移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

单选题

某城市(设计地震分组为二组)修建结构基本自振周期T为1s的建筑,建筑场地选在Ⅲ类场地上时,其地震影响系数大约为选在Ⅱ类场地上的()。

发布日期:2020-04-13

某城市(设计地震分组为二组)修建结构基本自振周期T为1s的建筑,建筑场地选在Ⅲ类场地上时,其地震影响...
A

2倍

B

1.38倍

C

0.75倍

D

1.33倍

试题解析

设计地震分组

设计地震分组是新规范新提出的概念,用以代替旧规范设计近震、设计远震的概念。根据《抗规》第3.2.3条条文及第3.2.2条条文说明,设计地震分组实际上是用来表征地震震级及震中距影响的一个参量,实际上就是用来代替原来老规范“设计近震和远震”,它是一个与场地特征周期与峰值加速度有关的参量。

中文名
设计地震分组
属性
设计
性质
地震分组
是新规范
新提出的

自振周期

自振周期T为结构系统按某一振型完成一次自由振动所需要的往复时间。

中文名
自振周期
含义
一次自由振动所需要的往复时间
性质
一种描述物理震动的物理术语
特点
只与自身质量m以及刚度系数k有关

二组

二组是贵州省安顺市镇宁布依族苗族自治县江龙镇陇西村下辖组。

中文名
二组
位置
贵州省安顺市镇宁县江龙镇陇西村

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

CMS专题

CMS专题

去刷题
热门试题热门资讯 相关试题

The grammatical words which play so large a part in English grammarare for the most part sharply and obviously different from the lexical words. Arough and ready difference which may seem the most obvious is that grammatical    1._______words have “less meaning”, but in fact some grammarians have called them      2._______“empty” words as opposed in the “full” words of vocabulary. But this is a rather 3._______misled way of expressing the distinction. Although a word like theis not the name  4._______of something as man is, it is very far away from being meaningless; there is a    5._______sharp difference in meaning between “man is vile” and “the man is vile”, yet theis the single vehicle of this difference in meaning. Moreover, grammatical words   6._______differ considerably among themselves as the amount of meaning they have even in th  7._______lexical sense. Another name for the grammatical words has been “little words.”But size is by no mean a good criterion for distinguishing the grammatical words   8._______of English, when we consider that we have lexical words as go, man, say, car.    9._______Apart from this, however, there is a good deal of truth in what some people say:we certainly do create a great number of obscurity when we omit them. This     10._______is illustrated not only in the poetry of Robert Browning but in the prose of tele-grams and newspaper headlines.

糖尿病时的饮食原则包括()

阳极去极化剂是指电解时能使阳极电位变正、促进阳极活化的物质。

美国联邦储备委员会(美联储)3月16日宣布维持联邦基金利率()不变,称全球经济和金融状况将继续给美国经济带来风险,同时表示将密切关注通胀水平。

下列木材强度指标中,()为线强度。

溶液pH=10,铬黑T指示剂本身为()色;与Ca2+、Mg2+形成络合物的颜色()色。

由五个成员组成的新产品研发小组,内部一般应采用的沟通形式是(  )。

某男性患者,64岁,近两个月右肺上叶感染,抗菌素治疗吸收缓慢,吸收一周后同一部位又出现感染病灶,右肺门影稍增大。该病例右肺上叶炎症最可能为()。

跑的锻炼身体的手段有()

压缩空气中的污染物将对气动系统造成哪些不利影响?

暂无相关推荐~