TY - GEN
T1 - Influence of reinforcement ratio (ρ) and repeated load (n) to crack width (w) on one way concrete slab
AU - Md, Agoes Soehardjono
AU - Igp, Raka
AU - Suprobo, Priyo
PY - 2006
Y1 - 2006
N2 - Problem of crack in a reinforced concrete structure still became a major issue for researchers. Current research is not shown a satisfactory result, particularly on the effect of repeated load on the crack width. The experiment was conducted using a one way concrete slab. The analytical model and the experiment result were used to analyze the maximum crack width. The Carpinteri method was used to analyze the initial crack depth and the fatigue crack growth rate on the composite materials (reinforced concrete slab). The result showed that at 10 Hz load frequency, steel stress ratio, reinforcement ratio and repeated load do affect the maximum crack width until bond fatigue limit state by three linear model includes: (i) initial stage wo, (ii) increased stage w and (iii) bond fatigue stage wf, where wo is the initial crack width and wf is the bond losses crack width. Based on concrete cover c/h = 0,15, w ≤ 0,30 mm, wf/wo = 1,30, and fs/fy ≤ 0,50. Therefore, we are proposed the spacing of one way concrete slab under repeated load shall not exceed 110.000/fs - 6,34 c (mm).
AB - Problem of crack in a reinforced concrete structure still became a major issue for researchers. Current research is not shown a satisfactory result, particularly on the effect of repeated load on the crack width. The experiment was conducted using a one way concrete slab. The analytical model and the experiment result were used to analyze the maximum crack width. The Carpinteri method was used to analyze the initial crack depth and the fatigue crack growth rate on the composite materials (reinforced concrete slab). The result showed that at 10 Hz load frequency, steel stress ratio, reinforcement ratio and repeated load do affect the maximum crack width until bond fatigue limit state by three linear model includes: (i) initial stage wo, (ii) increased stage w and (iii) bond fatigue stage wf, where wo is the initial crack width and wf is the bond losses crack width. Based on concrete cover c/h = 0,15, w ≤ 0,30 mm, wf/wo = 1,30, and fs/fy ≤ 0,50. Therefore, we are proposed the spacing of one way concrete slab under repeated load shall not exceed 110.000/fs - 6,34 c (mm).
KW - Bond fatigue
KW - Crack width
KW - Reinforcement ratio
KW - Repeated load
KW - Stress ratio
UR - http://www.scopus.com/inward/record.url?scp=84886669239&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84886669239
SN - 9748257177
SN - 9789748257174
T3 - Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
SP - 619
EP - 624
BT - Real Structures
T2 - 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Y2 - 3 August 2006 through 5 August 2006
ER -