CAJ | 학술논문

针对桥梁支座更换问题，利用桥梁博土V3．2．0程序计算支座顶升对3跨变截面连续梁受力状态的影响．以保证梁体结构的安全。分析结果显示：梁体截面应力增量与顶升位移近似呈线性关系；顶升强迫位移10mm对粱体受力影响较小，最大增量为5．9％；且设置支座顶升最大强迫位移为10mm作为支座更换限制高度能保证梁体安全。
침대교량지좌경환문제，이용교량박토V3．2．0정서계산지좌정승대3과변절면련속량수력상태적영향．이보증량체결구적안전。분석결과현시：량체절면응력증량여정승위이근사정선성관계；정승강박위이10mm대량체수력영향교소，최대증량위5．9％；차설치지좌정승최대강박위이위10mm작위지좌경환한제고도능보증량체안전。
Based on bearing replacement of bridge,the finite element sofeware Dr.Bridge V3.2.0 was applied to calculate jacking up of bearing replacement influence on the structural peformance of variational continuous beams to ensure security of structure. The analysis results show that the section stress increment of beam body and bearing displacement of jacking up pesents a approximate linear relationship,the forced displacement of 10 mm has little influence on beam body and the largest increment was 5.9% ,forced displacement of 10 mm can be taken as limit height connidering the beam body safety.