CAJ | 학술논문

目前，我国桥梁的发展进入新建和维修加固并举的阶段，而检测技术是对旧有桥梁检测评估和可靠鉴定的必要前提和依据。基于无损检测技术和动静载荷试验的结构测试方法，并结合 MIDAS 有限元模拟分析，综合分析评价了某现役钢筋混凝土“T”形梁桥的工作和运营性能。结果表明，该桥“T”梁构件普遍存在裂缝、钢筋锈胀等破损现象，但结构整体处于弹性工作状态，实测振型与频率和理论计算值较为一致，承载力满足汽-15荷载等级要求。检测技术探讨及其工程应用为该桥的养护维修提供了可靠依据，并为同类结构的加固改造提供了借鉴。
목전，아국교량적발전진입신건화유수가고병거적계단，이검측기술시대구유교량검측평고화가고감정적필요전제화의거。기우무손검측기술화동정재하시험적결구측시방법，병결합 MIDAS 유한원모의분석，종합분석평개료모현역강근혼응토“T”형량교적공작화운영성능。결과표명，해교“T”량구건보편존재렬봉、강근수창등파손현상，단결구정체처우탄성공작상태，실측진형여빈솔화이론계산치교위일치，승재력만족기-15하재등급요구。검측기술탐토급기공정응용위해교적양호유수제공료가고의거，병위동류결구적가고개조제공료차감。
At present, the development of our country into the new bridge and repair and reinforcement of both the stage and the detection technique is detection and evaluation of the old bridge and reliable identification of a necessary prerequisite and basis. Based on non-destructive testing techniques and test static and dynamic load structural test methods, combined with MIDAS finite element analysis, a comprehensive analysis and evaluation of the existing reinforced concrete work and operational performance “T” shaped girder bridge. The results show that the bridge “T” beam members’ widespread cracks, steel corrosion and other damage occurred, but the overall structure in elastic state, is consistent with the measured modal frequencies and theoretical calculations, load bearing capacity to meet the grade requirements steam -15. Detection Techniques and engineering application maintenance and repair of the bridge to provide a reliable basis, and provide a reference for the reinforcement of the same structure.