Investigation into fibre composites jacket with an innovative joining system

Manalo, Allan; Karunasena, Warna; Sirimanna, C. S.; Maranan, Ginghis B.

doi:10.1016/j.conbuildmat.2014.04.125

Cited by 16 publications

(2 citation statements)

References 20 publications

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“…Jacketing using versatile fibre-reinforced polymer (FRP) has been beneficial in addressing some limitations on the traditional RC jacketing method such as weight and the complexity of steel anchorage. However, the continuity and effective confinement in the circumferential direction in the prefabricated composite FRP repair systems is always a concern (Chellapandian et al 2019;Manalo et al 2016Manalo et al , 2014. Current FRP jacketing systems fully restore the axial load capacity of the damaged concrete core piers, and with an increase of the damage percentage, the effectiveness of the FRP jacketing is significantly reduced.…”

Section: Research On Rehabilitation and Strengthening Of Piers/column...mentioning

confidence: 99%

Behaviour of Structural Elements Constructed and Rehabilitated With High Performance Concretes

Ehsani Yeganeh

2024

Preprint

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<p>An extensive experimental investigation coupled with Code based/design-oriented analysis was conducted on the performance and application of high-performance concretes (HPCs) including self-consolidating concrete (SCC), engineered cementitious composite (ECC) and ultra-highperformance concrete (UHPC) in different reinforced structural elements. Ten 1/3 scale exterior shear deficient beam-column connections were tested under torsional and bending loading. Ten rd 1/3 scale building frames (three shear and seven flexure critical) and seven framed shear walls were tested under reversed cyclic lateral loading. Twenty-three 1/5 scale ECC/UHPC/SCC jacketed strengthened/repaired reinforced SCC piers/columns were tested under axial loading to failure. The incorporation of ECC and UHPC in full frame or joint region (in plastic hinge zone) as replacement of SCC in shear deficient specimens changed brittle shear failure to desired ductile flexural failure mode while significantly increasing bending/torsional/cyclic or hysteretic load and deformability/ductility capacities. ECC/UHPC made specimens exhibited higher energy absorption and damage tolerance capacities with better crack control characteristics as well as potentially lower longitudinal and hoop/shear reinforcement requirements which can significantly improve seismic behaviour. The strain hardening with multiple cracking and limiting crack width characteristics of ECC lowered the initial stiffness and stiffness degradation with the ability to maintain good damping behaviour during lateral cyclic loading of building frames and framed shear wall system. The tested ECC framed shear wall specimens under lateral cyclic loading had higher ultimate load and deformability capacities compared to their SCC counterparts. This was attributed to better transfer of shear stress through cracks due to fiber bridging and multiple cracking with small crack width in ECC compared to SCC/UHPC. Piers rehabilitated and strengthened with ECC/UHPC jackets showed higher strength. However, ECC specimens showed better performance in terms of enhanced confining effect along the height exhibiting ductile failure compared to their SCC/UHPC counterparts which showed brittle crushing failure at the top with jacket spalling. Existing Codes and other analytical equations need to be modified for the design of ECC/UHPC incorporated structural components. This study revealed great potential of ECC/UHPC repair/strengthening technology and ECC/UHPC incorporated building frames, beam-column connections and framed-shear wall system having higher torsional, flexural and shear resistance in practical construction.</p>

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Section: Research On Rehabilitation and Strengthening Of Piers/column...mentioning

confidence: 99%

Behaviour of Structural Elements Constructed and Rehabilitated With High Performance Concretes

Ehsani Yeganeh

2024

Preprint

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“…Furthermore, many of the world's inadequate stainless-steel infrastructure needs structural rehabilitation to mitigate the harmful effects of corrosion, resulting in constraints on their intended use and load capacity [4]. The recurrent question of durability in conventional repair procedures like concrete [5] and steel jackets [6] compounds this issue since they are produced from the same materials employed in existing structural components that are again damaged by the same forces that attacked the original structure [7].…”

Section: Figure 1 Differences Between Normal Pile and Interlock Pilejaxmentioning

confidence: 99%

Comparison of Flexural Properties of Pinewood With Fea Simulation for Marine Application

Salleh,

Zullastri

2024

Jurnal Teknologi

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Pine wood sourced from pellet packaging, being abundant, holds potential for utilization in creating bio composites, particularly as activated carbon for laminated coatings in structural applications. However, there is a current lack of research identifying its specific properties as a coating material for Fiber Reinforced Polymer (FRP) composites. Fiber Reinforced Polymer (FRP) composites provide a highly adaptable solution for reinforcing and revitalizing existing structures in challenging marine conditions. This study delves into investigating the flexural characteristics of FRP pine wood composites, comparing the findings with Finite Element Analysis (FEA) results. Furthermore, the activated carbon derived from pine wood exhibits potential for resisting barnacle attachment when immersed in saltwater. For the flexural analysis, samples were produced using a silicone rubber mold, incorporating varying weight percentages (wt.%) of activated FRP pine wood, ranging from 2 wt.% to 10 wt.%. The outcomes of the study reveal that the introduction of activated carbon from pine wood leads to an enhancement in ultimate strength, reaching a maximum of 2700 MPa. Nonetheless, the results also indicate a reduction in material strength as the proportion of activated carbon pine wood is increased.

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Axial Behaviour of Damaged Concrete Columns Repaired with Novel Prefabricate FRP Jacket

Mohammed

Manalo

Alajarmeh

et al. 2021

Lecture Notes in Civil Engineering

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Investigation into fibre composites jacket with an innovative joining system

Cited by 16 publications

References 20 publications

Behaviour of Structural Elements Constructed and Rehabilitated With High Performance Concretes

Behaviour of Structural Elements Constructed and Rehabilitated With High Performance Concretes

Comparison of Flexural Properties of Pinewood With Fea Simulation for Marine Application

Axial Behaviour of Damaged Concrete Columns Repaired with Novel Prefabricate FRP Jacket

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