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第1章緒論1.1選題背景、研究目的及意義1.1.1選題背景隨著我國經(jīng)濟(jì)的快速發(fā)展,各地人口也在快速增長,為了解決人們住房難的需求,建筑行業(yè)也在快速飛快的發(fā)展,最近幾年快速發(fā)展的行業(yè)最屬房地產(chǎn)中的公寓建筑,CC公寓主要用于解決員工的住宿需求,因此公寓的電器家具更加齊全,管理運營模式也更科學(xué)更現(xiàn)代化。1.1.2研究目的及意義公寓的目的就是可以讓土地實現(xiàn)最大化的利用價值,使原本緊張的用地得到最大化利用。意義:畢業(yè)設(shè)計對學(xué)生培養(yǎng)專業(yè)知識具有重要意義。通過畢業(yè)設(shè)計,我們理解了掌握民用建筑設(shè)計的整個過程,全面利用這四年到的知識進(jìn)行分析和解決問題。這不僅是對知識的回顧,也是一種精神上的練習(xí),它不僅使我們的實踐能力增長了,而且動手能力也得到了很大的提高,增強(qiáng)了在即將進(jìn)入社會之前對工程的理解并使自信心得到提升。1.2國內(nèi)外研究現(xiàn)狀1.2.1國內(nèi)研究現(xiàn)狀由于經(jīng)濟(jì)限制、員工宿舍建設(shè)資金有限、國內(nèi)員工宿舍建設(shè)用地有限,中國大多數(shù)公寓的家庭標(biāo)準(zhǔn)都較低。在這種整體情況下,中國員工宿舍的面積指數(shù)一直偏低。人均面積指數(shù):每人6.5平方米。一般每個宿舍生活8至12人,人均居住面積不超過3平方米,缺乏人性化的設(shè)計。在以前的員工宿舍設(shè)計中。私人空間的建設(shè)很少被考慮。宿舍無員工個人空間,因此缺少了公共空間,所以多數(shù)職工宿舍住宿條件很一般。中國公寓在未來的發(fā)展趨勢是呈直線上升的,2003年出現(xiàn)公寓,到現(xiàn)在的發(fā)展成熟,這個市場僅僅用了八九年的時間,但傳統(tǒng)的公寓樓市場已經(jīng)形成強(qiáng)大的沖擊,逐漸占據(jù)公寓樓供應(yīng)量的50%。在這時期當(dāng)中,公寓的發(fā)展劃分為三個階段:2003-2004年為形成階段、2005-2009年為發(fā)展階段、2010年為成長階段。2003-2004年形成階段,深圳公寓經(jīng)歷了快速發(fā)展階段。2004年共有公寓項目10個,總供應(yīng)量約425800平方米,同年深圳寫字樓總供應(yīng)量983100平方米,公寓占43.31%,對純辦公市場的影響。這一趨勢表明,該公寓作為一種新型房產(chǎn),具有頑強(qiáng)的活力,許多房產(chǎn)立即被搶購一空,但也表明它具有開發(fā)的潛力。2005-2009年是公寓開發(fā)的階段,是市場認(rèn)可和接受的階段。本階段,每年公寓供應(yīng)相對穩(wěn)定,與2004年相比,大多數(shù)為100-20萬平方米。首先,由于區(qū)域規(guī)劃的影響,純寫字樓發(fā)展迅速,相對限制公寓發(fā)展趨勢,發(fā)展過程中也會遇到公司注冊、引發(fā)糾紛等問題,使公寓開發(fā)受到限制2010年公寓進(jìn)入成熟階段,首先,近年來勘探后,公寓具有綜合市場,產(chǎn)品達(dá)到成熟階段,其次,房地產(chǎn)市場明顯受監(jiān)管的影響,直接效益是商業(yè)公寓,投資者非常關(guān)注。2010年,全市辦公物業(yè)的45.89%為公寓供應(yīng),2004年達(dá)到高峰,2011年比例穩(wěn)定,商務(wù)公寓達(dá)到穩(wěn)定發(fā)展期。1.2.2國外研究現(xiàn)狀國外對于較為發(fā)達(dá)的國家,由于其國家的經(jīng)濟(jì)發(fā)展水平比較高,各地多為比較高的高樓大廈,高層建筑的安全性是無法保證,據(jù)統(tǒng)計每年美國有2%—5%的事故是由于人的高層墜落造成的,美國安全事故直接或間接造成的經(jīng)濟(jì)損失占其總成本的百分之八到百分之十五,作為首要考慮的安全性,國外應(yīng)多多注意。