Proposal Presentation

BROOKLYN, KINGS 2015 STRUCTURAL

PROJECT

Carlos SantanaMarie BrumelotJohn MorochoAfaq Sulehria

Project Overview Architectural Information and drawings Green Roof Structural Information Structural Design:

Columns Beams Girders Base Plate Piers Footing Foundation Wall Brace System

Cost Estimation Schedule

OVERVIEW

PROJECT OVERVIEW

21-storey Building (304.5-ft high) 2 stories set back 2 underground parking levels

Location: 8791 21st Avenue, Brooklyn, NY

Footprint: 20,125 square feet Community areas & recreational areas Green Roof

Building Model

PROJECT OVERVIEW

Parking Model

PROJECT OVERVIEW

Parking Model

PROJECT OVERVIEW

Building Type: OfficeBuilding Category II (Low Hazard)Exterior Wall System: Kawneer 1600 system 2 Curtain

Wall 2 1⁄2” x 7 1⁄2”

SSG curtain wall Low to mid-rise applications

ARCHITECTURAL INFORMATION

Parking Level 1

ARCHITECTURAL DRAWINGS

Parking Level 2

ARCHITECTURAL DRAWINGS

Lobby

ARCHITECTURAL DRAWINGS

Typical Floors

ARCHITECTURAL DRAWINGS

Setback

ARCHITECTURAL DRAWINGS

Bulkhead

ARCHITECTURAL DRAWINGS

Elevations

ARCHITECTURAL DRAWINGS

Semi-intensive Green RoofRecreational environment

Handicap accessibility Plants and Woodgrain tiles

Benefits for the building Stormwater management:74.8% retention rate Durability: UV protection

GREEN ROOF

GREEN ROOF – CROSS SECTION

Design Specification: ACI 318, ASCE 7-05, and AISC Steel Construction Manual

Building height: 304.5 feet ,Parapet height: 4 feetLoadings:

Dead Load: Typical Floor = 70 psf; Roof = 157 psf.

Live Load: ASCE Standard 7-05

STRUCTURAL INFORMATION

Balanced Snow Load = 45psfGround Snow Load = 20 psfHeight of balanced snow load = 2.06 ftDrift Height = 2.92 ftDrift Width = 9.94 ftMaximum Intensity Drift Surcharge Load = 42.21 psfMaximum Roof Snow Load = 87.21 psf

STRUCTURAL INFORMATION

STRUCTURAL INFORMATION

STRUCTURAL INFORMATION

Interior Columns

STRUCTURAL DESIGN – INTERIOR COLUMNS

Interior Columns

STRUCTURAL DESIGN – INTERIOR COLUMNS

Interior Columns

STRUCTURAL DESIGN – INTERIOR COLUMNS

Interior Columns

STRUCTURAL DESIGN – INTERIOR COLUMNS

FoundationWe use the cantilever method.

W14x145W14x159

STRUCTURAL DESIGN - MOMENT FRAME COLUMNS

Lobby to 18 th floor

SIZE

STRUCTURAL DESIGN – MOMENT FRAME COLUMNS

Setback

W14x283

STRUCTURAL DESIGN - MOMENT FRAME COLUMNS

Typical Floor

Inner Core: W18x60 with 45 studs per beamOuter Core: W18x55 with 32 studs per beam

Secondary beams 7.5’o/c: - For L=37.5ft: W16x4020 studs per beam, partial composite with 1” Camber- For L= 22.5ft: W16x2613 studs per beam, partial composite.

STRUCTURAL DESIGN - BEAMS

Transfer Floor

We use W18x60 with 45 studs per beam and ¾” camber both for inside and outside the Core.

Secondary beams 7.5’o/c: - For L=37.5ft: W18x6045 studs per beam, partial composite, 1” Camber.- For L= 22.5ft: W18x4644 studs per beam, partial composite.

STRUCTURAL DESIGN - BEAMS

Set Back Floor

Inner Core: W18x60 with 45 studs per beam

Outer Core: W16x31 with 24 studs per beam

STRUCTURAL DESIGN - BEAMS

Bulkhead

W18x60 with 45 studs per beam

STRUCTURAL DESIGN - BEAMS

35-ft Long beams:W30x12422.5-ft Long beams:W14x43

STRUCTURAL DESIGN – MOMENT FRAME BEAMS

We use W33x130 Transfer Girders

STRUCTURAL DESIGN – TRANSFER GIRDERS

We Assume that the area of concrete is 1.5 times bigger than the base plate.

STRUCTURAL DESIGN – BASE PLATE

Concrete PiersWe assume d=3”.

STRUCTURAL DESIGN - PIERS

STRUCTURAL DESIGN – FOOTINGS

STRUCTURAL DESIGN – FOUNDATION WALL

Thickness: 16”Soil Pressure on total height: 905 psfMaximum Pressure: 452.4 psf

Reinforcing: #7 bars with 12 in spacingSecondary #6 bars with 12 in spacing

STRUCTURAL DESIGN – BRACE SYSTEM

STRUCTURAL DESIGN – BRACE SYSTEM

STRUCTURAL DESIGN – BRACE SYSTEM

STRUCTURAL DESIGN – BRACE SYSTEM

COST ESTIMATION

SCHEDULE