- 摘 要
-
(1 中國人民大學(xué)校園建設(shè)管理處, 北京 100872; 2 北京維拓時代建筑設(shè)計股份有限公司, 北京 100025)
摘要: 醫(yī)療類建筑作為重點設(shè)防類公共建筑,如何保證其在地震過程中“功能不中斷”一直是備受關(guān)注的研究課題. 對于高烈度區(qū)醫(yī)療建筑,《建設(shè)工程抗震管理條例》(國令第 744 號)提出需進(jìn)行多遇及設(shè)防地震工況的包絡(luò)設(shè)計. 而單純通過加大構(gòu)件截面尺寸的傳統(tǒng)設(shè)計方法往往效果不佳,且易出現(xiàn)“肥梁胖柱”現(xiàn)象. 為了有效控制結(jié)構(gòu)構(gòu)件的截面尺寸從而滿足建筑的使用要求,采用在結(jié)構(gòu)中增設(shè)金屬阻尼器的消能減震設(shè)計方法,對減震及非減震結(jié)構(gòu)進(jìn)行不同地震工況下的時程分析. 研究結(jié)果表明:減震結(jié)構(gòu)在設(shè)防地震作用下能夠滿足《建設(shè)工程抗震管理條例》(國令第 744 號)中正常使用的各項性能指標(biāo);同時在罕遇地震作用下能夠較好實現(xiàn)“強(qiáng)柱弱梁”的設(shè)計目標(biāo),抗震性能較純框架體系好. 通過模擬醫(yī)療冷庫用房環(huán)境進(jìn)行阻尼器的性能測試,進(jìn)一步證明了低溫環(huán)境下阻尼器力學(xué)性能穩(wěn)定,滯回曲線飽滿.
關(guān)鍵詞: 醫(yī)療建筑; 金屬阻尼器; 消能減震; 時程分析; 低溫環(huán)境
中圖分類號:TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)06-0100-06
DOI:10. 19701 / j. jzjg. 20221839
Application study of energy dissipation and vibration reduction technology of medical buildings in high intensity area
YE Liying1, LIU Yunhua1, DAI Guoqiang2
(1 Campus Construction Administration Department of Renmin University of China, Beijing 100872, China; 2 BeijingWeituo Times Architectural Design Co. , Ltd. , Beijing 100025, China)
Abstract:Medical buildings, as the key fortifications of public buildings, how to realize its uninterrupted function in theearthquake has been a research topic of concern. For medical buildings in high intensity areas, The seismic managementregulations for construction projects ( Decree No. 744) proposes envelope design for frequent and fortification earthquakeconditions. The traditional design method simply by increasing the cross-sectional size of the component is often ineffective,and it is easy to appear “ fat beam and fat column” phenomenon. In order to effectively control the cross-sectional size ofstructural components to meet the use requirements of the building, the energy dissipation and vibration reduction designmethod of adding metal dampers to the structure was used to analyze the time history of the damping and non-dampingstructures under different seismic conditions. The research results show that the damping structure can meet the performanceindexes of the normal use in the The seismic management regulations for construction projects (Decree No. 744) under theaction of fortification earthquake. At the same time, the design goal of “strong column and weak beam”can be better realizedunder rare earthquakes, and the seismic performance is better than that of pure frame system. The performance test of thedamper was carried out by simulating the environment of the medical cold storage room, which further proves that themechanical properties of the damper are stable and the hysteresis curve is full in the low-temperature environment.
Keywords: medical building; metal damper; energy dissipation and vibration reduction; time history analysis; lowtemperature environment
∗ “十三五”科技部科技支撐計劃子課題:裝配式鋼筋混凝土車站技術(shù)經(jīng)濟(jì)與相關(guān)政策研究(2017YFB1201104).
第一作者:葉麗影,碩士,高級工程師,主要從事工程技術(shù)管理工作,Email: yely@ ruc. edu. cn.
[引用本文] 葉麗影,劉云華,戴國強(qiáng). 高烈度區(qū)醫(yī)療類建筑的消能減震技術(shù)應(yīng)用研究[J]. 建筑結(jié)構(gòu),2023,53(6):100-105,130. YE Liying,LIU Yunhua,DAI Guoqiang. Application study of energy dissipation and vibration reductiontechnology of medical buildings in high intensity area[J]. Building Structure,2023,53(6):100-105,130.
