N/φA≦f的物理意义是（） -题库考试答案搜索网

N/φA≦f的物理意义是（）

单选题

2022-07-11 14:57

A、A．构件截面平均应力不超过钢材抗压强度设计值
B、B．构件截面最大应力不超过构件欧拉临界应力设计值
C、C．构件截面平均应力不超过构件欧拉临界应力设计值
D、D．轴心压力设计值不超过构件稳定极限承载力设计值

查看答案

正确答案

A

试题解析

标签：钢结构设计原理机械工程

感兴趣题目

实腹式轴心受压构件的稳定验算公式为N／（φA）≤f，公式的左边是截面的实际应力吗？

计算轴心受压构件整体稳定性的公式N/（ϕA）≤f的物理意义是（）。

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.

A vessel or object being towed astern shall display a(n)（）.

计算轴心受压构件整体稳定性的公式N/（ϕA）≤f的物理意义是（）。

The movement of water away from the shore or downstream is called a(n)（）.

A series of brief showers accompanied by strong，shifting winds may occur along or some distance ahead of a(n)（）.

N/φA≦f的物理意义是（）

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.

A current moving across a lock entrance toward the river or toward the dam is called a(n)（）.

相关题目: A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.; 满足相律f=K-Φ+n的是; 按钢结构设计规范规定，实腹式轴心受压构件整体稳定性的公式N/φA≤f的物理意义是（）。; _________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.; N-S方程的物理意义是实际流体的流动中( )平衡。; φ (x) 在 a 点连续, f (x) = | x - a |φ (x), f.(a)存在的条件是 ( ) 。; 设a=5，b=4，c=3，d=2，则表达式3＞2*b Or a=c And b＜＞c Or c＞d的值是; 设a=5，b=4，c=3，d=2，则表达式3＞2*b Or a=c And b＜＞c Or c＞d的值是; The Urgency Signal（）indicates that the station calling has a very urgent message to transmit concerning the safety of a ship or aircraft，or of some person on board or within sight.; 设a=5，b=4，c=3，d=2，下列表达式的值是 3＞2*b Or a=c And b＜＞C Or c＞d; 设a=5，b=4，c=3，d=2，下列表达式的值是( )。 3＞2*b Or a=c And b＜＞c Or c＞d; 设a=5，b=4，c=3，d=2下列表达式的值是 3＞2*b Or a=c And b＜＞C Or c＞d; 设a=5，b=4，c=3，d=2，下列表达式的值是 3＞2*b Or a=c And b＜＞c Or c＞d; 设a=2，b=3，c=4，d=5，下列表达式的值是（）。 3>2*b Or a=c And bc Or ba+c; 下列程序段的执行结果为( )。 Dim A(3,3) For M=1 To 3 For N=1 To 3 If N=M Or N=3-M+1 Then A(M,N)=1 Else A(M,N)=0 End If Next N Next M For M=1 To 3 For N=1 To 3 Print A(M,N) Next N Print Next M; 下列程序段的执行结果为 Dim A(3,3) For M=1 To 3 For N=1 To 3 If N=M Or N=3-M+1 Then A(M,N)=1 Else A(M,N)=0 End If Next N Next M For M=1 To 3 For N=1 To 3 Print A(M,N) Next N Print Next M; 下列程序段的执行结果为( )。 Dim A(3，3) For M=1 To 3 For N=1 To 3 If N=M Or N=3-M+1 Then A(M, N)=1 Else A(M，N)=0 End If Next N Next M For M=1 To 3 For N=1 To 3 Print A(M，N) Next N Print Next M; 设a=′′a′′，b=′′b′′，c=′′c′′，d=′′d′′，执行语句x=IIf（（ad），′′A′′，′′B′′）后，x的值为（　　）。; In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)（）.; N-S方程的物理意义是什么？适用条件是什么？

广告位招租WX:84302438

题库考试答案搜索网

免费的网站请分享给朋友吧