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20xx年電大土木工程力學(xué)(本)歷年試題及參考答案資料小抄匯總-文庫(kù)吧資料

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【正文】 les in China. Shuke and Beita are two mice who don39。s education. Proponents of the show claim that it is merely for entertainment. Effendi Effendi, meaning sir andStudio. In the 1980s the series was one of the most popular animations in China. It was released at a point when the Chinese animation industry was in a relatively downed state pared to the rest of the international munity. Still, the series was translated into 7 different languages. The episodes were produced with a vast amount of papercut animations. Black Cat Detective Black Cat Detective (Chinese: 黑貓警長(zhǎng)) is a Chinese animation television series produced by the Shanghai Animation Film Studio. It is sometimes known as Mr. Black. The series was originally aired from 1984 to 1987. In June 2006, a rebroadcasting of the original series was announced. Critics bemoan the series39。Animations recall these colorful images that brought the country great joy. Calabash Brothers Calabash Brothers (Chinese: 葫蘆娃) is a Chinese animation TV series produced bys 10 mustsee animations】The Chinese animation industry has seen considerable growth in the last several years. It went through a golden age in the late 1970s and 1980s when successively brilliant animation work was produced. Here are 10 mustsee classics from China39。五、(15分)試用機(jī)動(dòng)法繪制圖示多跨靜定梁、影響線。EI=常數(shù)。EI=9600五、(15分)試用機(jī)動(dòng)法繪制圖示多跨靜定梁、影響線。m ( )(本題7分) 2.圖示結(jié)構(gòu)某截面的影響線已做出如圖所示,其中豎標(biāo)是表示: A.P=1在E時(shí),C截面的彎矩值 B.P=1在C時(shí),A截面的彎矩值C.P=1在C時(shí),E截面的彎矩值 D.P=1在C時(shí),D截面的彎矩值( )(本題8分)三、(本大題15分)計(jì)算圖示結(jié)位移法典型方程式中系數(shù)和自由項(xiàng)(各桿的EI為常數(shù))四、(本大題15分)求圖示剛架的力矩分配系數(shù)。mC.83.48kN(設(shè)忽略直桿嶄向變形的影響)( )(本題5分)二、選擇題(將選中答案的字母填入括號(hào)內(nèi))(本大題共3小題,總計(jì) 15分) 1.已知混合結(jié)構(gòu)的多余力=38.74kN及圖a、b分別為Mp,Np和,圖,則K截面的M值為: A.55.43kN( )(本題5分)2.圖示梁AB在所示荷載作用下的M圖面積為/3。中央廣播電視大學(xué)2005—2006學(xué)年度第一學(xué)期“開(kāi)放本科”期末考試土木工程專業(yè) 土木工程力學(xué)(本) 試題 2006年1月m2,求自振頻率。m2,求自振頻率。基本體系圖: 5分 求系數(shù): 3分 求自由項(xiàng): 3分 解方程求: 4分繪彎矩田: 5分用位移法作圖示結(jié)構(gòu)M圖。五、(本大題20分)用位移法作圖示結(jié)構(gòu)M圖。BAAB/1DEI/為常數(shù)。EI/為常數(shù)。本大題分2小題,共15分) 1.據(jù)影響線的定義,圖示懸臂梁C截面的彎距影響線在C點(diǎn)的縱坐標(biāo)為: A.0 B.-3mC. -2m D.-1m ( A )(本題7分) 2.圖為超靜定梁的基本結(jié)構(gòu)及多余力X1=1作用下的各桿內(nèi)力,EA為常數(shù),則為: A.d(0.5+1.414)/EA B.d(1.5+1.414)/EAC. d(2.5+1.414)/EA D.d(1.5+2.828)/EA ( B )(本題8分)( )(本題5分)3.圖示為單跨超靜定梁的力法基本體系,其力法方程的系數(shù)為為l/EA。本大題分3小題,共15分) 1.圖示為剛架的虛設(shè)力系,按此力系及位移計(jì)算公式可求出桿AC的轉(zhuǎn)角。位移法方程:試卷代號(hào):1129 中央廣播電視大學(xué)2007—2008學(xué)年度第一學(xué)期“開(kāi)放本科”期末考試(半開(kāi)卷) 土木工程專業(yè) 土木工程力學(xué)(本) 試題答案及評(píng)分標(biāo)準(zhǔn) (供參考) 2008年1月一、判斷題(每小題3分,共30分。(只要求求出各系數(shù)和自由項(xiàng),列出位移法方程) 參考答案:只有一個(gè)結(jié)點(diǎn)角位移。 參考答案: 四、(20分) 用位移法求解此剛架。 A.(a)=(b) B. (a)=(c) C. (b)=(c) D.都不等 三、(20分) 用力法計(jì)算,并繪圖示結(jié)構(gòu)的M圖。=,則其極限荷載為( )。 A. 0 B.一3m C, —2m D.一1m 7.下圖所示體系的動(dòng)力自由度為( )。 5.簡(jiǎn)支梁的剪力影響線為兩條( )。此結(jié)論是由下述( )假定導(dǎo)出的。 A. 桿端彎矩 B.結(jié)點(diǎn)角位移 c.結(jié)點(diǎn)線位移 D.
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