国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
2期
23-26
,共4页
桥梁%承载力%评估标准%荷载试验%校验系数
橋樑%承載力%評估標準%荷載試驗%校驗繫數
교량%승재력%평고표준%하재시험%교험계수
bridge%bearing capacity%evaluation criteria%load test%test coefficient
以校验系数的概念为切入点,详细分析了校验系数的影响因素;通过对不同规范和文献中校验系数参考值的对比,发现不同规范和文献对其规定很不一致,体现了现行公路桥梁检测规范不尽完善和科学。基于多座城市高架桥的荷载试验,应用数理统计方法归纳出了新建预应力混凝土简支板梁桥、T梁桥及连续钢箱梁桥的应力和挠度校验系数的常值范围。为完善我国城市高架桥的承载力评定规范和科学完成桥梁检测工程提供参考。
以校驗繫數的概唸為切入點,詳細分析瞭校驗繫數的影響因素;通過對不同規範和文獻中校驗繫數參攷值的對比,髮現不同規範和文獻對其規定很不一緻,體現瞭現行公路橋樑檢測規範不儘完善和科學。基于多座城市高架橋的荷載試驗,應用數理統計方法歸納齣瞭新建預應力混凝土簡支闆樑橋、T樑橋及連續鋼箱樑橋的應力和撓度校驗繫數的常值範圍。為完善我國城市高架橋的承載力評定規範和科學完成橋樑檢測工程提供參攷。
이교험계수적개념위절입점,상세분석료교험계수적영향인소;통과대불동규범화문헌중교험계수삼고치적대비,발현불동규범화문헌대기규정흔불일치,체현료현행공로교량검측규범불진완선화과학。기우다좌성시고가교적하재시험,응용수리통계방법귀납출료신건예응력혼응토간지판량교、T량교급련속강상량교적응력화뇨도교험계수적상치범위。위완선아국성시고가교적승재력평정규범화과학완성교량검측공정제공삼고。
In the light of the concept of test coefficients,the influential factors of test coefficients are analyzed in detail in the paper.After the reference values of test coefficients in different technical specifications and literature are compared,it is found that they are notably not in agreement with each other,which reflects that the existing criterion of inspection and evaluation for highway bridges are imperfect and unscientific.Upon the basis of the load tests of many urban viaducts,the constant range of the test coefficients of stress and deflection for newly-built pre-stressed concrete simply-supported plate girder,T-beam and continuous steel box bridges are summed up by the method of mathematical statistics in the paper.It provides a useful reference for perfecting the evaluation criteria of bearing capacity for urban viaducts in our country and completing bridge-testing projects scientifically.
