水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2014年
5期
18-22
,共5页
桥梁工程%预拱度%悬臂施工%高墩大跨连续刚构
橋樑工程%預拱度%懸臂施工%高墩大跨連續剛構
교량공정%예공도%현비시공%고돈대과련속강구
bridge engineering%prestressing camber%cantilever construction%the long-span continual ridge frame bridge with high piers
分析了在悬臂浇筑施工过程中影响梁体挠度的主要因素，根据桥梁结构理论计算方法，得出了在相应荷载作用下挠度的计算公式，对各施工阶段的梁体挠度进行合理的计算，再通过设置相应的预拱度，控制桥梁的施工线形。最后通过实际工程算例，证明了此方法设置预拱度的合理性，为以后同类桥梁的预拱度设置提供依据。
分析瞭在懸臂澆築施工過程中影響樑體撓度的主要因素，根據橋樑結構理論計算方法，得齣瞭在相應荷載作用下撓度的計算公式，對各施工階段的樑體撓度進行閤理的計算，再通過設置相應的預拱度，控製橋樑的施工線形。最後通過實際工程算例，證明瞭此方法設置預拱度的閤理性，為以後同類橋樑的預拱度設置提供依據。
분석료재현비요축시공과정중영향량체뇨도적주요인소，근거교량결구이론계산방법，득출료재상응하재작용하뇨도적계산공식，대각시공계단적량체뇨도진행합리적계산，재통과설치상응적예공도，공제교량적시공선형。최후통과실제공정산례，증명료차방법설치예공도적합이성，위이후동류교량적예공도설치제공의거。
Here ,the main factors influencing the bridge deflections were analyzed in construction progress .According to the theoretical calculation method of bridge structure ,the deflection calculation formula of bridge was obtained under cor-responding loads ,and then was applied in the bridge deflection calculation of different construction phases .The construc-tion alignment of the bridge was controlled by setting corresponding prestressing cambers .Finally through the example of practical engineering ,the rationality of setting prestressing cambers was validated .This result will provide the theoretical base for setting reasonable prestressing cambers of similar bridge engineerings .
