Structural properties of superior design solutions of steel buildings associated with BRBs
Structural properties of superior design solutions of steel buildings associated with BRBs
复制标题
与 BRB 相关的钢结构建筑卓越设计解决方案的结构特性
DOI：
10.1016/j.istruc.2021.10.006
复制
发表时间：
2021
期刊：
影响因子：
4.1
通讯作者：
Cao Yongsheng
中科院分区：
文献类型：
--
作者：
Takagi Jiro;Ohsaki Makoto;Cao Yongsheng
提出了带屈曲约束支撑钢结构建筑合理抗震设计解的设计算法。防屈曲支撑的强度和位置以及结构构件的截面尺寸被视为离散的设计变量。在各种实际设计约束条件下，以最小化含防屈曲支撑的钢体积为目标函数。以一栋7层办公楼为例，分析了两种不同结构体系的应用情况，即一种主要由侧向框架组成，另一种通常在周边与重力框架分开，侧向框架的利用率有限。采用抗力计算和极限状态法，考虑防屈曲支撑的减震效果，得到满足正常使用和极限状态约束的上级设计解。响应历史分析验证了其合理性。此外，在SDS的地震需求水平和弹性构件约束的影响进行了研究。与防屈曲支撑的SDS的结构特性进行了客观评价，使用所提出的设计算法。
A design algorithm is proposed for rational seismic design solutions of steel buildings associated with buckling restrained braces (BRB). The strengths and locations of BRBs in addition to the section sizes of structural members are considered as discrete design variables. The steel volume including BRBs is minimized as an objective function under various practical design constraints. A seven-story office building is examined for application in two different types of structural systems, i.e. one mainly consisting of lateral frames and the other with limited utilization of lateral frames typically in perimeter separately from gravity frames. The derived solutions, defined as superior design solutions (SDSs), satisfy serviceability and limit-state constraints, taking into consideration the seismic energy dissipation effect of BRBs using the calculation of resistance and limit-state method. Their rationale is validated with response history analysis. Furthermore, the influences in SDSs by the seismic demand levels and elastic member constraint are investigated. The structural characteristics of SDSs associated with BRBs are objectively evaluated using the proposed design algorithm.
登录
查看更多内容
影响因子：
3.7
作者：
A. Mehdipanah;S. R. Mirghaderi;Seyyed Ali Razavi Tabatabaei
通讯作者：
A. Mehdipanah;S. R. Mirghaderi;Seyyed Ali Razavi Tabatabaei
影响因子：
2.1
作者：
D. Poole;C. Allen;T. Rendall
通讯作者：
D. Poole;C. Allen;T. Rendall
影响因子：
4.5
作者：
Freddi, Fabio;Ghosh, Jayadipta;Raghunandan, Meera
通讯作者：
Raghunandan, Meera
利用非线性时程分析和优化设计屈曲约束支撑框架
DOI：
10.1061/(asce)st.1943-541x.0000007
发表时间：
2009
期刊：
Journal of Structural Engineering-asce
影响因子：
--
作者：
R. Balling;Lukas J. Balling;P. Richards
通讯作者：
P. Richards
影响因子：
4.5
作者：
Freddi, F.;Tubaldi, E.;Dall'Asta, A.
通讯作者：
Dall'Asta, A.