- 摘 要
-
（1 合肥工業(yè)大學(xué)土木與水利工程學(xué)院， 合肥 230009；2 中國地震局工程力學(xué)研究所地震工程與工程振動重點(diǎn)實(shí)驗(yàn)室， 哈爾濱 150080）
［摘要］某單層既有磚混結(jié)構(gòu)廠房因使用功能的變化，需在原有建筑上再建一層，在對加層后廠房抗震驗(yàn)算中發(fā)現(xiàn)，該廠房局部墻柱及橫墻承載力不足。為了使加層后廠房在滿足現(xiàn)行規(guī)范的前提下改造工程量最小，通過方案優(yōu)化比較，決定在原結(jié)構(gòu)的基礎(chǔ)上，采用增大墻柱截面、降低層高及控制墻體高厚比、新增圈梁等措施來提升加層后廠房整體抗震性能。通過PKPM及SAP2000有限元軟件進(jìn)行整體分析，得出加層后廠房在多遇及罕遇地震下的抗震性能良好，能滿足現(xiàn)行規(guī)范相關(guān)要求；最后對此類空曠磚混廠房加層改造設(shè)計(jì)中出現(xiàn)的難點(diǎn)問題進(jìn)行分析、總結(jié)，供同類工程參考。
［關(guān)鍵詞］磚混廠房； 加層改造； 抗震驗(yàn)算； 時程分析； 既有建筑； 墻體高厚比
中圖分類號：TU398+.9文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)24-0074-06
Analysis of additional floor and reinforcement design of a spacious single-story brick-concrete factory
CHEN Daozheng1,2, WANG Yangfan1
（1 College of Civil Engineering, Hefei University of Technology, Hefei 230009, China；2 Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics，China Earthquake Administration， Harbin 150080, China)
Abstract:A single-storey existing brick-concrete factory needs another layer on top of the existing building due to the change of use function. During the seismic check of the retrofitted factory, it was found that the partial wall columns and cross walls of the factory had insufficient bearing capacity. In order to minimize the amount of renovation works in the retrofitted factory, under the premise of meeting the current code, through the scheme optimization comparison, it was decided to improve the overall seismic performance of the retrofitted factory by increasing the wall column section, lowering the floor height and controlling the wall height-to-thickness ratio, adding new ring beams and other measures on the basis of the original structure. The overall analysis was carried out by PKPM and SAP2000 finite element software, and it was concluded that the seismic performance of the retrofitted factory under frequent and rare earthquakes was good and could meet the relevant requirements of the current code. Finally, the issues and difficulties of such spacious single-storey brick-concrete factory reconstruction were analyzed and summarized, in order to provide references for future similar project.
Keywords:brick-concrete factory; additional floor reinforcement; seismic check; time history analysis; existing building; height-to-thickness ratio
*中國地震局工程力學(xué)研究所基本業(yè)務(wù)費(fèi)專項(xiàng)資助（2020EEEVL0417）。
作者簡介：陳道政，博士，教授，一級注冊結(jié)構(gòu)工程師，Email:2361601802@qq.com；通信作者：王揚(yáng)帆，碩士研究生，Email:1370227498@qq.com。
- 下載地址
-
