1、1第一章 建筑力学一、单项选择题1、静力学的研究对象是( )。A刚体 B变形固体 C塑性体 D弹性体2、材料力学的研究对象是( )。A刚体 B变形固体 C塑性体 D弹性体3、抵抗( )的能力称为强度。A破坏 B.变形 C外力 D.荷载4、抵抗( )的能力称为强度。A.破坏 B变形 C外力 B荷载 5、抵抗( )的能力称为稳定性。A破坏 B变形 C外力 D荷栽6、关于约束反力,下面哪种说话不正确( )。A柔索的约束反力沿着柔索中心线,只能为拉力B链杆的约束反力沿着链杆的中心线,可以是拉力,也可以是压力C固定支座的约束反力有三个B. 固定铰链支座的约束反力通过铰链中心方向不定,用一对正交分力表示。
2、7、刚体是指( )。A要变形的物体 B具有刚性的物体C刚度较大的物体 D不变形的物体8、作用在刚体上的一群力叫做( )A力偶 B力系 C分力 B等效力系9、有两个力,大小相等,方向相反,作用在一条直线上,则这两个力( )A.一定是二力平衡 B一定是作用力与反作用力C.一定约束与约束反力 D.不能确定1 0、力的可传性原理只适用于( )A变形体 B刚体 C任意物体 D移动着的物体11、约束反力以外的其他力统称为( )A.主动力 B反作用力 C支持力 D作用力 12、当力垂直与轴时,力在轴上的投影( ) A等于零 B.大于零 C等于自身 D小于零 13、当力平行于轴时,力在轴上的投影( ) A等于
3、零 B大于零 C等于自身 D小于零 14、当力 F 与 x 轴成 600角时,力在 x 轴上的投影为( ) A等于零 B大于零 C (12)F D0.866F15、合力在任一轴上的投影,等于力系中各个分力在同一轴上投影的( )A代数和 B矢量和 C和 D矢量差 1 6、平面力系的合力对任一点的力矩,等于力系中各个分力对同一点的力矩的( )A代数和 B矢量和 C和 D矢量差 17、作用于刚体的力,可以平移到刚体上的任一点,但必须附加( )A一个力 B一个力偶 C一对力 D一对力偶 18、作用于物体上同一点的两个力可以合成为( )2A一个力 B一个力加个力偶 C一个力偶 D一个力或一个力偶 19、
4、一起吊一个重 l0KN 的构件钢丝绳与水平夹角 a 为 450,构件匀速上升时,绳的拉力是( ) KNA42l B506 C634 D7O7 20、一个固定环受到三绳索的拉力,T 1、T 2、T 3,方向如图示,则三个拉力合力大小为( ) KN。A287 B 298 C254 D26621、 图示支架 BC 杆的内力为( )KNA1.12 B1.15 C0.5 D222、下图示结构中,杆为钢杆,A 1 = 1 000mm2,杆为木杆,A 2 =20000 3mm2,P=20KN,则杆的应力为( )Mpa A10 B1532 C1732 D2023、梁 AB 上作用有一个力偶,力偶矩 m = 1
5、5KNm,梁长 L=3m,梁的自重不计,则 A、B 出支座反力为( )KNA2 B3 C4 D.524、 已知 Fl=F1=80N;F2=F2=130N; F3=F3=100N;dl=70cm、d2=60cm、d3=50cm则图所示三个力偶的合力偶矩为( )Nm。A 12 B 28 C 24 D 3625、力在坐标轴上的投影说法正确的是( )A矢量 B标量 C有方向的几何量 D有方向,有正负之分的量26、平面汇交力系合成的结果是( )A一个合力 B合力偶 C合力矩 D结果不确定27、一个平面汇交力系在两互相垂直的两坐标轴上的投影分别为 3 和 4,力的单位是KN,则该力系的合力是( )KNA2
6、 B3 C4 D528、用解析法求解平面汇交力系的合力时,若采用的坐标系不同,则所求解的合力( )A相同 B不同 C无法确定 D方向不同29、 力矩的计算式为( )4A M(F)=Fd BMo(F)=Fd CMO(F)=Fd DM(F,F )=Fd30、 力偶计算式为( )AM(F)=Fd BMo(F)=Fd CMo(F)=Fd DM(F,F 7)=Fd31、关于力矩,下面那种说法是不正确的( )A力矩的计算式为 m(F)=FdB若力的作用线通过矩心,则力矩等于零C.力沿其作用线移动动时,力矩不变D力矩的值与矩心位置有关32、图示支座的支反力为( )。33、关于力偶,下面哪种说法是不正确的(
