工程结构设计 钢筋混凝土梁配筋设计.doc

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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流工程结构设计 钢筋混凝土梁配筋设计.精品文档.苏州大学城市轨道交通学院工程结构课程设计报告设计名称： 专业（年级、班） 姓 名： 学 号： 完成日期： 自发组织的讨论小组成员（若有）： 目录一钢筋混凝土梁的课程设计任务书2二内力计算5三正截面抗弯承载力计算6四正截面抗弯承载力计算7五斜截面抗剪承载力计算8六斜截面抗弯承载力计算表格9七提示类问题10八配筋图一钢筋混凝土梁的课程设计任务书一、 设计资料1、某建筑的一梁，其尺寸和计算简图如附图所示。2、梁承受的荷载为：所有恒载包括梁自重的标准值, 所有活载的标准值。3、选用材料：受力钢筋为HRB3

2、35钢筋（），其它选用HPB235钢筋（）；混凝土类似C25等级，其强度随学生学号而变： 本设计学号为11二、设计要求1、梁的内力计算按书上371页的表B.4计算。2、按要求需计算配筋，假设配筋全部在图（c2）截面图的虚线矩形框内。3、先进行正截面抗弯承载力计算，将关键结果列表表示出，按如下方式： 截面关键结果 截面1截面2弯矩计算钢筋面积钢筋选用实际钢筋面积4、再进行斜截面抗剪承载力计算，将关键结果列表表示出，自己设计表格。5、在进行以上计算时，至少给出一个代表性截面的计算全过程。6、用CAD软件绘制梁的模板及其配筋图，包括各个截面的。对于构造配筋，请查阅书上相关规定。可以参考书上P137页

3、的配筋图。7、装订设计计算书一份（装订顺序：封面，目录，任务书，内力计算，正截面抗弯承载力计算，斜截面抗剪承载力计算，配筋图，提示类小问题及其答案，其它如学习总结、感想等）。8、统一使用附件中的封面。9、若有不明之处，可以询问江老师，或自己做个合理假设。10、若参与自发组织的同学小组讨论，请在封面处写出小组成员名字与学号。11、其它要求：（1）页面设置：纸型：A4；页边距：上3.5cm，下3cm，左3cm，右2.5cm；配筋图可以打印成A3后折叠装订；（2）标题字体：黑体;其它字体、字号（含正文）：宋体，小四12、截止日期：5月31日；提交一封纸质报告，连同批改好的第一稿。并发一份电子稿（最好

4、是pdf文件）到江老师的qq邮箱。三、 提示类小问题（必做，整理后附在设计之后）Q1：梁的计算简图中，荷载是设计值还是标准值，为什么？Q2： 正截面抗弯承载力计算时，哪些是控制截面？各跨跨中按什么形式的梁计算？矩形梁还是T形梁？支座处呢？Q3：斜截面抗剪承载力计算时，哪些是控制截面？Q4：以上采用了什么极限状态设计方法？还需进行哪些方面的计算，用什么极限状态设计方法？用设计值还是标准值？（对还需进行的计算，这里暂不要求）请根据此问题，好好写一段陈述，单独一页附在斜截面抗剪承载力计算后面。Q5：以上方法采用了弹性理论方法还是塑性理论方法？二者在内力分布和配筋上有何区别？四、 附图（a）梁结构图（

5、b）计算简图（c1）梁的截面图（c2）梁的截面图，同（c1）,但更加有利放大中间部分，便于表示矩形框内的配筋二内力计算 = 29.67KN/M边跨 = 5875 mm 中跨 = 5750 mm = = = 0.078 29.67 = 79.878 KN m = = = 0.033 29.67 = 32.371 KN m = = 0.046 29.67 = 45.124 KN m = = = -0.106 29.67 = -107.528 KN m = = = -0.079 29.67 = -77.496 KN m = = 0.394 29.67 = 67.217 KN= = -0.606 29

6、.67 = -103.385 KN= = 0.526 29.67 = 89.737 KN= = -0.474 29.67 = -80.866 KN= = 0.500 29.67 = 85.301 KN三正截面抗弯承载力计算举例计算以截面一为例子： = 7.575 KN/m ; = 14.7 KN/m ; = 300 N/b = 200 mm ; = 2000 mm ; h = 450 mm = 80 mm ; = 35mm(假设布置单排) ； = 415 mm = 11.9 + 0.05 ( 学号 30 ) = 10.95 N/( - ) = 1.0 10.95 2000 80 (415-40

7、) = 657 KNm 79.878 KNm 为第一类T型截面 = = 0.002 = = 0.021 ; = 1 - = 0.021 = = 180 mm四正截面抗弯承载力计算表格 截面关键结果 截面1截面B截面2截面C截面3弯矩 / (KNm)79.878-107.52832.371-77.49645.1240.0210.3230.00860.2050.0120.0210.4040.00860.2320.0120.9890.7970.9960.8840.994/6491154261704365单排/双排单双单单单钢筋选用2 161 182 182 202 142 142 162 16实际钢

