本文選題：公路橋梁 + 超重車　； 參考：《中外公路》2017年05期

【摘要】：超載現(xiàn)象的普遍存在給橋梁結(jié)構(gòu)帶來(lái)了極大的安全隱患。為獲取重型交通荷載特性以及重車過(guò)橋全過(guò)程造成的荷載效應(yīng),收集了美國(guó)加州3座橋梁WIM數(shù)據(jù),根據(jù)美國(guó)聯(lián)邦政府規(guī)定對(duì)超重車輛進(jìn)行分類,統(tǒng)計(jì)分析車輛類型及荷載構(gòu)成特點(diǎn)�；陔S機(jī)過(guò)程理論提出了多車道車輛并行荷載效應(yīng)計(jì)算模型,計(jì)算其中第Ⅱ類超重車產(chǎn)生的疊加荷載效應(yīng),并與中美現(xiàn)行橋梁設(shè)計(jì)規(guī)范值進(jìn)行對(duì)比。研究結(jié)果表明:第Ⅱ類超重車引起的荷載效應(yīng)較規(guī)范值大1.5~2.0倍,且跨長(zhǎng)越長(zhǎng),重車并行疊加荷載效應(yīng)越突出。
[Abstract]:The overloading phenomenon brings great hidden danger to the bridge structure. In order to obtain the load characteristics of heavy traffic and the load effect caused by the whole process of heavy vehicle crossing, the WIM data of three bridges in California were collected, and the overweight vehicles were classified according to the regulations of the United States Federal Government. The characteristics of vehicle type and load composition are analyzed statistically. Based on the stochastic process theory, a parallel load effect calculation model for multi-lane vehicles is proposed. The superposition load effect caused by class 鈪，

本文編號(hào)：1986206