Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading
In order to solve the limitations of masonry structures, such as poor seismic performance, complicated construction techniques, and energy wastage of wall materials, a new type of confined autoclaved fly-ash-brick wall was proposed and its mechanical performance was analyzed. An axial compression te...
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MDPI AG
2021-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/22/10560 |
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| author | Bo Wen Lu Zhang Ditao Niu Guanyi Gao Yongkang Kang Daming Luo |
| author_facet | Bo Wen Lu Zhang Ditao Niu Guanyi Gao Yongkang Kang Daming Luo |
| author_sort | Bo Wen |
| collection | DOAJ |
| description | In order to solve the limitations of masonry structures, such as poor seismic performance, complicated construction techniques, and energy wastage of wall materials, a new type of confined autoclaved fly-ash-brick wall was proposed and its mechanical performance was analyzed. An axial compression test of autoclaved fly-ash-brick short columns was carried out to analyze the failure mode and obtain the constitutive parameters of the brick. Meanwhile, a low-cyclic loading test of an assembly using an autoclaved fly-ash-brick wall was carried out to prove the correctness of the numerical model. Under multiple influencing parameters, the seismic performance of the assembly of autoclaved fly-ash-brick walls was analyzed by a numerical-simulation method. The results show that (1) the seismic performance of the assembled autoclaved fly-ash-brick walls is better than that of cast-in-place masonry walls; (2) low-strength mortar leads to premature cracking, which is unfavorable to earthquake resistance of the walls; and (3) the bearing capacity of the wall is increased and then decreased with the increase of the vertical compressive stress, so the number of layers of brick masonry structural should be limited. In addition, some construction measures were proposed to improve the mechanical performance of assembled autoclaved fly-ash-brick walls. |
| first_indexed | 2024-03-10T05:43:55Z |
| format | Article |
| id | doaj.art-2205de4fa6d641ed8305cddd7fbab0df |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T05:43:55Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2205de4fa6d641ed8305cddd7fbab0df2023-11-22T22:15:34ZengMDPI AGApplied Sciences2076-34172021-11-0111221056010.3390/app112210560Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic LoadingBo Wen0Lu Zhang1Ditao Niu2Guanyi Gao3Yongkang Kang4Daming Luo5Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, ChinaSchool of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaSchool of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaSchool of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaSchool of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaSchool of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaIn order to solve the limitations of masonry structures, such as poor seismic performance, complicated construction techniques, and energy wastage of wall materials, a new type of confined autoclaved fly-ash-brick wall was proposed and its mechanical performance was analyzed. An axial compression test of autoclaved fly-ash-brick short columns was carried out to analyze the failure mode and obtain the constitutive parameters of the brick. Meanwhile, a low-cyclic loading test of an assembly using an autoclaved fly-ash-brick wall was carried out to prove the correctness of the numerical model. Under multiple influencing parameters, the seismic performance of the assembly of autoclaved fly-ash-brick walls was analyzed by a numerical-simulation method. The results show that (1) the seismic performance of the assembled autoclaved fly-ash-brick walls is better than that of cast-in-place masonry walls; (2) low-strength mortar leads to premature cracking, which is unfavorable to earthquake resistance of the walls; and (3) the bearing capacity of the wall is increased and then decreased with the increase of the vertical compressive stress, so the number of layers of brick masonry structural should be limited. In addition, some construction measures were proposed to improve the mechanical performance of assembled autoclaved fly-ash-brick walls.https://www.mdpi.com/2076-3417/11/22/10560fly-ash-brickaxial compression testlow-cyclic loading testnumerical simulationmechanical performance |
| spellingShingle | Bo Wen Lu Zhang Ditao Niu Guanyi Gao Yongkang Kang Daming Luo Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading Applied Sciences fly-ash-brick axial compression test low-cyclic loading test numerical simulation mechanical performance |
| title | Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading |
| title_full | Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading |
| title_fullStr | Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading |
| title_full_unstemmed | Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading |
| title_short | Mechanical Performance of Confined Autoclaved Fly-Ash-Brick Masonry Walls under Cyclic Loading |
| title_sort | mechanical performance of confined autoclaved fly ash brick masonry walls under cyclic loading |
| topic | fly-ash-brick axial compression test low-cyclic loading test numerical simulation mechanical performance |
| url | https://www.mdpi.com/2076-3417/11/22/10560 |
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