课程设计-整体式单向板肋梁楼盖设计.doc

目 录1.设计资料21.1建造地点与基本概况31.2楼面构造层做法（至上而下）31.3设计方案31.4材料选用32.楼盖的结构平面布置43.板的设计53.1荷载设计值53.2计算简图53.3弯矩计算值63.4正截面受弯承载力计算64.次梁设计74.1荷载设计值74.2计算简图7 4.3内力计算74.4承载力计算84.4.1正截面受弯承载力84.4.2斜截面受剪承载95.主梁设计95.1荷载设计值95.2计算简图105.3内力设计值及包络图105.3.1弯矩设计值115.3.2剪力设计值115.3.3弯矩包络图125.4承载力计算135.4.1正面受弯承载力135.4.2斜截面受剪承载力146、绘制施工图146.1施工说明146.2结构平面布置图146.3板配筋图146.4 次梁配筋图146.5主梁配筋图15整体式单向板肋梁楼盖设计 1、设计资料 某一般金工车间楼盖，采用整体式钢筋混凝土单向板肋梁楼盖结构形式，其柱网布置下图所示1、1建造地点与基本概况建造地点为西安市某地，外墙采用490mm厚的砖墙。该结构的重要性系数为1.0，使用环境类别为2a类。板的外墙上的支承长度为120mm，梁在外墙上的支承长度为370mm。1、2楼面构造层做法（至上而下） 楼面水泥砂浆面层厚20mm (=20kN/m2); 现浇混凝土楼板（厚度自定） (=25kN/m2) 混合砂浆天棚抹灰厚15mm （=17kN/m3） 1、3设计方案题号（m）（m）可变荷载取值3a6a7b5.76.6一类金工 1、4材料选用 楼板、次梁及主梁的混凝土强度等级均为C30（fc=14.3N/mm2 ；ft=1.43 N/mm2 ）板中钢筋和梁中箍紧采用HPB335级钢筋；主梁、次梁受力钢筋采用HRB400级钢筋。板伸入外墙内120mm，次梁及主梁伸入墙内370mm，柱的截面尺寸bh=350mm 350mm， 结构层高为4.2m 2、楼盖的结构平面布置主梁沿横向布置，次梁沿纵向布置。主梁跨度为6.6m，次梁的跨度为5.7m，主梁每跨内布置两根次梁，板的跨度为/=6.6/3=2.2，因此按单向板设计。按跨高比条件，要求板厚h2200/30=73mm，对工业建筑的楼盖板，要求h80mm，取板厚h=80mm。次梁截面高度应满足h=/18/12=5700/185700/12=317475mm。考虑到楼面可变荷载比较大，取h=475mm。截面宽度取b=220mm主梁截面高度应满足h=/15/12=6600/156600/10=440660mm。取h=650mm截面宽度为b=300mm3、板的设计3.1荷载 板的永久荷载标准值20mm厚楼面水泥砂浆面层 0.0220=0.4kN/80mm厚现浇钢筋混凝土楼板 0.0825=2kN/15mm厚混合砂浆抹灰 0.01517=0.255kN/小计 2.655kN/板的可变标准荷载值 14.0kN/永久荷载分项系数取1.2，可变荷载分项系数应取1.4。于是板的永久荷载设计值 g=2.6551.2=3.186kN/可变荷载设计值 q=14.01.4=19.6kN/荷载总设计值 g+q=3.186+19.6=22.786kN/ 3、2计算简图 按塑性内力重分布设计，次梁截面为220mm475mm，板在墙上的支承长度为120mm。按塑性内力重分布设计，板的计算跨度：边跨=+h/2=2200-120-110+80/2=2010mm中间跨：=2200-220=1980mm因跨度相差小于10%，可按等跨连续板计算。取1m宽板带作为计算单元，计算简图如图所示 3.3弯矩计算值不考虑板块供作用截面弯矩的折减。由表11-1可查得，板的弯矩系数分别为：边支座为0，边跨中，1/11；离端第二支座，-1/11；中跨中，1/16；中间支座，-1/14。故由M=（g+q）l可得：因为梁搁置在墩墙上，所以边上支座处弯矩为零。连续板各面弯矩计算截面边跨跨中1支座B中间跨跨中2、3支座C - M8.37-8.375.58-6.383.4正截面受弯承载力计算环境类别为2a类，C30混凝土，板的最小保护层厚度c=20mm。假定纵向钢筋直径d为 8mm,板厚80mm，=h-c-d/2=80-20-8/2=56mm；板宽b=1000mm。C30混凝土，=1.0，=14.3kN/；HRB335钢筋，=300N/。板配筋计算的过程于下表。 楼面板的配筋计算截 面1B2或3C弯矩设计值（KNm）8.37-8.375.58-6.38=/（b）0.1870.1870.1240.142=1-0.2090.2090.350.1330.1540.35计算配筋（）=b/557.9557.9355.0411.1实际配筋（）8/10110=585.08/10110=585.08/10 170=379.010180=436.0 计算结果表明，支座截面的均小于0.35，符合塑性内力重分布的原则；/b*h=585.0/（100080）=0.73%，此值大于0.45/=0.451.43/300=0.21%，同时大于0.2%，满足最小配筋率。 4.次梁设计 4.1荷载设计值 永久荷载设计值 板传来的恒载： 3.1862.2=7.01kN/ 次梁自重： 250.22（0.475-0.08）1.2=2.607kN/ 次梁抹灰： 170.015（0.475-0.08）21.2=0.242kN/小计 g=9.859kN/板的可变荷载标准值 q=19.62.2=43.12kN/荷载总计算值 P=g+q=53kN/ 4.2计算简图按塑性内力重分布设计。次梁在砖墙上的支承长度为370mm。主梁截面为300mm650mm。计算跨度： 边跨 =（5700-120-300/2）1.025=5566mm 中间跨=5700-300=5400mm因跨度相差小于10%，可按等跨连续板计算。