Results 261 to 270 of about 1,645,202 (341)

Bond‐slip modeling for reinforced concrete beam‐column joints with plain reinforcement bars: Insights from numerical validation

Structural Concrete, EarlyView.
Abstract The previous seismic events indicated the vulnerability of old reinforced concrete (RC) structures against earthquakes due to the absence of seismic detailing and capacity design specifications in such buildings. In this context, beam‐column joints (BCJ) of the existing RC structures built before the 1970s have exhibited poor structural ...
Peyman Sabbahfar, José Melo, Humberto Varum, Hugo Rodrigues   +3 more
wiley   +1 more source

Pressure Analysis of Vertical-Wells with the Hydraulic Fracturing Assisted Water Injection in Low-Permeability Hydrogen and Carbon Reservoirs. [PDF]

ACS Omega
Yu Z, Liu S, Tang J, Zhu B, Dong S, Du J, Wu Z.   +6 more
europepmc   +1 more source

Innovative development and structural behavior of hollow columns using inflatable molds

Structural Concrete, EarlyView.
Abstract This study introduces a novel approach for constructing hollow columns using precast (PC) methods enhanced by inflatable air tubes as internal molds. The proposed method addresses practical challenges in conventional hollow column construction, such as limited constructability, high production cost, and interference between internal molds and ...
Soo Hyung Kim, Dohak Kim, Jeongun Lee, Yun Mook Lim   +3 more
wiley   +1 more source

Study on rock fracture mechanism and hydraulic fracturing propagation law of heterogeneous tight sandstone reservoir. [PDF]

PLoS One
Zhao H, Li W, Cai M, Ma B, Xie X, Zou L, Liu Y.   +6 more
europepmc   +1 more source

Performance enhancement of reinforced concrete columns using stainless steel and galvanized steel plates: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract This study introduces an innovative approach to strengthening defected reinforced concrete (RC) columns using externally bonded stainless steel and galvanized steel plates. Unlike conventional strengthening methods, this technique replaces traditional transverse stirrups with steel sheets, providing enhanced confinement and ductility.
Ahmed Hamoda, Khaled Sennah, Ramy I. Shahin, Aref A. Abadel, Mizan Ahmed, Mohamed Ghalla   +5 more
wiley   +1 more source

IMPACT OF REAL-LIFE ENVIRONMENTAL EXPOSURES ON REPRODUCTION: Evidence for reproductive health effects following exposure to hydraulic fracturing chemical mixtures. [PDF]

Reproduction
Siegel KR, Bérubé R, Day M, Heldman S, Daley C, Murray BR, Hecht R, Caron-Beaudoin É, Kassotis CD.   +8 more
europepmc   +1 more source

Flexural performance of concrete‐filled steel tubular beams with wood chip aggregate

Structural Concrete, EarlyView.
Abstract This study investigates the flexural performance of concrete‐filled steel tubular (CFST) beams with partial replacement of aggregates by wood chips (0%–25%) through experimental and numerical analysis. This study is novel in that it experimentally and numerically investigates the flexural behavior of CFST beams with partial replacement of ...
Mizan Ahmed, Mohamed Emara, Vipulkumar Ishvarbhai Patel, Wensu Chen, Xihong Zhang, Faiz Shaikh, Ahmed Hamoda   +6 more
wiley   +1 more source

Prediction of the Effects of Pulsating Hydraulic Fracturing on the Porous Structure and Permeability of Coal Based on NMR and AE Spectra. [PDF]

ACS Omega
Yu X, Cheng Z, Hong L, Zhao N, Chen A.
europepmc   +1 more source

Numerical Simulation Study on the Effect of Preinjected CO₂ on the Hydraulic Fracturing Behavior of Shale Oil Reservoirs. [PDF]

ACS Omega
Yu H, Ding Y, Wang Y, Zhou W.
europepmc   +1 more source

A National Study of the Associations between Hormonal Modulators in Hydraulic Fracturing Fluid Chemicals and Birth Outcomes in the United States of America: A County-Level Analysis. [PDF]

Environ Health Perspect
Poole EM, Boland MR.
europepmc   +1 more source