【正文】 唯一的。 （ √ ）15．一般來(lái)說(shuō)靜定多跨梁的計(jì)算順序是，先基本部分后附屬部分。（ ）11．當(dāng)結(jié)構(gòu)中某個(gè)桿件的EI為無(wú)窮大時(shí)，其含義是這個(gè)桿件無(wú)彎曲變形。（ ）7．圖示桁架結(jié)構(gòu)中不包括支座鏈桿，有5個(gè)桿件軸力為0 。（ √ ）3．圖示懸臂梁截面A的彎矩值是ql2。A．結(jié)構(gòu)的平衡條件 B．結(jié)構(gòu)的物理?xiàng)l件 C．多余約束處的位移協(xié)調(diào)條件 D．同時(shí)滿足A、B兩個(gè)條件37．力法典型方程中的系數(shù)代表基本結(jié)構(gòu)在（ C）。A．固端彎矩 B．傳遞彎矩C．分配彎矩 D．附加剛臂中的約束反力矩26．圖示結(jié)構(gòu)桿件BC的B端轉(zhuǎn)動(dòng)剛度為（　 D　） 。質(zhì)量集中在橫梁上，不考慮桿件的軸向變形，則體系振動(dòng)的自由度數(shù)為（A?。? A．1 B．2 （ A ）A．1 B．2C． 3 D．419．不考慮桿件的軸向變形，下圖所示體系的振動(dòng)自由度為（A ）。A．單位荷載的位置 B．截面K的位置 C．截面K的彎矩 D． A、C同時(shí)滿足 10． 影響線的橫坐標(biāo)是（ D ）。A．固定荷載的位置 B．移動(dòng)荷載的位置C．截面的位置 D．單位移動(dòng)荷載的位置11． 靜定結(jié)構(gòu)內(nèi)力與反力影響線的形狀特征是（ A ）。A． 1 B． 2 C． 3 D． 420．反映結(jié)構(gòu)動(dòng)力特性的重要物理參數(shù)是（ C ）。A．2 B．4 C．6 D．827．超靜定結(jié)構(gòu)在荷載作用下產(chǎn)生的內(nèi)力與剛度（ B ）A． 無(wú)關(guān) B． 相對(duì)值有關(guān) C． 絕對(duì)值有關(guān) D． 相對(duì)值絕對(duì)值都有關(guān)28．超靜定結(jié)構(gòu)的超靜定次數(shù)等于結(jié)構(gòu)中（B ）A．約束的數(shù)目 B．多余約束的數(shù)目C．結(jié)點(diǎn)數(shù) D．桿件數(shù)29． 用位移法計(jì)算超靜定結(jié)構(gòu)，其基本未知量的數(shù)目等于（ D ）A．超靜定次數(shù) B．剛結(jié)點(diǎn)數(shù)目C．線位移數(shù)目 D．獨(dú)立的結(jié)點(diǎn)位移數(shù)目30．位移法典型方程的物理意義是（ A ）A．附加約束上的平衡方程 B．附加約束上的位移條件C．外力與內(nèi)力的關(guān)系 D．反力互等定理31． 用位移法解超靜定結(jié)構(gòu)其基本未知量的數(shù)目（ A ）A．與結(jié)構(gòu)所受的作用有關(guān) B．與多余約束的數(shù)目有關(guān)C．與結(jié)點(diǎn)數(shù)有關(guān) D．與桿件數(shù)有關(guān)32．圖示超靜定結(jié)構(gòu)獨(dú)立結(jié)點(diǎn)角位移的個(gè)數(shù)是（ B ）A． 2 B． 3 C． 4 D． 533．用位移法計(jì)算圖示各結(jié)構(gòu)，基本未知量是兩個(gè)的結(jié)構(gòu)為（ 　C　）。A． 作用下產(chǎn)生的方向的位移 B． 作用下產(chǎn)生的方向的位移 C． 作用下產(chǎn)生的方向的位移 D． 作用下產(chǎn)生的方向的位移，基本未知量的個(gè)數(shù)是（ B ）A． 5 B． 6 C． 7 D． 839．求圖示梁鉸B左側(cè)截面的轉(zhuǎn)角時(shí)，其虛設(shè)力狀態(tài)應(yīng)取圖（ C ）A B C D 40．圖示對(duì)稱結(jié)構(gòu)EI = 常 數(shù) ，對(duì)稱軸穿過(guò)的截面C內(nèi)力應(yīng)滿足（　B　） 　 C．3 D． 441．圖示對(duì)稱結(jié)構(gòu)桿件EI為常量，利用對(duì)稱性簡(jiǎn)化后的一半結(jié)構(gòu)為（ C ）。 ( )4．圖示梁AB在所示荷載作用下A截面的彎矩值為。（　?。?．依據(jù)靜力平衡條件可對(duì)靜定結(jié)構(gòu)進(jìn)行受力分析，這樣的分析結(jié)果是唯一正確的結(jié)果。（　√?。?2．靜定多跨梁中基本部分、附屬部分的劃分與所承受的荷載無(wú)關(guān)。（ ）16．圖示結(jié)構(gòu)的超靜定次數(shù)是n=3。 （ ），虛設(shè)力狀態(tài)可以在力法的基本結(jié)構(gòu)上設(shè)。（ √ ）24．位移法的基本結(jié)構(gòu)不是唯一的。 （ √ ）28．力矩分配法適用于所有超靜定結(jié)構(gòu)的計(jì)算。 （ ）32．圖示結(jié)構(gòu)影響線的 AC 段縱標(biāo)為零 。（ ） （a） （b）36．圖（a）對(duì)稱結(jié)構(gòu)利用對(duì)稱性可簡(jiǎn)化為圖（b）來(lái)計(jì)算。( )40．干擾力只影響振動(dòng)質(zhì)點(diǎn)振幅，不影響結(jié)構(gòu)的自振頻率。EI=常數(shù)。 圖如圖（b）所示。 參考答案： 利用對(duì)稱性結(jié)構(gòu)簡(jiǎn)化為如圖（a）所示。