而作為發(fā)展中國家而言,因為其經(jīng)濟(jì)受限,工程進(jìn)度沒有美國的工程進(jìn)度快,因此安全性就大大的得到了提高。在建筑方便,到了21世紀(jì)而言已經(jīng)不是簡簡單單要依靠人力就能完成巨大又任務(wù)量大的房屋建設(shè)了,現(xiàn)在需要更多的人工智能運用到房屋建筑中來,作為發(fā)達(dá)國家的美國而言,其擁有的智能器械,可以在擁有少數(shù)人力資源的情況下,可以完成很多建筑基礎(chǔ)的建設(shè),比如地基開挖和埋深計算,都可以通過直接輸入數(shù)據(jù)對完成任務(wù)指令。在未來,更是需要越來越多的智能科技技術(shù)深入建筑用地,可以減少很多的人力物力的資源浪費,減少建筑的預(yù)計完成時間,與對來的發(fā)展至關(guān)重要,因此我國特別需要學(xué)習(xí)發(fā)展自己技術(shù),達(dá)到世界水平,才能使國家更加強(qiáng)大1.3研究內(nèi)容與研究方法1.3.1研究內(nèi)容CC公寓建筑總面積約5000m2,從地上到頂層為5層建筑,確定建筑設(shè)計方案,繪制結(jié)構(gòu)平面圖,剖面圖等,繪制混凝土建筑施工圖。確定整體結(jié)構(gòu)方案對5層到首層的承載和剪切力的大小。計算特殊部位結(jié)構(gòu)方案以及確定其他重要的房屋建筑構(gòu)件的設(shè)計方案。1.3.2研究方法對建筑設(shè)計方案進(jìn)行說明,然后確定結(jié)構(gòu)方案,最后繪制結(jié)構(gòu)施工圖。整體布局應(yīng)減少無用空間的,提高空間利用率,選取其中一榀框架進(jìn)行簡要計算。整體風(fēng)格符合現(xiàn)代人審美觀。
第2章建筑設(shè)計2.1工程概況本工程名稱某職工公寓??偨ㄖ娣e4914.0m2,本職工公寓縱向長為58.5m,橫向?qū)?6.8m。主體結(jié)構(gòu)一共5層,首層的層高為4.2m,其余各層的均為3.6m?;緰|南風(fēng)風(fēng)壓為0.4kN/m2;平均雪壓為0.35kN/m2;地質(zhì)情況:地面較為平坦,地下水標(biāo)高為3.8m;容許承載力值、地層主要物理力學(xué)性質(zhì)指標(biāo)和物理狀態(tài)和見表2-1:表2-1土層情況序號巖土分類土層土層厚度(m)地基土承載力(kPa)1雜填土碎石、磚塊、粘土等組成,松散0.52粉質(zhì)土黃褐色,濕,可塑1.61403中、粗砂黃褐色,石英長石質(zhì),梢濕,中密2.71804圓礫黃褐色,石英、長石質(zhì),混粒構(gòu),濕,中密520職工公寓抗震設(shè)防烈度為8度,其地震加速度為0.2g,建筑場地類別為Ⅲ類。工程結(jié)構(gòu)設(shè)計基準(zhǔn)期為50年。2.2平面及立面設(shè)計2.2.1平面設(shè)計平面布局應(yīng)遵循簡單對稱的原則,特別是房間布局應(yīng)具有更加突出的對稱性。所以公寓結(jié)構(gòu)的平面形狀是矩形的平面。公寓設(shè)有衛(wèi)生間,樓梯和住房。員工住房為主要部分,每層設(shè)有足夠的房間用來休息,每層可為員工提供3間活動室和公共男女廁所的基本需求房間,平面采用這種方法布局,使用更簡單方便。一樓設(shè)有門廳,其中門廳可以快速尋找房間,既方便了員工的進(jìn)出,還節(jié)省了成本。2.2.2立面設(shè)計立面設(shè)計的材料方面:水磨石灰。首先設(shè)置女兒墻,用女兒墻排水更簡單方便,其高度設(shè)置為1.5m,厚度設(shè)為240mm,d頂層屋面排水坡度設(shè)為2%。2.2.3房間布置住戶室的開間為4.5m,進(jìn)深7.2m。其他設(shè)置的住戶室、樓梯室、活動室、首層接待室等小開間房間的開間均為4.5m,進(jìn)深7.2m。2.3本章小結(jié)本章對CC職工公寓的基本情況做出了總結(jié),包跨房屋大小,地面圖層情況做出來了說明。第3章結(jié)構(gòu)方案確定及荷載計算3.1結(jié)構(gòu)方案選擇職工公寓選用框架結(jié)構(gòu),基礎(chǔ)使用柱下獨立基礎(chǔ)。