Title:
Thirteen Years of Deformations in Water Tower Place
Author(s):
Henry G. Russel and Steven C. Larson
Publication:
Structural Journal
Volume:
86
Issue:
2
Appears on pages(s):
182-191
Keywords:
age; columns (supports); creep properties; creep tests; deformation; drying shrinkage; field tests; high-rise buildings; high-strength concretes; measurement; reinforced concrete; research; strains; walls; Structural Research
DOI:
10.14359/2681
Date:
3/1/1989
Abstract:
Water Tower Place, an 859 ft (262 m) high reinforced concrete building, was instrumented to measure the time-dependent vertical deformations of columns, walls, and caissons. Vertical shortening of individual members and their relative vertical displacements were measured at selected floor levels. Most measurements were taken during the first 5 years after construction started. Additional measurements were obtained after about 13 years. Measured deformations were compared with calculated deformations and satisfactory agreement was obtained. Deformations were calculated based on actual construction schedule, estimated loads during construction and occupancy, and measured material properties.