100 East Pratt Street100 East Pratt StreetBaltimore, MDBaltimore, MD

The times are a-changin’The times are a-changin’

Renewal Renewal of Inner of Inner HarborHarbor

History of Baltimore

How do we expect our employees to How do we expect our employees to work if they can’t even fit inside the work if they can’t even fit inside the

building?building?

Building owner wants Building owner wants more office spacemore office space– Expand companyExpand company– Prime locationPrime location

Here He Comes To Save the Day!!Here He Comes To Save the Day!!

Why Craig you ask??Why Craig you ask??– SOM => large structural SOM => large structural

engineering and engineering and architectural firmarchitectural firm

– A lot of experienceA lot of experience

Craig Hartman

But first….But first….

OthersOthers must also overcome similar must also overcome similar construction site obstaclesconstruction site obstacles

Mid-Continent Mid-Continent Tower in TulsaTower in Tulsa– Wanted to Wanted to

expand companyexpand company– 20-story addition 20-story addition

by adding a by adding a cantilevered cantilevered towertower

DifferencesDifferences– No distinction No distinction

between old and between old and new structurenew structure

– Without a hat truss Without a hat truss the transfer of forces the transfer of forces is not as clearis not as clear

Bringing those forces downBringing those forces down

Tinker Toy with too much Office Tinker Toy with too much Office Space or Structural Art??Space or Structural Art??

Many criticsMany critics– Too much office Too much office

spacespace– Blocking harbor Blocking harbor

viewsviews

Boston Properties AKA Money BagsBoston Properties AKA Money Bags

Cost for renovationCost for renovation– $75 million$75 million

Purchased by Boston PropertiesPurchased by Boston Properties– $137 million$137 million

*record price for downtown Baltimore *record price for downtown Baltimore Office ProjectOffice Project

The 3 S’sThe 3 S’s

SocialSocial

Proved to be an Proved to be an economic gaineconomic gain– Attracted large Attracted large

companiescompanies– Funded by owners not Funded by owners not

the publicthe public

SymbolicSymbolic

Unique structureUnique structure– Stands out as part of Stands out as part of

Baltimore’s skylineBaltimore’s skyline– First modern building First modern building

design in the Harbor design in the Harbor areaarea

ScientificScientific

Clear indication of transfer Clear indication of transfer of forcesof forces

Efficient designEfficient design– Maximizes office space Maximizes office space

despite obstacles of despite obstacles of construction siteconstruction site

– Hat truss stiffens building Hat truss stiffens building against wind loadsagainst wind loads

Crowning AchievementCrowning Achievement

Overcame criticsOvercame critics– Proved to draw big Proved to draw big

companies to the companies to the harbor areaharbor area

Overcame site Overcame site constraintsconstraints– Efficient design of Efficient design of

structural artstructural art