某大型现代宗教建筑火灾后评估及加固修缮施工关键技术
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摘要
以某大型宗教文化建筑火灾后的加固处理为例,宗教文化建筑艺术构件繁多,与之相连的钢架后置埋件需与混凝土结构进行拉结,导致火灾发生后后置于混凝土中的埋件与原混凝土在受热过程中因导热系数不一致而发生膨胀及拉裂性破坏,简述火灾后受损结构加固施工原则,并提出相应合理的梁、板、柱及塔厅转换层加固施工技术措施,取得良好效果。
Taking the reinforcement treatment of a large-scale religious and cultural building after the fire as an example,there are many kinds of religious arts and architectural arts,and the connected steel frame post-embedded pieces needed to be pulled together with the concrete structure,resulting in a concrete placed after fire. The embedded part and the original concrete have thermal expansion coefficient and expansion cracking due to the inconsistent thermal conductivity in the heating process. This paper briefly describes the principle of the damaged structure reinforcement after fire,and puts forward the corresponding reasonable beams, plates, columns and towers. The technical measures for the reinforcement of the conversion floor have achieved good results.
Taking the reinforcement treatment of a large-scale religious and cultural building after the fire as an example,there are many kinds of religious arts and architectural arts,and the connected steel frame post-embedded pieces needed to be pulled together with the concrete structure,resulting in a concrete placed after fire. The embedded part and the original concrete have thermal expansion coefficient and expansion cracking due to the inconsistent thermal conductivity in the heating process. This paper briefly describes the principle of the damaged structure reinforcement after fire,and puts forward the corresponding reasonable beams, plates, columns and towers. The technical measures for the reinforcement of the conversion floor have achieved good results.
引文
[1]奚文杰.钢筋混凝土结构火灾后的安全鉴定[J].住宅科技,2011,31(S1):288-290.
[2]中冶建筑研究总院有限公司,上海市建筑科学研究院.火灾后建筑结构鉴定标准:CECS252:2009[S].北京:中国计划出版社,2009.
[3]邓朗妮,刘晓凤,陆云鹏.基于BIM的火灾模拟与安全疏散研究[J].施工技术,2017,46(24):79-82.
[4]熊学玉,蔡跃,李春祥,等.预应力混凝土结构火灾研究现状及展望[J].自然灾害学报,2004(3):152-156.
[5]左岗,孙晓阳,颜卫东,等.塔厅建筑火灾后转换层钢斜撑液压顶升加固技术[J].施工技术,2018,47(8):25-29.
[2]中冶建筑研究总院有限公司,上海市建筑科学研究院.火灾后建筑结构鉴定标准:CECS252:2009[S].北京:中国计划出版社,2009.
[3]邓朗妮,刘晓凤,陆云鹏.基于BIM的火灾模拟与安全疏散研究[J].施工技术,2017,46(24):79-82.
[4]熊学玉,蔡跃,李春祥,等.预应力混凝土结构火灾研究现状及展望[J].自然灾害学报,2004(3):152-156.
[5]左岗,孙晓阳,颜卫东,等.塔厅建筑火灾后转换层钢斜撑液压顶升加固技术[J].施工技术,2018,47(8):25-29.