建筑施工·第45卷·第9期 1819
无梁楼盖混合结构体系民宿改造加固技术研究
冯军艇 顾夏英 殷 伟 陈婧娴
苏州中固建筑科技股份有限公司 江苏 苏州 215000
摘要: 为解决无梁楼盖混合体结构在改造加固过程中遇到的一些施工问题,如基础加固施工范围局限、既有建筑预制
结构拆除、防水等,通过对既有建筑开挖放坡的局限性进行分析,提出小范围阶梯放坡的开挖方式;通过局部无梁楼
盖开洞口,采用改变结构类型的措施,提高无梁楼盖建筑在空间利用上的多样性;拆除老旧预制人字梁存在的安全隐
患,采用下部结构加固、加固被拆除构件等方法,保证拆除过程中的安全性;针对传统屋面做法的不足,提出增设顺
水条形成顺水沟的方式,大大提高了瓦屋面的防水性能。上述方法有效地解决了无梁楼盖混合体系在改造中所遇到的
复杂情况,对于类似的无梁楼盖混合体系建筑改造再利用具有借鉴意义。
关键词: 无梁楼盖;改造加固;混合体系;预制人字梁;防水
中图分类号: TU 746 文献标志码: A 文章编号: 1004 -1001(2023)09 -1 819-0 3 DOI: 1 0.1 4144/j. c nki. jz sg .2 023.0 9.0 25
Research on Reconstruction and Reinforcement Technology
of Flat Slab Mixed Structure System for Homestay
FENG Junting GU Xiaying YIN Wei CHEN Jingxian
Suzhou Zhonggu Building Science and Technology Co., Ltd., Suzhou 215000, Jiangsu, China
Abstract: In o rd er to s o lv e th e c onstr u ctio n p ro b le m s e ncounte re d in th e p ro cess o f re constr u ctio n a nd re in fo rc em ent
o f fla t s la b c om posit e s tr u ctu re , s u ch a s th e lim it a tio n o f fo und atio n re in fo rc em ent c onstr u ctio n s c op e, th e d em olit io n o f
p re fa b ric ate d s tr u ctu re s o f e xis tin g b uild in g s, w ate rp ro ofin g a nd o th er is su es. T hro ug h th e a naly sis o f th e lim it a tio n o f
t h e e xc ava tio n s lo p e o f th e e xis tin g b uild in g s, th e e xc ava tio n m eth od o f s m all- s c ale s te p s lo p e is p ut fo rw ard , a nd th e
m easu re s o f c hang in g th e s tr u ctu ra l ty p e a re ta ke n to im pro ve th e d iv e rs it y o f s p ace u tiliz a tio n o f th e fla t flo or b uild in g s
b y o p enin g h ole s in lo cal fla t flo ors ; In o rd er to re m ove th e p ote ntia l s a fe ty h aza rd o f th e o ld p re fa b ric ate d h errin g bone
b eam , th e m eth od s o f r e in fo rc in g th e lo w er s tr u ctu re a nd r e in fo rc in g th e r e m ove d c om ponents a re a d op te d to e nsu re th e
sa fe ty in th e r e m ova l p ro cess. In v ie w o f th e s h ortc om in g s o f th e tr a d it io nal r o of m eth od , th e w ay o f a d din g a d ow nstr e am
str ip to fo rm a d ow nstr e am d it c h is p ro p ose d , w hic h g re atly im pro ve s th e w ate rp ro of p erfo rm ance o f th e tile ro of. T he
ab ove m eth od e ffe ctiv e ly s o lv e s th e c om ple x s it u atio n e ncounte re d in th e r e constr u ctio n o f th e m ix e d s yste m o f fla t s la b ,
a nd h as r e fe re nce s ig nif ic ance fo r th e r e constr u ctio n a nd
无梁楼盖混合结构体系民宿改造加固技术研究(论文).pdf