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您的检索式：作者名="Eva Binder"
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| 1 | 霉菌毒素对家禽免疫系统的影响显示文摘 | 陈勇 张慧玲 周光宏 Eva Maria Binder | 2001 | 中国家禽2001，23，9： | 7 |
| 2 | Multiscale structural analysis inspired by exceptional load cases concerning the immersed tunnel of the Hong Kong-Zhuhai-Macao Bridge显示文摘This paper contains an assessment of the added value of multiscale material models for concrete in the context of macroscopic struc-tural analysis of(steel-reinforced)concrete structures.Two examples are discussed.They are inspired by the possibility of car accidents inside the immersed tunnel of the Hong Kong-Zhuhai-Macao Bridge(HZMB).The first example deals with vehicles crashing into the tunnel wall.The high-dynamic strengthening effect of concrete is studied based on an engineering mechanics model.The structural nature of the dynamic strength increase factor(DIF)is demonstrated by means of high-dynamic strength values measured on mortar cylinders of different size.Furthermore,the evolution of the DIF as a function of hardening of concrete at material ages beyond 28 days is studied.A validated multiscale model for concrete renders a customized analysis for the specific concrete used for the aforementioned tunnel possible.It is found that the DIF decreases with progressive hardening of concrete at material ages beyond 28 days.The second example is inspired by tunnel fires as may happen after car accidents.The study refers to thermal stresses in steel-reinforced concrete beams sub-jected to sudden heating.The thermal expansion coefficient of the concrete of the tunnel is quantified by means of a multiscale model.It is used as input for linear thermo-mechanical Finite-Element simulations of steel-reinforced concrete beams.The essential macroscopic simulation results are temperature distributions and associated stress fields.They are employed for top-down quantification of micro-scopic stress states inside the cement paste and the aggregates.This allows for quantifying two sources of microstructural stress fluctu-ations:(i)the macro-to-micro stress concentration and(ii)the mismatch of microscopic thermal expansion coefficients.In both examples,the multiscale models for concrete have increased the informative content of the structural simulations. | Hui Wang Eva Binder Herbert Mang Yong Yuan Bernhard Pichler | 2018 | Underground Space2018，3，4： | 0 |
| 3 | On the added value of multi-scale modeling of concrete显示文摘This review of the added value of multi-scale modeling of concrete is based on three representative examples.The first one is concerned with the analysis of experimental data,taken from four high-dynamic tests.The structural nature of the high-dynamic strength increase can be explained by using a multi-scale model.It accounts for the microstructure of the specimens.The second example refers to multi-scale thermoelastic analysis of concrete pavements,subjected to solar heating.A sensitivity analysis with respect to the internal relative humidity(RH)of concrete has underlined the great importance of the RH for an assessment of the risk of microcracking of concrete.The third example deals with multi-scale structural analysis of a real-scale test of a segmental tunnel ring.It has turned out that multi-scale modeling of concrete enables more reliable predictions of crack opening displacements in tunnel segments than macroscopic models taken from codes of practice.Overall,it is concluded that multi-scale models have indeed a significant added value.However,its degree varies with these examples.In any case,it can be assessed by means of a comparison of the results from three sources,namely,multi-scale structural analysis,conventional structural analysis,and experiments. | Jiaolong ZHANG Eva BINDER Hui WANG Mehdi AMINBAGHAI Bernhard LA PICHLER Yong YUAN Herbert A MANG | 2022 | Frontiers of Structural and Civil Engineering2022，16，1： | 0 |
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