現(xiàn)澆箱梁及滿(mǎn)堂支架施工方案

1、1目錄1、工程概況.............................................................................................12、編制依據(jù).............................................................................................23、施工計(jì)劃...........

2、..................................................................................23.1工程起訖時(shí)間............................................................................23.2主要材料計(jì)劃..........................................

3、..................................23.3施工人員配置............................................................................44、施工工藝.............................................................................................

4、64.1技術(shù)參數(shù)....................................................................................64.2工藝流程....................................................................................64.3施工方法............................

5、........................................................74.4檢查驗(yàn)收..................................................................................225、計(jì)算書(shū)...................................................................

6、............................225.1箱梁結(jié)構(gòu)及計(jì)算理念..............................................................225.2一般截面箱身支架設(shè)計(jì)..........................................................235.3梁端截面箱身支架設(shè)計(jì)............................

7、..............................255.4支架剛度（撓度）驗(yàn)算...........................................................275.5支架穩(wěn)定性驗(yàn)算......................................................................275.6底模強(qiáng)度計(jì)算.......................

8、...................................................285.7橫梁強(qiáng)度計(jì)算..........................................................................305.8地基承載力計(jì)算......................................................................31

9、5.9支架抗風(fēng)荷載計(jì)算..................................................................31中鐵十八局集團(tuán)有限公司簡(jiǎn)蒲高速公路JPTJ4標(biāo)段項(xiàng)目經(jīng)理部現(xiàn)澆箱梁施工方案11、工程概況工程概況雷家互通K214360.5主線(xiàn)橋上跨成資快速路中橋，根據(jù)橋位處的被交路、地形及地貌特點(diǎn)，該主線(xiàn)橋采用一聯(lián)420m現(xiàn)澆預(yù)應(yīng)力混凝土連續(xù)箱梁。本橋分別位于緩和曲線(xiàn)（起始樁號(hào)：K214317.

10、03，終止樁號(hào)：K214380.804）和直線(xiàn)（起始樁號(hào)：K214380.804，終止樁號(hào)：K214403.97）上，縱斷面縱坡0.5%。橋面寬度左幅為18.67~20.5m單箱三室截面（如圖11），梁高1.3m。下部結(jié)構(gòu)采用圓柱式墩，肋板式橋臺(tái)，基礎(chǔ)為鉆孔樁；箱梁采用預(yù)應(yīng)力C50混凝土連續(xù)箱梁，頂面設(shè)2%橫坡，內(nèi)外側(cè)懸臂為2.5m，箱梁頂板厚0.25~0.45m，底板厚0.22~0.60m，兩側(cè)腹板板厚0.45~0.85m。圖11單箱