Browsing SINTEF Narvik by Author "Sas, Gabriel"
Now showing items 1-13 of 13
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Assessment of RC walls with cut-out openings strengthened by FRP composites using a rigid-plastic approach
Popescu, Cosmin; Scmidt, Jacob W.; Goltermann, Per; Sas, Gabriel (Journal article; Peer reviewed, 2017)Building refurbishment works frequently require the cutting of new openings in concrete walls. Cutting new openings weakens the overall response of such elements, so they usually require strengthening. However, current ... -
Axially Loaded RC Walls with Cutout Openings Strengthened with FRCM Composites
Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2018)Abstract: Upgrading existing buildings to new functional requirements may require new openings that can weaken the structure, prompting the need for strengthening. In such cases traditional strengthening solutions, such ... -
Concrete walls with cutout openings strengthened by FRP confinement
Popescu, Cosmin; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Peer reviewed; Journal article, 2017)Redesigning buildings to improve their space efficiency and allow changes in use is often essential during their service lives to comply with shifts in living standards and functional demands. This may require the introduction ... -
Effect of Confinement with FRCM Composites on Damaged Concrete Cylinders
Gonzalez-Libreros, Jaime; Sabau, Cristian; Sneed, Lesley H.; Sas, Gabriel; Pellegrino, Carlo (Journal article; Peer reviewed, 2017)Confinement of axially loaded concrete members in existing structures is required when a change in use is expected or when there is a need to upgrade the structure to meet current design standards. In addition, after unusual ... -
Experimental study on shear deformation of reinforced concrete beams using digital image correlation
Huang, Zheng; Tu, Yongming; Meng, Shaoping; Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel (Journal article; Peer reviewed, 2019)This paper presents an experimental program aimed at providing reliable and comprehensive experimental data for assessing the available models of predicting the shear deformation of diagonally-cracked reinforced concrete ... -
Finite element analysis of shear deformation in reinforced concrete shear-critical beams
Huang, Zheng; Lü, Zhitao; Tu, Yongming; Blanksvärd, Thomas; Sas, Gabriel; Elfgren, Lennart (Journal article; Peer reviewed, 2017)The objective of this paper was to study the contribution of shear deformation in reinforced concrete (RC) shear-critical beams. A 2D concrete material model based on smeared fixed crack was presented and incorporated into ... -
Local and global behavior of walls with cut-out openings in multi-story reinforced concrete buildings
Sabau, Cristian; Popescu, Cosmin; Bagge, Niklas; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2019)This paper presents the finite element analysis (FEA) results of a multi-story reinforced concrete (RC) building having precast and cast-in-place load bearing walls. Door-type cut-out openings (height: 2.1 m, width: 0.9–4.4 ... -
Performance of RC Walls with Openings Strengthened by Fiber Reinforced Polymers: An Experimental and Theoretical Investigation
Popescu, Cosmin; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Chapter, 2017)Redesigning buildings to improve their space efficiency and allow changes in use is often essential during their service lives to comply with shifts in living standards and functional demands. This may require the introduction ... -
Review of FRCM strengthening solutions for structural wall panels
Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Chapter, 2018)This paper summarizes the state-of-the-art on the topic of structural wall panels strengthened using fabric reinforced cementitious matrix composites (FRCM) composites. A systematic review of the literature is carried out ... -
State of research on shear strengthening of RC beams with FRCM composites
Gonzalez-Libreros, Jaime H.; Sabau, Cristian; Sneed, Lesley H.; Pellegrino, Carlo; Sas, Gabriel (Journal article; Peer reviewed, 2017)This paper summarizes the state of research on the topic of shear strengthening of RC beams using externally bonded FRCM composites. In the first part of this paper, a detailed bibliographical review of the literature on ... -
Strengthening of RC beams using bottom and side NSM reinforcement
Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel; Schmidt, Jacob Wittrup; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2018) -
Structural health monitoring of a buttress dam using digital image correlation
Popescu, Cosmin; Sas, Gabriel; Arntsen, Bård (Chapter, 2019)In order to improve the knowledge of the real behaviour of existing structures,structural health monitoring (SHM) is usually carried out. Initial calculations of a buttress dam located in Norway has been carried out to ... -
Use of image correlation system to study the bond behavior of FRCM-concrete joints
Sabau, C.; Gonzalez-Libreros, J.H.; Sneed, L.H.; Sas, Gabriel; Pellegrino, C.; Täljsten, B. (Journal article; Peer reviewed, 2017)This paper presents a non-contact measurement approach, based on digital photogrammetry,applied to the experimental study of the bond behavior of fiber reinforced cementitious matrix composite to concrete joints tested in ...