promotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve natural resources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve the party's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests grow, employers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat机 密★启用前
大连理工大学网络教育学院
2014年3月份《钢筋混凝土结构》课程考试 模拟试卷解题思路
考试形式：闭卷 试卷类型：B
一、单项选择题（本大题共5小题，每小题2分，共10分）
1． B 2．B 3． A 4．C 5．D
二、判断题（本大题共5小题，每小题2分，共10分）
1． × 2． √ 3． × 4． √ 5． √
三、填空题（本大题共5小题，每小题2分，共20分）
1．高；低 2．收缩；徐变 3．屈服；屈服 4．斜压；斜拉 5．C40；C30
四、名词解释（本大题共2小题，每小题5分，共10分）
1．承载能力极限状态
解题思路：教材第三章第三节，概率极限状态设计方法，扼要作答。（5分） 结构或构件达到最大承载能力，（2分）
或者达到不适于继续承载的变形状态，称为承载能力极限状态（3分） 2．适筋梁
解题思路：教材第四章第二节，受弯构件正截面破坏形态，扼要作答。（5分）
当纵向配筋率适中时，纵向钢筋的屈服先于受压区混凝土被压碎，梁是因钢筋受拉屈服而逐渐破坏的，破坏过程较长，有一定的延性，称之为适筋破坏，相应的梁称为适筋梁。
五、简答题（本大题共2小题，每小题10分，共20分）
1．混凝土的弹性模量如何计算？
解题思路：教材第二章第一节，混凝土的物理力学性能，扼要作答。（10分） 答：混凝土棱柱体受压时，在应力-应变曲线的原点做一切线，(3分) 其斜率为混凝土的原点模量，称为弹性模量，以cE表示，变曲线在原点处的切线与横坐标的夹角。（3分） 2．保证钢筋与混凝土的粘结有哪些构造措施？
bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests and try again, is an affirmation of Deng Xiao-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \o Mao Ze-Dong's historical cycle of\profile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the law, while improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right now, not only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \en does not speak of\Neither deny the history of the CPC Central Committee on several issues ...Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysis，（4分） 式中为混凝土应力-应
promotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve natural resources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve the party's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests grow, employers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat解题思路：教材第二章第三节，钢筋与混凝土的粘结，扼要作答。（10分）
为保证钢筋和混凝土之间有足够的粘结力，可采用以下措施：（1）采用变形钢筋；（2）选择适当的钢筋间距；（3）使用横向钢筋；（4）满足混凝土保护层最小厚度的要求；（5）保证最小搭接长度和锚固长度；（6）在钢筋端部设置弯钩。
六、计算题（本大题共2小题，每小题15分，共30分）
1．已知：某四层四跨现浇框架结构的底层内柱，轴向力设计值N?1500kN，H?4.8m，混凝土强度等级为C20，钢筋用HRB400级，已知底层柱的计算长度为该层高度，选用柱的截面为
350mm?350mm，求该柱的纵筋面积。已知：fc?9.6N/mm2，f'y?360N/mm2
l0/b ≤8 10 12 14 解题思路：参考教材第七章例题7-2
? ≤1.0 0.98 0.95 0.92 （1）根据已知条件，列出基本数据；（2分）（2）计算底层柱的计算长度，（2分）并计算出稳定系数；（2分）（3）由Nu?0.9?(fcA?fy'As')（9分） 全截面的配筋率。
解：（1）C20的混凝土，fc?9.6N/mm2，f'y?360N/mm（2分） （2）底层柱：l0?H?4.8m （1分）
由l0/b?4.8/0.4?12，查钢筋混凝土构件稳定系数表得??0.95（2分） （3）由Nu?0.9?(fcA?fy'As')得 （2分）
2计算出受压钢筋的截面面积；然后验算单侧配筋配筋率以及
1Nu11500?103As'?(?fcA)?(?9.6?350?350)?1607mm2（2分）
fy'0.9?3600.9?0.95?'?A's1607??0.0131??'A350?350min?0.006，可以（2分）
截面每一侧的配筋率
?'?0.5A's1607?0.5??0.00656??'A350?350min?0.002，可以（2分）
2故受压纵筋最小配筋率，满足要求。选用4根直径25mm的钢筋，A's?1964mm。（2分） 2．已知某屋架下弦按轴心受拉构件设计，截面尺寸为b?h?160mm?200mm，保护层厚度
bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests
and try again, is an affirmation of Deng Xiao-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \o Mao Ze-Dong's historical cycle of\profile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the law, while improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right now, not only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \en does not speak of\Neither deny the history of the CPC Central Committee on several issues ...
Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysis2
promotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve natural resources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and devlopment of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve the party's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests grow, employers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariatc?25mm，配置4根直径14mm的HRB400级钢筋As?615mm2，混凝土强度等级为C40，荷载
效应的标准组合的轴向拉力Nk?156kN，wlim?0.3mm。试验算最大裂缝宽度。已知，?cr?2.7 解题思路：参考第九章例题9-1 （1）计算截面的有效配筋率?te?AsN；（4分）（2）求出deq；（2分）?sk?kAs； Ate（4分）??1.1?0.65fk?te?sk（2分）
；
（3）计算出最大裂缝宽度
wmax??cr??skEs(1.9c?0.08deq?te)（3分）
解：根据已知条件可知，轴心受拉杆件?cr?2.7（2分） （1）?te?As615??0.0192 （2分） Ate160?200（2）纵向受拉钢筋的等效直径为：deq?d （2分）
所以
deq?te?14?729.2 （2分）
0.0192?sk?Nk/As?156000/615?253.7N/mm2 （2分） ??1.1?0.65ftk?te?sk?1.1?0.652.40?0.78 （2分）
0.0192?253.7（3）最大裂缝宽度为
wmax??cr??skEs(1.9c?0.08deq?te)?2.7?0.78?253.7(1.9?25?0.08?729.2)?0.28?wlim?0.3mm52?10满足要求。 （3分）
bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests and try again, is an affirmation of Deng Xia-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \-Dong's historical cycle of\ofile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the law, while improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \nt\ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right nownot only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \does not speak of\Neither deny the history of the CPC Central Committee on several issues ...Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysis
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大工《钢筋混凝土结构》课程考试模拟试卷B完整答案