7、)A力偶在任一轴上的投影均为零B力偶可以被一个力平衡C力偶对其作用面的任一点之矩恒等于力偶矩 。D力偶无合力34、关于力偶,下面哪种说法是不正确的(“ ) A力偶在任一轴上的投影均为零B力偶只能被力偶平衡C力偶对刚体的转动效应取决于力偶矩。D组成力偶的力的大小,力偶臂的长短可以任意改变35、若力 P 的作用线通过其矩心,则其力矩( )A不为 0 B.等于 0 C效应发生改变 D使物体发生转动36、力偶的作用效果是使物体发生( )A移动 B移动和转动 C转动 D不能确定37、如图所示,AB 杆 B 端有一个力偶作用,其力偶矩 m=100NM,杆的自重不计,则 CD杆轴力为( )N。A80 890
8、 C100 D11 038、平面汇交力系的合成结果是( )A一个力 B一个力偶C一个力加上一个力偶 D.一对力39、平面力偶系的合成结果是( ) A一个力 B一个力偶 C一个力加上一个力偶 D一对力40、平面汇交力系的平衡方程是( )AM=0 B. X=0 Y=0 CX=0 Y=0 Mo=0、DY=0 Mo=041、平面一般力系的平衡方程是( ) 5AY M 0=0 BX=0 Y=0 CX=0 Y=0 Mo=0 DX=0 Mo=042、平面平行力系的平衡方程是( )AM=0 BX=0 Y=0 CX=0 Y=0 Mo=0 D.Y=0 Mo=043、图示梁的支座反力 XA为( )KN。AO701
9、8O707 C7O7 D701 。44、简支梁受力如图,其支座反力 YA为( )KN。A828 8354 C1126 D124345、外伸梁受荷载如图所示,已知均布荷载集度 q=20KNm,力偶矩 m=38KNm,集中力P=20KN支座 A 的反力 XA。为( )。A27 B107 C-27 D0 46、图示刚架的支反力 RB为( )6A19 B1l C20 D.-11 47、支架承受重力 G 的重物,A,B,C 三处均为铰链,支座 A 处约束反力 Ya 为( )A15G B05G C1732G D1414G48、确定内力的方法称为( )A截面法 B平衡方程法 C矢量法 D代数法49、内力在截
10、面上分布的密集程度称为( )A应力 B.力度 C正应力 D.剪应力50、图示轴向受力杆轴力 Nl 是( )KN。A5 B-5 C20 D.-20 、51、平面一般力系平衡方程的形式不包括( )。A一矩式 B二矩式 C三矩式 D投影式52、图示轴向受力杆的轴力 NAB是( )KN。3KN 4KN 3KN 2KNA.2KN B.3KN C.-1KN D.1KN753、图示轴向受力杆的内力 NBC是( )KN。2KN 4KN 6KN 4KNA5 B-5 C2 D254、图示轴向受力杆的内力 NCD是( ) KNA5 B-5 C2 D. -2 55、轴向拉压杆的绝对轴向线变形L 等于( )ANEA B
11、NLEA CNLEI NEI56、轴向拉压杆的虎克定律为( )。AL =NEA B. L =NLEA CL=NLEI DL =NEI57、图示支座的支反力为( )。58、轴向受力杆的内力叫( )A轴力 B.剪力 C弯矩 D扭矩59、应力的单位是( )AN BNM CPa D无名数60、图示支架中 BC 杆的受力图为( )。61、虎克定律的一般形式表明( ) A当材料在弹性范围内时,应力与应变成正比。 B应力与材料有关 8C应变与材料无关 D应力与应变任何情况下都成正比 62、拉、压杆在外力和横截面积均相等的前提下,矩形、正方形、圆形三种截面的正应力大小关系是( )。A 矩 = 正 = 圆 B.
