设有一横截面为四边形的格构式自立式铁架，其底节间的人字形腹杆系由两个等边角钢┗80×

发布时间：2019-02-16 07:14 │ 来源：www.tikuol.com

题型：单项选择题案例分析题

问题：

设有一横截面为四边形的格构式自立式铁架，其底节间的人字形腹杆系由两个等边角钢┗80×7组成的T形截面，如下图所示。钢材为Q235-B？F，其斜撑所受的轴心力设计值N＝±150kN。

假定人字形腹杆与节点板的连接改用8.8级的摩擦型高强度螺栓，其接触面为喷砂后涂无机富锌漆，应选用（）为公称直径的螺栓。

A.M16

B.M20

C.M22

D.M24

考点：二级结构工程师专业知识钢结构钢结构题库

题型：单项选择题案例分析题

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Trip 1   One Week in the Mountains
     Bring your strong shoes and warm clothes for this walk in a beautiful area of the Green Mountains. You
may go hiking or have a try of rock climbing . This is also a protection area for wild animals. You can find
many kinds of animals living in this area.
              Time: May 8- May 14              Tel: 61639818
              Adult: $ 110.00                        Child : $ 55.00

Trip 2   Three Days in the Country
     There are many beautiful gardens. Take your camera and enjoy the wonderful sight in Hunter Valley. It
is a good place for fishing and horse-riding. You can also find different kinds of flowers here. This is also
a great walk for bird-lovers.
           Time: May 20- May 22             Tel: 63986432
           Adult: $ 50.00                          Child : $ 25.00

Trip 3  Five Days By the Sea
     Wear your sun hat and enjoy wonderful sunshine all the time from morning to evening. Our hotel is next
to the sea. We have our own boats too. You can swim in the sea or in the swimming pool. Every day
our boat will take you to different places for swimming.
          Time: May 23- May 27             Tel: 67538293
          Adult: $ 80.00                    Child : $ 40.00

1. What number will you call if you and your friends want to enjoy the sunshine at the seaside?

    A. 67538293
    B. 63986432
    C. 64639818
    D. 63875629

2. Sam wants to stay in Hunter Valley with his wife ,his five-year-old daughter and his seven-year-old son.
How much will it cost?

    A. $ 25.
    B. $ 50
    C. $ 100
    D. $ 150

3. David loves sports. He will take his holiday from May 7 to May 15. What activity will he probably take
part in?

    A. Hiking in the mountains.
    B. Watching plants at night.
    C. Fishing in the country
    D. Swimming in the sea.

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治疗胎位不正最常用的腧穴是

A．合谷

B．至阴

C．三阴交

D．太冲

E．足三里

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局麻药中毒时临床上的抢救措施不包括（）。

A.吸氧

B.补液

C.抗惊厥

D.应用激素

E.应用降压药

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人类最早的古代神话系统是（）神话。

A、古希腊

B、古罗马

C、古埃及

D、古印度

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蜘蛛痣不应出现的部位是

A．面部

B．肩部

C．上胸部

D．腹部

E．颈部

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