4.3.New design concepts (Performance Based Structural Design) --Safety fuse concept ---Active/Passive vibration control ---Total lifetime design ---Robustness (vulnerability)design ---Sustainable development
4.3. New design concepts (Performance Based Structural Design) --- “ Safety fuse ” concept ---Active/Passive vibration control ---Total lifetime design ---Robustness (vulnerability) design ---Sustainable development
“Safety fuse”concept 1.Knee bracing frame system 2.Slit shear wall 3.Dog bone joint in frame 4.Weak girders between tubes
“Safety fuse” concept 1.Knee bracing frame system 2.Slit shear wall 3.Dog bone joint in frame 4.Weak girders between tubes
Active/Passive vibration control 表1-2工程结构减震控制体系及各自特点 减震控制体系 简介 分类 应用范围 在建筑物与基础之间增设水平方向很柔 橡胶支座 地震中要求确保 基础隔震 软的支承元件，使被隔体系自振周期延 摩擦滑动隔震元件 绝对安全的结构 长，远离地震作用优势周期的分布范围 悬吊、滚轴等隔震元件 物、桥梁等 摩擦阻尼器 阻尼在建筑物中安装各类阻尼耗能装置，消 水平刚度较小的 减振 耗地震输入能量 金属阻尼器 多层、高层、超 消能减振 粘滞、粘弹性阻尼器 高层建筑、塔架、 吸能在建筑物中安装特殊构件、设施作为耗 耗能支撑、耗能构件 大跨度桥梁等 减振 能装置，消耗地震输入能量 减振墙 在建筑物上安装感应器收集结构振动数 主动控制 对抗震抗风要求 振动控制 据，经信号处理后反馈给控制系统，由 半主动控制 控制系统控制结构反应 较高的结构物 混合控制
Active/Passive vibration control
---Total lifetime design Construction+maintenance+Remove "law of fives"in maintenance 1 spent in Phase A for protection (construction) 三 saving 5 repair expenditure in Phase B(10Y) 三 saving 25 repair expenditure in Phase C(20Y) 二 saving 125 S repair expenditure in Phase D(30Y)
---Total lifetime design Construction+ Maintenance+ Remove “law of fives” in maintenance 1 $ spent in Phase A for protection (construction) = saving 5 $ repair expenditure in Phase B(10Y) = saving 25 $ repair expenditure in Phase C(20Y) = saving 125 $ repair expenditure in Phase D(30Y)
---Robustness (vulnerability)design Against unexpected attack. Methods: 1.替代荷载路径法（结构倒塌分析） 2.关键构件加强法（构件重要性系数） 3.能量吸收装置法（结构振动控制和结构保险丝） 4.事件控制法（防爆墙，防撞柱/岛，防鸟网等） 其中事件控制法最经济有效、最常用
---Robustness (vulnerability) design Against unexpected attack. Methods: 1.替代荷载路径法（结构倒塌分析） 2.关键构件加强法 (构件重要性系数） 3.能量吸收装置法（结构振动控制和结构保险丝） 4.事件控制法（防爆墙，防撞柱 /岛，防鸟网等） 其中事件控制法最经济有效、最常用
---Sustainable development (Civil Engineer) Saving energy Saving water Saving material Saving ground Protecting environment,reducing the impact to nature
---Sustainable development (Civil Engineer) Saving energy Saving water Saving material Saving ground Protecting environment ，reducing the impact to nature
4.4 Examples ---Single Story Structure --Twelve-Story Structure --Multi Story Buildings
4.4 Examples --- Single Story Structure --- Twelve-Story Structure --- Multi Story Buildings
Example:Single story structure---Portal Frame B
Example: Single story structure---Portal Frame
Example:Single story structure---Portal Frame
Example: Single story structure---Portal Frame
Example:Single story structure---Portal frame 国家（天津）网球培训中心(42 m Span)
Example: Single story structure---Portal frame 国家（天津）网球培训中心(42m Span)