結(jié)構(gòu)縱向為4.5m的柱距,橫向柱距為7.2m和2.4m兩種。 3.2結(jié)構(gòu)基本尺寸的初步確定3.2.1板截面尺寸初步估計樓面板厚度:h=4500/40=112.5mm,取150mm(l為跨度最大的板的短邊尺寸),最大板的跨度為4500mm×7200mm。3.2.2梁截面尺寸及混凝土強(qiáng)度等級的選取本設(shè)計的縱橫向框架梁的跨度有7.2m,4.5m,2.4m三種,次梁高按(l為梁的跨度)估算,次梁寬按(h為梁高)估算。則主梁(縱梁)高:=()=()×4500=300~450mm主梁(縱梁)寬:=()=100~225mm故主梁(縱梁)截面尺寸初步取為×=150mm×300mm。主梁(橫梁)截面尺寸的選取:主梁(橫梁)高:=()=()×7200=480~720mm,取600mm。主梁(橫梁)寬:=()=()×480~720mm=160~360mm,取300mm故主梁(橫梁)截面尺寸選取×=300×600mm。主梁截面尺寸的選取:主梁(過道)高:=()=()×2400=160~240mm,取200mm。主梁(過道)寬:=()=()×500=53~120mm,取100mm故主梁(過道)截面尺寸選取×=100×200mm。表3-1梁截面尺寸(mm)及混凝土強(qiáng)度等級表層次混凝土強(qiáng)度橫梁b×h(mm)縱梁縱梁AB跨BC跨CD跨1~5C30300×600100×200300×600150×300150×3003.2.3框架柱截面尺寸及混凝土的選取柱截面尺寸可以由N=式中:N—柱的軸壓比設(shè)計值F—按簡支狀態(tài)計算的柱的負(fù)載面積—折算在單位建筑面積上的重力荷載代表值—考慮地震作用組合后柱軸壓力增大系數(shù),邊柱取1.3,不等跨內(nèi)柱取1.25[7]。n—驗算截面以上樓層層數(shù)—柱的截面面積—混凝土軸心抗壓強(qiáng)度設(shè)計值—框架柱軸壓比限值,二級抗震取0.75職工公寓高度19.55m,軸壓比限制=0.85,各層的重力荷載代表值近似取12kN/㎡。對于混凝土的選用,一到五層均選用C30混凝土。由職工公寓平面圖知,中柱的負(fù)載面積為:4.8m×4.5m。角柱邊柱的負(fù)載面積為:2.25m×3.6m。第一層柱的截面面積:邊柱:=58909.09mm2中柱:=151048.95mm2取正方形柱,邊柱截面尺寸341mm×341mm,中柱截面尺寸433mm×433mm。第二層柱的截面面積:邊柱:=47127.27mm2中柱:=120839.16mm2取正方形柱,邊柱截面尺寸204mm×204mm,中柱截面尺寸327mm×327mm。綜合考慮其它因素,柱截面尺寸取值為:600mm×600mm。3.3框架結(jié)構(gòu)計算簡圖圖3.1結(jié)構(gòu)平面布置圖圖3.2框架結(jié)構(gòu)簡圖(單位:m)基礎(chǔ)采用柱下獨立基礎(chǔ),結(jié)構(gòu)計算簡圖如圖3.1所示,底層柱的高度為5.15m,2到5層柱高均為3.6m。3.4荷載與荷載匯集3.4.1荷載計算屋面及樓面永久荷載的標(biāo)準(zhǔn)值:屋面(不上人):30厚細(xì)石混凝土保護(hù)層22×0.03=0.66kN/㎡三氈四油防水層0.4kN/㎡20厚1:3水泥沙漿找平層0.02×20=0.4kN/㎡150厚水泥蛭石保溫層0.15×5=0.75kN/㎡20厚1:3水泥沙漿找平層0.02×20=0.4kN/㎡100厚鋼筋混凝土樓板0.1×25=2.5kN/㎡V型輕鋼龍骨架吊頂0.25kN/㎡合計5.36kN/㎡1~4層樓面:陶瓷磚地面0.55kN/㎡20厚干硬性水泥沙漿20×0.02=0.4kN/㎡100厚鋼筋混凝土樓面板25×0.1=2.5kN/㎡V型輕鋼龍骨架吊頂0.25kN/㎡合計3.70kN/㎡屋面及樓面可變荷載的標(biāo)準(zhǔn)值:不上人屋面均布活荷載標(biāo)準(zhǔn)值0.5kN/㎡樓面活荷載標(biāo)準(zhǔn)值2.0kN/㎡屋面雪荷載標(biāo)準(zhǔn)值0.35kN/㎡表3-2梁、柱重力荷載標(biāo)準(zhǔn)值樓層