Experimental tests for improving buildability of construction methods for high-strength concrete columns in high-rise buildings

Hak Bo Shim, Yousok Kim, Hyo Seon Park

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

High-strength concrete columns have the advantage of increasing the amount of usable area in the building because the cross-section of the columns takes up less space compared with columns using normal strength concrete. However, it is difficult to weld the steel reinforcement and steel members because of the narrow column width due to a decrease in the cross-section of the column, thereby causing construction delay in many cases. In this paper, five construction methods with different details for high-strength reinforced concrete columns are tested to improve the buildability of the columns. Five specimens with different construction details were tested and analyzed based on four aspects: (a) the relationship between load and displacements, (b) strain distributions, (c) axial stiffness, and (d) crack patterns. Specimens were constructed using concrete with a compressive strength of 55 MPa, and the design strength of all five specimens were set to about 10,740 kN. From results of the experiment, the specimen with a reduced number of vertical reinforcements from 24 of HD22 (SD400, Fy = 400 MPa) to 16 of UD22 (SD600, Fy = 600 MPa) was the most effective specimen to improve the buildability of the column without deteriorating the structural performance of the reference specimen.

Original languageEnglish
Article numbere1570
JournalStructural Design of Tall and Special Buildings
Volume28
Issue number2
DOIs
Publication statusPublished - 2019 Feb 10

Fingerprint

Concretes
Reinforcement
Steel
Compressive strength
Reinforced concrete
Loads (forces)
Welds
Stiffness
Cracks
Experiments

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction

Cite this

@article{0e08eec1821e445db84a706131aee764,
title = "Experimental tests for improving buildability of construction methods for high-strength concrete columns in high-rise buildings",
abstract = "High-strength concrete columns have the advantage of increasing the amount of usable area in the building because the cross-section of the columns takes up less space compared with columns using normal strength concrete. However, it is difficult to weld the steel reinforcement and steel members because of the narrow column width due to a decrease in the cross-section of the column, thereby causing construction delay in many cases. In this paper, five construction methods with different details for high-strength reinforced concrete columns are tested to improve the buildability of the columns. Five specimens with different construction details were tested and analyzed based on four aspects: (a) the relationship between load and displacements, (b) strain distributions, (c) axial stiffness, and (d) crack patterns. Specimens were constructed using concrete with a compressive strength of 55 MPa, and the design strength of all five specimens were set to about 10,740 kN. From results of the experiment, the specimen with a reduced number of vertical reinforcements from 24 of HD22 (SD400, Fy = 400 MPa) to 16 of UD22 (SD600, Fy = 600 MPa) was the most effective specimen to improve the buildability of the column without deteriorating the structural performance of the reference specimen.",
author = "Shim, {Hak Bo} and Yousok Kim and Park, {Hyo Seon}",
year = "2019",
month = "2",
day = "10",
doi = "10.1002/tal.1570",
language = "English",
volume = "28",
journal = "Structural Design of Tall and Special Buildings",
issn = "1541-7794",
publisher = "John Wiley and Sons Ltd",
number = "2",

}

TY - JOUR

T1 - Experimental tests for improving buildability of construction methods for high-strength concrete columns in high-rise buildings

AU - Shim, Hak Bo

AU - Kim, Yousok

AU - Park, Hyo Seon

PY - 2019/2/10

Y1 - 2019/2/10

N2 - High-strength concrete columns have the advantage of increasing the amount of usable area in the building because the cross-section of the columns takes up less space compared with columns using normal strength concrete. However, it is difficult to weld the steel reinforcement and steel members because of the narrow column width due to a decrease in the cross-section of the column, thereby causing construction delay in many cases. In this paper, five construction methods with different details for high-strength reinforced concrete columns are tested to improve the buildability of the columns. Five specimens with different construction details were tested and analyzed based on four aspects: (a) the relationship between load and displacements, (b) strain distributions, (c) axial stiffness, and (d) crack patterns. Specimens were constructed using concrete with a compressive strength of 55 MPa, and the design strength of all five specimens were set to about 10,740 kN. From results of the experiment, the specimen with a reduced number of vertical reinforcements from 24 of HD22 (SD400, Fy = 400 MPa) to 16 of UD22 (SD600, Fy = 600 MPa) was the most effective specimen to improve the buildability of the column without deteriorating the structural performance of the reference specimen.

AB - High-strength concrete columns have the advantage of increasing the amount of usable area in the building because the cross-section of the columns takes up less space compared with columns using normal strength concrete. However, it is difficult to weld the steel reinforcement and steel members because of the narrow column width due to a decrease in the cross-section of the column, thereby causing construction delay in many cases. In this paper, five construction methods with different details for high-strength reinforced concrete columns are tested to improve the buildability of the columns. Five specimens with different construction details were tested and analyzed based on four aspects: (a) the relationship between load and displacements, (b) strain distributions, (c) axial stiffness, and (d) crack patterns. Specimens were constructed using concrete with a compressive strength of 55 MPa, and the design strength of all five specimens were set to about 10,740 kN. From results of the experiment, the specimen with a reduced number of vertical reinforcements from 24 of HD22 (SD400, Fy = 400 MPa) to 16 of UD22 (SD600, Fy = 600 MPa) was the most effective specimen to improve the buildability of the column without deteriorating the structural performance of the reference specimen.

UR - http://www.scopus.com/inward/record.url?scp=85056393033&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056393033&partnerID=8YFLogxK

U2 - 10.1002/tal.1570

DO - 10.1002/tal.1570

M3 - Article

AN - SCOPUS:85056393033

VL - 28

JO - Structural Design of Tall and Special Buildings

JF - Structural Design of Tall and Special Buildings

SN - 1541-7794

IS - 2

M1 - e1570

ER -