【单选题】A ______ is a person who is visiting a place when he or she is on holiday. [ ]
【单选题】在 20 世纪 50 年代中期,我国曾采用( ) 。它的特点是明确提出了两种极限状态(承载能力极限状态和变形极限状态)的概念;荷载和材料强度的取值上部分地引进了概率原则;且采用三个系数。
C.
结构极限状态为依据,多系数分析后用单一设计安全系数的容许应力计算方法
【判断题】Tourist is a person who goes to visit a distance location, to see the sights, to visit friends and relatives or to do little else but relax or participate in leisure activities .
【单选题】The latter half of the last sentence in paragraph 3, 'or one tourist for every person living in Spain' means ______.
A.
all the 37 million people living in Spain are tourists
B.
every year almost as many tourists visit Spain as there are people living in that country
C.
every person living in Spain has to take care of a tourist
D.
every Spanish is visited by a tourist every year
【判断题】在选用表面粗糙度参数值时,参数值越小越好
【简答题】有关砖砌体结构设计原则的规定,下列说法中何种选择是正确的? 1.采用以概率理论为基础的极限状态设计方法 Ⅱ.按承载能力极限状态设计,进行变形验算来满足正常使用极限状态要求 Ⅲ.按承载能力极限状态设计,并由相应构造措施来满足正常使用极限状态要求 Ⅳ.按承载能力极限状态设计,进行整体稳定性验算来满足正常使用极限状态要求 (A)Ⅰ、Ⅱ (B)Ⅰ、Ⅲ (C)Ⅰ、Ⅳ (D)Ⅱ、Ⅲ
【判断题】在选用表面粗糙度参数值时,参数值越小越好
【单选题】模板及支架的设计下列说法错误的是()
A.
模板及支架的结构设计宜采用概率理论为基础、以分项系数表达的极限状态设计方法
B.
模板及支架的设计计算分项中所采用的各种简化和近似假定,应有理论或试验依据,或经工程验证可行
C.
模板及支架应根据施工期间各种受力状况进行结构分析,并确定其最不利的作用效应组合
D.
支撑模板荷载的顶部水平杆可按受剪构件进行验算
【判断题】在选用表面粗糙度参数值时,参数值越小越好。