Kania SOM / Brennan Hall

Kania SOM / Brennan Hall University of Scranton - Scranton, Pennsylvania Douglas Wisniewski Structural Option

KaniaSOM / Brennan Hall Presentation Outline • Project Background • Introduction • Project Team • Construction • Structure • Information Technology • Wireless LAN Breadth Study • Wireless LAN • Access Points • IP Phones • Interactive Whiteboards • Video Conferencing • Structural Depth Study • Loads • Lateral System • Gravity System Conclusions Acknowledgements Questions • Scheduling/Cost Breadth Study • Material Costs • Construction Schedule • Final Cost Figures

KaniaSOM / Brennan Hall Project Background • Introduction • Five-story office/classroom building • 68,500 square feet • $12.3 million project • 1st and 2nd floors primarily classrooms • 3rd and 4th floors primarily faculty offices • 5th floor executive board room and catering facilities

KaniaSOM / Brennan Hall Project Background • Project Team • Owner – University of Scranton • Architects – Burkavage Design Associates • Structural Engineer – QproQ Engineering, Inc. • Geotechnical Consultant – Geo-Science Engineering • General Contractor – Sordoni Construction Services

KaniaSOM / Brennan Hall Project Background • Construction • Started March 1999 • Completed August 2000 • CM at risk delivery method • Adjacent dorms constructed at same time • Subcontractor lump sum bids

KaniaSOM / Brennan Hall Project Background • Structure • Structural steel framing • Fully rigid moments frames • Concrete-filled composite metal deck • Column spread and continuous wall footings

KaniaSOM / Brennan Hall Project Background • Information Technology • Showcase instructional technologies and conference center flexibility • Touch screen control of lighting, computing, and audio/video components • Overhead projector, motorized screens, image visualizers, DVD & CD players • High-end video displays, theater like sound and video conferencing in executive conference center • Auditorium featuring theater like audio and video environments

KaniaSOM / Brennan Hall Structural Depth Study • Loads • From AISC Manual of Steel Construction • Dead loads • Roof dead (no ballast) 16.7 psf • Roof dead (with ballast) 26.7 psf • Floor dead 100 psf From ASCE 7-02 • Live loads • Corridors 80 psf • Classrooms 40 psf • Offices 50 psf • Snow load 30 psf

KaniaSOM / Brennan Hall Structural Depth Study • Loads • As Calculated by RAM Frame • Wind loads N-S E-W • Roof level 12.2 kips 14.4 kips • Fifth Floor 21.5 kips 22.9 kips • Fourth Floor 20.5 kips 21.7 kips • Third Floor 21.7 kips 19.9 kips • Second Floor 22.5 kips 18.3 kips • Total 98.4 kips 97.2 kips • Seismic loads • Total Building Weight 5690 kips • N-S Base Shear 246.7 kips • E-W Base Shear 284.5 kips

KaniaSOM / Brennan Hall Structural Depth Study • Lateral System • Goals for proposed system • Eliminate high cost of steel moment connections • Reduce steel erection time by eliminating steel moment connections • Initially four shear walls • Two located on each of two opposing corners • Very rigid, very small drift • High lateral loads caused overturning moment problems

KaniaSOM / Brennan Hall Structural Depth Study • Lateral System • Combat overturning moments by • Adding two additional shear walls • Decrease lateral load to each wall • Increasing wall thickness • Increase mass for resisting moments • Increasing wall footing sizes • Increase mass for resisting moments

KaniaSOM / Brennan Hall Structural Depth Study • Lateral System • Designed as deep cantilever beams • Reinf. generally controlled by minimum steel areas • Exterior walls also designed for wind pressure

KaniaSOM / Brennan Hall Structural Depth Study • Gravity System • Goals for proposed system • Reduce weight of floor system • Improve efficiency of floor system • Replace wide flange infill beams with open web steel joists • Concerns • Fire Protection • Floor Vibrations

KaniaSOM / Brennan Hall Structural Depth Study Gravity System Typical joist layout Joists oriented to span long dimension of bay for economy

KaniaSOM / Brennan Hall Structural Depth Study • Gravity System Fire Protection • Difficult for spray-applied fireproofing to adhere to joist webs • Design No. G708 from U.L. Fire Resistance Directory • 2 hour fire rating • W8X28 min. beam size • Normal weight concrete, f’c = 3500 psi • Form deck with 2 ½” pitch, ½” corrugations • min. 16K6 joists spaced at 3’-6” max. • Spray-applied fire resistive material • Metal lath (optional)

KaniaSOM / Brennan Hall Structural Depth Study • Gravity System Fire Protection • Design No. G708 from U.L. Fire Resistance Directory

