Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Performances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load
Abstract This research proposed the modular prefabricated permanent formwork system made of ultra-high-performance concrete (UHPC). Two kinds of modular formwork shapes were designed: the flat formwork and the ribbed. The experimental investigation on the axial compression performance of the composite columns that consist of the normal strength concrete (NSC) core and the modular UHPC permanent formwork was demonstrated. Compared with the flat formwork, the ribbed formwork exhibited better bonding with the NSC core. As observed from the test results, the composite column with the ribbed formwork presented a similar axial behavior as the NSC column with a slight improvement in ultimate loads. Therefore, the modular UHPC ribbed permanent formwork could be regarded as the additional cover to the conventional NSC column. In addition, the finite element analysis (FEA) model was also developed to simulate the composite columns numerically. The predicted capacities agreed with the experimental results, which validated the numerical models. The crack pattern estimated by the FEA model revealed that the interaction between the permanent formwork and the inner concrete introduced many tiny cracks to the concrete core. However, as protected by the UHPC permanent formwork, the overall durability of the composite columns can still be enhanced.
Performances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load
Abstract This research proposed the modular prefabricated permanent formwork system made of ultra-high-performance concrete (UHPC). Two kinds of modular formwork shapes were designed: the flat formwork and the ribbed. The experimental investigation on the axial compression performance of the composite columns that consist of the normal strength concrete (NSC) core and the modular UHPC permanent formwork was demonstrated. Compared with the flat formwork, the ribbed formwork exhibited better bonding with the NSC core. As observed from the test results, the composite column with the ribbed formwork presented a similar axial behavior as the NSC column with a slight improvement in ultimate loads. Therefore, the modular UHPC ribbed permanent formwork could be regarded as the additional cover to the conventional NSC column. In addition, the finite element analysis (FEA) model was also developed to simulate the composite columns numerically. The predicted capacities agreed with the experimental results, which validated the numerical models. The crack pattern estimated by the FEA model revealed that the interaction between the permanent formwork and the inner concrete introduced many tiny cracks to the concrete core. However, as protected by the UHPC permanent formwork, the overall durability of the composite columns can still be enhanced.
Performances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load
Yibo Yang (Autor:in) / Baixi Chen (Autor:in) / Yong Chen (Autor:in) / Huanyang Zhou (Autor:in) / Fucai Liu (Autor:in) / Xiangming Xie (Autor:in) / Junsheng Chen (Autor:in) / Wenying Guo (Autor:in) / Hengchang Wang (Autor:in)
2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Performances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load
| Springer Verlag | 2023
| Taylor & Francis Verlag | 2023
Properties of Concrete Columns Strengthened by CFRP-UHPC under Axial Compression
| DOAJ | 2023
ASSEMBLABLE DISPOSABLE SHUTTERING FOR CONSTRUCTING MODULAR FORMWORKS FOR MAKING CONCRETE FOUNDATIONS
| Europäisches Patentamt | 2018