構(gòu)件b(m)h(m)γ(kN/m3)βg(kN/m)li(m)nGi(kN)ΣGi(kN)1框架橫梁0.300.60251.054.737.2028952.561246.61走道梁(BC跨)0.100.20251.050.532.41417.64框架縱梁0.150.30251.051.184.5052276.41框架柱0.600.60251.109.905.15562855.162855.162~5框架橫梁0.300.60251.054.737.228952.561246.61走道梁(BC跨)0.100.20251.050.532.401417.64框架縱梁0.150.30251.051.184.5052276.41框架柱0.600.60251.109.903.60561995.841995.84注:1)表中為考慮梁柱的粉刷層重力荷載而對其重力荷載的增大系數(shù),表示單位長度構(gòu)件重力荷載;n為構(gòu)件數(shù)量。2)梁長度取凈長;柱高度取層高(底層柱除外)。3),的單位為m,的單位為kN/m3,的單位kN/m。外墻重力荷載單位面積:0.02×17+15×0.24+0.5=4.44kN/m2,內(nèi)墻重力荷載單位面積:17×0.02×2+0.24×15=4.28kN/m2,木門:0.2kN/㎡鋁合金窗:0.4kN/㎡3.4.2質(zhì)點重力荷載代表值表3-3各層重力荷載標(biāo)準(zhǔn)值計算(單位:kN)樓層樓屋面
恒載樓屋面
活載/2外墻重力荷載/2內(nèi)墻重力荷載/2門重力荷載窗重力荷載梁重力
荷載柱重力
荷載/2合計1下半部分001339.792488.8412.92001427.585269.13上半部分3636.361375.921339.792488.8408.101246.611427.5811522.362下半部分001158.442027.3110.6100997.924194.28上半部分3636.361375.921158.442027.3108.421246.61997.9210450.983下半部分001158.442027.3110.6100997.924194.28上半部分3636.361375.921158.442027.3108.421246.61997.9210450.984下半部分001158.442027.3110.6100997.924194.28上半部分3636.361375.921158.442027.3108.421246.61997.9210450.985下半部分001158.442027.3110.6100997.924194.28上半部分5267.81687.961158.442027.3108.421246.61997.9211394.47頂層女兒墻001002.99000001002.99圖3.2各質(zhì)點的重力荷載代表值3.4.3框架側(cè)移剛度計算表3-3框架梁線剛度ib計算類別Ec(N/mm2)b×h
(mm×mm)I0(mm4)l(mm)EcI?/l(N·mm)1.5EcI0/l
(N·mm)?2EcI0/l
(N·mm)邊跨3.0×104300×6005.4×10972002.25×10103.375×10104.5×10103.0×104150×3000.3375×10945000.225×10100.3375×10100.45×1010中間跨3.0×104100×2000.067×10924000.084×10100.126×10100.168×1010注:1)的單位為N/mm2,、的單位為mm42)、、的單位為mm,的單位為N·mm表3-4框架柱線剛度ic計算層次Ec(N/mm2)b×h
(mm×mm)Ic(mm4)hc(mm)EcIc/hc
