施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
17期
70-72
,共3页
代金鹏%王起才%张戎令%武庆喜%杨阳
代金鵬%王起纔%張戎令%武慶喜%楊暘
대금붕%왕기재%장융령%무경희%양양
桥梁工程%系杆拱桥%索力%频率法%边界条件
橋樑工程%繫桿拱橋%索力%頻率法%邊界條件
교량공정%계간공교%색력%빈솔법%변계조건
bridges%tied arch bridges%cable forces%frequency method%boundary conditions
建立考虑吊杆轴向力影响的振动微分方程，对边界条件及吊杆计算长度两影响因素进行研究。基于频率法测试系杆拱桥吊杆索力原理，引入吊杆计算长度修正系数概念，将吊杆两端复杂的边界条件动力等效成两端铰接，并拟合出吊杆计算长度修正系数计算公式。将该式用于实桥吊杆索力测试，计算精度较高，满足工程要求。
建立攷慮弔桿軸嚮力影響的振動微分方程，對邊界條件及弔桿計算長度兩影響因素進行研究。基于頻率法測試繫桿拱橋弔桿索力原理，引入弔桿計算長度脩正繫數概唸，將弔桿兩耑複雜的邊界條件動力等效成兩耑鉸接，併擬閤齣弔桿計算長度脩正繫數計算公式。將該式用于實橋弔桿索力測試，計算精度較高，滿足工程要求。
건립고필조간축향력영향적진동미분방정，대변계조건급조간계산장도량영향인소진행연구。기우빈솔법측시계간공교조간색력원리，인입조간계산장도수정계수개념，장조간량단복잡적변계조건동력등효성량단교접，병의합출조간계산장도수정계수계산공식。장해식용우실교조간색력측시，계산정도교고，만족공정요구。
The vibration differential equation considering the effect of axial force is established, the boundary conditions and the calculation length are studied. According to the principle of the method of frequency measurement of cable force for tied arch bridge, this paper introduces the concept of suspender length correction factor, the complex boundary conditions of the both end dynamic equivalent into both hinged hinged model, and fitting the correction factor formula to calculate the length of suspender. The formula is applied to real bridge suspender cable force testing, in which the tested results are satisfied with the engineering requirements.
