發(fā)布時間：2018-08-24 13:01

【摘要】：處于自然環(huán)境中的橋面鋪裝層在橋面板的受力、橋梁的耐久性、行車的舒適性等方面都起著重要的作用,鋪裝層的溫度隨大氣溫度的不斷變化而變化,特別是對于寒冷及大溫差地區(qū),溫度變化將會在橋面鋪裝層中產(chǎn)生較大的拉應(yīng)力,致使鋪裝層開裂。為了減少由于溫度作用對橋面鋪裝層的損害,使其具有更好的使用性能,對鋪裝層的溫度場進(jìn)行研究分析已經(jīng)成為一項重要的科研內(nèi)容。本文采用現(xiàn)場實測和縮尺模型試驗測試的方法對混凝土簡支梁橋瀝青混凝土鋪裝層溫度場進(jìn)行了研究,并利用有限元軟件對溫度場進(jìn)行了模擬,通過實測與數(shù)值模擬結(jié)果的對比分析結(jié)果表明:以氣象數(shù)據(jù)為基礎(chǔ),利用ABAQUA有限元軟件建模的方法可以較準(zhǔn)確的模擬橋面鋪裝層溫度場的變化過程,有限元計算結(jié)果與實測結(jié)果符合良好。
[Abstract]:The bridge deck pavement in the natural environment plays an important role in the stress of the bridge deck, the durability of the bridge, the comfort of driving, and so on. The temperature of the pavement changes with the change of atmospheric temperature. Especially for the cold and large temperature difference regions, the temperature variation will produce a large tensile stress in the bridge deck pavement, which will lead to the cracking of the pavement. In order to reduce the damage of bridge deck pavement due to the effect of temperature and make it have better performance, it has become an important scientific research content to study and analyze the temperature field of pavement. In this paper, the temperature field of asphalt concrete pavement of simply supported concrete bridge is studied by the method of field measurement and scale model test, and the temperature field is simulated by finite element software. The comparison and analysis of measured and numerical simulation results show that based on meteorological data, the change process of temperature field of bridge deck pavement can be simulated more accurately by using ABAQUA finite element software modeling method. The results of finite element calculation are in good agreement with the measured results.
【作者單位】： 內(nèi)蒙古工業(yè)大學(xué)土木工程學(xué)院;巴彥淖爾市審計局;
【基金】：內(nèi)蒙古交通科技項目(NJ-2009-02) 內(nèi)蒙古工業(yè)大學(xué)科學(xué)研究項目(ZS201012)
【分類號】：U443.33

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

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本文編號：2200894