The stonecutters bridge , planned as a cable - stayed structure , will have a span of about 昂船洲大橋?qū)傩崩瓨蚴皆O(shè)計(jì),跨距約為
4 . the side girders , the deck and the lateral beams of the cable - stayed structure are cast - in - place at one time 4 、金馬大橋在施工過程中采用邊主梁、橫隔梁和橋面板三部分分階段一次現(xiàn)澆。
- ii - 5 . with the consideration that the cross section of the cable - stayed structure and the rigid frame structure ' s are not uniform , a new joint solution was presented for these different sections 5 、針對金馬大橋斜拉橋側(cè)主梁截面與t構(gòu)側(cè)主梁截面形式不統(tǒng)一的問題,提出了一種不同結(jié)構(gòu)斷面的新型連接方法。
2 . a new design and construction method different from the traditional way was used in jinma bridge . when cantilever the main girder of the cable - stayed structure , the longitudinal pre - stressed reinforcements are not tensioned at once 2 、金馬大橋在斜拉橋設(shè)計(jì)和施工中采用一種與傳統(tǒng)斜拉橋設(shè)計(jì)和施工不同的新方法,即懸臂澆筑斜拉橋主梁時采用無縱向預(yù)應(yīng)力筋的做法。
A new bridge structure cooperated by the single - towered cable - stayed structure and the rigid frame structure was presented . many aspects of jinma bridge are researched and analyzed , such as the design method , configuration of the superstructure , section choice of the tower , design and construction methods of the deep - water bases , the stiffness of the cooperated rigid frames , strengthening way in the tower . it is concluded that this new structure is the economical , aesthetic and suitable project for the large - span situation 主要內(nèi)容和結(jié)論如下: 1 、提出了獨(dú)塔斜拉橋與兩側(cè)剛構(gòu)相連接的新型協(xié)作體系斜拉橋結(jié)構(gòu)形式,并對該橋的方案比選、設(shè)計(jì)思路、橋面系結(jié)構(gòu)形式、塔柱截面設(shè)計(jì)、深水基礎(chǔ)的設(shè)計(jì)及施工方法、協(xié)作剛構(gòu)的剛度選取、塔柱的直束加固等方面作了詳細(xì)地計(jì)算分析和比較。