" (W-207) ∠2x2x

3

16

" (W-207) ∠2x2x

3

16

"

(W-208) ∠2x2x

3

16

"

(W-208) ∠2x2x

3

16

"

(W-209) ∠2x2x

3

16

"

(W-209) ∠2x2x

3

16

"

(W-208) ∠2x2x

3

16

"

(W-208) ∠2x2x

3

16

"

(W-209) ∠2x2x

3

16

"

(W-209) ∠2x2x

3

16

"

(W-5274) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5274) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5274) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5274) ∠1

3

4

"x1

3

4

"x

1

8

"

(W-5273) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5273) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5273) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5273) ∠1

3

4

"x1

3

4

"x

1

8

"

(W-5272) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5272) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5272) ∠1

3

4

"x1

3

4

"x

1

8

" (W-5272) ∠1

3

4

"x1

3

4

"x

1

8

"

NOTES:

1. LABELED ANGLES ARE TO BE REPLACED WITH A36 GALVANIZED STEEL ANGLES. CONTRACTOR TO FIELD VERIFY DIMENSIONS.

2. EXTERIOR TOWER HARDWARE TO BE REPLACED WITH

5

8

"Øx 2" A325 BOLTS W/ LOCK WASHER AND NUT.

3. EACH LANDING BOARD HAS (3)

3

8

"Ø CARRIAGE BOLTS.

4. STAIR TREAD BOLTS TO BE REPLACED WITH

3

8

"Ø A307 CARRIAGE BOLTS WITH NUT.

5. WOOD LANDINGS HAVE A 2x10 @ MIDSPAN IN TRANSVERSE DIRECTION FOR ADDITIONAL RIGIDITY.

6. ALTERNATE #1: REPLACING WOOD TREADS AND LANDINGS WITH EXPANDED METAL (GALVANIZED).

7. ALTERNATE #2: CLEANING, PREPPING, AND PAINTING ENTIRE STRUCTURE.

STAIR 1

LANDING 1

STAIR 2

LANDING 2

STAIR 3

STAIR 4

STAIR 5

STAIR 6

STAIR 7

STAIR 8

STAIR 9

STAIR 10

STAIR 11

STAIR 12

STAIR 13

STAIR 14

STAIR 15

LANDING 3

LANDING 4

LANDING 5

LANDING 6

LANDING 7

LANDING 8

LANDING 9

LANDING 10

LANDING 11

LANDING 12

LANDING 13

LANDING 14

LANDING 15

IMPORTANT:

SHUT OFF BIRD REPELLANT SYSTEM PRIOR TO STARTING WORK AND

TURN IT BACK ON PRIOR TO LEAVING SITE EACH DAY.

(W-2000) ∠2x2x

3

16

"

(W-2000) ∠2x2x

3

16

"

(W-2000) ∠2x2x

3

16

"

(W-2000) ∠2x2x

3

16

"









11-09-16

NOTE: W-207 CONNECTS TO W-208 OR W-209 TO CREATE A COMPLETE DIAGONAL MEMBER


5/20/2015 2:55 P

M, 24x36




p:717-496-9338

f:717-496-9339

[email protected]

REV

NO.

DESCRIPTION

Project:




BID#: 2015-57

CLEAR SPRING, MD

QLS JOB NO.

SHEET NO.

2

Title:

REVISION

Date By

DATE:

Checked:

DRAWN:

-

10/27/14BWS

10/13/14DCM

FIRE TOWER LAYOUT


STRINGER

2"x10"x2'-0"± STAIR TREAD (TYP.)

EXISTING STAIR TREAD SUPPORT ANGLE

TO REMAIN

3

8

"Ø x 2

1

2

" LONG CARRIAGE BOLT (TYP. (4) PER STAIR TREAD)

3

8

" HEX NUT

AND LOCK WASHER

1"±

6"±

MECHANICAL BOND

CONDUCTOR TO STRUCTURE

MEETING UL 467 (TYP @ 4

LOCATIONS)

#2 STRANDED COPPER

WIRE CONDUCTOR

MEETING UL 467

MECHANICAL BOND

CONDUCTOR TO STRUCTURE

MEETING UL 467 (TYP @ 4

LOCATIONS)

1

2

"Ø COPPER ELECTRODE

MEETING UL 467

(LOCATE WITHIN 8 FT. OF TOWER LEG)

8' MIN.

NOTE:

INSPECT TOWER FOR EVIDENCE OF

EXISTING GROUNDING RODS.

INSTALL GROUND ELECTRODES AT ALL

TOWER LEGS.

BONDING SHALL TAKE PLACE W/ CLAMPS

SUITABLE FOR DIRECT BURIAL.

CLEAN PAINT & DEBRIS FOR METAL TO

METAL CONTACT AT BOND

DRIVE ELECTRODES INTO GROUND

IF CONDITIONS PRECLUDE THE DRIVING OF

COPPER ELECTRODES, LOOP CONDUCTORS

OR COPPER GROUND PLATES MAY BE

SUBSTITUTED, ONE FOR ONE, AND BE LAID IN

TRENCHES.

ALL MECHANICAL BOND CONNECTORS,

WIRES, AND GROUNDING RODS TO MEET UL

467

NOTE:

ALL DIMENSIONS SHOULD BE

FIELD VERIFIED BY CONTRACTOR


BASE BID - WOOD PLANKS

ALTERNATE #1 - EXPANDED METAL TREADS AND

LANDINGS (GALVANIZED)








11-09-16


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