1、目錄摘要.......................................................................................................II目錄......................................................................................................III一、工程

2、概況............................................................................................41、工程概述..............................................................................................42、結(jié)構(gòu)設(shè)計(jì)形式................

3、......................................................................4二、施工準(zhǔn)備............................................................................................51、技術(shù)及施工現(xiàn)場(chǎng)準(zhǔn)備.......................................

4、...................................52、張拉設(shè)備選用......................................................................................53、原材、張拉設(shè)備檢驗(yàn)..........................................................................5三、張

5、拉工藝............................................................................................71、波紋管的敷設(shè)與錨墊板的安裝..........................................................72、鋼鉸線下料...........................................

6、...............................................83、穿束....................................................................................................8四、預(yù)應(yīng)力張拉............................................................

7、..........................10五、孔道壓漿、封錨..............................................................................17六、結(jié)束語(yǔ)..............................................................................................20參考

8、文獻(xiàn)..................................................................................................20二、施工準(zhǔn)備二、施工準(zhǔn)備1、技術(shù)及施工現(xiàn)場(chǎng)準(zhǔn)備、技術(shù)及施工現(xiàn)場(chǎng)準(zhǔn)備⑴施加預(yù)應(yīng)力前對(duì)梁體進(jìn)行檢查，外觀和各部尺寸必須符合質(zhì)量標(biāo)準(zhǔn)要求，且箱梁混凝土強(qiáng)度達(dá)到100％。⑵對(duì)鋼絞線理論伸長(zhǎng)值進(jìn)行計(jì)算，并制成表格，指導(dǎo)預(yù)應(yīng)力張拉。⑶千斤頂、油表已

9、經(jīng)標(biāo)定完畢，同時(shí)根據(jù)油表標(biāo)定的結(jié)果繪制油表讀數(shù)與張拉力的曲線，并根據(jù)曲線確定0.15F、0.30F、F相應(yīng)張拉力對(duì)應(yīng)的油表讀數(shù)。⑷組建專業(yè)預(yù)應(yīng)力張拉隊(duì)伍，選擇具有豐富張拉施工經(jīng)驗(yàn)的人員進(jìn)行張拉施工。2、張拉設(shè)備選用、張拉設(shè)備選用本工程最大張拉力為1810KN因此選用YCW250B型千斤頂數(shù)量4臺(tái)同時(shí)配備4臺(tái)ZB4500型電動(dòng)油泵，千斤頂要求配好標(biāo)定的壓力表。YCW250B型千斤頂安裝時(shí)搭設(shè)支架，用倒鏈吊起，套入鋼絞線內(nèi)張拉。壓漿設(shè)備:活