广州建筑
廣州建築
엄주건축
GUANGZHOU ARCHTECTURE
2015年
4期
18-21
,共4页
斜拉桥%静动载试验%有限元法%试验评定
斜拉橋%靜動載試驗%有限元法%試驗評定
사랍교%정동재시험%유한원법%시험평정
cable stayed bridge%static dynamic load test%finite element analysis%test evolution
以新造珠江特大桥静动载试验为依托对大跨径斜拉桥静动载试验进行了研究，建立有限元模型对该桥进行理论计算，实测了该桥应力应变、挠度、位移及频率等参数，并对该桥的工作状况进行了试验评定，评定结果表明，其校验系数、残余变形满足规范要求；结构处于弹性工作阶段；实测频率大于理论值，其动力响应在正常范围内，满足相关规范及设计要求。
以新造珠江特大橋靜動載試驗為依託對大跨徑斜拉橋靜動載試驗進行瞭研究，建立有限元模型對該橋進行理論計算，實測瞭該橋應力應變、撓度、位移及頻率等參數，併對該橋的工作狀況進行瞭試驗評定，評定結果錶明，其校驗繫數、殘餘變形滿足規範要求；結構處于彈性工作階段；實測頻率大于理論值，其動力響應在正常範圍內，滿足相關規範及設計要求。
이신조주강특대교정동재시험위의탁대대과경사랍교정동재시험진행료연구，건립유한원모형대해교진행이론계산，실측료해교응력응변、뇨도、위이급빈솔등삼수，병대해교적공작상황진행료시험평정，평정결과표명，기교험계수、잔여변형만족규범요구；결구처우탄성공작계단；실측빈솔대우이론치，기동력향응재정상범위내，만족상관규범급설계요구。
Based on the new Pearl River Bridge static and dynamic load test, the paper studies the static and dynamic load test of large span cable-stayed bridge. Finite element model is established to theoretically calculate the bridge. Stress and strain, deflection, displacement and frequency parameters have been measured, and tests have been conducted to evaluate working conditions of the bridge. The evaluation results show that: (1) the calibration coefficient and residual deformation can meet the specification requirements; ( 2) the structure is in the elastic stage; (3) measurement frequency is greater than the theoretical value, the dynamic response is within the normal range, and meet the relevant standards and designing requirements.
