Results 51 to 60 of about 12,885 (226)

The shear strength of concrete beams hybrid-reinforced with GFRP bars and steel bars in main reinforcement without shear reinforcement

Curved and Layered Structures, 2022
The investigation of the structural performance of reinforced concrete members in the construction process has become a critical issue for Hybrid GFRP bars with steel bars.
Shoeib Ata El-kareim, Arafa Ahmed Noureldean, Sedawy Ahmed EL-sayed, EL-Hashmy Awad M.   +3 more
doaj   +1 more source

Shear Strength of Concrete Beams without Stirrups Made with Recycled Coarse Aggregate

Buildings, 2022
Eco-friendly concrete that considers waste material and requires less energy for production is in demand because it produces less carbon dioxide, reduces the consumption of raw material, and can be a cheaper option to conventional concrete.
Abdullah M. Sagheer, Sami W. Tabsh
doaj   +1 more source

Strip loading in reinforced concrete: Mechanical modeling and experimental validation

Structural Concrete, EarlyView.
Abstract Strip loading of reinforced concrete is a common problem in engineering practice. The concrete compressive strength at the load introduction can be several times higher than the uniaxial concrete compressive strength, which can be attributed to geometrical and passive confining stresses caused by load dispersion and reinforcement, respectively.
Fabian Morger, Albin Kenel, Walter Kaufmann   +2 more
wiley   +1 more source

Critical shear crack shapes in slender reinforced concrete beams with and without shear reinforcement

Structural Concrete, EarlyView.
Abstract The accurate prediction of the shear capacity of reinforced concrete underpins the efficient and safe design of concrete buildings and infrastructure. Disagreement remains about shear mechanisms and the modeling of shear resistance. For slender beams without shear reinforcement, critical shear crack (CSC) models have attracted interest.
Hasini C. Weerasinghe, Janet M. Lees
wiley   +1 more source

Concrete beams reinforced with longitudinal and transverse GFRP bars

Magazine of Civil Engineering
This research investigated experimentally and numerically the general behavior of six concrete beams reinforced with longitudinal and transverse bars made of Glass Fiber Reinforced Polymer (GFRP) or steel.
Shaysh A. Mohammed, AbdulMuttailb I. Said   +1 more
doaj   +1 more source

Effect of stirrup spacing on strengthening beams with insufficient shear capacity using innovative mechanical steel stitches

Structural Concrete, EarlyView.
Abstract This study investigates experimentally and analytically the effect of stirrup spacing variation on the behavior of reinforced beams in the 45°‐inclined innovative mechanical steel stitches (MSSs) application for the strengthening of reinforced concrete beams with insufficient shear capacity.
Ceyhun Aksoylu, Yusuf Uysal, Boğaçhan Başaran, Yasin Onuralp Özkılıç, Musa Hakan Arslan   +4 more
wiley   +1 more source

Seismic resilience timber connection-adoption of shape memory alloy tubes as dowels [PDF]

, 2017
This study investigates a novel timber dowel-type connection system using superelastic shape memory alloy (SMA) bar and tubes as dowels, in order to provide self-centering effect.
Andrawes, Araki, Araya, Carreras, Casciati, Casciati, Casciati, Chang, Desroches, DesRoches, Dolce, Duerig, Guo, Janke, Ma, Miyazaki, Moradi, Ozbulut, Porteous, Sepulveda, Speicher, Thelandersson, Torra, Youssef   +23 more
core   +2 more sources

Incremental upper bound modeling of concrete failures in timber‐concrete notched connections

Structural Concrete, EarlyView.
Abstract This paper introduces a novel theoretical framework for developing incremental upper bound solutions, which is applied to predict the response of two local concrete failures in timber‐concrete composite (TCC) decks with notched connections. The new approach enables a prediction of the capacity at the onset of failure as well as the entire post‐
Peter K. Rasmussen, Linh C. Hoang, Jesper H. Sørensen, Bent Feddersen   +3 more
wiley   +1 more source

Nonlinear analysis of flat post‐tensioned concrete slab–edge column connections

Structural Concrete, EarlyView.
Abstract This study presents nonlinear finite element analyses to investigate the punching shear behavior of unbonded post‐tensioned concrete flat slabs at slab‐edge column connections. A parametric analysis was conducted to evaluate the influence of four critical parameters on the punching shear resistance: the distribution of prestressing tendons ...
Igor Gonçalves, Ricardo Randi, Orlando M. Almeida, Elyson A. P. Liberati, Leandro M. Trautwein   +4 more
wiley   +1 more source

Composite wooden beams performance under short-term loading

Magazine of Civil Engineering
This paper presents an experimental and theoretical study of composite beams made of two balks connected by TGk dowel plates under short-term loading.
Isupov Sergei
doaj   +1 more source