计算简图如下图所示 4.3内力计算 由表11-1、表11-3可分表查得弯矩系数和剪力系数，则; 弯矩设计值 截 面边跨跨中1 支座B跨中23支座C弯矩系数mb - -M=mb（g+q）lo2 148.41 -148.41 96.60 -110.40 剪力设计值 截 面 A支座 B支座左 B支座右 C支座弯矩系数 0.45 0.6 0.55 0.55V=(g+q)lo 132.37176.49 157.41 157.41 4.4承载力计算 4.4.1正截面受弯承载力正截面受弯承载力计算时，跨内按T形截面计算，翼缘宽度去=/3=5700/3=1900mm；又=b+=220+2000=2220,b+12=220+1280=1180故取=1180mm。除支座B截面纵向钢筋排两排布置外。其余截面均布置一排。环境类别为2a类，C30混凝土，梁的最小保护厚度c=25mm，假定箍紧直径为10mm，纵向钢筋直径20mm,则一排纵向钢筋=475-25-10-20/2=430mm二排纵向钢筋=430-20=410mm。C30混凝土，=1.0，=1，=14.3N/，=1.43N/；纵向钢筋采用HRB400钢，=360N/，箍筋采用HRB335钢筋，=360N/。正截面承载力计算过程列于下表。经判别跨内截面均属于第一类T形截面。 次梁正截面受弯承载力计算截 面1B2C弯矩设计值（KNm）148.41-148.4196.60-110.40=/（b）或=/（）0.048 0.281 0.031 0.190=1-0.0500.3380.350.0320.2130.35=b/或=/1007.81211.0645.0800.40选配钢筋（）41810175181072 216+118 654.5416 804 计算结果表明，支座截面的均小于0.35；/b*h=1071/（220475）=1%，此值大于0.45/=0.451.43/360=0.18%，同时大于0.2%，满足最小配筋率的要求。4.4.2斜截面受剪承载斜截面受剪承载力计算包括：截面尺寸的复核、腹筋计算和最小配筋率验算。验算截面尺寸：=-=410-80=330mm，因/b=330/220=1.54，截面尺寸按下式验算：0.25b=0.25114.3220410=322.5N=179.49N，截面尺寸满足要求。计算所需腹筋采用采用8双支箍筋，计算支座B左侧截面。由可得到箍筋间距 =173调幅后受剪承载力应加强，梁局部范围内将计算的箍筋面积增加20%或箍筋间距减小20%。现调整箍筋间距s=0.8173=138mm，截面高度在300到500的梁，最大箍紧间距200最后取箍紧间距s=140。为了方便施工，沿梁长度不变。验算配筋率下限值：弯矩弯矩调幅时要求的配筋率下限为：0.3=0.314.3/360=0.12%。实际配筋率=101/（220140）=0.33%0.12%满足要求。 5.主梁设计主梁按弹性方法设计。5.1荷载设计值为了简化计算将主梁自重等效为集中荷载。次梁传来的永久荷载 9.8595.7=56.2kN主梁自重（含粉刷）（0.65-0.08）0.32.225+0.015（0.65-0.08）22.217）1.2=12.053kN永久荷载设计值 G=56.2+12.053=68.3kN 可变荷载设计值 Q=43.125.7=245.8kN 5.2计算简图因主梁的线刚度与柱线刚度之比大于5，竖向荷载下主梁内力近视按连续梁计算，按弹性理论设计，计算跨度支承中心线之间的距离，=6600。端部支承在砖墙上，支承长度为370mm，中间支承在350mm350mm的混凝土柱上，其计算跨度：边跨 =1.025+b/2=1.025(6600-120-175)+350/2=6638mm =+a/2+b/2=6600-120-175+370/2+350/2=6665mm,则 =6640mm 中跨 =6600mm主梁的计算简图如下，因跨度相差不超过10%，故可利用附表6-2计算内力 5.3内力设计值及包络图5.3.1弯矩设计值弯矩M=G+Q式中系数、由附表6-2相应栏内查得=0.24468.36.64+0.289245.86.64=582.16kNm=-0.26768.36.64-0.311245.86.6=-628.50kNm=0.06768.36.6+0.200245.86.6=354.66kNm 5.3.2剪力设计值剪力V=G+Q式中系数、由附表6-2相应栏内查得 =0.73368.3+0.866245.8=262.93kN =-1.26768.3-1.311245.8=-408.78kN =1.068.3+1.222245.8=368.67kN5.3.3弯矩、剪力包络图弯矩包络图：第1、3跨有可变荷载，第2跨没有可变荷载。支座B或C的弯矩值为=-0.26768.36.64-0.133245.86.64=-338.06kNm在第1跨内以支座弯矩=0，=-338.06kNm的连线为基线。作G=68.3kN，Q=245.8kN的简支梁弯矩图，得第1个集中荷载和第2个集中荷载作用点弯矩值分别为：（G+Q）+=（68.3+245.8）6.6-338.06/3=582.31kNm（与前面计算的=582.16kNm接近）（G+Q）+=（68.3+245.8）6.6-2338.06/3=469.63kNm在第2跨内:以支座弯矩=-338.06kNm，=-338.06kNm的连线作为基线，作G=68.3kN，Q=0的简支弯矩图，得集中荷载作用点处的弯矩值：G+=68.36.6-338.06=-186.93kNm第1、2跨有可变荷载，第3跨没有可变荷载第1跨内：在第1跨内以支座弯矩=0，=-628.50kNm的连线为基线。