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Showing 1 to 12 of 12 for “"Concrete behavior"”.
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Efeitos térmicos em estruturas maciças de concreto
This work studies thermal effects on mass concrete structures, considering the incremental construction of the structure. Particular attention is given to problem of thermal stress which are find in gravity concrete dams, caused, mainly, by high increases of temperature and following gradual …
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ANALYSIS OF BRAZILIAN SPLIT CYLINDER USING THE STATE BASED PERIDYNAMIC LATTICE MODEL
Concrete members deform discontinuously in the form of cracks and fracture. Continuum mechanics, which has dominated the field of solid mechanics over the years, does not handle such discontinuities. A material, as defined by continuum mechanics is that which is continuous and fills the space it …
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Two-Direction Cracking Shear-Friction Membrane Model for Finite Elment Analysis of Reinforced concrete
… finite element analysis of cracked reinforced concrete that provide reduced shear stiffness but do not limit shear strength. In addition typical models are not based on the actual physical behavior of shear transfer across cracks by shear friction recognized in the ACI Building Code and present …
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Numerical analyses of long carbon fiber reinforced concrete panels exposed to dynamic loading
… performance of long carbon fiber reinforced concrete experimentally and numerically. Experimental tests were conducted on plain concrete (PC), reinforced concrete, and four different types of long carbon fiber reinforced concrete (LCFRC). The results from each test were then compared to one …
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Sustainable bacteria-based self-healing fiber reinforced concrete
Self-healing concrete presents an innovative and eco-friendly solution with the potential to reduce maintenance costs through self-activated crack repair. This study examined the effect of varying bacterial content across different environmental conditions. Additionally, the coupling effect between …
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Performance of confined concrete columns under simulated life cycles
… as a method of retrofitting existing reinforced concrete structures to bring them up to current code standards of confinement and ductility. The development of stress-strain models for FRP confined concrete began with the adaptation of steel confinement models then progressed to models …
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Time-dependent response of flat plate structures under high sustained load
Reinforced concrete (RC) structures may be exposed to high levels of sustained stresses resulting from errors in construction or design, abnormal loading, and material degradation. Although most RC structures are designed to withstand service level load with a large safety factor, errors may cause …
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Early-age hydration and volume change of calcium sulfoaluminate cement-based binders
… creep. Lastly, the application of CSA cement in concretes is discussed to link the paste and concrete behavior.
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Experimental testing and constitutive modeling of concrete confined with shape memory alloys
Concrete confinement has been proven to be effective in increasing concrete strength and ductility, which are essential characteristics for structures prone to extreme loading events, such as earthquakes. Andrawes and Shin (2008) first proposed the idea of using shape memory alloy (SMA) spirals to …
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Seismic Evaluation of Reinforced Concrete Columns and Collapse of Buildings
There are a large number of reinforced concrete (RC) buildings in seismically active areas of the world that are not designed and constructed in accordance with modern seismic design provisions. These buildings are vulnerable to severe damage or collapse due to their low lateral displacement …
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Strength and Ductility of Concrete Cylinders Confined with Fiber Metal Laminate Composites
… Externally bonded FRP retrofits of reinforced concrete elements provide an efficient, economical, and accepted method of mitigating deficiencies related to seismic and blast loads, as well as addressing corrosion-related issues. FRPs retrofits are widely regarded as cost effective as the cost …