8、筋面积/656.51137308710402五斜截面抗剪承载力计算举例计算以截面A与截面为例：A截面 = 1.27 N/ ; b = 200 mm ; = 415 mm; = 10.95 N/= 210 N/ ; = 2.075 67217 N ; 不需要配置箍筋，应按构造配置箍筋 = 1.27 N/ ; b = 200 mm ; = 390 mm; = 10.95 N/= 210 N/ ; = 1.95 103385 N ; 需要按照计算配置箍筋 = 0.327 ; 选双肢 6 作为箍筋，则：S = = 174 mm取 S = 170 mm ,则： = = = 0.168 % = 0.24

9、= 0.145 % 满足题意 ，S = 170 mm六斜截面抗弯承载力计算表格截面关键结果AV/N672171033858973780866853010.25b/N227212.5213525213525227212.5227212.50.7b/N7378769342693427378773787箍筋选用2 62 62 62 62 6S=/mm构造配筋174290891548实际箍筋间距S/mm170=200170170170170七提示类问题Q1：梁的计算简图中，荷载是设计值还是标准值，为什么？ 答:设计值对应承载能力极限状态，而且设计值比标准值要大，所以用设计值这样更安全。Q2： 正截面抗

10、弯承载力计算时，哪些是控制截面？各跨跨中按什么形式的梁计算？矩形梁还是T形梁？支座处呢？ 答：控制截面为各跨跨中截面，以及支座处截面。 跨中是T形梁，支座处是矩形梁。Q3：斜截面抗剪承载力计算时，哪些是控制截面？ 答：I 支座边缘处截面。 II 受拉区弯起钢筋起点截面 III 箍筋截面面积或间距改变处的截面 IV 腹板宽度改变处的截面Q4：以上采用了什么极限状态设计方法？还需进行哪些方面的计算，用什么极限状态设计方法？用设计值还是标准值？（对还需进行的计算，这里暂不要求）请根据此问题，好好写一段陈述，单独一页附在斜截面抗剪承载力计算后面。 答：采用了承载力极限状态，对应的应该使用设计值计算，这

11、样更加安全可靠。然后还要进行最大裂缝宽度计算和最大扰度形变等运算，以满足适用性和耐久性的要求。Q5：以上方法采用了弹性理论方法还是塑性理论方法？二者在内力分布和配筋上有何区别？ 答：是弹性理论方法。按弹性理论计算内力分布不但符合平衡条件而且符合变形协调条件，按塑性内力重分部理论虽然任然符合平衡条件，但变形协调关系在塑性铰截面处已不再适用。塑性铰的转动幅度与配筋率有关，为避免受压区混凝土的过早破坏，以实现完全的内力重分布，塑性铰截面的最大配筋率应较一般截面的最大配筋率为低，钢筋且宜用HRB235级，HRB335级。（英文版 ） easily blame, to prevent the broke

12、n window effect. Supervise the leading cadres to play an exemplary role, take the lead in the strict implementation of the 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. Throughou

13、t the discipline in the daily supervision and management, strengthen supervision and inspection, from the 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 department

14、s for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set an 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 defende

15、rs, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly establish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rul

16、e of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply 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 part

17、y, take the lead in practicing three strict real strict, so loyal, clean, play. To be good at learning, 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 contro

18、l inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is 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 hap

19、pen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, c

20、an also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become 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 t

21、hemselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, 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, m

22、ore did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not 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 abandon

23、ed, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, 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 the chores and penny wise and pound foolish, not wo

24、rth the candle. Some things to attract trouble and worry, completely depends on how we look at and 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

25、 afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat 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

26、are in a negative state of mind, you will find many depressed things; life happy and worry, all 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 mental

27、ity decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this 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 te

28、ars to smile. 8, each people have youth,Each youth are a story, the life of the world never gets 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

29、, Rangrang, important thing is often the most difficult to open ones mouth, because words will 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 feelin

30、g, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel 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

31、themselves or their own, others may got you to comfort, but never know your heart is how wanjianchuanxin. 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

32、 than to what 13, dont envy him A sum of, dont lose your life and the life, respectively is: 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 stro

33、ng, the world you know so many people, so many people and you are, you cannot change also cant 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 i

34、s to control their own emotions. With the mouth is the most stupid behavior. A control negative 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,

35、 that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful 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 t

36、he bottom of the sink. 17, in some way, do not go, you will not know the other side scenery is beautiful. To you 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, doe

37、s not represent how others treat you, if cannot see through this point, only inviting worry. 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, d

38、o not stop the struggle in the joys and sorrows of life on the road, so that different soul 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 h

39、ave trouble. Life is the most afraid of what all want to care about, but also what all grasp 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

40、fate of the broken Hopes of sailing, please dont despair, the coast is still, if the fate of the withered petals of the beautiful, please do not sink, the spring is still, life will always be endless trouble, please dont helpless, because they are still alive, is still a dream, the sun still, we sti

41、ll. Lost, keep memories; to get, must work to; but the most important is good to cherish 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 magni

42、ficent, living in the deep knowledge of living it to pay the price. Simple world as a simple 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 fut

43、ure come. Life is really the end of the end of an eagle is flying wings, life is constantly 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 pavemen

44、t, inevitably there will be a few pieces of roadblocks. Some of the rocks around the past, 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 myself 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, ev