CAJ | 학술논문

为预测待建系杆拱桥系梁挠度变化规律，依据相似原理制作了1∶16全尺寸缩尺模型。试验分析了全尺寸模型在吊杆张拉阶段各主要位置的挠度变化，对比分析了模型试验和实际桥梁在相同工况、相同位置处的挠度值。结果显示模型与实桥经换算在相同工况、相同位置处挠度误差在3％～8％，由此验证了缩尺模型的合理性，可用于待建桥梁相应位置挠度预测，从而保证成桥线形，使其满足设计要求。
위예측대건계간공교계량뇨도변화규률，의거상사원리제작료1∶16전척촌축척모형。시험분석료전척촌모형재조간장랍계단각주요위치적뇨도변화，대비분석료모형시험화실제교량재상동공황、상동위치처적뇨도치。결과현시모형여실교경환산재상동공황、상동위치처뇨도오차재3％～8％，유차험증료축척모형적합이성，가용우대건교량상응위치뇨도예측，종이보증성교선형，사기만족설계요구。
A 1∶16 scale model of a tied arch bridge was built,based on the similarity priciple,to predict its beam def lection.The def lections of signif icant members were tested during derrick tension.The def lection of the model and that of the real bridge were compared,both of which were under the same loading condition.The results indicate that the difference is between 3%~8%,validating the rationality of the bridge model.This model may be used to predict def lection of the pending bridge,improving bridge construction to satisfy the dimension requirement of bridge design.