Evaluation of Shear Effect on Deflection of RC Beams
Source abstract
Abstract
This study evaluates the effect of shear on the deflection of reinforced concrete (RC) beams subjected to combined bending and shear. A total of nine simply supported beams were manufactured with the shear span-to-depth ratio, tension steel ratio, and shear capacity ratio as test variables. The experimental results were used to evaluate the effect of shear on the deflection by separating them into flexural and shear deformations. The theoretical deflection of the specimens was calculated using the effective moment of inertia equation recommended by ACI 318-19 based on the curvature relationships and experimental results of the flexure critical beams. By comparing the experimental and analytical results, it was revealed that the deflection obtained using the ACI equation underestimated the experimental results by up to about 1.6 times when the shear effect was large.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Structural Load-Bearing Analysis · Structural Engineering and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil, Architectural and Environmental System Engineering Graduate School, Sungkyunkwan University, Suwon 16419, Korea
Department of Architectural Engineering & Urban System Engineering, Kongju National University, Cheonan 31080, Korea
References (20)
Show source-provided references
1. ACI Committee 318 (2019). Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19), American Concrete Institute.
2. Branson, D.E. (1965). Instantaneous and Time-Dependent Deflections on Simple and Continuous Reinforced Concrete Beams, Alabama Highway Department, Bureau of Public Roads. HPR Report No. 7, Part 1.
3. ACI 318-14 criteria for computing instantaneous deflections10.14359/51689726 ↗
4. Reevaluation of deflection prediction for concrete beams reinforced with steel and fiber-reinforced polymer bars10.1061/(ASCE)0733-9445(2005)131:5(752) ↗
5. Instantaneous and long-time deflections of reinforced concrete beams under working loads
6. Simplified computations for effective moment of inertia Ie and minimum thickness to avoid deflection computations
7. Control of beam deflections by allowable span-depth ratios
8. Effect of reinforcement ratio on the effective moment of inertia of reinforced concrete beams
9. Development of a model for the effective moment of inertia of one-way reinforced concrete elements
10. Improvement of the ACI method for calculation of deflections of reinforced concrete beams
11. Akmaluddin, A., and Thomas, C. (2006). Experimental verification of effective moment of inertia used in the calculation of reinforced concrete beam deflection. Int. Civ. Eng. Conf., 89–98.
12. Effective moment of inertia for calculating deflections of concrete members containing steel reinforcement and fiber-reinforced polymer reinforcement
13. Shrinkage restraint and loading history effects on deflections of flexural members
14. Effective moment of inertia of reinforced medium strength concrete beams
15. Prediction of effective moment of inertia for hybrid FRP-steel reinforced concrete beams using the genetic algorithm10.29252/nmce.2.1.15 ↗
16. Statistical evaluation of minimum thickness provisions for slab deflection control10.14359/51706926 ↗
17. Service load deflection of tilt-up concrete wall panels10.1139/cjce-2017-0319 ↗
18. Comparison of existing approaches for computing deflection of reinforced concrete10.14359/51718072 ↗
19. ACI Committee 318 (2015). Building Code Requirements for Structural Concrete (ACI 318M-14) and Commentary (ACI 318RM-14), American Concrete Institute.
20. Park, R., and Paulay, T. (1975). Reinforced Concrete Structures, Wiley.10.1002/9780470172834 ↗