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Pa141046
Gsa_wtrinfl_stdy_2b_w2
P1080130
Dsc_0044
P1080232
Core%20sample%20documented

Project Thumbnails

  • Pa141046
  • Gsa_wtrinfl_stdy_2b_w2
  • P1080130
  • Dsc_0044
  • P1080232
  • Core%20sample%20documented

Project Summary

For numerous years, the General Services Administration (GSA) had been monitoring multiple areas of water infiltration by having various AE firms conduct several studies in the Ludwig Mies Van der Rohe-designed buildings; formally known as the Everett M. Dirksen U.S. Courthouse and the John C. Kluczynski Federal Building. Bailey Edward performed the first comprehensive study that identified all solutions including structural issues, costs and priorities so that repairs could be implemented in a systematic manner. Using physical investigation and reviewing existing data and drawings from all previous studies and a recently completed plaza restoration project, Bailey Edward was able to determine that eight below-grade infiltration areas were under the building plaza.

To determine current conditions and identify areas of distress above and below grade, a combination of scaffolding, lifts and boson’s chairs were utilized during the façade surveys alongside other forms of destructive and non-destructive testing. Non-destructive testing included endoscopic and video televising, infrared thermography, electrical resistance, and un-calibrated water testing. Destructive testing included removing select concrete cores along with samples of sealants and expansion joints in order to view the conditions and assemblies behind the surfaces.

Thorough reports of deficiencies along with recommendations and opinions of probable construction cost were provided for review by the GSA, including review by the GSA’s historic preservation staff. A color coded 3-D digital model of the plaza and basements was developed so that inter-relationships between areas of distress and infiltration could be fully understood. In addition to presenting a digital model, the required scope of work for each area and building was reviewed and prioritized based on the level of deterioration in order to establish a phased approach based upon annual funds available.

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Location

Chicago, Illinois

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Design Vignette

With a three-dimensional model, our team correlated and determined existing deficiencies requiring repair which was used to generate diagrams to clearly illustrate problem areas. Using this model, diagrams were developed so that the issues and most critical repairs could be easily understood and ensured that the consolidated report can be utilized as a road map for phased construction in the upcoming years.