本文選題：鋼拱橋 + 構(gòu)件評(píng)級(jí)　； 參考：《橋梁建設(shè)》2017年04期

【摘要】：為對(duì)大跨度鋼拱橋構(gòu)件制定合理的檢查和養(yǎng)護(hù)策略,根據(jù)該類橋梁的特點(diǎn)開(kāi)展構(gòu)件評(píng)級(jí)體系研究。從安全性和耐久性2個(gè)角度對(duì)構(gòu)件進(jìn)行評(píng)級(jí),構(gòu)建多個(gè)安全性和耐久性因子,對(duì)安全性和耐久性因子的分析結(jié)果設(shè)置一個(gè)評(píng)分標(biāo)準(zhǔn),采用層次分析法確定各因子的權(quán)重,計(jì)算構(gòu)件的安全性和耐久性綜合得分,據(jù)此建立構(gòu)件評(píng)級(jí)矩陣,并制定適當(dāng)?shù)臉蛄簶?gòu)件檢查和養(yǎng)護(hù)策略。采用該構(gòu)件評(píng)級(jí)體系對(duì)廣州新光大橋進(jìn)行構(gòu)件評(píng)級(jí),結(jié)果顯示,該橋主跨橋面橫梁的安全性等級(jí)偏低,邊、主跨吊桿的耐久性等級(jí)也偏低,在制定檢查周期和養(yǎng)護(hù)策略時(shí),應(yīng)重點(diǎn)關(guān)注這幾類構(gòu)件。
[Abstract]:In order to establish a reasonable inspection and maintenance strategy for long-span steel arch bridge members, the component rating system is studied according to the characteristics of this kind of bridges. According to the two aspects of safety and durability, the members are rated, and several safety and durability factors are constructed. The analysis results of the safety and durability factors are evaluated by a scoring standard, and the weight of each factor is determined by the analytic hierarchy process (AHP). The comprehensive scores of safety and durability of the components are calculated, according to which the component rating matrix is established, and appropriate inspection and maintenance strategies for bridge members are formulated. The result shows that the safety grade of the bridge deck crossbeam is on the low side, and the durability grade of the main span suspension rod is also low. When the inspection period and maintenance strategy are formulated, the system is used to grade the components of the bridge, and the result shows that the safety grade of the bridge deck beam is low, and the durability grade of the main span suspension rod is also low. Attention should be paid to these types of components.
【作者單位】： 華南理工大學(xué)土木與交通學(xué)院;華南理工大學(xué)亞熱帶建筑科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51678252) 華南理工大學(xué)亞熱帶建筑科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室基金項(xiàng)目(2013ZA01)~~
【分類號(hào)】：U448.22

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