Results 61 to 70 of about 1,214 (164)

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 567-580, June 2026.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source

Lap splice performance of textured epoxy-coated zero-magnetic steel bars in concrete beams

Journal of Asian Architecture and Building Engineering
With the development of precision in magnetic measurement technologies, environmental residual magnetism can significantly affect detection accuracy. Conventional steel bars in reinforced concrete structures are the main source of additional magnetic ...
Kai Shen, Yuan Tian, Yi Zheng, Zeyang Sun, Hong Zhu   +4 more
doaj   +1 more source

Mechanical Behavior of Grouted Sleeve Butt and Lap Joints with Anti-Deflection Measures Under Uniaxial Tension and High-Stress Cyclic Loading

Applied Sciences
To compare the mechanical performance differences between sleeve grouting lap and butt joints, a total of 41 lap joints, including 27 standard lap joints and 14 anti-deflection lap joints, and 20 butt joints were subjected to tensile and high-stress ...
Qiong Yu, Zuorui Wen, Ziming Tang, Hua Wei, Fangjun Zheng, Zhi Zhang, Zhenhai Chen, Jiaqiu Sun   +7 more
doaj   +1 more source

Splicing behaviour of GFRP, BFRP, and steel bars in reinforced concrete beams

Discover Applied Sciences
Fiber-reinforced-polymers (FRPs) have gained popularity as a substitute for conventional steel bars in reinforced concrete, yet there remain specific knowledge gaps in the behavior of lap-spliced glass and basalt bars.
Hala Mamdouh, Ahmed Hassan, Nasr Zenhom, Amr Ali, O. A. Mohamed, Amany Salman   +5 more
doaj   +1 more source

Lap-slip model of rebar-to-concrete in RC/ECC/UHPC based on GA-BP neural network

Case Studies in Construction Materials
Rebar lap splicing is a widely used method of reinforcement connection in precast concrete structures, and the lap-slip model serves as an important prerequisite for conducting detailed mechanical calculations of reinforced concrete lap splice members ...
Jin Guo, Qiong Wu, Longpan Sun, Hao Sheng   +3 more
doaj   +1 more source

Optimizing Lap Splice Lengths for GFRP and BFRP Bars in High-Strength Concrete Beams: An Experimental Study

Journal of Composites Science
In this paper, the bond performance of tensile lap-spliced Glass and Basalt Fiber-Reinforced Polymer bars is investigated in high-strength concrete. Eighteen large-scale GFRP-reinforced concrete beams were fabricated and subjected to four-point loading. Key parameters explored included bar diameter and splice length for both GFRP and BFRP reinforcement.
Ali J. Nouri, Saad K. Essa
openaire   +1 more source

Flexural performance of rapid-hardening concrete (RHC) beams with tension lap splice

Beni-Suef University Journal of Basic and Applied Sciences
Background Rapid-hardening concrete (RHC) is a specialized type of concrete that gains strength at an accelerated rate, allowing for faster construction and reduced project timelines.
Mohamed Hussein El Fakhrany, Amal el-Zamrawi, Wael Ibrahim, Alaa Sherif   +3 more
doaj   +1 more source

Flexural Strengthening of Reinforced Concrete Beams with Substandard Tension Lap Splices Using a Novel Pre-stressing Technique

International Journal of Concrete Structures and Materials
Sudden failure of reinforced concrete (RC) beams with substandard tension lap splices due to low resistance to flexure is a critical issue that needs to be addressed. Accordingly, a novel pre-stressing technique is presented in this paper, which offers a
Roba Osman, Ahmed Elkhouly, Boshra Eltaly, Mohamed H. Zakaria   +3 more
doaj   +1 more source

Optimizing Rebar Consumption and Cutting Waste in Column Reinforcement: Integrated Mechanical Couplers and a Special-Length-Priority Minimization Algorithm

Buildings
The construction of reinforced concrete (RC) structures inevitably consumes an excessive number of rebars, leading to significant cutting waste and carbon emissions.
Daniel Darma Widjaja, Sunkuk Kim, Dong-Jin Kim   +2 more
doaj   +1 more source

Combined mechanical couplers and special-length-priority algorithm for reducing rebar consumption and cutting waste of beam reinforcement

Results in Engineering
The surging demand for reinforced concrete buildings has led to excessive consumption of rebars, resulting in substantial rebar-cutting waste and greenhouse gas emissions. Various approaches have been explored to mitigate this issue, including lap-splice
Daniel Darma Widjaja, Chang-Young Park, Chang-Ho Choi, Sunkuk Kim   +3 more
doaj   +1 more source