Wellesley High School Project
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Wellesley High School Project

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http://www.wellesley.k12.ma.us 1674
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    Wellesley High School Project Wellesley High School Project Presentation Transcript

    • Wellesley High School Project Update for Annual Town Meeting April 2010
    • Summer 2009
      • Construction of 3 off site parking lots with porous pavement for WHS staff
        • State Street lot expanded to 31 spaces; 26 for faculty, 5 for Brook path walkers
        • Tennis court lot expanded to 33 spaces
        • Basketball courts turned into 60 tandem spaces with 5 single spaces
    • State Street lot expanded
    • Summer 2009 cont.
      • Construction of 5 new classrooms in old school from lecture hall space to handle increased enrollment
    • Upper part of lecture hall demolished. Steel beams to support new classrooms
    • Corridor to 5 new classrooms
    • New classroom
    • Summer 2009 cont.
      • Construction fence up, scaffolding around edge of school adjacent to construction fence
      • House at 57 Seaver St. moved across site to Rice Street location
      • Air filters installed on air intakes of old school
      • Work to bring utilities on site begins
    • Scaffolding around edge of old school to provide protected corridor
    • September 2009
      • Old parking lot cleared (removal of planters, trees, asphalt)
      • Work continues on sewer and water
      • Official Groundbreaking 9/29/09
    • Groundbreaking
    • October 2009
      • Trailers set up on site
      • Concrete footings work begins
      • Asbestos and lead abatement on 2 remaining Seaver St. houses (#53 & #55)
      • Continued work on sewer and water
    • Trailer complex on edge of Rice Street
    • Site viewed from Rice Street
    • Seaver Street house-lead abatement before demolition
    • November 2009
      • 2 Seaver St. houses demolished
      • Concrete footings continue
    • Concrete Foundation: Formwork is being installed, and reinforcement bars and anchor bolts are being set to pour concrete foundation walls, piers, and footings.
    • Rebar in place as concrete is poured.
    • November 2009 cont.
      • Pile driving begins on 11/9
        • 252 steel H piles vibrated in during school day and hammered to completion after school
        • Depth of 40-60 feet
        • Piles in areas A and B, remainder of building (C and D) has concrete spread footings
    • Area reference plan of new school Rice Street Front offices, gym, locker rooms Auditorium, arts, science wing 2 academic wings cafeteria, classes above
    • Equipment on site for pile driving.
    • H Pile lifted into place
    • Vibrating pile into place
    • December 2009
      • Piles completed with little impact on function of school
      • Concrete footings continue
      • Begin review of thousands of steel drawings with architect and Turner
    • January 2010
      • Foundation completed including all pile caps and spread footings
        • Piles excavated to install pile caps
        • Forms placed with rebar for pile caps and spread footings
        • Concrete poured
        • Cured with heat (as needed due to weather)
        • Waterproofed
        • Insulation installed
        • Backfilled
    • Piles driven to completed depth.
    • Pile Caps: Piles are being excavated in order to form pile caps.
    • Pile Caps: Following excavation, piles are stoned to subgrade before placing forms with rebar and pouring concrete for pile caps.
    • Concrete Foundation: Concrete is poured into forms with rebar in place.
    • Forms in place for concrete pour.
    • Pile Cap
    • In order for the concrete to cure properly in winter months, heating coils with concrete blankets are set on it. Here are the heating coils.
    • Here are the concrete blankets.
    • Concrete blankets.
    • Waterproofing: Concrete foundation walls and brick shelves are waterproofed. Procor waterproofing is sprayed on and rigid insulation is set in place.
    • Spread footing section with waterproofing sprayed on and insulation in place.
    • Backfilling: Due to the cold weather, it is important to remove the frost layer before backfilling with structural soil/fill. Here is unsuitable frost layer.
    • Backfilling: Area following backfill with structural soil/fill.
    • View from Seaver Street side of site.
    • January cont.
      • Applied for construction permit
      • Rest of project out to bid
    • February-March
      • Construction permit issued
      • Crane arrives on site in multiple pieces, is assembled and inspected by third party
      • Steel erection begins mid-March starting with Building C, followed by D, B, A
      • Utility work resumed with better weather in late March
    • Steel: March-September 2010
      • 2000 tons of structural steel in plan
      • 10,000 individual pieces
        • Beams & Columns
        • Plates
        • Angles
        • Lintels
    • Architect rendering of steel structure
    • Steel erection began 3/12/10
    • Steel erection in Building C, adjacent to back of old school
    • Crane in action
    • View from Seaver Street side of site
    • Work begins on third floor
    • View from lecture hall classroom in old school
    • Looking forward into 2010-12
      • Installation of metal deck, followed by concrete
      • Then exterior skin with goal of being weather tight by early 2011
      • Building substantially complete by March 2012
      • Then commissioning of systems, move from old school
      • Open for students September, 2012
    • Additional comments
      • Project is on time and within budget
      • MSBA closely monitoring project; both budget and progress of construction
      • GMP (guaranteed maximum price) signed by PBC in March
      • Outreach continues to neighbors and parents on progress and impact on school function
    • View from above Photos taken by Turner Construction from WHS tower
    • October 29, 2009
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    • November 14, 2009
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    • December 9, 2009
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    • January 11, 2010
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    • March 16, 2010
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    • March 31, 2010
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