- 摘 要
-
(中國建筑科學研究院有限公司工程抗震研究所， 北京 100013)
［摘要］我國的城市開發(fā)建設(shè)正處在由以增量建設(shè)為主轉(zhuǎn)向存量提質(zhì)改造和增量結(jié)構(gòu)并重的階段，隨著實體經(jīng)濟的衰退，城市大量的商業(yè)建筑逐步改造為辦公建筑，這些建筑均面臨著重新進行抗震鑒定與加固改造。加固改造的特點也從“結(jié)構(gòu)安全為主的加固+局部建筑功能的改造”向“大拆大改為主+被動性結(jié)構(gòu)加固”模式轉(zhuǎn)變，同時我國的工程建設(shè)標準也進行了多次修訂，對工程建設(shè)的設(shè)計要求逐步提高，由此帶來了加固改造工程中執(zhí)行什么樣的標準、如何確定合理的設(shè)防標準、抗震加固的地震作用取值、加固設(shè)計的后續(xù)使用年限等一系列的問題。針對城市大型公共建筑加固改造中亟待解決的問題，提出了相應的解決方案。
［關(guān)鍵詞］大型公共建筑；加固改造；標準適用性；設(shè)防標準；抗震鑒定；抗震加固
中圖分類號：TU312-3 文獻標識碼：A文章編號：1002-848X(2021)17-0091-07
Reflections on some problems of reinforcement and retrofitting of large public buildings
CHENG Shaoge
(Institute of Earthquake Engineering, China Academy of Building Research, Beijing 100013， China)
Abstract: China′s urban development and construction is shifting from incremental construction to stock quality improvement and incremental structure. With the recession of the real economy, a large number of commercial buildings in the city are gradually transformed into office buildings, which are facing seismic identification and reinforcement reconstruction again. The characteristics of reinforcement and renovation have also changed from "structural safety-oriented reinforcement & reconstruction of partial building functions" to "major demolition and major reconstruction & passive structural reinforcement". Meanwhile, China′s engineering construction standards have been revised for many times, and the design requirements for engineering construction have been gradually raised. This brings about a series of problems, such as what kind of standard to implement in the reinforcement project, how to determine the reasonable fortification standard, the value of seismic action of the seismic reinforcement, and the subsequent service life of the reinforcement design. In view of the urgent problems to be solved in the reinforcement and reconstruction of large public buildings in cities, the corresponding solutions are put forward.
Keywords:large public building； reinforcement and retrofitting； standard applicability； fortification standard； seismic evaluation； seismic reinforcement
作者簡介：程紹革，碩士，研究員，博士生導師，Email:chengshaoge@163.com。
