| Autor: |
Zhi-Wei Cao, Hai-Bo Fang, Xin-Xu Ma, Shi-Qian Zhang, Xiong Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Results in Engineering, Vol 24, Iss , Pp 102635- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1230 |
| DOI: |
10.1016/j.rineng.2024.102635 |
| Popis: |
In addressing the fabrication challenges associated with precast shear walls arising from an excessive number of connection joints, a major innovation has been carried out for precast shear walls. The need for vertically distributed reinforcement connections is cancelled in the novel type of precast shear wall proposed in this paper. Then, a component hierarchy-based approach was introduced to counteract the reduced flexural bearing capacity from disconnected vertical reinforcements, accomplished by amplifying longitudinal reinforcements in boundary elements. Subsequently, two full-scale shear walls comprising one new precast specimen and one cast-in-site specimen were subjected to low cyclic lateral loading tests to assess the effectiveness of the component hierarchy-based design method. The experimental results yielded positive outcomes. The new precast specimen exhibited superior structural behavior in comparison to the cast-in-site specimen, manifesting a 4.0 % increase in capacity and an impressive 14 % enhancement in ductility ratio. However, it is worth noting that the structural hierarchy-based design method is more intricate and necessitates further investigation. Consequently, a structural hierarchy-based design method was proposed to address the aforementioned complexities. Moreover, a nonlinear time history analysis aimed to provide additional evaluation was conducted on a real 20-storey engineering structure using the structural analysis software ETABS. The inter-story drift ratio of both analytical models were not greater than 1/120 under rarely earthquakes, which substantiates the accuracy and soundness of the structural hierarchy-based design method. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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