Project/scholarship details
- Project/scholarship ID
114511
- Reference
PTDC/ECM/114511/2009
- FundRef URI
- Funder
FCT - Fundação para a Ciência e a Tecnologia, I.P.
- Funder's country
Portugal
- Funding program
5876-PPCDTI
- Funding amount
181,286.00 €
- Start date
2011-03-01
- End date
2014-08-31
Documents
Flexural strengthening of masonry members using advanced cementitious materials
Barros, Joaquim A. O.; Esmaeeli, Esmaeel; Manning, Elizabeth Campbell; Häßler, D.Two different cement based fiber reinforced composites for the flexural strengthening of masonry beams under monotonic loading are studied. Steel Fiber Reinforced Self- Compacting Concrete (SFRSCC) with tensile strain-softening behavior, and PVA fiber reinforced cement based mortar (SHCC) with tensile Strain-Hardening were the developed composites. Both composites were applied on the tensile surface of masonry ...
Performance of pre-cracked RC beams shear strengthened with NSM CFRP laminates
Dias, Salvador J. E.; Barros, Joaquim A. O.The strengthening of an existing Reinforced Concrete (RC) structure often involves concrete in a cracked state. To evaluate the effect of existing cracks on the behavior of RC beams shear strengthened according to the Near Surface Mounted (NSM) technique with Carbon Fiber Reinforced Polymer (CFRP) laminates, an experimental program was carried. NSM CFRP laminates were applied in RC beams with or without cracks ...
Exploring the possibilities of steel-fiber reinforced self-compacting concrete ...
Häßler, D.; Barros, Joaquim A. O.The potentialities of a thin layer of steel fibre reinforced self-compacting concrete (SFRSCC) for the flexural strengthening of handmade brick structural elements are investigated. For this purpose an experimental program was carried out covering the relevant phenomena that can influence the effectiveness of this technique. The SFRSCC has a post-cracking residual tensile strength capable of improving the flexu...
Assessment of the effectiveness of the NSM shear strengthening technique for de...
Barros, Joaquim A. O.; Dias, Salvador J. E.The effectiveness of the near surface mounted (NSM) technique with carbon fibre reinforced polymer (CFRP) laminates for the shear strengthening of reinforced concrete (RC) beams has been demonstrated during the last decade. Analytical and numerical research indicate that the NSM technique for the shear strengthening of RC beams can be more effective if the CFRP laminates are deeper installed into the slits. How...
Hybrid Composite Plates (HCP) for shear strengthening of RC beams
Esmaeeli, Esmaeel; Barros, Joaquim A. O.; Baghi, HadiThe potential of a hybrid composite plate (HCP) for the strengthening of reinforced concrete (RC) deep beams is evaluated. HCP are composed of a CFRP sheet that is glued to the external surface of a thin plate made of strain hardening cementitious composite (SHCC). These panels were glued to the lateral faces of RC deep beams. Three groups of shear strengthened RC beams were tested under three-point bending loa...
Reinforced concrete beams strengthened in shear with NSM CFRP laminates : asses...
Dias, Salvador J. E.; Barros, Joaquim A. O.To appraise the performance of the Near surface mounted (NSM) technique with carbon fiber reinforced polymer (CFRP) laminates for the shear strengthening of reinforced concrete (RC) beams having a certain percentage of existing steel stirrups, an extensive experimental research was carried out. The influence on the effectiveness of the NSM shear strengthening technique of the following parameters was investigat...
Shear strengthening of RC beams with NSM CFRP laminates : experimental research...
Dias, Salvador J. E.; Barros, Joaquim A. O.The effectiveness of the NSM technique with CFRP laminates for the shear strengthening of RC beams with a certain percentage of steel stirrups was assessed by an extensive experimental research. In this context, the influence of the following parameters was investigated: concrete strength; percentage of existing steel stirrups; percentage and inclination of the CFRP laminates; existence of cracks when the RC be...
A FEM-based model to predict the behaviour of RC beams shear strengthened accor...
Barros, Joaquim A. O.; Baghi, Hadi; Dias, Salvador J. E.; Gouveia, A. VenturaExperimental research has demonstrated the excellent performance of the near surface mounted (NSM) technique with carbon fibre reinforced polymer (CFRP) laminates for the shear strengthening of reinforced concrete (RC) beams. This paper presents a finite element analysis to evaluate the behaviour of RC beams shear strengthened with NSM CFRP laminates. To predict correctly the deformational and the cracking beha...
Design formula to evaluate the NSM FRP strips shear strength contribution to a ...
Bianco, V.; Monti, G.; Barros, Joaquim A. O.This paper presents the closing step of a synthesis process aiming at deriving, from a previously developed more complex model, a simple design formula to evaluate the shear strength contribution provided by a system of Near Surface Mounted (NSM) Fiber Reinforced Polymer (FRP) strips to a Reinforced Concrete (RC) beam. The self-contained and ready-to-implement set of analytical equations and logical operations ...
Shear strengthening of reinforced concrete beams with SHCC-FRP panels
Baghi, HadiTese de Doutoramento em Engenharia Civil; The main purpose of this thesis is to assess the potentialities of Hybrid Composite Plates (HCPs) for the shear strengthening of reinforced concrete (RC) beams. HCP is a thin plate of Strain Hardening Cementitious Composite (SHCC) reinforced with Carbon Fiber Reinforced Polymer (CFRP) laminates applied according to the Near Surface Mounted technique (NSM). Due to the ex...
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