Author(s): A. P. Vargas & G. G. Schierle
The textile block system is a unique structural system created by Frank Lloyd
Wright in the early 1920s, before any seismic regulations existed in California.
The first four houses, all located in California, have been deteriorating severely
due to seismic and environmental effects.
Previous research and interventions to
preserve them have not been completely successful.
It is therefore important to
carry out an analysis of the seismic vulnerability of these structures, and explore
ways of strengthening them to comply with current seismic requirements.
paper demonstrates that the textile block system can be upgraded to current
structural standards for seismic safety based on the International Building Code,
IBC 2003 and codes for historical structures, including the California Historical
Building Code and the Federal Emergency Management Agency (FEMA).
The Freeman House is used as case study.
The allowable stress design
method (ASD) is used for the analysis.
The paper also discusses procedures and
construction methods to strengthen existing textile block structure.
methodology presented may be used for seismic upgrading of other historic
structures as well.
textile block, Frank Lloyd Wright, ASD, allowable stress, shear
walls, base shear, seismic analysis, seismic upgrading.
With the recognition of Frank Lloyd Wright as great architect and designation of
many of his buildings as historical monuments, there has been increasing
emphasis placed on the preservation and conservation of his masterpieces.
This paper aims to analyze and upgrade with an affordable and non
destructive method the Freeman House, designed by Frank Lloyd Wright in
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Paper DOI: 10.2495/STR070601
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This paper can be found in the following bookStructural Studies, Repairs and Maintenance of Heritage Architecture XBuy