管道振动疲劳损伤机理及预测方法研究
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王香红.考虑腐蚀影响的海底悬跨管道振动疲劳特性及防护研究[D].西安建筑科技大学,2022.
高喜峰,廖宏运,徐万海.非对称边界悬跨管道的涡激振动疲劳特性分析[J].哈尔滨工程大学学报,2019,40(05):960-966.Structural analysis of the key points of roof waterproofing renovation construction of existing buildings —— Taking the roof waterproofing upgrading project of library of Jiangxi Vocational College of Agricultural Engineering as an exampleLihua Qian Yu ZouJiangxi College of Agricultural Engineering, Yichun, Jiangxi, 331200, ChinaAbstract This article uses the roof waterproofing renovation project of the library at Jiangxi Agricultural Engineering Vocational College as a case study to conduct a structured analysis of the key points in the construction of existing building roof waterproofing renovations. In this project, a detailed investigation was conducted on the condition of the existing roof, including issues such as the aging and cracking of the original waterproof layer, which forms the basis for formulating an effective renovation plan. The preparatory work before construction is crucial, involving material selection and eq
uipment testing to ensure that the materials meet the roof ’s requirements. During the critical construction phase, it is essential to avoid damaging the roof structure when removing the waterproof layer; when installing the new waterproof layer, thorough base treatment is necessary to ensure strong adhesion, and the construction techniques and thickness of the materials must be precisely controlled; reinforcing the nodes can effectively prevent leakage. Through practical engineering experience, the key technical points and quality control methods are summarized, providing a reference for similar projects in humid and rainy regions, aiming to improve the quality and effectiveness of such renovation projects and reduce the risk of leakage.Keywordsexisting building; roof waterproofing transformation; SBS modified bitumen membrane; detailed nodes; construction technology既有建筑屋面防水改造施工要点的结构化分析——以江西农业工程职业学院图书馆屋面防水升级改造项目为例钱立华邹宇江西农业工程职业学院,中国·江西宜春 331200摘要本文以江西农业工程职业学院图书馆屋面防水升级改造项目为研究实例,对既有建筑屋面防水改造施工要点开展结构化分析。在项目中,针对既有屋面的状况进行了详细勘察,包括原有防水层老化、裂缝等问题,这是制定有效改造方案的基础。施工前期准备工作至关重要,涵盖材料选择与设备调试,确保材料性能匹配屋面需求。在关键施工环节,防水层拆除需避免对屋面结构造成损伤;新防水层施工时,基层处理要彻底以保证粘结牢固,精确控制材料的施工工艺及厚度;节点部位加强处理能有效防止渗漏。通过工程实践验证,总结施工技术要点与质量控制方法,为湿热多雨地区的同类工程提供参考,旨在提升此类改造工程的质量与效果,降低渗漏风险。关键词既有建筑;屋面防水改造;SBS改性沥青卷材;细部节点;施工工艺【作者简介】钱立华(1988-),男,中国浙江杭州人,本科,高职讲师,从事土木工程研究。1 引言随着建筑使用年限增加,既有建筑屋面防水层易出现老化、开裂等问题,导致渗漏现象频发,影响建筑功能与结构安全。截至2023年,城镇建筑总量达680亿㎡,30%以上存在屋面渗漏问题。屋面渗漏存在较多的危害性,首先是功能层面:损坏藏书设备、影响建筑使用功能;其次是结构层面:水分侵蚀钢筋导致混凝土碳化;最后是经济层面:维修成本占建筑总维护费用的40%以上
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DOI: http://dx.doi.org/10.12345/gcjsygl.v9i11.28774
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