Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact
Building structure regularly needs reinforcement due to damage, specification requirements, and functional changes; carbon fiber reinforced polymer (CFRP) is widely used in structural reinforcement due to its high strength, lightweight, good corrosion resistance and easy construction. The regular sq...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-06-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/13/3591 |
| _version_ | 1797411672013406208 |
|---|---|
| author | Khalil AL-Bukhaiti Liu Yanhui Zhao Shichun Hussien Abas Dong Aoran |
| author_facet | Khalil AL-Bukhaiti Liu Yanhui Zhao Shichun Hussien Abas Dong Aoran |
| author_sort | Khalil AL-Bukhaiti |
| collection | DOAJ |
| description | Building structure regularly needs reinforcement due to damage, specification requirements, and functional changes; carbon fiber reinforced polymer (CFRP) is widely used in structural reinforcement due to its high strength, lightweight, good corrosion resistance and easy construction. The regular square section reinforced concrete frame elements strengthened by CFRP material are taken as the research object. The dynamic response of CFRP to reinforced concrete elements under unequal lateral impact was discussed. This technical paper demonstrates that the test elements are subject to the bending failure mode, and the impact point and the near impact point support are severely damaged areas; the transversely wrapped elements are more abruptly broken, and the longitudinal wrapping elements and the number of wrapping layers can effectively reduce the level of damage. Analysis of the impact, deflection, and strain time history curves obtained in the test show that the wrapping mode and the number of layers have less influence on the impact force peak; the longitudinally wrapped elements and the plateau segment take longer. Dynamic equilibrium principle equation was proposed based on the experimental results. The horizontal partition plateau segment fluctuates greatly; the number of vertical wrap layers increases the plateau value. The larger the number of layers, the smaller the deflection caused by the impact. The longitudinal wrapping can effectively transmit the force. |
| first_indexed | 2024-03-09T04:49:32Z |
| format | Article |
| id | doaj.art-11b2692f63d9441086e1adcc9409366b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:49:32Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-11b2692f63d9441086e1adcc9409366b2023-12-03T13:11:53ZengMDPI AGMaterials1996-19442021-06-011413359110.3390/ma14133591Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral ImpactKhalil AL-Bukhaiti0Liu Yanhui1Zhao Shichun2Hussien Abas3Dong Aoran4School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaBuilding structure regularly needs reinforcement due to damage, specification requirements, and functional changes; carbon fiber reinforced polymer (CFRP) is widely used in structural reinforcement due to its high strength, lightweight, good corrosion resistance and easy construction. The regular square section reinforced concrete frame elements strengthened by CFRP material are taken as the research object. The dynamic response of CFRP to reinforced concrete elements under unequal lateral impact was discussed. This technical paper demonstrates that the test elements are subject to the bending failure mode, and the impact point and the near impact point support are severely damaged areas; the transversely wrapped elements are more abruptly broken, and the longitudinal wrapping elements and the number of wrapping layers can effectively reduce the level of damage. Analysis of the impact, deflection, and strain time history curves obtained in the test show that the wrapping mode and the number of layers have less influence on the impact force peak; the longitudinally wrapped elements and the plateau segment take longer. Dynamic equilibrium principle equation was proposed based on the experimental results. The horizontal partition plateau segment fluctuates greatly; the number of vertical wrap layers increases the plateau value. The larger the number of layers, the smaller the deflection caused by the impact. The longitudinal wrapping can effectively transmit the force.https://www.mdpi.com/1996-1944/14/13/3591CFRPRC elementsunequal trans-lateral impactfailure modewrapping methodCFRP layer number |
| spellingShingle | Khalil AL-Bukhaiti Liu Yanhui Zhao Shichun Hussien Abas Dong Aoran Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact Materials CFRPRC elements unequal trans-lateral impact failure mode wrapping method CFRP layer number |
| title | Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact |
| title_full | Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact |
| title_fullStr | Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact |
| title_full_unstemmed | Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact |
| title_short | Dynamic Equilibrium of CFRP-RC Square Elements under Unequal Lateral Impact |
| title_sort | dynamic equilibrium of cfrp rc square elements under unequal lateral impact |
| topic | CFRPRC elements unequal trans-lateral impact failure mode wrapping method CFRP layer number |
| url | https://www.mdpi.com/1996-1944/14/13/3591 |
| work_keys_str_mv | AT khalilalbukhaiti dynamicequilibriumofcfrprcsquareelementsunderunequallateralimpact AT liuyanhui dynamicequilibriumofcfrprcsquareelementsunderunequallateralimpact AT zhaoshichun dynamicequilibriumofcfrprcsquareelementsunderunequallateralimpact AT hussienabas dynamicequilibriumofcfrprcsquareelementsunderunequallateralimpact AT dongaoran dynamicequilibriumofcfrprcsquareelementsunderunequallateralimpact |