作G=68.3kN，Q=245.8kN的简支梁弯矩图，得第1个集中荷载和第2个集中荷载作用点弯矩值分别为：（68.3+245.8）6.6-628.50/3=485.50kNm（68.3+245.8）6.6-2628.50/3=276.0kNm在第2跨内：=-0.26768.36.6-0.089245.86.6=-264.74kNm以支座弯矩=-628.50kNm，=-264.74kNm的连线为基线，作G=68.3kN，Q=245.8kN的简支梁弯矩图，得（G+Q）+（-）=（68.3+245.8）6.6-264.74+（-628.50+264.74）=183.77kNm（G+Q）+（-）=（68.3+245.8）6.6-264.74+（-628.50+264.74）=305.03kNm第2跨有可变荷载，第1、3跨没有可变荷载=-0.26768.36.6-0.133245.86.6=-336.12kNm第2跨两集中荷载作用点处可变弯矩分别为：（G+Q）+=（68.3+245.8）6.6-336.12=354.90kNm（与前面计算的=354.66kNm接近）第1、3跨两集中荷载作用点处的弯矩分别为：G+=68.36.6-336.12=38.22kNmG+=68.36.6-336.12=-73.82kNm弯矩包络图如下所示。5.4承载力计算5.4.1正面受弯承载力跨内按T形截面计算，翼缘计算宽度按=6.6/3=2.2mm和b+=6m中较小值确定取=2.2m。主梁混凝土保护层厚度的要求以及跨内截面有效高度的计算方法同次梁，支座截面因存在板、次梁、主梁上部钢筋的交叉重叠，截面有效高度的计算方法有所不同。板混凝土保护层厚度20mm、板上部纵筋10mm、次梁上部纵筋直径20mm。假定主梁上部纵筋直径25mm,则一排钢筋时，=650-20-10-20-25/2=588mm，二排钢筋时，=588-25=563。纵向受力钢筋除B支座截面为2排外，其余均为一排。跨内截面经判别都属于第一类T形截面。B支座边的弯矩设计值=-b/2=-628.50+314.10.35/2=-573.5kNm。正截面受弯承载力的计算过程列于下表。 截 面1B2弯矩设计值（kNm）582.16-573.5354.66-186.93=/（b）或=/（） 0.054 0.422 0.033 0.126=（1+）/20.9720.6980.9830.932=/2829.44053.81704.4947.5选配钢筋（）522+2252882112241655221900225982主梁纵向钢筋的弯起和切断按弯矩包络图确定。 5.4.2斜截面受剪承载力验算截面尺寸：=-=563-80=483mm，因/b=483/300=1.614截面尺寸按下式验算：0.25b=0.25114.3300563=603.82kN=408.78kN，截面尺寸满足要求。计算所需腹筋：采用8150双肢箍筋，=0.71.43300563+360100.5563/150=304.9kN=408.78kN,因此不需配置弯起钢筋。验算最小配箍率：=100.5/(300150)=0.22%0.24=0.10%，满足要求。次梁两侧附加横向钢筋的计算：次梁传来集中力=56.2+245.8=302kN，=650-450=200mm，附加箍筋布置范围s=2+3b=2200+3200=1000mm。取附加箍筋8150双肢，则在长度s内可布置附加箍筋的排数，m=1000/150+1=8排，次梁两侧各布置4排。由式m*n=8236050.3=290KN=302KN，满足要求。因主梁的腹板高度大于450mm，需在梁侧设置纵向构造筋，每侧纵向构造钢筋的截面面积不小于腹板面积的0.1%，且其间距不大于200mm。现每侧配置214，308/（300563=0.18%0.1%，满足要求6、绘制施工图楼盖施工图包括施工说明、结构平面布置图、板配筋图、次梁和主梁配筋图。6、1施工说明1,、本工程设计使用年限为50年，结构安全等级为1.0的安全重要性系数，使用环境类别为2a类。2、 采用下列规范 （1）混凝土结构设计规范GB500102010， （2）建筑结构荷载规范GB50092001。3、 荷载取值：楼面可变荷载标准值14kN/。4、 楼板，次梁及主梁的混凝土强度等级均为C30;版中钢筋，梁中箍紧采用HRB335级钢筋。梁中受力钢筋采用HRB400级钢筋。5、 板的纵向钢筋的混凝土保护层厚度为20mm,梁最外层钢筋的混凝土保护层厚度为25mm。6、2结构平面布置图 图中柱、主梁、次梁、板的代号分别用表示，主、次梁的跨数写在括号内。6、3板配筋图板配筋采用分离式，板面配筋从支座边伸出长度a=/4=1980/4=495mm，板配筋图见附图（板配筋图）。6、4 次梁配筋图 次梁支座截面上部钢筋的第一批切断点要求离支座边/5+20d=5400/5+2018=1440，切断面积要求小于总面积的二分之一，支座切断218,402/1005=0.40.5，C支座第二批切断118，离支座边，剩余218兼做架立筋。端支座上部钢筋伸入主梁（0.14360/d)=564mm。下部纵向钢筋在中间支座的锚固长度12d=216mm。次梁配筋见附图（梁配筋图）。6、5主梁配筋图主梁纵向钢筋的弯起和切断需按弯矩包络图确定。底部纵向钢筋全部伸入支座，不配置弯起钢筋，所以仅需确定B支座上部钢筋的切断点。相关切断点位置见主梁的配筋详图。为你提供优秀的毕业论文参考资料，请您删除以下内容，O(_)O谢谢！2 Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the seven-day Chinese为你提供优秀的毕业论文设计参考资料，请您删除一下内容，O(_)O谢谢！