Results 81 to 90 of about 5,943,676 (268)

Experimental and numerical investigation on the flexural response of GFRP‐reinforced SFRC beams

Structural Concrete, EarlyView.
Abstract In order to address the challenges related to the deformability and ductility of concrete beams reinforced with fiber reinforced polymer (FRP) bars, an alternative solution involving steel fiber reinforced concrete (SFRC) has been proposed. In the present study, a total of seven beams—including one steel‐reinforced reference beam and six glass
İsmet Vapur, İlker Fatih Kara, Ashraf Fawzy Ashour   +2 more
wiley   +1 more source

Structural testing and analytical model of Reinforced Concrete (RC) prisms with 3D‐printed concrete permanent formwork under compressive loading

Structural Concrete, EarlyView.
Abstract The implementation of traditional steel reinforcement in 3D concrete printed structures is a major challenge. Although 3D‐printed structures may be used as formwork, the knowledge about their structural contribution is limited. This research aims to experimentally evaluate the structural performance of reinforced concrete prisms with 3D ...
Luis M. de la Flor Juncal, Allan Scott, Don Clucas, Giuseppe Loporcaro   +3 more
wiley   +1 more source

Finite element analysis of FRP-strengthened RC beams [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2004
This paper presents a non-linear finite element analysis of reinforced concrete beam strengthened with externally bonded FRP plates. The finite element modeling of FRP-strengthened beams is demonstrated. Concrete and reinforcing bars are modeled together
Teeraphot Supaviriyakit, Amorn Pimanmas, Phuwanat Pornpongsaroj   +2 more
doaj  

Achieving sustainable and durable concrete using high‐volume SiO2: Engineering properties, environmental and economic benefits

Structural Concrete, EarlyView.
Abstract This study explores the potential of high‐volume amorphous silica (SiO2) replacement for ordinary Portland cement (OPC) in concrete to reduce carbon emissions. Amorphous SiO2, such as silica fume (SF) and CO2 mineralization‐produced Si‐rich gel, offers superior properties to concrete but is under‐researched for its use in concrete with high ...
Xinlin Ji, Lijie Chen, R. K. L. Su
wiley   +1 more source

Delamination between wood and externally bonded FRP due to swelling and shrinkage

Journal of Wood Science
Timber members are often strengthened with bonded FRP sheets for a better mechanical performance. For these members, eigenstress can develop in their interfaces due to swelling and shrinkage of the member, which can cause cracks and delamination ...
Jing-Wei Feng, Chuang Yang, Yi-fan Li, Zhongwen Zhang   +3 more
doaj   +1 more source

Research on the mechanical properties and variability of fiber reinforced polymer rebars after high temperatures

Nantong Daxue xuebao. Ziran kexue ban
To understand the influence of high temperatures on the mechanical properties of fiber reinforced polymer(FRP) rebars, a large batch of shear and compression tests were conducted after high temperatures to study the effects of different factors such as ...
XIE Qinghai; ZENG Jie; WEN Zheming; ZHANG Haijin; ZONG Zhongling
doaj   +1 more source

Effects of existing cracks on FRP-to-concrete interfacial behavior

, 2017
The concrete structures which need to be strengthened by externally bonded (EB) FRP normally have existing cracks. In order to study the effects of the existing cracks on the bond slip relationship, an experimental program of single shear pull-out tests ...
Jiang, Cheng (R20575), Wan, Baolin, Wu, Yufei   +2 more
core  

Continental‐wide prioritization of protected areas to address global and habitat‐specific goals for avian biodiversity conservation

Conservation Biology, EarlyView.
Abstract The United Nations and European Union have set ambitious conservation goals to halt and reverse declines in biodiversity by protecting 30% of land and sea areas by 2030. Effective conservation planning requires evidence‐based spatial prioritization to maximize the coverage of species within designated protected areas.
Yanjie Xu, Diego Pavón‐Jordán, Tyler Hallman, Tristan R. M. Bakx, Lluís Brotons, Sergi Herrando, Alison Johnston, Brett K. Sandercock, Thomas Sattler, Alaaeldin Soultan, Vitalie Ajder, Dawn E. Balmer, Brian Burke, Thiago Cavalcante, Tomasz Chodkiewicz, Ruud P. B. Foppen, Anthony D. Fox, Verena Keller, Tatiana Kornienko, Peter Knaus, Heini Kujala, Åke Lindström, Qenan Maxhuni, Károly Nagy, Ingar Jostein Øien, Tomas Pärt, Dimitrije Radišić, Draženko Z. Rajković, Iván Ramirez, Paul Shimmings, Karel Šťastný, Thomas Vikstrøm, Tomasz Wilk, Aleksi Lehikoinen   +33 more
wiley   +1 more source

Thermo-mechanical compatibility of CFRP versus steel reinforcement for concrete at high temperature [PDF]

, 2014
Optimization of the design of concrete structures has become a driver for the use of nonconventional reinforcing materials. One example of this is the emerging use of non-corrosive, highstrength, and lightweight carbon fibre reinforced polymer (CFRP ...
Bisby, Luke A., Terrasi, Giovanni P., Maluk, C., Maluk, Cristian, Bisby, L. A., Terrasi, G. P.   +5 more
core  

Bond Strength of composite CFRP reinforcing bars in timber [PDF]

, 2015
The use of near-surface mounted (NSM) fibre-reinforced polymer (FRP) bars is an interesting method for increasing the shear and flexural strength of existing timber members.
Luca Righetti, Antonio Borri, Borri, Antonio, Marco Corradi, Corradi, Marco, Righetti, Luca   +5 more
core   +1 more source