(N·mm)13.0×104600×6001.080×101051506.291×10102~53.0×104600×6001.080×101036009.000×1010注:1)的單位為N/mm2,、的單位為mm42)、、的單位為mm,的單位為N·mm表3-5中框架柱側(cè)移剛度D值(N/mm)層次邊柱(24根)B、C軸柱(24根)∑DiαcDi1αcDi22~50.5000.20033333.330.520.20634333.331623999.1210.7150.55931822.060.740.45325787.821382637.12表3-6邊框架柱側(cè)移剛度D值(N/mm)層次邊柱(4根)B、C軸柱(4根)∑DiαcDi1αcDi22~50.3750.1584388.890.3890.1634527.7835666.6810.5360.4093880.510.5560.4133918.4631195.88注:的單位為N·mm,柱的側(cè)移剛度按公式=,其中:底層:,一般層:,表3-7橫向框架層間側(cè)移剛度(N/mm)層次12345∑Di14138331659665.81659665.81659665.81659665.8由上表可見,==0.85>0.7,則該框架為規(guī)則框架。3.5本章小結(jié):本章對CC大廈職工公寓的梁和柱進(jìn)行了計算,考慮到結(jié)構(gòu)的穩(wěn)定性,其中梁主要選取了主梁結(jié)構(gòu),梁的大小也比正常尺寸大了很多因此梁的結(jié)構(gòu)安全性得到了保障。其次柱子的選取也是根據(jù)計算結(jié)果進(jìn)行了選取,保證多柱子保證結(jié)構(gòu)穩(wěn)定性,總的安全性得到了很大保障。第4章橫向水平荷載作用下框架結(jié)構(gòu)內(nèi)力分析4.1橫向水平地震作用下框架結(jié)構(gòu)內(nèi)力計算4.1.1橫向自振周期計算結(jié)構(gòu)頂點的假想側(cè)移計算結(jié)果見表3-1。表4-1結(jié)構(gòu)頂點的假想側(cè)移計算Gi(kN)VGi(kN)ΣDi(N/mm)Δui(mm)ui(mm)512397.4612397.461659665.87.5133.8414645.2627042.721659665.816.3126.3314645.2641687.981659665.825.1110.0214645.2656333.241659665.833.984.9115716.6472049.88141383351.051.0質(zhì)量和剛度沿高度分布相對均勻的框架,其基本自振周期按下式計算:式中:計算結(jié)構(gòu)基本自振周期用的結(jié)構(gòu)頂點假想位移(m);結(jié)構(gòu)基本自振周期考慮非承重磚墻影響的折減系數(shù),框架結(jié)構(gòu)取0.6~0.7。計算基本周期,取=0.7,則:==0.44s4.1.2水平地震作用及樓層地震剪力計算結(jié)構(gòu)高度為19.55m,質(zhì)量和剛度分布比較均勻,變形以剪切變形為主,可采用底部剪切法計算水平地震作用。結(jié)構(gòu)的整體水平地震作用參考值,即=0.75×72049.82=61242.34kN8度設(shè)防,場地類別為III類,地震分組為第一組,則查表可得特征周期=0.45s,式中:地震影響系數(shù)曲線的阻尼調(diào)整系數(shù),取1.0;地震影響系數(shù)最大值,由《建筑抗震設(shè)計規(guī)范》查得度多遇地震時取0.16。則=0.163=9982.5kN因1.4=1.40.45=0.63s>=0.44s,故不需考慮頂部附加水平地震作用,頂部附加地震作用系數(shù):=0.08+0.01,=0.080.44+0.01=0.0452,==0.04529982.5=451.2kN各質(zhì)點的水平地震作用按式計算。式中:結(jié)構(gòu)水平地震作用標(biāo)準(zhǔn)值;相應(yīng)于結(jié)構(gòu)基本自振周期的水平地震影響系數(shù);,分別為集中于質(zhì)點i,j的重力荷載代表值;,分別為質(zhì)點i,j的計算高度;頂部附加水平地震作用系數(shù);頂部附加水平地震作用。將上述的代入可得,=9982.5,計算結(jié)果見表4-2。