midas高层建筑的PUSHOVER分析.doc
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MIDAS Structural Engineering System 高层建筑的PUSHOVER分析
高层建筑的PUSHOVER分析
目 录
荷载组合 ································································································································ 2 一般设计参数概述 ···························································································· 2 钢筋混凝土构件设计参数 ······································································· 4 钢筋混凝土构件设计 ················································································ 6 静力弹塑性(Pushover ·························································· 9 Pushover····················································································· 15
1······················································································· 15
·················································································· 17
3························································································ 21
1
高层建筑的PUSHOVER分析
荷载组合
主菜单选择 结果荷载组合:
一般组合:用于查看内力变形等,一般组合中有包络组合
混凝土设计:用于结构设计部分组合 点击自动生成
注:
1. 考虑双向地震
勾选双向地震程
序会在荷载组合
中自动添加。
2.用户亦可自定
义所需的荷载用
户,先在左侧名称
一栏定名称,在右
侧选择荷载工况
和组合系数。 设计规范:GB50017-03
图
定义框架: 设计类型 :三维
图2 定义框架
2:主菜单选择 设计一般设计参数指定构件: 自动指定构件自由长度
2
高层建筑的PUSHOVER分析
当梁单元中间被其它节点分割成几部分时,需由程序自动指定构件,定义梁单元在强轴作用平面内的自由长度。
注:当有非直线梁单元时,需在模型中选择此梁单元由手动完成。
3:主菜单选择 设计一般设计参数反转构件方向:
若有对称单元且对称部分单元编号相同时,选择此项菜单,否则不用选择此项菜单。
4:主菜单选择 设计一般设计参数自由长度:当由程序自动指定构件后,程序默认自由长度为构件两节点间距离,一般不用选择此项菜单。当有一些特殊构件的自由长度需由设计者指定时,选择此项菜单编辑构件自由长度。
5:主菜单选择 设计一般设计参数计算长度系数:当由程序自动计算时,一般不用选择此项菜单。选择此项菜单编辑构件计算长度系数。
6:主菜单选择 设计不用选择此项菜单。件极限长细比。
7:主菜单选择此系数为压弯构
9 地震作用放大系数:
10 一般设计参数编辑构件类型:
选项:添加/替换 构件类型:梁 梁:框架梁
功能选择框架梁,按
即可。 同样方法定义柱和墙构件。
3
高层建筑的PUSHOVER分析
钢筋混凝土构件设计参数
1:主菜单选择 设计钢筋混凝土构件设计参数定义抗震等级
图3
2:主菜单选择 设计
图材料分项系数
3 编辑钢筋混凝土材料
图5 钢筋混凝土材料特性
4:主菜单选择 设计钢筋混凝土构件设计参数
4
高层建筑的PUSHOVER分析
编辑最大配筋率
图6 编辑最大配筋率
5:主菜单选择
设计定义设计用钢筋直径
图7 定义设计用钢筋直径
5
高层建筑的PU
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