KaniaSOM / Brennan Hall Structural Depth Study • Gravity System Floor Vibrations • Calculations based on AISC’s Design Guide 11 • Applied loads • Live load 11 psf • Misc. 4 psf • Floor stiffness evaluation • Combined mode frequency 4.8 Hz • Not needed since less than 9 Hz • Walking evaluation • Peak acceleration 0.43%g • Less than office limit of 0.5%g

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study • Cost analysis to evaluate lateral system • Material Costs • Materials added • Reinforced concrete shear walls • Wall footings • Materials removed • Spread footings • Moment connections • Steel beams • Steel columns

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study Material Costs Shear Walls New wall footings and spread footings removed

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study Material Costs Shear connections replacing moment connections Steel beams and columns removed Total material cost savings of nearly $25,000

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study • Construction Schedule • Sequencing shear wall construction • Formwork erection • Concrete placing and finishing • Strip and rebuild forms • Time saved in steel erection • Fewer steel members • No moment connections • Sequencing with foundation construction • Time for concrete walls to reach 80% strength • Steel attached to concrete walls

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study • Detailed shear wall construction sequence • Two formwork crews • Sequence forming and placing

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study Construction Schedule Shear wall construction costs Steel erection costs Total construction costs nearly $128,000

KaniaSOM / Brennan Hall Scheduling/Cost Breadth Study • Final Cost Figures • Combination of material and construction costs • Reinforced concrete shear walls result in nearly a $103,500 increase in total project cost • However, amounts to less than a 0.9% increase

KaniaSOM / Brennan Hall Wireless LAN Breadth Study • Wireless LAN • Goals for proposed system • Less wire and cable throughout building • More flexible system • Reduce overhead costs caused by moves, extensions to networks, adding connections • Can serve as hot spot for students with laptops • Can connect other buildings to same network • Installing network in older buildings is easy • 802.11a • Selected over 802.11b & g standards • 64 users per access point • Lower possibility of interference • Good for; dormitories, computer labs, conference rooms, VoIP

KaniaSOM / Brennan Hall Wireless LAN Breadth Study Access Points • Analyzed • layout • # of users Determined # of AP’s AP AP AP AP AP AP SC SC AP AP AP AP AP AP AP AP

KaniaSOM / Brennan Hall Wireless LAN Breadth Study Integrated IP Phone System • PC Based Phones • Software allowing computers to be used as IP phones • Each individual’s extension follows them to any computer • Teleconferencing capabilities • Desktop IP Phones • Connected via Ethernet to wired backbone • Located in secretary and waiting areas • Wireless IP Phones • Used by physical plant employees

KaniaSOM / Brennan Hall Wireless LAN Breadth Study Interactive Whiteboards • Replaces chalkboard, overhead projector and screen • Can function simply as a whiteboard • Can display computer images • Can save handwritten notes to print or post on course websites Video Conferencing • Located in executive conference center • Built in conferencing with multiple video and audio sites • Dual LCD monitors • Add a PC to the meeting • See live PC presentations and presenter simultaneously

KaniaSOM / Brennan Hall Conclusions • Conclusions • Structural Depth Study – Lateral System • Lateral system consisting of six reinforced concrete shear walls • Very rigid, little drift • Larger wall footings needed for overturning • Was a successful educational project • Learned how to design shear walls • Scheduling/Cost Breadth Study • Additional crews and equipment needed for five weeks to construct shear walls • Steel erection shortened four days • Shear walls increased total project cost by $103,500 • Less than a 0.9% increase

KaniaSOM / Brennan Hall Conclusions • Conclusions • Structural Depth Study – Gravity System • Economic joist layout • More efficient floor framing • Two hour fire rated ceiling assembly • Adequate for floor excitation • Wireless LAN Breadth Study • More flexible network solution • Access points located throughout building • IP telephony available from any networked computer • Instructional spaced equipped with interactive whiteboards • Sophisticated video conferencing units in executive conference center

KaniaSOM / Brennan Hall Acknowledgements • I would like to thank • James Devers, AIA, U of S Physical Plant • Don Flynn, Burkavage Design Associates • Linda Hanagan, PhD, PE, Penn State University • James Kerns, PE, QproQ Engineering • Francis Kranick, U of S Physical Plant • M. Kevin Parfitt, Penn State University • Andrew Shedlock, Sordoni Construction • Ronald Skutnick, U of S Network Resources • David Wilson, AIA, U of S Physical Plant • David Wisniewski, Raytheon For all of the time and information they have contributed to this project.

KaniaSOM / Brennan Hall Questions ?

Kania SOM / Brennan Hall