本文選題：磚砌體　切入點(diǎn)：壓剪破壞　出處：《建筑材料學(xué)報(bào)》2017年04期

【摘要】：為了確定等效體積單元(RVE)模型中磚砌體材料的破壞準(zhǔn)則,選取3種組砌方式、2種灰縫厚度和10種壓應(yīng)力水平,通過特別設(shè)計(jì)的夾具對144個(gè)磚砌體試件進(jìn)行了壓剪破壞試驗(yàn).綜合考慮試驗(yàn)結(jié)果和數(shù)值模擬對破壞面光滑性的要求,發(fā)現(xiàn)Drucker-Prager準(zhǔn)則可用于描述磚砌體材料的壓剪破壞,其參數(shù)可由試驗(yàn)結(jié)果進(jìn)行標(biāo)定.將標(biāo)定后的Drucker-Prager準(zhǔn)則應(yīng)用于RVE模型,對磚砌體試件抗壓試驗(yàn)和磚砌體墻偽靜力試驗(yàn)進(jìn)行了數(shù)值模擬,模擬結(jié)果與試驗(yàn)結(jié)果相符.研究手段和成果可為磚砌體材料或結(jié)構(gòu)的數(shù)值分析提供參考.
[Abstract]:In order to determine the failure criterion of brick masonry material in the equivalent volume unit (RVE) model, the compression shear failure tests of 144 brick masonry specimens were carried out by means of specially designed clamps, two kinds of ash joint thickness and 10 kinds of compressive stress levels were selected.Considering the test results and the requirements of numerical simulation for the smoothness of the failure surface, it is found that the Drucker-Prager criterion can be used to describe the compressive and shear failure of brick masonry materials, and its parameters can be calibrated by the test results.The calibrated Drucker-Prager criterion is applied to the RVE model. The compressive tests of brick masonry specimens and pseudostatic tests of brick masonry walls are numerically simulated. The simulation results are in good agreement with the experimental results.The research methods and results can provide a reference for the numerical analysis of brick masonry materials or structures.
【作者單位】： 上海理工大學(xué)環(huán)境與建筑學(xué)院;同濟(jì)大學(xué)結(jié)構(gòu)工程與防災(zāi)研究所;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51208300)
【分類號】：TU522

【相似文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 彭立磊;農(nóng)作物秸稈再生保溫磚砌體基本物理力學(xué)性能試驗(yàn)研究[D];鄭州大學(xué);2016年

，

本文編號：1686817