Tomasz Waśniewski

ORCID: 0000-0001-7303-4920
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About
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Research Areas
  • Structural Behavior of Reinforced Concrete
  • Structural Load-Bearing Analysis
  • Structural Engineering and Materials Analysis
  • Innovative concrete reinforcement materials
  • Concrete and Cement Materials Research
  • Civil and Structural Engineering Research
  • Innovations in Concrete and Construction Materials
  • Building energy efficiency and sustainability
  • Structural Response to Dynamic Loads
  • Geotechnical and Mining Engineering

Lodz University of Technology
2005-2025

University of Łódź
2005

This paper covers the analysis of behavior columns made LWAC (Lightweight Aggregate Concrete), which can be used as a substitute for normal-density concrete. work presents an experimental research program focused on second-order effects in slender elements (λ = 74) and concrete tested under eccentric load. Elements with two ratios longitudinal reinforcement (0.9%, 2.3%) were considered. Despite similar compressive strengths concrete, significantly different moduli elasticity types caused...

10.3390/ma18061312 article EN Materials 2025-03-16

The paper presents a numerical analysis of deformability and load-bearing capacity lightweight aggregate concrete (LWAC) elements subjected to bending with axial force. nonlinear material model LWAC presented in Eurocode 2 (EC2) was assumed. Several different densities compressive strengths were taken into account. investigations included the comparison sectional behaviour slender made normal concrete. It observed that density-dependent mechanical properties affect obtained values maximum...

10.35784/bud-arch.2138 article EN cc-by-sa Budownictwo i Architektura 2020-08-11

This research study aimed to investigate the effect of lightweight aggregate concrete and steel reinforcement interaction on behaviour continuous beams compared normal same strength. paper presents six full-scale, double-span with a rectangular cross-section made both concrete. The confirmed that achieve comparable flexural capacities those NWC but their deformability ductility are lower. Although redistribution internal forces depends mainly longitudinal ratio, influence ultimate...

10.3390/ma14195614 article EN Materials 2021-09-27

Lightweight Aggregate Concrete (LWAC) is typically defined as concrete having a density smaller than or equal to 2200kg/m3 and can be obtained by mixing natural artificial lightweight aggregates. There general scepticism regarding the use of aggregate for structural applications. This concern attached more brittle material behaviour which leads lower ductility.
 article presents numerical parametric analysis reinforced LWAC cross-sections under immediate load taking into account...

10.35784/bud-arch.2124 article EN cc-by-sa Budownictwo i Architektura 2020-11-02

W pracy przedstawiono analizę numeryczną nośności przekrojów i smukłych elementów z betonu lekkiego (LWAC) poddanych działaniu siły osiowej oraz momentu zginającego. Przyjęto nieliniowy model materiałowy przedstawiony w Eurokodzie 2 (EC2) [1]. Średnia wytrzymałość na ściskanie przyjęta obliczeniach wynosiła 53 MPa. Rozważano kilka różnych gęstości betonu. Zaobserwowano, że właściwości wytrzymałościowe zależne od wpływają uzyskiwane wartości maksymalnej zginającego pomimo tej samej średniej...

10.5604/01.3001.0014.5102 article PL BUILDER 2020-11-19
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