Influence of Long-Term Loads on Concrete Column Strength

Choo, Ching Chiaw; Gesund, Hans; Harik, Issam E.

doi:10.1061/(asce)1084-0680(2003)8:1(57)

Cited by 4 publications

(3 citation statements)

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“…Creep and shrinkage will occur in concrete columns under long‐term load. Intending to investigate the influence of long‐term loading on concrete columns, some researchers proposed a series of calculation model of the stress–strain relation of concrete based on creep theory . Choo et al provided a realistic long term concrete model that includes the effects of creep and shrinkage as shown in Figure .…”

Section: Effect Of Creep On the Stress–strain Relation Of Concretementioning

confidence: 99%

Effect of creep on the stress–strain relation of fly‐ash slag concrete in marine environments

Gong

Cao

Wang

2019

Structural Concrete

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Lots of concrete structures are located in marine environment, the durability damage of these structures is often the result of the interaction of load, environment, and other factors. In this paper, tests for the stress–strain relation of concrete under the coupled effects of sustained loading, sulfate attack and dry‐wet cycle were conducted. Then, based on the damage stress–strain relation model of concrete under sulfate attack, a calculation method for the stress–strain relation of concrete under the action of sulfate attack and dry‐wet cycle was proposed. Meanwhile, by taking into account the effect of creep on the stress–strain relation of concrete, a time‐dependent stress–strain relation model of concrete was presented. Numerical simulations by the time‐dependent stress–strain relation model demonstrate that the calculated results agree well with the experimental data. Furthermore, the rationality and applicability of the time‐dependent stress–strain relation model were also discussed.

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Section: Effect Of Creep On the Stress–strain Relation Of Concretementioning

confidence: 99%

Effect of creep on the stress–strain relation of fly‐ash slag concrete in marine environments

Gong

Cao

Wang

2019

Structural Concrete

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“…The decrease of strength due to creep was also considered by introducing a coefficient which depended on the time under load in CEB-FIP code [1]. Intending to investigate the influence of long-term loading on concrete columns, Choo et al [7] provided a realistic long-term concrete stress strain model that includes the effects of creep and shrinkage. Although meaningful in practical applications of concrete structures, strictly speaking, the model could not be reckoned as a solution of the creep-effect problem because the branch of stress strain curve after the long-term service load was increased quickly was an identical copy of the counterpart of the short-term stress strain curve, moreover, the model was not validated through comparison with experimental data.…”

Section: Introductionmentioning

confidence: 99%

Compressive behavior of concrete filled steel tubular columns subjected to long-term loading

Zhang

Shuo

Wang

2015

Thin-Walled Structures

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“…The decrease of strength due to creep was also considered by introducing a coefficient which depended on the time under load. Intending to investigate the influence of longterm loading on concrete columns, Choo et al [6] provided a realistic long-term concrete stress strain model that includes the effects of creep and shrinkage. Although meaningful in practical applications of concrete structures, strictly speaking, the model could not be reckoned as a solution of the creep-effect problem because the branch of the stress strain curve after the long-term service load was increased quickly, was an identical copy of the counterpart of the short-term stress strain curve, and moreover, the model was not validated through comparison with experimental data.…”

Section: Introductionmentioning

confidence: 99%