Mechanical Behavior of ECC and ECC/RC Composite Columns under Reversed Cyclic Loading

Xu, Lihua; Pan, Jinlong; Chen, Junhan

doi:10.1061/(asce)mt.1943-5533.0001950

Cited by 54 publications

(20 citation statements)

References 23 publications

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“…Hence, RC/ECC composite columns were designed where ECC is used in potential plastic hinge regions as a replacement for concrete. The experimental studies indicated that RC/ECC columns, with different shear‐span ratios and ECC replacement ranges, had better seismic capacities and damage tolerance than RC columns had . For RC/ECC columns with a shear‐span ratio of 5.5 and ECC replacement range of 1.5–2.0 times column depth, a ductile flexure failure was exhibited, although the stirrups in ECC replacement regions were removed .…”

Section: Experimental Study Of Seismic Behavior Of Recc and Rc/ecc Comentioning

confidence: 99%

“…Figure shows the comparison of hysteresis behavior between RC and RC/ECC columns. For the columns with shear‐span ratios of 2.0–4.0, the use of ECC with 1.2 times column depth transformed the shear and crushing failure of RC columns to flexure failure even if the stirrup ratio was reduced by half (0.65%) . Furthermore, the cyclic response behavior of RECC and RC/ECC composite columns was close to each other, which means the local replacement of ECC in potential plastic hinge zone is adequate to ensure a good seismic behavior.…”

Section: Experimental Study Of Seismic Behavior Of Recc and Rc/ecc Comentioning

confidence: 99%

“…The experimental studies indicated that RC/ECC columns, with different shear-span ratios and ECC replacement ranges, had better seismic capacities and damage tolerance than RC columns had. 45,46 For RC/ECC columns with a shear-span ratio of 5.5 and ECC replacement range of 1.5-2.0 times column depth, a ductile flexure failure was exhibited, although the stirrups in ECC replacement regions were removed. 45 The varied ECC range from 1.5 to 2 times column depth had little effect on the seismic performance.…”

Section: Columnsmentioning

confidence: 99%

“…For simplicity, the abbreviation ECC is used in this paper. Moreover, extensive experimental study has demonstrated that ECC has great potential for use in structural members to improve or strengthen static mechanical behaviour and seismic behaviour . Therefore, the application of ECC at key structural positions may be an effective way to enhance the seismic performance of structures in regions of high seismic risk.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, extensive experimental study has demonstrated that ECC has great potential for use in structural members to improve or strengthen static mechanical behaviour [29][30][31][32][33][34][35] and seismic behaviour. 2,3,5,[36][37][38][39][40][42][43][44][45][46][47][48][49][51][52][53][54][55][56][57][58] Therefore, the application of ECC at key structural positions may be an effective way to enhance the seismic performance of structures in regions of high seismic risk.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

Hou

Chen

et al. 2019

Structural Concrete

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Seismic performance is of paramount importance for structures in regions with high seismic risk. Engineered cementitious composite (ECC) exhibits tensile strain hardening behavior and excellent crack dispersion capacity, as well as good workability. The application of ECC material may be a feasible way to improve the seismic behavior of engineering structures. This paper presents a comprehensive review of experimental and simulation studies concerning seismic behavior of reinforced ECC members and reinforced concrete/ECC composite members. The review is mainly focused on design programs for structural members and their seismic response behavior. The effectiveness of the application of ECC for seismic improvement is discussed. Several design recommendations are provided, based on comparison of the related studies.

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Section: Experimental Study Of Seismic Behavior Of Recc and Rc/ecc Comentioning

confidence: 99%

Section: Experimental Study Of Seismic Behavior Of Recc and Rc/ecc Comentioning

confidence: 99%

Section: Columnsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

Hou

Chen

et al. 2019

Structural Concrete

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Application of engineered cementitious composites in the plastic hinge of reinforced concrete beams for seismic enhancing

Zhang

Yao

et al. 2022

Structural Concrete

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Shear failure of the potential plastic hinge region of reinforced concrete (RC) beam usually causes irrational failure mechanism and low seismic response of the whole frame structure. In this study, engineered cementitious composite (ECC) was proposed to apply locally in the potential plastic hinge region of RC beams to improve the failure mode and rotation capacity of the members. One RC beam and five ECC‐RC composite beams were manufactured, and tested by lateral cyclic loading. The test variables were the length of ECC strengthening region, stirrup ratio and longitudinal reinforcement ratio. The test results indicated that the plastic hinge region of the RC beam failed in shear with poor plastic deformation and low energy dissipation. For the ECC strengthened beams, flexural behavior dominated the ECC region and shear failure was migrated up into the concrete region or eliminated. The ECC region of the composite beams exhibited great rotation capacity, thus the hysteretic response, plastic deformability and energy dissipation of the ECC strengthened beams were improved significantly. Meanwhile, applying ECC in the plastic hinge effectively enhances the damage tolerance of the beams. Based on the test results, the substituting length of ECC in the potential plastic hinge of the RC beam is recommended to be no less than the beam height. Besides, the strength of ECC strengthened beam can be calculated and checked by the current design codes.

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Study on time-varying seismic vulnerability and analysis of ECC-RC composite piers using high strength reinforcement bars in offshore environment

Liang

Zhao

Luo

et al. 2022

Earthq. Eng. Eng. Vib.

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Mechanical Behavior of ECC and ECC/RC Composite Columns under Reversed Cyclic Loading

Cited by 54 publications

References 23 publications

Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

Application of engineered cementitious composites in the plastic hinge of reinforced concrete beams for seismic enhancing

Study on time-varying seismic vulnerability and analysis of ECC-RC composite piers using high strength reinforcement bars in offshore environment

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