National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may become more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and accommodation prices, with the possibility that there will be no rooms available. It is also common that youllwait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the week-long holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the upcoming Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the recommended travelling route, China Inner Mongolia Arxan Hailar Manzhouli. It is also the joint of the four prairies across the Sino-Mongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of gorgeous colors all the year round - the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name Haren Arxan means hot holy water in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the countrys largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightly-colored scenery full of emotions. Autumn in the northern part of the country comes earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as its time for the wild fruits to ripe. The picturesque Arxan in Autumn is indeed a fairyland only exists in a dream that satisfies all your fantasies. If itrains heavily on Saturday night, some elderly Chinese will say it is because Zhinu, or the Weaving Maid, is crying on the day she met her husband Niulang, or the Cowherd, on the Milky Way. Most Chinese remember being told this romantic tragedy when they were children on Qixi, or the Seventh Night Festival, which falls on the seventh day of the seventh lunar month, which is usually in early August. This year it falls on Saturday, August 2. Folklore Story As the story goes, once there was a cowherd, Niulang, who lived with his elder brother and sister-in-law. But she disliked and abused him, and the boy was forced to leave home with only an old cow for company. The cow, however, was a former god who had violated imperial rules and was sent to earth in bovine form. One day the cow led Niulang to a lake where fairies took a bath on earth. Among them was Zhinu, the most beautiful fairy and a skilled seamstress. The two fell in love at first sight and were soon married. They had a son and daughter and their happy life was held up as an example for hundreds of years in China. Yet in the eyes of the Jade Emperor, the Supreme Deity in Taoism, marriage between a mortal and fairy was strictly forbidden. He ordered the heaven troop to catch Zhinu back. Niulang grew desperate when he discovered Zhinu had been taken back to heaven. Driven by Niulangs misery, the cow told him to turn its hide into a pair of shoes after it died. The magic shoes whisked Niulang, who carried his two children in baskets strung from a shoulder pole, off on a chase after the