水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2001年
2期
62-64,67
,共4页
侯曙明%邓志深%袁志宇
侯曙明%鄧誌深%袁誌宇
후서명%산지심%원지우
预应力混凝土梁%张拉应力%伸长量%初应力值%计算%施工控制
預應力混凝土樑%張拉應力%伸長量%初應力值%計算%施工控製
예응력혼응토량%장랍응력%신장량%초응력치%계산%시공공제
桥梁预应力施工中经常会遇到实际伸长量与设计伸长量不符，且差值较大的情况。采用不同的计算公式计算出的伸长量也有不小的差异，通过部分连续梁张拉数据并针对施工中遇到的问题作了较详细的分析，总结出一套较适用于现场施工的钢绞线实测伸长量的计算方法。
橋樑預應力施工中經常會遇到實際伸長量與設計伸長量不符，且差值較大的情況。採用不同的計算公式計算齣的伸長量也有不小的差異，通過部分連續樑張拉數據併針對施工中遇到的問題作瞭較詳細的分析，總結齣一套較適用于現場施工的鋼絞線實測伸長量的計算方法。
교량예응력시공중경상회우도실제신장량여설계신장량불부，차차치교대적정황。채용불동적계산공식계산출적신장량야유불소적차이，통과부분련속량장랍수거병침대시공중우도적문제작료교상세적분석，총결출일투교괄용우현장시공적강교선실측신장량적계산방법。
During prestressing construction of bridge, it often appears the situation that the real elongation is not conformed to the design elongation and often with larger difference. The elongations calculated according to different calculation formulae are also different greatly. Based on the data of part continuous girders' tension and to counter the problems met during construction, a detailed analysis is carried out and a calculation method for real-measured elongation by steel twisted wire which is adaptable for site construction is summarized.
