Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Ahmed A. Eisa"'
Autor:
Mohamed H. El-Feky, Alaa A. Elsisi, Gouda A. Mohamed, Ahmed S. Eisa, Martina Zeleňáková, Dušan Katunský
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03375- (2024)
In this study, the structural performance of reinforced concrete frames strengthened with external post-tension tendons was investigated. An experimental study was performed to investigate the failure modes and generate the data required to validate
Externí odkaz:
https://doaj.org/article/c7cb6f1141b744ea914258d67d65bb45
Publikováno v:
Advances in Mechanical Engineering, Vol 16 (2024)
Flexural behavior of a concrete slab system with an optimal weight-to-strength ratio comprising layered and hollow-core slab structures was investigated using two-layered slabs with hollow cores (LS/HCS). Six slabs with dimensions of 180, 450, and 16
Externí odkaz:
https://doaj.org/article/09f49bde5f1f4a73b5d248529e618a53
Publikováno v:
Frattura ed Integrità Strutturale, Vol 17, Iss 63, Pp 134-152 (2023)
A new technique of Layered Hollow Core Slab (LHCS) has been used to obtain a slab with an optimum weight-to-strength ratio. Specimens with a 90 mm top layer of High Strength Concrete (HSC) and a 90 mm bottom layer of Lightweight Aggregate Concrete (L
Externí odkaz:
https://doaj.org/article/6ca6a05138ea4c0ba4fd437738b65aab
Publikováno v:
Heliyon, Vol 9, Iss 7, Pp e17674- (2023)
Recently, the demand for strengthening and rehabilitation of existing RC structures has increased due to the corrosion of internal steel reinforcement, variations in temperature, and increasing loading. As a result, several experimental studies have
Externí odkaz:
https://doaj.org/article/44c0f38d26ef4ce397798eb560eb7be8
Publikováno v:
Infrastructures, Vol 9, Iss 3, p 52 (2024)
In recent years, the alarming number of terrorist attacks has highlighted the critical need for extensive research aimed at fortifying structures against explosion-induced loads. However, the insufficient energy absorption and brittleness of conventi
Externí odkaz:
https://doaj.org/article/43101972e0d4498694cb9b3a857d493e
Publikováno v:
Buildings, Vol 14, Iss 1, p 29 (2023)
This study aimed to evaluate the static response of prestressed reinforced concrete beams strengthened in their flexure and shear properties using different strengthening techniques, steel plates, and externally bonded woven carbon fiber fabric (WCFF
Externí odkaz:
https://doaj.org/article/c7920cb063b94f4da6e71d0bfcb41524
Enhancement of blast resistance of R.C beams using micro/nano silica in the presence of steel fibers
Publikováno v:
Frattura ed Integrità Strutturale, Vol 15, Iss 57, Pp 259-280 (2021)
The study investigates the effect of Micro/Nano silica and steel fibers on improving the dynamic response of R.C beams, using the ABAQUS/Explicit dynamic analysis. According to the results of Magnusson and Hallgren's experimental investigation, the F
Externí odkaz:
https://doaj.org/article/6e3fae60d82b4e149da36c28d30c024a
Publikováno v:
Buildings, Vol 13, Iss 4, p 856 (2023)
Due to the depletion of natural aggregates and raw materials for contemporary construction, the construction and demolition waste existing in old concrete structures is an imperative problem. Cutting down on exploiting natural aggregates and reusing
Externí odkaz:
https://doaj.org/article/77f71294a9c24956bfc6d7d2aa1bbf1e
Publikováno v:
Infrastructures, Vol 7, Iss 12, p 170 (2022)
Geopolymer concrete is concrete made from industrial materials, such as fly ash, GGBS, silica fume, and metakaolin, used as a cement alternative. In this study, geopolymer concrete will be based on fly ash as a binder material, alkaline activators of
Externí odkaz:
https://doaj.org/article/82234d0fc56b4e2c9dc028fae7f1fc6c
Publikováno v:
Buildings, Vol 12, Iss 6, p 789 (2022)
The objective of the research is to improve the structural behavior of reinforced concrete (RC) T–beams by applying various techniques of external pre-stressing tendons, thus enhancing the load-carrying capacities and raising the resistance to appl
Externí odkaz:
https://doaj.org/article/28da2d86daf844b08053f99be553837b