empress. The pursuit enraged the empress, who took her hairpin and slashed it across the sky creating the Milky Way which separated husband from wife. But all was not lost as magpies, moved by their love and devotion, formed a bridge across the Milky Way to reunite the family. Even the Jade Emperor was touched, and allowed Niulang and Zhinu to meet once a year on the seventh night of the seventh month. This is how Qixi came to be. The festival can be traced back to the Han Dynasty (206 BC-AD 220). Traditionally, people would look up at the sky and find a bright star in the constellation Aquila as well as the star Vega, which are identified as Niulang and Zhinu. The two stars shine on opposite sides of the Milky Way. Customs In bygone days, Qixi was not only a special day for lovers, but also for girls. It is also known as the Begging for Skills Festival or Daughters Festival. In this day, girls will throw a sewing needle into a bowl full of water on the night of Qixi as a test of embroidery skills. If the needle floats on top of the water instead of sinking, it proves the girl is a skilled embroiders. Single women also pray for finding a good husband in the future. And the newly married women pray to become pregnant quickly. Tradition transformed The love story of Niulang and Zhinu, and the Qixi Festival have been handed down for generations. Yet these ancient traditions and customs are slowly dying out. Many modern Chinese, particularly youngsters, seem to know more about St Valentines Day on February 14, characterized by bouquets of roses, chocolates and romantic candlelight dinners, than they do about their home-grown day for lovers. Even Qixi is nowadays referred to as the Chinese Valentines Day. More and more young Chinese people begin to celebrate this day in a very similar way as that in western countries. Fewer people than ever will gaze at the heavens on Saturday to pick out the two stars shining bright on either side of the Milky Way, that is, if people even know on which day Qixi falls. There are ready reminders dotted about, in the form of big ads saying Sales on Chinese Valentines Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A large-scale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. AsAPECis going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2009 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that really draws us close. How we become close to each other was something seems quite natural. We went out to play badminton with other c