Seismic performance evaluation of crumb rubber concrete frame structure using shake table test

Khan, Izzat; Shahzada, Khan; Bibi, Tayyaba; Ahmed, Asfandyar; Ullah, Hanif

doi:10.1016/j.istruc.2021.01.003

Cited by 29 publications

(10 citation statements)

References 32 publications

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“…Rubber aggregates changed concrete's brittle failure behavior towards a ductile failure pattern [14]. The crumb rubber concrete frame's maximum seismic response acceleration was (20.40%) which is lower than the conventional concrete frame, demonstrating that during the earthquake, the seismic forces placed on the crumbly rubber concrete frame will indeed be lower than those placed on a conventional concrete frame [15].…”

Section: Introductionmentioning

confidence: 94%

Flexural behavior of CFRP-strengthened reinforced concrete beams rubberized with finely minced rubber tire

Abdullah Adday,

Sultan Ali

2023

PEN

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Although using rubber to create reinforced concrete substrates has many benefits, using rubberized concrete substrates, such as beams, is still limited. Where concrete with rubber included in it starts to lose a percentage of its mechanical qualities, such as flexural strength. Conversely, a significant portion of structural uses for strengthening reinforced concrete beams using exterior carbon fiber reinforced polymer (CFRP) sheets are for flexural strengthening. This study used externally bonded carbon fiber-reinforced polymer (CFRP) sheets to compensate for the reduction in flexural strength when creating rubberized concrete beams. The reinforced concrete beams used in this study were divided into three groups, each with three beams. Waste tire rubber was replaced (5%) of the fine aggregate volume in the first group and replaced (10%) in the second group. The reference group consists of the third set of beams. The first concrete beam in any group was always devoid of external strengthening, the second beam had one layer and the third beam had two layers of (CFRP) sheet. The third layer of strengthening was numerically represented using ABAQUS, a finite element analysis program. The results indicate that for two-volume replacement rates of fine aggregate (5 and 10) %, a decrease in ductility will have been accompanied by an improvement in the flexural strength of the rubberized concrete beam when externally strengthening with one, two, and three layers of (CFRP) sheets.

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Section: Introductionmentioning

confidence: 94%

Flexural behavior of CFRP-strengthened reinforced concrete beams rubberized with finely minced rubber tire

Abdullah Adday,

Sultan Ali

2023

PEN

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“…For instance, rubberised concrete has been found to possess high energy and sound absorption capacities, high impact resistance, high damping ratio etc. making it an excellent material for the construction of structures subjected to sudden loadings such as those under earthquake zones [10][11][12][13]. Similarly, PKSC has similar structural behaviour and characteristics as normal weight concrete [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Bond Characteristics of Deformed Steel Rebar in Palm Kernel Shell (PKS)-Rubberised Concrete Composite

Boateng¹,

Kankam²,

Danso³

et al. 2023

J. Civ. Eng. Constr.

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The bond mechanism between concrete and steel is an important input parameter in the design of reinforced concrete elements. The reuse of waste materials as aggregates in concrete has led to the discovery of different types of concrete with unique bond characteristics. This paper reports on the bond characteristics of concrete produced from waste automobile tire chips and palm kernel shell aggregates and deformed mild steel rebars. A total of 125 concrete cubes (150 x 150 x 150mm) with metal inserts were cast from 21 concrete mixes with varied content of PKS and waste automobile tire aggregates. Pullout test was carried out to evaluate the strength of the bond mechanism between the steel and the various concrete mixes. The results revealed that bond strength decreased with increasing PKS and tire content. Moreover, increasing the bar size and embedment length reduced the bond stress. The ratio of the bond stress and compressive strength was found to be averagely 63.88%. Regarding the bond failure mechanism, it was identified that failure of the specimen occurred through either rebar pullout or tensile splitting of the concrete. Based on the results obtained, it was concluded that PKS and tire can be used as partial replacement of granite aggregates in concrete since the resultant concrete can develop adequate bond with steel bars in structural applications.

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“…Full-scale and down-scaled concrete and hybrid concrete building parameters (walls, frames, beams, columns, beam-column joints, connections, etc.) were tested seismically using shake table for years [2][3][4][5][6][7]. Other building material such as timber has renewed interest in construction systems due to its high effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on traditional timber-concrete hybrid house with different types of roofs using shake table

Mahmoud

Lau

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Buildings with different roofing systems possess different seismic performance during earthquake. Most of the traditional buildings are susceptible to earthquake disaster due to no seismic loading is considered in the design. In addition, irregular buildings have been proven to perform badly during earthquake events. Due to lack of investigations on asymmetrical timber-concrete hybrid building under earthquake loading, a ¼ of this type of building model was tested seismically using a unidirectional shake table. Four structural models with frequencies 3.85 Hz, 3.33 Hz, 2.70 Hz and 2.50 Hz varied using diagonal wooden braces and different roof materials namely heavy metal roof and clay roof tile. The models were subjected to El Centro ground motion excitations scaled to 0.08 g, 0.16 g, 0.24 g and 0.32 g PGA resembling 25%, 50%, 75% and 100% of the actual ground motion strength, respectively. Nine accelerometers and seven LVDTs were used to measure the seismic response of the models during shake table test for acceleration and displacement, respectively. Heavier roof material shows a different trend in the amplitudes across the maximum displacement time history, but a clear decrease in acceleration response for the roof level as compared with lighter roof material.

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Seismic performance evaluation of crumb rubber concrete frame structure using shake table test

Cited by 29 publications

References 32 publications

Flexural behavior of CFRP-strengthened reinforced concrete beams rubberized with finely minced rubber tire

Flexural behavior of CFRP-strengthened reinforced concrete beams rubberized with finely minced rubber tire

Bond Characteristics of Deformed Steel Rebar in Palm Kernel Shell (PKS)-Rubberised Concrete Composite

Experimental study on traditional timber-concrete hybrid house with different types of roofs using shake table

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