Research on the seismic behavior of HPC shear walls after fire

Li, Jie; Jiang, Fangming

doi:10.1007/bf02481574

Cited by 16 publications

(2 citation statements)

References 4 publications

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“…Temperature change alter the physical quantities of the linear model [17] . High temperature tests have been carried out on high-performance concrete and the investigation demonstrates that high temperature reduces the seismic performance of high-performance concrete shear walls [18] . The seismic analysis of the base-isolated structure affected by the fire shows that the occurrence of fire will obviously increase the ductility requirements of the structure, which means that the seismic performance of the structure will be reduced [19] .…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic analysis of high-strength concrete Bridge under post-fire earthquakes considering hydrodynamic effects

Yun,

Liu

2024

Preprint

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A host of investigations on the fire resistance of concrete structures after-earthquakes and the fire resistance of concrete structures. This study utilized the linear interpolation method to deduce the curve relationship of elastic modulus and stress with temperature of high-strength concrete C60, and then the nonlinear dynamic analysis of high-strength concrete bridge structures under post-fire earthquake action is evaluated. The nonlinear dynamic response laws of high-strength concrete total bridge structures under different water depths are evaluated. The seismic capacity of high-strength concrete bridge structures under the influence of hydrodynamic effects and temperature effects is comparatively evaluated, and the results show that the hydrodynamic effect provides the external force, the temperature effect changes the concrete material properties, and the combined effect of the temperature effect and the hydrodynamic effect is significant than the effect independent of the temperature effect and the hydrodynamic effect. It is complicated and significantly increases the displacement and stress response of the bridge. The combined effects of the hydrodynamic effect and the temperature effect cannot merely be characterised as a linear superposition of the two single actions. The temperature effect on the structure is more significant than the hydrodynamic effect.

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Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic analysis of high-strength concrete Bridge under post-fire earthquakes considering hydrodynamic effects

Yun,

Liu

2024

Preprint

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“…Since the second half of the 1990s there is a renewed interest in the modeling of concrete at high and very high temperature [1][2]. Studies on bond stress between concrete and deformed bars show that bond stress is made up of three components namely: (1) chemical adhesion; (2) friction; and (3) mechanical interaction between concrete and steel [3][4].…”

Section: Introductionmentioning

confidence: 99%

Shear Strength between HPC and Rolled Steel Plate after Elevated Temperatures

Zhao¹,

Yin²,

Zhu³

et al. 2015

Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications

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This paper had developed C100 high-performance concrete (HPC). Mechanical properties of high-performance concrete after evaluated temperatures were investigated. Besides, this paper had summarized the extrinsic characteristics of HPC after evaluated temperatures, which was effectively applied in evaluating the temperature experience of concrete structures. Shear strength between HPC and rolled steel plate after evaluated temperatures was experimentally studied with the facilities of specially designed loading device. Mathematical model of shear strength was proposed, which can be used in both engineering and numerical simulation.

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Experimental study on mechanical behavior of thermally damaged grouted sleeve splice under cyclic loading

Liu

Ding

Xie

2020

Structural Concrete

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An experimental program concerning 48 specimens of grouted sleeve splices, first heated up to 600°C and then subjected to cyclic loading was presented and discussed in this study. Similar rebar splices were often used in the precast concrete structures designed for seismic regions. The temperature of the splice and the compressive strength of the grout were the main variables considered in this study. It is found that the temperature mainly affected the peak bearing capacity of the grout and the failure pattern of the connection. In fact, the typical failure pattern at room temperature (rebar fracture outside the sleeve) turned to rebar pullout of the sleeve above 400°C, which indicated that below this temperature grout‐to‐rebar bond kept most of its original efficacy. On the contrary, bond failure occurred for all specimens at 600°C because of rebar slip. A calculation method was proposed as well to evaluate the peak bearing capacity of grouted sleeve splice, based on the load transferring mechanisms of the bond between grout‐to‐rebar and sleeve‐to‐grout. The conducted experimental study and analysis provide a better understanding on the bond mechanism of thermally damaged grouted sleeve splices subjected to cyclic loading.

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Research on the seismic behavior of HPC shear walls after fire

Cited by 16 publications

References 4 publications

Nonlinear dynamic analysis of high-strength concrete Bridge under post-fire earthquakes considering hydrodynamic effects

Nonlinear dynamic analysis of high-strength concrete Bridge under post-fire earthquakes considering hydrodynamic effects

Shear Strength between HPC and Rolled Steel Plate after Elevated Temperatures

Experimental study on mechanical behavior of thermally damaged grouted sleeve splice under cyclic loading

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