Browsing by Department "Statinių ir tiltų konstrukcijų institutas / Institute of Building and Bridge Structures"
Now showing items 1-20 of 108
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A bond model of synthetic macro-fibre in concrete
(Proceedings of the 13th FIB International PhD Symposium in Civil Engineering, held in Paris, France, August 26-28, 2020, 2020)Bond behaviour of a synthetic macro-fibre in concrete is the object of this research. The bond strength and stiffness are the parameters characterising the bonding mechanism that determines the efficiency of the reinforcing ... -
A new approach to quantification of residual flexural stiffness of reinforced concrete
(Proceedings of the international conference on Sustainable Materials, Systems and Structures (SMSS 2019). Novel methods for characterization of materials and structures, 20-22 March 2019, Rovinj, Croatia / edited by Ivan Gabrijel, Christian Grosse, Marijan Skazlić, 2019)Residual stiffness of reinforced concrete elements is closely related with structural integrity of cracked sections. A plenty of various evaluation procedures, however, does not enable the comparative analysis of different ... -
A new creep test method for reinforced concrete tension members under constant loading
(SynerCrete'18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time, 24-26 October, Funchal, Portugal : conference proceedings / edited by Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska, 2018)This paper reports the experimental study on creep behaviour of reinforced concrete (RC) tension members subjected to long-term constant loading. An innovative testing rig was designed and four replicates were fabricated ... -
A new testing procedure to quantify unfavourable environmental effect on mechanical performance of composite reinforcement system
(Proceedings of the 14th fib International PhD Symposium in Civil Engineering, 5-7 September 2022, Rome, Italy, 2022)Current technology development ensures a variety of material types for reinforcing and strengthening concrete structures. However, the absence of a uniform testing methodology complicates quantification (and comparison) ... -
A novel approach to residual stiffness analysis of flexural concrete elements with composite reinforcement
(IABSE symposium. Guimaraes 2019. Towards a resilient built environment - Risk and asset management, March 27-29, 2019, Guimaraes, Portugal, 2019)This study introduces a simplified tension-stiffening approach for the flexural stiffness analysis. It employs a new testing layout designed with the purpose to form multiple cracks in a small laboratory specimen. The ... -
A peculiar value of M to Mcr ratio: Reconsidering assumptions of curvature analysis of reinforced concrete beams
(Applications in engineering science, 2021)The paper critically evaluates design code techniques (ACI 318-14, ACI 318-19, and Eurocode 2) for the instantaneous curvature analysis of reinforced concrete (RC) beams. The study examines the soundness of the assumption ... -
Advanced composites: from materials characterization to structural application
(2021)Modern industry can produce composite materials with a wide range of mechanical properties applicable in the medicine, aviation, and automotive industries, etc. However, the construction industry is responsible for a ... -
An efficient approach to describe the fiber effect on mechanical performance of pultruded GFRP profiles
(Frontiers in materials, 2021)This study focuses on the flexural behavior of pultruded glass fiber-reinforced polymer (GFRP) profiles developed for structural applications. Fiber content is a commonly accepted measure for estimating the resistance of ... -
An experimental study on cracking and deformations of tensile concrete elements reinforced with multiple GFRP bars
(Composite structures, 2018)Although different setups have been developed for analysis of the serviceability properties (cracking and deformations) of reinforced concrete elements, tensile tests are remaining the most often used testing layouts. ... -
An innovative frictional anchorage system for flat CFRP ribbon strips
(Composite structures, 2023)Unidirectional carbon fibre-reinforced polymer (CFRP) materials represent a promising alternative to steel because of their lightweight, high tensile strength, and excellent corrosion and fatigue resistance. Stress-ribbon ... -
Analysis of local deformation effects in cold-formed tubular profiles subjected to bending
(Journal of constructional steel research, 2019)Application of high-strength steel can serve improving structural efficiency as well as solve structural problems when traditional materials are inapplicable due to strength limitations. Innovative structural solutions, ... -
Analysis of mechanical performance and durability of self-healing biological concrete
(Construction and building materials, 2020)Concrete is a building material that withstands environmental actions for centuries. Development of concrete technologies enables building up the lightweight, slender, and aesthetically attractive structures. These building ... -
Analyzing environmental effects on the mechanical performance of composite reinforcement systems
(Building for the future: Durable, sustainable, resilient : proceedings of the fib Symposium 2023. Vol. 1, 2023)In recent years, fiber-reinforced polymeric (FRP) materials have become promising alternatives to steel because of their lightweight, electromagnetic transparency, and corrosion resistance. However, the unfavorable environment ... -
Analyzing the sample geometry effect on mechanical performance of drilled GFRP connections
(Materials: Advanced Composites: From Materials Characterization to Structural Application (Second Volume), 2022)A considerable effort to understand the bolted joints’ mechanical behavior in pultruded profiles has existed in the literature over the past decades. However, most investigations focused on the single-bolt connections, and ... -
Application of FE approach to deformation analysis of RC elements under direct tension
(Structural engineering and mechanics, 2018)Heterogeneous structure and, particularly, low resistance to tension stresses leads to different mechanical properties of the concrete in different loading situations. To solve this problem, the tension zone of concrete ... -
Bacterial viability in self-healing concrete: A case study of non-ureolytic bacillus species
(Microorganisms, 2023)Cracking is an inevitable feature of concrete, typically leading to corrosion of the embedded steel reinforcement and massive deterioration because of the freezing–thawing cycles. Different means have been proposed to ... -
Bearing capacity and stiffness of pile group foundation
(The 13th international conference “Modern building materials, structures and techniques”, 16–17 May, 2019, Vilnius, Lithuania, 2019)Pile group foundations are widely employed in geotechnical design. Bearing capacity increment/reduction of pile group (PG) foundation in design practice often described via empirical efficiency factor (EF), a multiplier ... -
Bio-colonization layered concrete panel for greening vertical surfaces: A field study
(Case studies in construction materials, 2023)Although the economical and aesthetical benefits of living walls are well recognized, the practical application of such systems is still under consideration. In addition, high installation and maintenance costs of existing ... -
Bond behavior of stainless-steel and ordinary reinforcement bars in refractory castables under elevated temperatures
(Journal of composites science, 2023)Refractory castables, i.e., refractory aggregates and ultra-fine particle mixtures with calcium aluminate cement (CAC) and deflocculants, were created 40 years ago for the metallurgy and petrochemical industries. These ... -
Bond-stress and bar-strain profiles in RC tension members modelled via finite elements
(Engineering structures, 2019)Concrete-reinforcement interaction is a complex issue in the mechanics of reinforced-concrete structures all the more because the reinforcement, the concrete layer at the interface and the undamaged concrete are involved. ...