桿件EI為常數(shù)。 作后彎矩圖如圖（f）所示。 參考答案： 基本體系 典型方程 用位移法計(jì)算圖示連續(xù)梁，列出位移法方程，求出系數(shù)項(xiàng)和自由項(xiàng)。 參考答案： 典型方程 Visafree policy brings Chengdu biz, tourism boost. Making national headlines several times, Chengdu39。s ancient indigenous religion, while Du jiang yan is considered to be the oldest functioning watercontrol project in the world. Chengdu ranked third in tourist facilities, management and services among 60 Chinese cities in a customer satisfaction survey released last year. But, Li added that efforts are still needed to develop more tourism products, improve English services and provide accurate translation of traffic signs and scenic billboards. Zhao Yun, chairwoman of British Chamber of Commerce Southwest China, told China Daily that his colleagues found the policy very convenient. A British client once flew here and stayed for just one day to check her ordered goods, she said. Zhao was born in Shanxi province, but she has lived in Chengdu for more than 10 years. My life was like a running race moving from place to place. I also lived in Beijing and Shanghai before, she said. But Chengdu is a place that you never want to leave once settling down. It is now my second hometown, she said. If the environment is further improved, the city will attract more people to visit and live, with the 72hour visafree policy and pelling conditions in transportation, culture, climate and cuisine, he said. Foreigners also gave positive feedback on the policy. A spokesman from Dell Inc said the pany has a global hub of operation in Chengdu, so the threeday visa has an immediate and positive influence on the pany39。an.Lou held a joint interview with 27 media, including China Daily, the first in a series of interviews entitled Chinese Media Along the Silk Road. The interviews will be in Shaanxi and Gansu provinces and the Xinjiang Uygur autonomous region, as well as Kazakhstan, Uzbekistan and Turkey.The media group held the first interview on Wednesday morning in Xi39。UE9aQGn8xp$Ramp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmUE9aQGn8xp$Ramp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z8vGtYM*Jgamp。849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^G89AmUE9aQGn8xp$Ramp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z8vGtYM*Jgamp。849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89Amv^$UE9wEwZQcUE%amp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%