37-91 Purchase 1360 Belle - Parking Garage

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BELLE AVE PARKING GARAGE SAI ~89059 Page 1 SCOPE OF REPORT The purpose of this report is to evaluate the structural in- tegrity of the existing parking structure in its present condi- tion. This evaluation is based On visual observations only with the assumption that the structure was initially designed properly and constructed in accordance with the original design documents by Ramp Engineering Associates drawings S6 to $29. Included in this report is a description of recommended repairs, order of im- portance and a general scope of estimated repair cost. Suggested maintenance recommendations are also addressed. This report is intended to generally define the scope of rehabilitation work required and to establish a preliminary es- timate of costs. Prior to any'actual construction, additional engineering services and field inspections would be required to produce a set of construction documents. BACKGROUND The 15 + year old parking s. tructure consists of (5) structurally supported levels (top level being the roof) plus a slab on grade level. Four stair/elevator towers are located at the corners of the garage with only the southern (2) towers open for use. The structure itself consists of precast concrete tee beams and columns. Tee beams are typically prestressed; although some beams along the east and west driving aisles are post tensioned. Topping slab is 3" cast in place concrete typically except for the east and west driving aisles where a 6 1/2" post tensioned slab is utilized. Stair 'towers consist of reinforced concrete walls faced with brick along with poncrete stairs. The parking structure foundati'ons typically consist of caissons bearing on shale but the stair 'towers and adjacent ornamental columns utilize a concrete.mat and spread footings bearing, on soil. The garage contains an expansion joint separating the structure into an east and west segment. The upper-most parking level has roofing material over the concrete slabs. A-6