表4-2各質(zhì)點橫向水平地震作用及樓層地震剪力計算樓層Hi(m)Gi(kN)GiHi(kN·m)Fi(kN)Vi(kN)519.5512397.40242369.170.2802785.12785.1415.9514645.26233591.900.2702695.285480.38312.3514645.26180868.960.2092086.347566.7228.7514645.26128146.030.1481477.419044.1315.1515716.6480940.700.093928.379982.5圖4-1橫向水平地震作用及樓層地震剪力4.1.3水平地震作用的位移驗算水平地震作用下框架結(jié)構(gòu)的層間位移和頂點位移的計算過程見表4-3,表中還計算了各層的層間彈性位移角。表4-3橫向水平地震作用下的位移驗算樓層Vi(kN)ΣDi(N/mm)Δui(mm)ui(mm)hi(mm)52785.11659665.81.6821.95360045480.381659665.83.3020.27360037566.721659665.84.5616.97360029044.131659665.85.3512.41360019982.514138337.067.065150由上表可見,最大層間彈性位移角發(fā)生在第2層,其值為<(滿足要求)。4.1.4水平地震作用框架內(nèi)力計算以圖2.1中⑤軸線橫向框架內(nèi)力計算為例??蚣苤思袅皬澗胤謩e按,,式中:為i層j柱的剛度,h為層高,各柱反彎點高度比按式確定,其中由倒三角分布水平荷載下各柱標(biāo)準(zhǔn)反彎點高度比查得,底層柱需考慮修正值,第2層柱需考慮修正值,其余柱均無考慮修正值。為第i層j柱的剪力。表4-4各層柱端彎矩及剪力計算層次54321hi(m)3.63.63.63.65.15Vi(kN)2785.15480.387566.729044.139982.2∑Dij(N/mm)16596661659666165966616596661413833邊柱Di133333.3333333.3333333.3333333.3331822.06Vi155.94110.07151.97181.65224.670.5000.5000.5000.5000.715y0.2500.3500.4000.6000.67550.34138.69218.84392.35781.03151.03257.56328.26261.57376.05B、C軸柱Di14250042500425004250028293Vi171.32140.34193.77231.60199.760.5200.5200.5200.5200.740y0.3000.3870.4500.5500.64566.76176.83279.02491.91692.34190.00328.39418.53341.84336.40表4-5梁端彎矩、剪力及柱軸力計算樓層54321邊梁(A、B軸間)151.03307.9466.95480.41768.4182.4379.34571.55596.03795.18l7.27.27.27.27.246.3195.45144.24149.51217.16中橫梁(B、C軸間)7.615.823.8124.8333.137.615.823.8124.8333.13l2.42.42.42.42.46.3313.1719.8420.6927.61柱軸力邊柱(A軸)-46.31-141.76-286-435.51-652.67中柱(B軸)-6.33-19.5-39.3460.0.-87.64圖4.2地震作用線框架彎矩圖圖4.3梁端剪力圖及柱軸力圖4.2橫向風(fēng)荷載作用下框架結(jié)構(gòu)內(nèi)力和側(cè)移計算4.2.1風(fēng)荷載標(biāo)準(zhǔn)值5層房屋總高為19.55m,地面粗糙類別為C,基本風(fēng)壓kN/m2,垂直于建筑物表面的風(fēng)荷載標(biāo)準(zhǔn)值按公式計算:=式中:為風(fēng)載體形系數(shù)=0.8=-0.5為風(fēng)壓高度變化系數(shù),為高度Z處的風(fēng)振系數(shù),因為房屋高度為19.55m<30m,H/B=19.55/26.4=0.74<1.5,則不考慮風(fēng)振系數(shù)的影響,=1.0。