A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A study of the behaviour of volume change cracking in base restrained concrete walls
Abstract The present work studies the problem of cracking due to volume change of base restrained reinforced concrete walls. The cracking behaviour of some 61 full size walls and 14 experimental walls was investigated. The observed primary and secondary crack spacings and widths were compared with the values obtained using recently developed formulas and with formulas developed previously. Good agreement was found between the observed values and those predicted using the developed formulas. On the practical side, the results showed clearly that crack spacing and, consequently, the crack width increased with increase of wall height and, therefore, a higher percentage of reinforcement or closer joints are required for their control. Furthermore, crack width was not uniform with the wall height, but varied according to the change of restraint associated with cracking and, therefore, the percentage of reinforcement may be varied with the wall height to obtain approximately uniform crack widths. This may lead to savings in reinforcement cost.
A study of the behaviour of volume change cracking in base restrained concrete walls
Abstract The present work studies the problem of cracking due to volume change of base restrained reinforced concrete walls. The cracking behaviour of some 61 full size walls and 14 experimental walls was investigated. The observed primary and secondary crack spacings and widths were compared with the values obtained using recently developed formulas and with formulas developed previously. Good agreement was found between the observed values and those predicted using the developed formulas. On the practical side, the results showed clearly that crack spacing and, consequently, the crack width increased with increase of wall height and, therefore, a higher percentage of reinforcement or closer joints are required for their control. Furthermore, crack width was not uniform with the wall height, but varied according to the change of restraint associated with cracking and, therefore, the percentage of reinforcement may be varied with the wall height to obtain approximately uniform crack widths. This may lead to savings in reinforcement cost.
A study of the behaviour of volume change cracking in base restrained concrete walls
Kheder, G. F. (author) / Al-Rawi, R. S. (author) / Al-Dhahi, J. K. (author)
1994
Article (Journal)
English
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