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-wenkub
2023-04-07 00:16:58 本頁面
【正文】 ) A．120kN B．100kN C. 80kN D．40kN 3．用位移法求解圖示結(jié)構(gòu)時，基本未知量的個數(shù)是( )A．8 B．10 C．11 D．12 4．圖示體系的自振頻率。每小題3分，共30分) 1．X 2．X 3．X 4．√ 5．X 6．√ 7．X 8．X 9．X lO．X 二、單項選擇題(每小題3分，共30分) 1．C 2．C 3．B 4. C 5．A 6．A 7．C 8．D 9．C 10．H 試卷代號：1129中央廣播電視大學(xué)2007—2008學(xué)年度第一學(xué)期“開放本科”期末考試(半開卷)土木工程專業(yè) 土木工程力學(xué)(本) 試題2008年1月 一、判斷題(每小題3分，共30分。 ( ) 4．對于超靜止梁，塑性鉸的數(shù)目不一定等于結(jié)構(gòu)的超靜定次數(shù)。( ) 8．力矩分配沾中的分配系數(shù)、傳遞系數(shù)與荷載無關(guān)。在每小題的四個備選答案中 選出一個正確答案，并將其代號填在題千后面的括號內(nèi)。此結(jié)論是由下述( )假定導(dǎo)出的。 A． 0 B．一3m C， —2m D．一1m 7．下圖所示體系的動力自由度為( )。 A．(a)＝(b) B． (a)＝(c) C． (b)=(c) D．都不等 三、(20分) 用力法計算，并繪圖示結(jié)構(gòu)的M圖。(只要求求出各系數(shù)和自由項，列出位移法方程) 參考答案：只有一個結(jié)點角位移。本大題分3小題，共15分) 1．圖示為剛架的虛設(shè)力系，按此力系及位移計算公式可求出桿AC的轉(zhuǎn)角。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點的縱坐標為： 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)EI／為常數(shù)。BAAB／1D用位移法作圖示結(jié)構(gòu)M圖。m2，求自振頻率。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（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 ( )(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=9600五、(15分)試用機動法繪制圖示多跨靜定梁、影響線。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 byStudio. 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。s real name was Nasreddin. He was wise and witty and, more importantly, he had the courage to resist the exploitation of noblemen. He was also full of passion and tried his best to help poor people. Adventure of Shuke and Beita【舒克與貝塔】 Adventure of Shuke and Beita (Chinese: 舒克和貝塔) is a classic animation by Zheng Yuanjie, who is known as King of Fairy Tales in China. Shuke and Beita are two mice who don39。s law. In order
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