The numerical value analysis of contract and creep on pc continuous beam bridge 連續(xù)梁橋收縮與徐變的數(shù)值分析
Statistical analysis of live load on continuous beam bridge of cantilever casting during construction 懸澆連續(xù)梁橋主梁施工活載統(tǒng)計分析
Research on the sliding mode of semi - active control on vertical vibration for continuous beam bridge 連續(xù)梁橋豎向振動半主動滑動模式控制研究
Influence of dynamic characteristics of lead - rubber bearing on seismic response of continuous beam bridge 鉛芯橡膠支座動力特性對連續(xù)梁橋地震響應(yīng)的影響
Construction monitor control and analysis of unsymmetrical side - span pre - stressed concrete continuous beam bridge 不對稱邊跨預(yù)應(yīng)力混凝土連續(xù)梁橋施工監(jiān)控
In recent years prestressed concrete continuous beam bridge is applied widely with strong rivalrousness 預(yù)應(yīng)力混凝土連續(xù)梁橋以其強大的競爭力,近年來得到迅猛發(fā)展。
Completed in 1974 , the bridge was the longest continuous beam bridge in the world then 全長2560米,橋?qū)? . 2米,最大跨徑73米,是當(dāng)時世界上最長的跨海預(yù)應(yīng)力混凝土連續(xù)梁橋。
At present , crack phenomenon always appears in long span prestressed concrete continuous beam bridges used , the reason of which is that the structure prestressed loss is estimated lower 目前,在部分已建成運營的大跨度預(yù)應(yīng)力混凝土連續(xù)梁橋的不同部位出現(xiàn)了不同程度的開裂現(xiàn)象,多數(shù)是由于施工時對結(jié)構(gòu)預(yù)應(yīng)力損失估計不足所造成的。
Normally there are hundreds of cables in a continuous beam bridge , especially in an indeterminate structure . and the shape of the prestressing cable is complicated , so it has great difficulties in its drawing 預(yù)應(yīng)力鋼束因其線形變化多,大都又呈曲線狀,而對于大型復(fù)雜的預(yù)應(yīng)力結(jié)構(gòu),如連續(xù)梁橋,往往有幾百根鋼束,幾十種形狀,所以鋼束圖的繪制任務(wù)繁重。
The no . 4 bridge of xiangfan bridge over - crossing hanriver is a specially long span river bridge on freeway by tieing freeway form hanshi to xiangjing . the main span is 70 + 5 * 120 + 70m . it is a prestressed concrete continuous beam bridge 襄樊漢江四橋是漢十-襄荊高速公路連接線上跨越漢江的一座特大橋,主跨為70 + 5 * 120 + 70米,其結(jié)構(gòu)型式為預(yù)應(yīng)力混凝土連續(xù)梁橋。