Search Results - "Adelino V. Lopes"

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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Influence of the Composition of the Activator on Mechanical Characteristics of a Geopolymer by Lopes, Adelino V., Lopes, Sergio M.R., Pinto, Isabel

“…Geopolymer materials are characterized by their high durability and low carbon dioxide emissions, when compared with more traditional materials, like concrete…”
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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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Redistribution of moments in reinforced high-strength concrete beams with and without confinement by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…Confinement is known to have important influence on ductility of high-strength concrete (HSC) members and it may therefore be anticipated that this parameter…”
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On the ductility of RC beam section: A revision and up to date of conclusions by Lopes, Adelino V., Lou, Tiejiong, Lopes, Sergio M.R.

“…In the context of reinforced concrete (RC) structures, standards aim to relate the ductility of these structures to the ductility of the steels used in their…”
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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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Design of fly ash-based alkali-activated mortars, containing waste glass and recycled CDW aggregates, for compressive strength optimization by Miraldo, Sérgio, Lopes, Sérgio, Lopes, Adelino V., Pacheco-Torgal, F.

“…Alkali-activated mortars and concretes have been gaining increased attention due to their potential for providing a more sustainable alternative to traditional…”
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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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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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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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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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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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Nonlinear and time-dependent analysis of continuous unbonded prestressed concrete beams by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…► A numerical method for continuous unbonded prestressed beams is proposed. ► Geometric and material nonlinearities, and time-dependent effects are considered…”
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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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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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Sensitivity analysis and optimum design of reinforced concrete frames according to Eurocode 2 by Martins, Alberto M. B., Simões, Luís M. C., Negrão, João H. J. O., Lopes, Adelino V.

“…This article presents an optimization-based computational method to assist in the design of reinforced concrete framed structures. The design of these…”
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Flexure of continuous HSC beams with external CFRP tendons: Effects of fibre elastic modulus and steel ratio by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…The results of a theoretical study on the flexural behaviour of continuous high-strength concrete (HSC) beams prestressed with external fibre reinforced…”
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Numerical analysis of behaviour of concrete beams with external FRP tendons by Lou, Tiejiong, Lopes, Sergio M.R., Lopes, Adelino V.

“…► Beams with external CFRP and steel tendons exhibit similar behaviour. ► GFRP tendon beam has lower strength but better ductility than steel tendon beam. ►…”
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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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