Search Results - "Lopes, Sergio M. R"

Revisiting Cracking in Reinforced Concrete Beams: An Updated Analysis by Lopes, Adelino V., Lopes, Sergio M. R.

“…As materials and structural optimization continue to be important in design, structural safety checks for service limit states have become increasingly…”
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New Methodology for Evaluating Strength Degradation from Temperature Increase in Concrete Hydration under Adiabatic Conditions by Lopes, Adelino V, Lopes, Sergio M R

“…Cement-based construction materials, commonly known as "cement concrete", result from the hydration reaction of cement, which releases heat. Numerous studies…”
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Flexural Response of Axially Restricted RC Beams: Numerical and Theoretical Study by Hu, Han, Lopes, Sergio M. R., Lopes, Adelino V., Lou, Tiejiong

“…Reinforced concrete (RC) frame beams are subject to axial restriction at the ends, which plays an important role in the nonlinear behavior of these beams. This…”
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Plastic analysis of HSC beams in flexure by Bernardo, Luís F. A., Lopes, Sérgio M. R.

“…This article presents an experimental study on the plastic behaviour of HSC beams in bending. Nineteen isostatic beams were tested up to failure. The loading…”
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Experimental Study on the Flexural Behavior of Alkali Activated Fly Ash Mortar Beams by Lopes, Adelino V., Lopes, Sergio M. R., Pinto, Isabel

“…This work aims to study the possibility of using alkaline activated fly ash in structural members. The work, of an experimental nature, focuses on the…”
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Flexural Response of Continuous Concrete Beams Prestressed with External Tendons by Lou, Tiejiong, Lopes, Sergio M. R, Lopes, Adelino V

“…AbstractThis article presents the results of a numerical investigation of the flexural behavior of continuous externally prestressed concrete beams. Aspects of…”
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Effects of the compressive reinforcement buckling on the ductility of RC beams in bending by Lopes, Adelino V., Lopes, Sérgio M.R., do Carmo, Ricardo N.F.

“…► The stirrup spacing in beams is important to avoid buckling of the compressive bars. ► The curve M−1/r post-peak could be very different depending on ρ and…”
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Bi-dimensional numerical modeling of timber–concrete slab-type structures by Monteiro, Sandra R. S., Dias, Alfredo M. P. G., Lopes, Sérgio M. R.

“…The behavior of timber–concrete slab-type structures is not fully understood yet. This is the case of the transversal load distribution in composite floors…”
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Stiffness of reinforced concrete slabs subjected to torsion by Lopes, Adelino V., Lopes, Sérgio M. R., do Carmo, Ricardo N. F.

“…The study of torsion in reinforced concrete members began in the early twentieth century but it has become more widespread in the past 60 years. Even today,…”
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Factors affecting moment redistribution at ultimate in continuous beams prestressed with external CFRP tendons by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…A numerical investigation of redistribution of moments in continuous concrete beams prestressed with external carbon fiber reinforced polymer (CFRP) tendons at…”
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Behaviour of concrete beams under torsion: NSC plain and hollow beams by Bernardo, Luís F. A., Lopes, Sérgio M. R.

“…A simple computation procedure is developed to predict the general behaviour of reinforced concrete beams under torsion. Both plain and hollow normal strength…”
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Evaluation of Moment Redistribution in Normal-Strength and High-Strength Reinforced Concrete Beams by Lou, Tiejiong, Lopes, Sergio M. R, Lopes, Adelino V

“…AbstractThis article presents an investigation of redistribution of moments in normal-strength concrete (NSC) and high-strength concrete (HSC) continuous…”
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Effect of linear transformation on nonlinear behavior of continuous prestressed beams with external FRP cables by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…•Linear transformation of external FRP cables is analyzed.•Secondary moments vary linearly with the cable shift by linear transformation.•Linear transformation…”
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Numerical modeling of externally prestressed steel–concrete composite beams by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…A finite element model to analyze externally prestressed steel–concrete composite beams under short and long-term loads is developed. The nonlinear geometric…”
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Moment redistribution in two-span prestressed NSC and HSC beams by Lou, Tiejiong, Liu, Muyu, Lopes, Sergio M. R., Lopes, Adelino V.

“…This paper presents a numerical investigation into two-span continuous prestressed normal-strength concrete (NSC) and high-strength concrete (HSC) beams,…”
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Response of continuous concrete beams internally prestressed with unbonded FRP and steel tendons by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…This paper analyzes the global behavior of two-span continuous prestressed concrete beams with internal unbonded fiber reinforced polymer (FRP) and steel…”
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Time-dependent behavior of concrete beams prestressed with bonded AFRP tendons by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…This paper presents a numerical study on the long-term performance of bonded aramid fiber reinforced polymer (AFRP) prestressed concrete beams. A computer…”
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Neutral axis depth and moment redistribution in FRP and steel reinforced concrete continuous beams by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…The neutral axis depth is considered the best parameter for quantifying the moment redistribution in continuous concrete beams, as exemplified in various…”
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External CFRP tendon members: Secondary reactions and moment redistribution by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…The response of prestress secondary reactions in the post-elastic range has been a topic of much controversy. Due to the brittleness of FRP (fiber reinforced…”
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A comparative study of continuous beams prestressed with bonded FRP and steel tendons by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…This paper presents a numerical investigation of the performance of continuous prestressed concrete beams with bonded fiber reinforced polymer (FRP) and steel…”
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