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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(編輯修改稿)

2025-04-19 00:16 本頁面
 

【文章內(nèi)容簡介】 AB/1D4/73/7MP一2+2—1/2分配、傳遞一3/7—6/7—9/14M一17/78/7—8/7 3分 MF: 4分 分配、傳遞: 4分 M: 4分 彎矩圖: 5分五、(本大題20分)用位移法作圖示結(jié)構(gòu)M圖。EI為常數(shù)。用位移法作圖示結(jié)構(gòu)M圖。EI為常數(shù)?;倔w系圖: 5分 求系數(shù): 3分 求自由項: 3分 解方程求: 4分繪彎矩田: 5分六、(本大題20分)圖示剛架橫梁為剛性桿,重量W:10kN集中在橫粱上,h=4m,EI=5.442104kNm2,求自振頻率。圖示剛架橫梁為剛性桿,重量W:10kN集中在橫粱上,h=4m,EI=5.442104kNm2,求自振頻率。水平側(cè)移剛度:=1.020104kN/m(10分)自振頻率:=(10分)中央廣播電視大學(xué)2005—2006學(xué)年度第一學(xué)期“開放本科”期末考試土木工程專業(yè) 土木工程力學(xué)(本) 試題 2006年1月一、是非題(將判斷結(jié)果填入括??;以√表示正確,以表示錯誤) (本大題共3小題,總計15分)1.圖a為一對稱結(jié)構(gòu),用位移法求解時可取半邊結(jié)構(gòu)如圖b所示。( )(本題5分)2.圖示梁AB在所示荷載作用下的M圖面積為/3。( )(本題5分)3.圖示體系有5個質(zhì)點,其動力自由度為5。(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內(nèi))(本大題共3小題,總計 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.55.43kNm B.56.4kNmC.83.48kNm D.84.71kNm ( )(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,其中豎標是表示: A.P=1在E時,C截面的彎矩值 B.P=1在C時,A截面的彎矩值C.P=1在C時,E截面的彎矩值 D.P=1在C時,D截面的彎矩值( )(本題8分)三、(本大題15分)計算圖示結(jié)位移法典型方程式中系數(shù)和自由項(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)。EI=常數(shù)。五、(15分)試用機動法繪制圖示多跨靜定梁、影響線。六、(本大題25分)求圖示結(jié)構(gòu)的自振頻率。EI=9600試題答案及評分標準一、是非題(將判斷結(jié)果填入括??;以√表示正確,以表示錯誤) (本大題共3小題,總計15分)1. 2. 3.二、選擇題(將選中答案的字母填入括號內(nèi))(本大題共3小題,總計 15分)1.A(本題7分) 2.C(本題8分) 三、(本大題15分)計算圖示結(jié)位移法典型方程式中系數(shù)和自由項(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)。EI=常數(shù)。結(jié)點AD桿端AB AC ADDA DE3/15 8/15 4/151/3 2/3每個系數(shù)各3分。五、(15分)試用機動法繪制圖示多跨靜定梁、影響線。影響線(7分)影響線(8分) 請您刪除一下內(nèi)容,O(∩_∩)O謝謝?。?!【China39。s 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。s animation outpouring that are not to be missed. Let39。s 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 byShanghaiAnimationFilmStudio. 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) 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。 violence, and lack of suitability for children3
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