نتایج جستجو برای: aci 318

تعداد نتایج: 6722  

Journal: :Eng. Appl. of AI 2014
Min-Yuan Cheng Minh-Tu Cao

This study proposes a novel artificial intelligence (AI) model to estimate the shear strength of reinforcedconcrete (RC) deep beams. The proposed evolutionary multivariate adaptive regression splines (EMARS) model is a hybrid of multivariate adaptive regression splines (MARS) and artificial bee colony (ABC). In EMARS, MARS addresses learning and curve fitting and ABC implements optimization to ...

Journal: :Buildings 2023

To study the performance of UHPFRC continuous deep beams with openings, experimental and numerical investigations have been carried out. The test program included seven in addition to one similar solid beam. variables were ratio transverse reinforcement position, height, width opening. results showed that failure mode two-span depends mainly on position size opening shear span. occurs diagonal ...

Journal: :E3S web of conferences 2021

Current design codes and specifications allow for part of the bonded flexure tension reinforcement to be distributed over an effective flange width when T-beams' flanges are in tension. This study presents experimental numerical investigation on reinforced concrete flanged section's flexural behavior is laterally distributed. To achieve goals study, analysis using finite element method was cond...

Journal: :Jurnal Teknik Sipil (Fakultas Teknik Universitas Katolik Indonesia Atma Jaya Yogyakarta) 2021

Keruntuhan geser pada balok beton bertulang tanpa tulangan merupakan keruntuhan yang sangat getas. Sejumlah besar penelitian eksperimental mengenai menunjukkan fakta bahwa kegagalan proses kompleks dan adalah efek dari berbagai parameter memberikan pengaruh signifikan, diantaranya kuat tekan (f′c), rasio bentang geser-tinggi efektif (a/d), longitudinal (), tinggi penampang (d). Oleh karena itu,...

Journal: :Applied sciences 2022

In the current manuscript, we aimed to evaluate application of aerated concrete blocks for construction single-family homes in Guayaquil, Ecuador, through a comparison with conventional materials. The design structural elements was carried out according NEC-2015 and ACI 318-14 standards, which 36% reduction dead load structure achieved by using masonry house. With life cycle analysis, quantific...

Journal: :Hormigón y Acero 2023

In the design and assessment of precast concrete beams with a slab cast on top, namely composite beams, engineers still face in practice unsolved shear-related issues, such as contribution to shear strength slab, be considered formulations or influence interface between concretes behaviour. present research, 69 tests were performed monolithic rectangular T-shaped cross-section, without transver...

Journal: :Lecture notes in civil engineering 2023

Abstract Rectangular columns used in flat-slab structures run the risk of punching shear damage due to stress concentrations, especially when bending moments and vertical forces act together at connections. Using finite element analysis method, existing experiments are numerically simulated using 3D modeling software ABAQUS, describe cracking behavior concrete damaged plasticity model. The accu...

Journal: :Monografías de Actualización de la Sociedad Española de Medicina y Cirugía del Pie y Tobillo 2017

Journal: :Osteoarthritis and cartilage 2011
J D Harris R A Siston R H Brophy C Lattermann J L Carey D C Flanigan

OBJECTIVE To determine and compare failure, re-operation, and complication rates of all generations and techniques of autologous chondrocyte implantation (ACI). METHODS A systematic review of multiple medical databases was performed according to PRISMA guidelines. Levels I-IV evidence were included. Generations of ACI and complications after ACI were explicitly defined. All subject and defect...

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