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Title: Experimental Study of Reinforced Concrete Slabs under Different Loading Rates
Authors: Xiao, Yao
Li, Bing
Fujikake, Kazunori
Keywords: Dynamic behavior
Loading rate
Reinforced concrete slab
Issue Date: 2016
Source: Xiao, Y., Li, B., & Fujikake, K. (2016). Experimental Study of Reinforced Concrete Slabs under Different Loading Rates. ACI Structural Journal, 113(1), 157-168.
Series/Report no.: ACI Structural Journal
Abstract: Eighteen reinforced concrete (RC) slabs were manufactured and tested under static (0.0004 m/s [0.0013 ft/s]), medium (0.4 m/s [0.13 ft/s]), and high (2 m/s [6.6 ft/s]) rates of concentrated loading at slab center using a displacement-controlled rapid-loading machine. The data from the experiment were used to study the effects of loading rates and other parameters (such as slab depth and longitudinal and shear reinforcement ratios) on the performance of RC slabs. From test results, the load-carrying and energy absorption capacities of specimens, inertial force, and strain rate were found to increase with higher loading rates. Shear reinforcement was found to be more effective than longitudinal reinforcement in enhancing slab’s performance under a high loading rate. The failure modes of specimens were governed by punching shear irrespective of loading rate. Additionally, another six slabs were made and tested under low-velocity (5.425 m/s [17.8 ft/s]) impact using a drop-weight machine. A comparison between the results from high loading rate and impact tests indicates similar damage process, failure mode, strain rate, and energy absorption capacity. This comparison well correlates a high-loading-rate test with impact testing, which suggests the possibility of using high load rate test to help understand slab’s performance under low-velocity impact.
ISSN: 0889-3241
DOI: 10.14359/51688067
Schools: School of Civil and Environmental Engineering 
Rights: © 2016 American Concrete Institute (ACI). This paper was published in ACI Structural Journal and is made available as an electronic reprint (preprint) with permission of American Concrete Institute (ACI). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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