Strengthening of Fire-Damaged Reinforced Concrete Short Columns Using GFPPECC Composites

Bhuvaneshwari, P.; Mohan, K. Saravana Raja

doi:10.1007/s13369-020-04795-x

Cited by 3 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many researchers have demonstrated that FEM analysis produces significant results when analyzing concrete under thermal loading conditions [44,45]. The strengthening effect of glass fibre and polypropylene fibre-based engineered cementitious composites (GFPPECC) on fire-damaged reinforced concrete short exterior columns was explained by Bhuvaneshwari et al [46], and the FEM analysis performed by ANSYS was compared with the experimental results and found that there was no deviation in both the experimental and numerical results. Song et al [47] simulated the mass concrete freezing shaft lining and frozen soil wall under the influence of low temperatures by using ANSYS finite element software.…”

Section: Introductionmentioning

confidence: 99%

Damage identification in concrete under impact loading at varying temperatures using voltage strain relations technique: an experimental and numerical study

singh

Dev

Pal

2023

Mater. Res. Express

View full text Add to dashboard Cite

Impact-loaded concrete structures cause severe and rapid damage, resulting in significant property and human life loss. As the temperature rises, the damage caused by impact loading becomes increasingly severe. Concrete structures need structural health monitoring (SHM) to avoid these damage and loss. In this study the voltage relation technique were used to identify the damage state of concrete under impact loads at various temperatures conditions as experimentally and numerically. For this purpose, an experimental study was performed on concrete cube specimens in which different piezo configurations (surface bonded, non-bonded, and jacketed) were installed to acquire the voltage data. Before applying an impact load to the top surface of concrete specimen, it was preheated at 50 oC, 100 oC, and 150 oC to provide the temperature effect, and then a free-falling iron ball was dropped from 3 m heights on the top of the specimens. Furthermore, finite element analysis has been carried out to validate the experimental results with analytical results. The experimental results shows that the voltage relation technique are well capable in detecting the damage in concrete under the temperature and impact loading conditions. All the piezo sensors configurations are capable in finding the damage. Jacketed sensors are more efficient in health assessment of concrete in terms of voltage relations. In terms of strain values, the analytical results are in good agreement with the experimental results.

show abstract

Section: Introductionmentioning

confidence: 99%

Damage identification in concrete under impact loading at varying temperatures using voltage strain relations technique: an experimental and numerical study

singh

Dev

Pal

2023

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…However, if a structure is defective it needs repair and or strengthening. There exist various methods of strengthening defective concrete structures which include; use of bolted steel plates for strengthening columns and beams [2], jacketing of columns using a membrane of reinforced concrete [1,3], using composites such as Glass Fibre and Polypropylene Fibre Based Engineered Cementitious Composites (GFPPECC) [4] and Post-Tensioned Metal Strapping (PTMS) or Side-Near Surface Mounted (NSM) techniques [5]. A number of strengthening techniques mentioned above from the authors were done in models in laboratories.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of a Damaged Concrete Structure - Case Study of an Eleven Stories Building in Dar es Salaam

Makunza

2023

View full text Add to dashboard Cite

Concrete structures may become obsolete and be unfit for use to the extent that they need special attendance of repair or strengthening so as to revive them. The weakness in the buildings may be caused by natural disasters like earthquake, floods, changes of use of the buildings in which higher loads more than the design loads, e.g. vertical extension loads, are applied. When the structures are defective they need to be strengthened in order to restore their original structural integrity. Sometimes, the defect or deterioration needs to be scientifically analysed first in order to know the root cause of the problem and apply the right corrective measures. A case study on an eleven stories damaged building in is presented, starting with an investigation on causes of sudden crushing of one column and a strengthening method which embraced a number of techniques such as Land Surveying and non-destructive tests in assessing the building structural integrity. The crushed column and other columns is the ground floor were all strengthened using jacketing method and provision of additional columns at the crushed column. Keywords: Columns, crushing, non-destructive tests, concrete quality, deflection, plumb, jacketing, strengthening

show abstract

Effect of Fire Loading: Rapid Cooling on the Axial Response of Lightweight Geopolymer Concrete-Infilled Encased Circular Steel Columns

Bhuvaneshwari,

Divya,

Guruprasath

et al. 2023

Arab J Sci Eng

View full text Add to dashboard Cite

Strengthening of Fire-Damaged Reinforced Concrete Short Columns Using GFPPECC Composites

Cited by 3 publications

References 26 publications

Damage identification in concrete under impact loading at varying temperatures using voltage strain relations technique: an experimental and numerical study

Damage identification in concrete under impact loading at varying temperatures using voltage strain relations technique: an experimental and numerical study

Strengthening of a Damaged Concrete Structure - Case Study of an Eleven Stories Building in Dar es Salaam

Effect of Fire Loading: Rapid Cooling on the Axial Response of Lightweight Geopolymer Concrete-Infilled Encased Circular Steel Columns

Contact Info

Product

Resources

About