Design of high-strength reinforced concrete columns
Other Title
高強度鋼筋混凝土柱之設計
Journal
Journal of the Chinese Institute of Civil and Hydraulic Engineering
Journal Volume
30
Journal Issue
3
Pages
223-229
Date Issued
2018
Author(s)
Tung-Chun Tsai
Abstract
The design provisions of high-strength reinforced concrete columns are presented. The high strength is defined for concrete to have compressive strength not exceeding 100 MPa (1000 kgf/cm2), for longitudinal reinforcement to have yield strength not exceeding 690 MPa (7000 kgf/cm2), and for transverse reinforcement to have yield strength not exceeding 790 MPa (8000 kgf/cm2). The design provisions presented include scope, axial and flexural strengths, shear strength, and confinement design. Compared with the existing reinforced concrete code, the provisions differ in the following aspects: (1) the equivalent stress block for flexural strength; (2) the concrete compressive strength limit and stress limit of compression reinforcement for axial strength; (3) the upper limit of yield strength of shear reinforcement for shear strength; (4) the upper bound detailed shear strength equation; (5) the minimum shear reinforcement; (6) the maximum probable moment strength for shear design; (7) the amount and details of confinement reinforcement to consider the effects of axial load, effectiveness of hooks, and concrete compressive strength and the upper limit of yield strength of confinement reinforcement.
Type
journal article