12、 矩 正 圆C. 矩 圆 正 D 矩 and , lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management, strengthen supervision and inspection, from th
13、e thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set a
14、n example for compliance with the and is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly
15、 establish the awareness of Party Constitution, sense of discipline 20and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comp
16、ly with and . To firmly establish the discipline must first be disciplined, the supervisor will be subject to the supervision of “concept, and consciously safeguard and implement party compasses party, take the lead in practicing“ three strict real strict, so loyal, clean, play. To be good at learni
17、ng, the Constitution and the as morality, politics and brought to fruition; to implement , do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is
18、indeed the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will fin
19、d in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, 21but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Beco
20、me more perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes,
21、 but experience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will no
22、t good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4
23、, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around 22the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at a
24、nd deal with it. Dont always take everything back to things, and dont get into a blind alley, dont want to face, dont be narrow-minded. Poke to care, is a kind of open-minded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to t
25、reat people; I am not afraid of the truth to tell the best friend, Im afraid he turned to it as a joke to tell dont 6, when we are in a positive frame of mind, you will find many good things; and when we are in a negative state of mind, you will find many depressed things; life happy and worry, all
26、is you of life attitude, optimistic, good luck; loss of sink, Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this
27、 society read. Tired and sad, squat down, to their a hug. Because the world no one can sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can understand. Then you only tears to 23smile. 8, each people have youth,Each youth are a story, the life of the world never ge
28、ts easier, I want what, wish the world all know, as has been the same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the world is followed by birth, Rangrang, important thing is often the most difficult to open ones mouth, because words will
29、 reduce its importance; to let strangers people care about your life in the good things, the original is not easy 10, do not blame, do not laugh at who, also dont envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best tr
30、avel life is that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomfortable, and ultimately to heal themselves or their own, others may got you to comfort, but never know your heart is how wanji
31、anchuanxin. 12, maam, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and an exception is better to give than to what 13, dont envy him A sum of, 24dont lose your life and the life, respectively is:
32、 the former is a we experienced cannot escape in a day finally will last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 14, learn to smile, learn to strong, the world you know so many people, so many people and you are, you cannot change also ca
33、nt let everyone like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negat
34、ive emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an e
35、yeful of tears, there is no trace of emotion, there is no gleam of hope, no desire, no action, no static, there is only one kind of downward sinking feeling, sink A murky? 6? 7? 6? 7 sink? 6? 7? 6? 7 toward the bottom of the sink. 17, in some way, do not go, you will not know the other side scenery
36、is beautiful. To 25you is not good, you do not mind too much, no one has an obligation to you; you learn knowledge, is you have weapons, you can start from scratch, but not unarmed; how do you treat people, does not represent how others treat you, if cannot see through this point, only inviting worr
37、y. 18, time is like a sponge in the water, as long as you are willing to squeeze, the total water is still there. Every life, after the ups and downs The best test of live, to life, survival and continuation, do not stop the struggle in the joys and sorrows of life on the road, so that different sou
38、l to bear life beat, acceptance of suffering. 19, indifferent to heart, calmly in table, elegant and comfortable life, do not take what is so important. The pursuit will be disappointed; to be alive, you will have trouble. Life is the most afraid of what all want to care about, but also what all gra
39、sp is not firm, without scenery, separated populations, such as not to desire, all docked in the fate of the end. Why is too rigid, the natural, to go stay not to live, let go of obsession, revel is 20, if the fate of the broken Hopes of sailing, please dont despair, the coast is still, if the fate
40、of the withered petals of the beautiful, please do not sink, the spring is still, 26life will always be endless trouble, please dont helpless, because they are still alive, is still a dream, the sun still, we still. Lost, keep memories; to get, must work to; but the most important is good to cherish
41、 their own. 21, life, select the complex, is to choose the pain; choose a simple, is choose to be happy. The complex world like aSignificance of pride. Hope is the ornate palace, outside people admiring the magnificent, living in the deep knowledge of living it to pay the price. Simple world as a si
42、mple log cabin outside ridiculed shabby, the heart is willing to go live to know the joy. Suffering and joy is their own choice. 22, learn how to use a single powerful heart, let the past be the past, let the future come. Life is really the end of the end of an eagle is flying wings, life is constan
43、tly pursuit. Dont miss to regret, dont wait for old just miss. Time to return, seize every moment, again painstakingly again tired also Those struggling to fly. 23, life could not Yimapingchuan, even flat pavement, inevitably there will be a few pieces of roadblocks. Some of the rocks around the pas
44、t, while others have to move it out. Just move others put the stone is very easy, because the stone from the appearance we can discern; difficult to 27myself to move away the heart of stone head. Leave time to spend with her, often reflect my heart, so as to remove your heart of stone. 24, everythin
45、g does not have to be demanding, come to, everything does not have to care about, over the past; failing to do not frown, laugh it laugh. Results Dont demand, do to; life is a simple, calm and peaceful. Always not to choose their own path and regret, life is like a train, the scenery and then the Un
46、ited States will retreat, the passage of time and encounter will eventually drifting further and further away, before is always himself. 25, everyone has a weakness, weakness is true humanity. That has no weakness, a shallow person. That people think there is no weakness, mostly false. Life has shor
47、tcomings, there are shortcomings is the real life. That no one regret, or childish or numbness or Self deception. It is in tolerance of weakness and so on to accept, people live happily.Hello, everyone! I am a party member. The title of my speech is: and Chinese Communist Party discipline and punishment regulations. We Heyuan male passers-by