Project Introduction New high-tech classroom and lab facility Area : 30,000sq.ft. Function –To provide a home for innovative courses that take a team based approach to problem solving and design. –Inhabitants of building should feel a part of surrounding environ. –Create a work environment that stresses collaborative achievement.
Project Constraints Constrained site- limited by palm grove, existing buildings and sea Budget million Completed by 9/30/12 Hurricane zone Hot, humid climatic conditions; high heat loads Structural system must withstand high winds and possible flooding Floor height restrictions
Site Context - Seaside, Florida Seaside Florida provides a rich and colorful oceanfront community with a unique architectural sophistication. Hybrid Building, Steven Holl City/ Campus Plan
Existing Site Plan
Design Concept 1 Special architectural features High heat load on east side Solid auditorium structure Inefficient floor plans
Design Concept 2 Meets height requirements Limited cranage space Compact but awkward floor plans
Design Concept 3 Light steel structure over flood protected “Core” Business Inflexible architecture layout Excessive use of concrete
Architecture View of Building from road
Site Plan
First Floor Plan South Elevation South-east Axon
Second Floor Plan West Elevation
Third Floor Plan North Elevation
Section Through Auditorium East Elevation
Area Analysis Entry Perspective
Interior Space Model First Floor View from Sea
Interior Space Model Second Floor
Interior Space Model Third Floor
Iterative Processes Wayfinding problems caused by numerous corridors Quality of space corrupted by low ceiling heights Problem: Design for 3rd floor office wing, elevated slab Elevated slab raises several constructability issues Prohibitive complexity for architectural and structural design
Iterative Processes Simplified architectural design Organized architectural design, faculty offices with exterior view Solution: Swap second and third floors entirely Auditorium Offices Large Classrooms Walls to hide main Beams in Large classrooms placed under large open steel truss roofing
Iterative Processes Architect prefers tighter spacing of structural elements to improve asymmetric balance Glazed corner important to design concept Leveraging Aesthetic and Functional Concerns Large shear walls block a great deal of window wall on North elevation
Structural System Gravity loads –DL = 150 psf –LL = psf Wind load 120 psf –ASCE 7-95 Preliminary system
Office Wing Shear wall system Foundation 9 ‘ Flat slab perimeter beam
Flat Plate in SAP 2000
Structural Model
Gravity System Beams –Cast in place 9”x12” (2.0%) Columns –Custom precast 18”x18” (3%) / 20”x20” (3.5%) –Auditorium precast 26”x16” (1.5%) –Interior cast in Place 18”x18” (2%)
Auditorium Retaining wall / slab Precast columns Glass corners Roof ?
Lateral System Auditorium Higher wind pressure Shear wall connection Ringbeam
Integrated Solution Hidden steel beams W24x450 (90%) Larger shear walls Reduced cantilever
Structural Model
Wind Deflection
Cost Breakdown - $ 5,600,000
Schedule - Start Date 1 May 2011 Finish Date 25 Apr 2012
Crane - Link Belt Hydraulic Truck Crane - HTC Backhoe Loader - Caterpillar 426CEquipment
Comparison: Fenestration System
PrecastCast-in- place Comparison: Column Construction
1 Aug 2011
12 Oct 2011
3 Nov 2011
Opportunities for Off-site Fabrication Copper roof Auditorium Roof Truss Precast concrete columns Curtain wall and cladding frame
Design Analysis Location a factor in team dynamics Tight design process between engineer and architect Design process monitored by construction management
Group Assessment Collaborative Successes –Strong integration of structure and architecture –Friendly relationship, friendly struggles –Programmatic goals achieved through iterative design process Collaborative Inadequacies –Lack of shared product model –Creation of numerous design models, several for each discipline –Difficulties with communicating key structural concerns
Using Technology Collaborative Means Heavy use of web based technologies –NetMeeting – –Discussion Forums –Group web space Technology cannot offset lack of communication Learning new technologies requires time overhead and may not produce desired results
Lessons learned Everyone should use compatible technology Shared product model saves time and increases efficiency across disciplines Team should follow protocols for developing and sharing information Greater understanding of other disciplines needs If technology is used properly, time and effort are saved for the entire team