某15层框架一剪力墙结构，其平立面示意如图1-16所示，质量和刚度_爱下问搜题

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问题单项选择题

某15层框架一剪力墙结构，其平立面示意如图1-16所示，质量和刚度沿竖向分布均匀，对风荷载不敏感，房屋高度58m，首层层高5m，二～五层层高4.5m，其余各层层高均为3.5m，所在地区抗震设防烈度为7度，设计基本地震加速度为0.15g，Ⅲ类场地，设计地震分组为第一组。

假定，在规定的水平作用下，该结构底层框架部分承受的地震倾覆力矩为结构总地震倾覆力矩的60%，已知底层某框架柱截面为800mm×800mm，剪跨比大于2，混凝土强度等级C40(f_c=19.1N/mm²)。在不采用有利于提高轴压比限值的构造措施的条件下。试问，满足规范轴压比限值要求时，该柱考虑地震作用组合的轴压力设计值(kN)最大值，与下列何项数值最为接近
提示：按《建筑抗震设计规范》(GB 50011—2010)作答。

答案

参考答案：A

解析：根据《建筑抗震设计规范》表6.1.2，6.1.3条，3.3.3条
结构框架等级为一级，由《建筑抗震设计规范》表6.3.6，[μ_N]=0.65
则N_max=[μ_N]f_cA=0.65×19.1×800×800N=7945600N=7945.6kN，故选(A)。

完形填空

The day    I was 3 years old       the beginning of my dream. On that day, after seeing the Capital Dancing Company performance, I    , “Mama, when I grow up, I’m going to be one of those.”
As I grow older, my    in the world of dance    changed, but that little girl’s dream of someday becoming a    in the company never left me. In 2005, aged 18, I received the phone making that dream come true: I became a member of the company.
When I looked        on that day now, I believe I stayed in a state of       disbelief until I was asked to rehearsal (排练). Though I was entirely excited with the offer, it did not come without      . Through the strict and hard rehearsal, I found it important to     myself to learning the skills fast with every bit of concentration(注意力集中). It is the extreme        to detail (细节) and stress on practice that help us      . Then comes a      show schedule of up to five performances a day, I found a new      of the words “HARD WORK”. The practice pushed me forward than I thought      . I learnt to make each performance better than the last. Besides, the teachers not only teach us skills but help us a lot in daily life when we are       in trouble.
Today, as a member and dance captain in the unbelievable company, I see a       that has encouraged not only       little girls but a wonderful company that       to develop and grow and encourage people every day to         their dreams.

C． challenges

D． acceptable

C． expression

A． a number of

B． a great deal of

C． a large amount of

填空题

协议是（）为了完成本层的功能而必须遵循的通信规则和约定。