Location

St. Louis, Missouri

Session Start Date

6-1-1993

Abstract

After the initial full loading of two similar grain silos, which were built on silty sand, the Export-Import Building tilted toward the Working Tower and the joints between the two structures closed. The lateral force caused cracks in the columns of E-I Buildings. Two different methods were used to rotate the structure. The first method was based on the uneven loading of structures. The second method vas to remove thin layers of soil by chains under the foundations. The B-I Buildings were successfully rotated at both sites in 1989. The measurements for settlement and tilt were made to compare the performance of the structures after the imposed rotation. The comparisons of results show that the tilting of structures by the second method is preferable to the first method. This is due to the fact that in removing thin layers of soil the change in stress distribution is minimized.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Third Conference

Publisher

University of Missouri--Rolla

Publication Date

6-1-1993

Document Version

Final Version

Rights

© 1993 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Jun 1st, 12:00 AM

The Performance of Structures After Imposed Rotations

St. Louis, Missouri

After the initial full loading of two similar grain silos, which were built on silty sand, the Export-Import Building tilted toward the Working Tower and the joints between the two structures closed. The lateral force caused cracks in the columns of E-I Buildings. Two different methods were used to rotate the structure. The first method was based on the uneven loading of structures. The second method vas to remove thin layers of soil by chains under the foundations. The B-I Buildings were successfully rotated at both sites in 1989. The measurements for settlement and tilt were made to compare the performance of the structures after the imposed rotation. The comparisons of results show that the tilting of structures by the second method is preferable to the first method. This is due to the fact that in removing thin layers of soil the change in stress distribution is minimized.