Seismic retrofit of non-code conforming reinforced concrete buildings

1970年之前设计和建造的加拿大钢筋混凝土(RC)建筑在地震中很脆弱 必须进行翻新。例如，不列颠哥伦比亚省正在进行一项全面的 学校抗震升级计划，使学校更安全。这一过程需要首先进行彻底的风险 评估并随后进行风险管理，同时考虑进行翻新。五花八门 改装技术是现成的，可以提高强度、延性以及强度和延性 RC系统的一部分。改装技术的选择需要考虑材料的可用性， 可持续发展和美学等。在这个项目中，一种这样的可持续材料--十字叠层 木材(CLT)作为一种可行的加固技术被提出。钢中使用CLT填充物的研究现状 结构表明，CLT填充物显著增加了系统的强度，并减少了地震 脆弱性。此外，在加拿大的两家CLT制造商中，Structurlam(http://structurlam.com/)，是 位于不列颠哥伦比亚省彭蒂顿，确保材料的可用性，用于翻新地震不足的建筑 在公元前和加拿大。

Canadian reinforced concrete (RC) buildings designed and constructed before 1970 are seismically vulnerable and have to be retrofitted. The province of British Columbia, for example, is undertaking a comprehensive school seismic upgrading program to make schools safer. This process entails first carrying out a thorough risk assessment and subsequently undertaking risk management with consideration of retrofitting. Various retrofitting techniques are readily available that can improve strength, ductility, and both strength and ductility of the RC system. Selection of the retrofitting technique necessitates consideration of availability of material, sustainability, and aesthetics, among others. In this project, one such sustainable material, Cross Laminated Timber (CLT), as a viable retrofitting techniques is proposed. Previous studies on the use CLT infill in steel structures have shown that the CLT infill considerably increases strength of the system, and reduces the seismic vulnerability. Furthermore, of the two CLT manufactures in Canada, Structurlam (http://structurlam.com/), is located in Penticton, BC that ensures availability of the material for retrofitting seismically deficient buildings in BC and Canada.