浅析桥梁裂缝产生原因及防治措施摘要近几十年来，我国的经济水平出现了非常大的提高，出现了越来越多的车辆，交通运输量也日益增长，同时，车辆载重也越来越大，因此在桥梁的运行使用过程中出现了非常多的病害，其中最为常见的就是桥梁裂缝。因此，对我国现有的桥梁裂缝成因的研究日益重要。对桥梁裂缝成因的分析是裂缝预防与加固的依据，如果对裂缝不加分析就开始修补加固，不仅达不到想要的效果，还有可能造成额外的危害。在对桥梁裂缝原因分析的基础上，对现有桥梁进行裂缝预防，对已有裂缝的桥梁进行桥梁裂缝加固。本文详细讨论了桥梁裂缝产生的各种各样原因，在此基础之上，更进一步研究了桥梁裂缝的预防与修补加固，具体包括：桥梁裂缝的预防，桥梁裂缝的加固程序以及修补加固处理措施。通过对桥梁裂缝进行预防与修补加固，可以使桥梁能够使用更长的时间，提高桥梁的承载能力。关键词：桥梁裂缝；裂缝预防，裂缝加固AbstractWiththerapiddevelopmentofourcountry,moreandmorevehicleshaveemerged,andthetrafficvolumehasalsobeenincreasing.Atthesametime,thevehicleloadhasalsoincreased,causingmanykindsofdiseasesintheuseofbridgesinChina,amongwhichthemostcommonThebridgecracks.Therefore,itisincreasinglyimportanttostudytheexistingcausesofbridgecracksinChina.Theanalysisofthecauseofcracksinbridgesisthebasisforpreventionandreinforcementofcracks.Ifcracksarenotanalyzed,theywillberepairedandstrengthened,notonlyfailingtoachievethedesiredeffect,butalsocausingadditionaldamage.Basedontheanalysisofthecausesofcracksinbridges,crackspreventionisperformedonexistingbridges,andbridgeswithexistingcracksarereinforced.Thispaperdiscussesindetailthecausesofcracksinbridges.Basedonthis,thepreventionandreinforcementofbridgecracksarefurtherstudied,includingthepreventionofbridgecracks,thereinforcementofcrackedbridges,andreinforcementmeasures.Throughthepreventionandreinforcementofbridgecracks,itispossibletoextendtheusetimeofbridgesandimprovethebearingcapacityofbridges.KeyWords:bridgecracks，crackpreention，crackreinforcement目录摘要.....................................................................................................................I1绪论.................................................................................................................12桥梁裂缝产生原因...............................................................................................42.1概述..........................................................................................................42.2桥梁裂缝产生原因.....................................................................................42.2.1荷载的原因......................................................................................42.2.2温度变化原因..................................................................................42.2.3收缩原因.........................................................................................52.2.4地基变形原因..................................................................................52.2.5钢筋锈蚀原因...................................................................................52.2.6混凝土冻胀原因................................................................................52.2.7施工材料质量原因............................................................................62.2.8施工工艺质量原因............................................................................62.3本章小结.............................................................................................
