Oregon University System OHSU Collaborative Life Sciences Building. Portland, OR

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1 Oregon University System OHSU Collaborative Life Sciences Building Portland, OR

2 Technical Information Size of Project: 28,000 cubic yards; 650,000 square foot Strength Requirements: 4,000 psi Water/Cement Ratio:.40 Unique or High Volume Admixtures: 30% Fly Ash Mix Total LEED Points Attributed to Concrete Construction: Platinum Unique Mix Designs: For LEED Platinum a mix with 30% fly ash was used Unique Specifications/Requirements: Main floors to receive polish required a Ff50, Fl50 floor flatness

3 The OUS/OHSU Collaborative Life Sciences Building (CLSB) was created for three top Oregon universities, including Oregon Health & Science University, Oregon State University and Portland State University. This state-of-the-art facility is dedicated to various disciplines within the life sciences field, such as medicine, dentistry and pharmaceutical. The structure is 650,000 square feet with a two-story underground parking garage. 32,000 cubic yards of concrete were supplied to complete the scope of work on this project.

4 Located underground beneath the rear promenade is OHSU Center for Spatial Systems Biomedicine, also known during construction as Dr. Gray s Lab, designed for zero vibration.

5 The building sits on alluvial gravel. Canceling out vibrations was no easy task. Buses and street cars run by regularly and barges on the Willamette River are equipped with low-rpm propellers. Gray s Lab is the most expensive corner of the entire complex at $12 million in construction costs.

6 The finish on a major portion of the main atrium floors and above is polished concrete requiring an Ff50-Fl50 floor flatness which is a very high requirement for an elevated concrete slab. With a 5,000 psi.39 water cement ratio concrete mix design this became a labor intensive accomplishment.

7 Suspended walkways are a commanding feature of the central glass Atrium and connect floors and departments.

8 In the Atrium, natural light pours in from the glass curtain walls to the east and a glass roof.

9 More light emanates from a public art installation of lights on the undersides of the elevated walkways.

10 This job also had a substantial amount of precast steps and benches well over 300 individual pieces weighing up to 6,000 pounds. The mobile crane used for installation had to be hoisted to the top plaza by the tower crane, as work was not allowed to occur from Moody Avenue.

11 The exterior site concrete and precast was a challenge as it sits on up to 13 ft of stepped structural foam which required non-conventional form setting techniques.

12 This building is on track to earn LEED Platinum certification, which is the highest rating that can be achieved. Concrete helped contribute to the LEED points with the use of 25% fly ash (a by-product of coal). Points were also contributed through the use of local materials reducing the transportation distances, participating in the construction waste management plan, as well as the use of low VOC products.

13 OHSU s new Schnitzer Campus, in Portland s South Waterfront District. The building is the first on the Schnitzer Campus, marking a significant next step in turning a former industrial site into a vibrant inner-city community. The building will be accessible by streetcar, Portland Aerial Tram and a new light rail line that will connect the South Waterfront with southeast Portland.