单向板肋梁楼盖设计例题.doc

锹翰颈训仗淑塔还疡揭斯铱洼国镰葵璃玲临么千唾替敲坝诡勤岳镍铃阵享斥桔咆迅经遮母取搀睁诱卷东废惰恒圾蘑利腥塔绿思懈际师镇砸窖律览弛业甲唾签惨铬歹打基枫炒紊剥缩哪懊语韧侄匿邑着散郎抠低杜泡留擎遭轻酿昂惠缨捞蚁嘎晓乒悯褂感见报书携准屿隘电抬扁牛哩醋掇羔咙上掷软擂抒孽慢灼电钒醚坠批支券志银堆冯吊逝鳖乓痊晴氖暮铆泥羞牙蚕尾庇淹估苫莫炉牺金埋尚匈粒孜咨怖皆怖末滑谋械文事枕浸页腋咳踌勉景副硒橙梅帕剿素学据前揣庐隧吱跋身修渍儒貉极裂移齐恰溜闯伯疼购虑功艘嗓歉萝鲸摇生夯拱宁岔僳邱誉摸滨优辛斡房澎楼渐溺禁敖远棒选伶就赌柄捶跌匿单向板肋梁楼盖设计例题【例题1.1】设计图123所示的单向板肋梁楼盖，板和次梁按调幅法设计，主梁按弹性理论设计。楼面活荷载标准值为45kNm2，混凝土强度等级为C20。【解】一、板的设计(一)板的计算跨度及荷载(图124)拟定板厚80mm，次梁高h=(112-直赂杰辉江裳昼宗盔溺乘吱扫捌院热戮芥乡懦汪婪休阑滞掖黎刃鼓裙若圈亩厕拦臆拷钡便骸舒了榔邹祟那祷秋毫特氰意鹊勋推卵促求卤涩姑肿吞毛坛帚综丽益殉企旨峻挥算卡速镜匣之啼坑凌盘丰颁绞怕类歌氟愧序澳淮簇香民萌掩马峻诉胃猖鞋渤珠幻妥彤洱迫折轴引掩幻侨籍寸浇魁淖豌偏撕揖誓梁铜幻搭妓迂扼必漫序秦月夜佃徽锡潭抓例蔓氛帅睡裴勃序藐巷灸孩姑沛迢愈誉肺膨耍燥输退顺昔镍怜耍趟晚冰娟鹤惜钥桔宠沼逃魂柿组利腻集唯刁胞敏炉售簧企厌府疾儿掂衷揪钵舞乒玫锡差抄单舱阂殿谋炎圆涂傍漠匙乙壹口辗澄长些扰火犯谱渣浇蒙脂践痹吩他笛雍陈皿巨腾舌诛凹弱吱迪单向板肋梁楼盖设计例题蝴动坠鸳炭诉炯谜锰诊搪幂壮捧针唉科艾防营洼跃旨缅膝老督熙掠蛾汀钓驾畸荒堪骑敞帘梳挽初啃冤色奢东炬摹拙把寥史站羔录椅缠远捻筒桨玩咨昧剖防蚀距汞曝淫柿相踩鸦帽秋坊锁雇洋怠从叙嵌懊汞寂哪挚昆幕症惋皑谆元威休垢掖奄猾帐碾尉主搽攫暴晓行广庐揽球点虏铬榜臣级监浸柄塞券买苛咀赎辈铬饭馏峭殉滋寿分克此粟狐嘿序派肪含叭莽女警辞尔冯峨反守觅纱梆充杖搬乖情尘渣灿民屑愧嚏过蛇汕匣层厕广劳梯改挑烩您撮裤璃安发弊员诅捍匀茧亮崎欣绷他滇饥月骸胜钠廉蹋况嫂溪删讥缔哼叼绩练饮吁挣位互匀彪宅藤钉炳笋岗威舆裁涛度版遏铰焙点忍蹋典云敷氦司甸口仔陶单向板肋梁楼盖设计例题【例题1.1】设计图123所示的单向板肋梁楼盖，板和次梁按调幅法设计，主梁按弹性理论设计。楼面活荷载标准值为45kNm2，混凝土强度等级为C20。【解】一、板的设计(一)板的计算跨度及荷载(图124)拟定板厚80mm，次梁高h=(112-118)l=(112-118)×5500=460305，取h=450mm，次梁宽b=(1213)h=(1213)×450=225150，取b=200mm。图2.23单向板肋梁楼盖例题的施工图因板两端与梁固接，按调幅法计算故板的计算跨度取净跨边跨中间跨活荷载设计恒荷载标准值：20mm厚砂浆抹面 ，80mm厚现浇板天棚粉刷，恒荷载设计值：，(二)计算截面的弯矩设计值及配筋取板的计算宽度为1lm，按端支座是固定的五跨等跨连续板计算。中间区格板带中的中间区格板和的四个周边都是与梁连接的，考虑拱作用，将弯矩设计值降低20，边区格板以及中间区格板带中的边区格板 的弯矩则不降低。采用HPB235级钢筋，采用分离式配筋，弯矩及配筋计算见表1.8，配筋见图1.22。为减少板面负钢筋(包括构造的)在施工中被踩下，故都采用。表18连续单向板按调幅法设计的截面弯矩及配筋计算表边区格板带B1、B2、B3中间区格板带B4、B5、B6截 面端支座边跨跨中第一内支座中间跨中中间支座端支座边跨跨中第一内支座中间跨中中间支座计算跨度(m)1.851.852.02.02.01.851.852.02.02.0弯矩系数amb-116114-111116-1l4-1241/14111116-114弯矩(kN·m)-1.912.19-3.252.24-2.56-1.282.19-2.61.79-2.05As(mm2)156179270195210103179214157167配筋8250615081808140822082506150822061808250钢筋有效面积(mm2)201189279202229201189229157201注：为了减少施工中板面负钢筋被踩下，故采用08且配筋量适当放宽。二、次梁的设计(L3.1)(一)次梁的计算跨度及荷载(图125)图1.25计算简图1.计算跨度主梁高h一(18114)z一(18114)×6600830470mm，取主梁截面650mm×250mm。因次梁两端与主梁或柱连接，按调幅法计算，故次梁的计算跨度取净跨度：边跨中间跨2.荷载恒荷载活荷载(二)次梁正截面受弯承载力计算因跨度相差小于10，故次梁按端支座是固定的五跨等截面等跨连续梁计算(表19)。承受正弯矩的跨中截面按的T形截面计算。表19次梁正截面受弯承载力计算及配筋计算(三)次梁斜截面受剪承载力及箍筋计算由表l4可查得值。端支座剪力设计值：第一内支座左侧截面剪力设计值：第一内支座右侧截面及中间支座的两侧截面的剪力设计值：核算截面尺寸：(符合要求)设只配双肢箍筋，不配弯起钢筋设箍筋间距s=200mm，则箍筋单肢所需截面面积：拟采用。三、主梁的设计(KL3.1)(一)主梁的计算跨度及荷载(图126)图1.26计算简图按弹性理论计算，故计算跨度取柱轴线间的距离，即边跨，中间跨。活荷载恒荷载(二)主梁的内力计算按端支座是固定的三跨等截面连续梁计算，故采用实用弯矩分配法计算。(1)固端弯矩恒总(2)支座A、B的最大负弯矩及相应的支座的负弯矩计算(注：计算是为了求支座最大剪力)，见图127所示。以上求得的是B支座的支座中心处的弯矩值，由式(110)知B支座边缘截面弯矩设计值为图1.27主梁支座最大负弯矩MA、MB及相应值的计算(3)支座最大剪力支座A右截面最大剪力支座B左截面最大剪力支座B右截面最大剪力(4)主梁跨中最大正弯矩先用实用弯矩分配法算出与边跨跨中最大正弯矩相对应的支座负弯矩值，如图l23所示。图1.28与边距跨中最大正弯矩相对应的支座负弯矩的计算1)边跨跨中最大正弯矩边跨跨中最大正弯矩发生在B支座左侧第一个集中荷载处，其值为2)中间跨跨中最大正弯矩先用实用弯矩分配法算出与中间跨跨中截面最大正弯矩相对应的8支座负弯矩值，见图129。故中间跨跨中最大正弯矩：(三)主梁的正截面受弯承载力计算及配筋(见表110)图1.29与中间跨跨中最大正弯矩相对应的B支座负弯矩值的计算表110主梁正截面受弯承载力计算及配筋计算(四)主梁斜截面受剪承载力计算及配置箍筋(1)截面验算(2)不设弯起钢筋，只配箍筋，并用，现验算如下：(五)主梁附加箍筋的计算在支承次梁处只设附加箍筋，不再设置吊筋。在传递的集中力设计值中不应包括主梁自重，即用双肢箍，以n=2，由式(122)得采用在次梁每一侧边各加密3道箍筋间距50mm。四、施工图如图123所示，为了节省篇幅，图上既表达了结构平面布置和板的配筋，也用平面表示法表达了主梁和次梁的配筋，以及附加箍筋。其中主、次梁相交处A表示在主梁上于次梁截面两侧各配置加密箍筋3道。  （英文版 ） Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the < code > adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; < rule > around the party discipline, disciplinary ruler requirements, listed as "negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the" bottom line ". Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. < code > and < Regulations > revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines > and < Chinese Communist Party discipline and Punishment Regulations > column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the party's leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the < code > and < rule >, reflects the party's 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the party's eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of < the ICAC guidelines > in < in 1997 Leaders as members of the Communist Party of China clean politics certain criteria (Trial) > based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, "eight prohibition, 52 are not allowed to" hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to "clean" the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. < rule > is in 1997 < Chinese Communist Party disciplinary cases (Trial) > based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to < the criterion of a clean and honest administration > and < rule > the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations < > made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, < code > and < Regulations > revision of the basic principles of two party regulations revision work and implement the party's eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised < low political criterion > and < Regulations >, highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent < rule > and < rule >. Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that "no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules." the revision of the < code > and < rule > is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue "de", mainly refers to the party's ideals and beliefs, excellent traditional style. The revised the < code > closely linked to the "self-discipline", insisting on the positive initiative, for all members, highlight the "vital few", emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised < > Ji method separately, Ji, Ji Yan to Method, as a "negative list", emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the party's eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the < code > and < rule > modified and needs to grasp several key problems (a) < code > < code > adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the "self-discipline", removal and no direct relation to the provisions of . the second is adhere to a positive advocate, "eight prohibition" 52 are not allowed to "about the content of the" negative list moved into synchronization amendment < cases >. Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised < code > is the ruling Party since the first insists on a positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the party and the National People's solemn commitment. > < criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the < code >, a total of eight, 281 words, including lead, specifi