Alternative Title

Paper No. 3.01

Location

St. Louis, Missouri

Session Start Date

3-8-1998

Session End Date

3-15-1998

Abstract

This case history involves the foundation and site liquefaction potential evaluation for the renovation of a one-hundred-year old building. The subject project is a four story structure with one basement, built of thick masonry walls and supported on shallow foundations. The project site is located in a seismic zone 3 per UBC. The subsurface geology consists of alluvial inter-bedded layers of silt, sand, and clay. Substantial additional loads were considered during the proposed renovation, and thus an extensive study on the foundation and geotechnical aspects of the project were required, including site geology, evaluation of bearing capacity and settlement, evaluation of factors of safety on bearing capacity before and after the proposed renovation, and evaluation of the liquefaction potential. Foundation aspects and boundary conditions of new elements for seismic retrofit (such as shear walls) added to the existing structure are also presented.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-8-1998

Document Version

Final Version

Rights

© 1998 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Case History on the Foundation and Site Liquefaction Potential Evaluation for the Renovation of a One-hundred Year Old Building

St. Louis, Missouri

This case history involves the foundation and site liquefaction potential evaluation for the renovation of a one-hundred-year old building. The subject project is a four story structure with one basement, built of thick masonry walls and supported on shallow foundations. The project site is located in a seismic zone 3 per UBC. The subsurface geology consists of alluvial inter-bedded layers of silt, sand, and clay. Substantial additional loads were considered during the proposed renovation, and thus an extensive study on the foundation and geotechnical aspects of the project were required, including site geology, evaluation of bearing capacity and settlement, evaluation of factors of safety on bearing capacity before and after the proposed renovation, and evaluation of the liquefaction potential. Foundation aspects and boundary conditions of new elements for seismic retrofit (such as shear walls) added to the existing structure are also presented.