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Title: Cyclic Response of Reinforced Concrete Squat Walls to Boundary Element Arrangement

Author(s): Min-Yuan Cheng, Yen Chou, and Leonardus S. B. Wibowo

Publication: Structural Journal

Volume: 117

Issue: 4

Appears on pages(s): 15-24

Keywords: boundary element; high strength; low rise; wall

Date: 7/1/2020

Abstract:
An experimental program consisting of four specimens was conducted to evaluate effects of different arrangements of boundary elements on cyclic responses of reinforced concrete (RC) squat walls with a shear span-to-length ratio hw/lw of 1.0. Three test specimens were designed to have shear stress demand associated with the development of probable flexural strength. One specimen used high-strength concrete and steel; shear stress demand in this specimen was slightly reduced due to the use of high-strength concrete. Test results showed that peak strengths of all test specimens can be satisfactorily predicted by nominal flexural strength. Deformation capacity increased more effectively in specimens using barbell-shaped boundary elements. For the two specimens having barbell-shaped special boundary elements and equivalent steel force, Specimen BB_H using high-strength steel with tested yield stress exceeding 120 ksi (827 MPa) and high-strength concrete with cylinder strength of approximately 12 ksi (83 MPa) exhibited larger deformation capacity than that of Specimen BB.




  

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