Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements
This paper provides a critical probabilistic evaluation of shear strength design code provisions for reinforced concrete (RC) beams with shear reinforcements under different strength combinations of steel reinforcements and concrete. Based on the modified compression field theory (MCFT), a probabili...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/161838 |
| _version_ | 1824454048001032192 |
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| author | Yu, Bo Sang, Bujiu Tao, Xiaolei Li, Bing |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yu, Bo Sang, Bujiu Tao, Xiaolei Li, Bing |
| author_sort | Yu, Bo |
| collection | NTU |
| description | This paper provides a critical probabilistic evaluation of shear strength design code provisions for reinforced concrete (RC) beams with shear reinforcements under different strength combinations of steel reinforcements and concrete. Based on the modified compression field theory (MCFT), a probabilistic shear strength model for RC beams with shear reinforcements was proposed by taking into account the influences of contribution ratio for shear strength between concrete and stirrup, constitutive law of cracked concrete, and uncertainty in influencing coefficient of shear reinforcement. Then the accuracy and applicability of three typical shear strength design code provisions under different strength combinations of steel reinforcements and concrete were evaluated based on the confidence interval determined by the proposed probabilistic shear strength model. Meanwhile, the influences of material strength of steel reinforcements and concrete on confidence level of three typical shear strength design code provisions were also investigated. Finally, three typical shear strength design code provisions for RC beams were modified to improve the computational accuracy based on the characteristic values of correction factor under different strength combinations of steel reinforcements and concrete. |
| first_indexed | 2025-02-19T03:16:07Z |
| format | Journal Article |
| id | ntu-10356/161838 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:16:07Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1618382022-09-21T05:33:58Z Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements Yu, Bo Sang, Bujiu Tao, Xiaolei Li, Bing School of Civil and Environmental Engineering Engineering::Civil engineering Reinforced Concrete Beam Probabilistic Shear Strength Model This paper provides a critical probabilistic evaluation of shear strength design code provisions for reinforced concrete (RC) beams with shear reinforcements under different strength combinations of steel reinforcements and concrete. Based on the modified compression field theory (MCFT), a probabilistic shear strength model for RC beams with shear reinforcements was proposed by taking into account the influences of contribution ratio for shear strength between concrete and stirrup, constitutive law of cracked concrete, and uncertainty in influencing coefficient of shear reinforcement. Then the accuracy and applicability of three typical shear strength design code provisions under different strength combinations of steel reinforcements and concrete were evaluated based on the confidence interval determined by the proposed probabilistic shear strength model. Meanwhile, the influences of material strength of steel reinforcements and concrete on confidence level of three typical shear strength design code provisions were also investigated. Finally, three typical shear strength design code provisions for RC beams were modified to improve the computational accuracy based on the characteristic values of correction factor under different strength combinations of steel reinforcements and concrete. The financial support received from the National Natural Science Foundation of China (Grant Nos. 51668008 and 51738004), the Guangxi Science Fund for Distinguished Young Scholars (Grant No. 2019GXNSFFA245004) and the Natural Science Foundation of Guangxi Province (Grant No. 2018GXNSFAA281344) is gratefully acknowledged. 2022-09-21T05:33:57Z 2022-09-21T05:33:57Z 2022 Journal Article Yu, B., Sang, B., Tao, X. & Li, B. (2022). Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements. Engineering Structures, 256, 114027-. https://dx.doi.org/10.1016/j.engstruct.2022.114027 0141-0296 https://hdl.handle.net/10356/161838 10.1016/j.engstruct.2022.114027 2-s2.0-85126086647 256 114027 en Engineering Structures © 2022 Published by Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Reinforced Concrete Beam Probabilistic Shear Strength Model Yu, Bo Sang, Bujiu Tao, Xiaolei Li, Bing Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title | Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title_full | Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title_fullStr | Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title_full_unstemmed | Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title_short | Re-evaluation of shear strength design code provisions of RC beams with shear reinforcements |
| title_sort | re evaluation of shear strength design code provisions of rc beams with shear reinforcements |
| topic | Engineering::Civil engineering Reinforced Concrete Beam Probabilistic Shear Strength Model |
| url | https://hdl.handle.net/10356/161838 |
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