Results 81 to 90 of about 1,831,060 (363)

Enhancing the flexural capacity of RC beams under various loading rates through strengthening with ultra-high-performance fiber-reinforced concrete

Developments in the Built Environment
This study investigates the enhancement of impact resistance in reinforced concrete (RC) beams using ultra-high-performance fiber-reinforced concrete (UHPFRC).
Doo-Yeol Yoo, Booki Chun, Jinsoo Choi, Kyung-Hwan Min, Hyun-Oh Shin   +4 more
doaj   +1 more source

Experimental Study on Shear Strengthening of RC Beams with an FRP Grid-PCM Reinforcement Layer

Applied Sciences, 2019
This paper investigates the shear strengthening effect of a number of reinforced concrete (RC) beams strengthened by a reinforcement layer which combines carbon fiber reinforced polymer (CFRP) grid and polymer cement mortar (PCM). A total of ten RC beams,
Rui Guo, Lianheng Cai, Shinichi Hino, Bo Wang   +3 more
doaj   +1 more source

Parametric study of the load-bearing mechanisms in RC beam-grids to resist progressive collapse [PDF]

, 2019
Recently, several structural failures demonstrated the disastrous consequences of progressive collapse and raised the awareness of the engineering community.
Botte, Wouter, Caspeele, Robby, Droogné, Didier   +2 more
core  

Shear capacity in concrete beams reinforced by stirrups with two different inclinations [PDF]

, 2014
A model for the estimation of shear capacity in Reinforced Concrete (RC) beams with web reinforcement is provided by introducing a generalization of classical plastic Nielsen’s model, which is based on the variable-inclination stress-field approach.
COLAJANNI, Piero, LA MENDOLA, Lidia, Mancini, G, Recupero, A, Spinella, N.   +4 more
core   +1 more source

Solvent‐Free Manufacturing of Multifunctional Gas Diffusion Electrode Architectures for Enhanced CO2 Conversion From Low‐Concentration Streams

Advanced Functional Materials, EarlyView.
A tandem gas diffusion electrode (GDE) leveraging hierarchically engineered microgranules enables efficient CO2 electroreduction under dilute CO2 conditions. A key innovation lies in the solvent‐free precision assembly of metal–organic‐frameworks, carbon nanotubes, and copper nanoparticles.
Kai‐Jen Wu, Carter Racine, Ahmed Badreldin, Shengyao Wang, Zongsu Han, Hong‐Cai Zhou, Ying Li, Heng Pan   +7 more
wiley   +1 more source

Strengthening RC beam–column connections with FRP strips [PDF]

Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2009
Reinforced concrete connections, designed prior to the implementation of earthquake design standards, may be vulnerable to shear failure during a seismic attack. Addition of externally bonded fibre-reinforced polymer (FRP) composites can enhance not just the shear capacity but the deformation and energy absorption capacity of the connection.
Shrestha, Rijun, Smith, Scott T., Samali, Bijan (R17646)   +2 more
openaire   +3 more sources

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source

Stressing State Analysis of Reinforcement Concrete Beams Strengthened with Carbon Fiber Reinforced Plastic

International Journal of Concrete Structures and Materials, 2020
This paper investigated the working behavior characteristics of six reinforcement concrete (RC) beams subjected to bending based on the numerical shape function (NSF) method and structural stressing state theory.
Jie Huang, Jun Shi, Hengheng Xiao, Jiyang Shen, Baisong Yang   +4 more
doaj   +1 more source

Shear strengthening of RC beams with NSM CFRP laminates : experimental research and analytical formulation [PDF]

, 2013
The effectiveness of the NSM technique with CFRP laminates for the shear strengthening of RC beams with a certain percentage of steel stirrups was assessed by an extensive experimental research.
Barros, Joaquim A. O., Dias, Salvador J. E.   +1 more
core   +1 more source

RC beam strengthening using precast RC plate bonding technique

Građevinar, 2015
The behaviour of RC beams strengthened with precast RC plates of rectangular and U cross-section is studied in the paper. An experimental investigation was conducted to assess effectiveness of strengthening with precast plates. The investigation was supported with the 2-D nonlinear finite element analysis (NLFEA).
Ali Demir, Muhiddin Bağcı, Muhammed Tekin, Ayhan Nuhoğlu   +3 more
openaire   +1 more source