TY - JOUR
T1 - Proposal of expansion joint spacing and width for concrete structures
T2 - Concrete median barrier case
AU - Jeong, Yoseok
AU - Lee, Ilkeun
AU - Lee, Jaeha
AU - Min, Geunhyung
AU - Kim, Wooseok
N1 - Publisher Copyright:
© 2019, Korea Concrete Institute. All rights reserved.
PY - 2019
Y1 - 2019
N2 - Spacing and width are key elements of Concrete Median Barrier (CMB) because they accommodate expansion and contraction induced by temperature changes. However, spacing has been empirically installed in CMB without consideration of thermal-mechanical behavior of CMB. This paper aims at proposing the appropriate spacing and width of CMB based on literature review, field investigations, and thermal behavior analysis of CMB. According to literature review on expansion joint spacing, spacing ranges between 6 m and 200 m. The critical length (Lc) was developed based on thermal behavior analysis of CMB, which is the maximum length required to achieve expansion of CMB. In order to prevent CMB blow-ups due to temperature changes, appropriate spacing and width are proposed as follows: spacing 210 m and width 30 mm. In addition, installation location, construction methods and limitations are also considered.
AB - Spacing and width are key elements of Concrete Median Barrier (CMB) because they accommodate expansion and contraction induced by temperature changes. However, spacing has been empirically installed in CMB without consideration of thermal-mechanical behavior of CMB. This paper aims at proposing the appropriate spacing and width of CMB based on literature review, field investigations, and thermal behavior analysis of CMB. According to literature review on expansion joint spacing, spacing ranges between 6 m and 200 m. The critical length (Lc) was developed based on thermal behavior analysis of CMB, which is the maximum length required to achieve expansion of CMB. In order to prevent CMB blow-ups due to temperature changes, appropriate spacing and width are proposed as follows: spacing 210 m and width 30 mm. In addition, installation location, construction methods and limitations are also considered.
KW - Concrete median barrier
KW - Expansion joint
KW - Spacing
KW - Temperature
KW - Width
UR - http://www.scopus.com/inward/record.url?scp=85073269603&partnerID=8YFLogxK
U2 - 10.4334/JKCI.2019.31.2.131
DO - 10.4334/JKCI.2019.31.2.131
M3 - Article
AN - SCOPUS:85073269603
SN - 1229-5515
VL - 31
SP - 131
EP - 138
JO - Journal of the Korea Concrete Institute
JF - Journal of the Korea Concrete Institute
IS - 2
ER -