取圖中⑥軸橫向框架,其負(fù)載寬度為4.5m,沿房屋高度的分布風(fēng)荷載標(biāo)準(zhǔn)值:=4.5×0.4×=1.8表4-6沿房屋高度分布風(fēng)荷載標(biāo)準(zhǔn)值計算樓層Hi(m)ωk(kN/m2)q1(z)(kN/m)q2(z)(kN/m)Fi(kN)519.551.000.731.000.3801.0510.6576.07415.950.820.671.000.3480.9650.6035.70312.350.630.651.000.3380.9360.5855.528.750.450.651.000.3380.9360.5855.4815.150.260.651.000.3380.9360.5853.92第3層的集中荷載的計算過程如下:F3=(0.936+0.936+0.585+0.585)×3.6×1/2+[(0.965-0.936)+(0.603-0.0.582)]×3.6×1/2×1/3+[(0.936-0.936)+(0.585-0.585)]×3.6×1/2×2/3=5.503kN4.2.2風(fēng)荷載作用下的水平位移驗算根據(jù)上圖所示的水平荷載,由式計算層間剪力,然后依據(jù)表求出5軸線的層間側(cè)移剛度,在按式式中:為第層的側(cè)移剛度;為第層層間剪力計算各層的側(cè)移剛度和絕對剛度,計算過程見下表3-7。表4-7風(fēng)荷載作用下的水平位移驗算樓層Fi(kN)Vi(kN)ΣDi(N/mm)Δui(mm)ui(mm)hi(mm)56.076.071659665.80.0040.054360045.7011.771659665.80.0070.050360035.5017.271659665.80.0100.043360025.4822.751659665.80.0140.033360013.9226.6714138330.0190.0195150由上表知,風(fēng)荷載作用下框架的最大層間位移角為,滿足規(guī)范要求。4.3風(fēng)荷載作用下框架結(jié)構(gòu)內(nèi)力計算表4-8各層柱端彎矩及剪力計算層次54321hi(m)3.63.63.63.65.15Vi(kN)6.0711.7717.2722.7526.67∑Dij(N/mm)16596661659666165966616596661413833邊柱Di133333.3333333.3333333.3333333.3331822.06Vi10.120.240.350.460.600.5000.5000.5000.5000.715y0.2500.3500.4000.6000.6750.110.300.500.992.090.330.550.750.661.00B、C軸柱Di14250042500425004250028293Vi10.160.300.440.580.530.5200.5200.5200.5200.740y0.3000.3870.4500.5500.6450.170.420.721.151.770.390.670.880.940.98注:1)的單位為m,的單位為kN,和的單位為N/mm2)表中單位為kN·m,單位為kN。表4-9梁端彎矩、剪力及柱軸力計算樓層54321邊梁(A、B軸間)0.330.661.051.161.990.3740.8061.2481.5942.045l7.27.27.27.27.20.0980.2040.3190.3830.560中橫梁(B、C軸間)0.0160.0340.0520.0660.0850.0160.0340.0520.0660.085l2.42.42.42.42.40.0130.0280.0430.0550.071柱軸力邊柱(A軸)0.0980.3020.6211.0041.564中柱(B軸)0.0130.0410.0840.150.235注:1)柱軸力中的負(fù)號表示拉力2)標(biāo)中單位為kN·m,單位為kN,單位為kN,單位為m。圖4.4風(fēng)荷載作用下框架彎矩圖圖4.5剪力和軸力圖(單位:kN)4.4本章小結(jié):在日常生活中,很多地區(qū)的房屋倒塌是因為地下地震的橫向剪切力影響了房屋的結(jié)構(gòu)安全,因此首要就要考慮地震荷載作用對房屋的影響,本章就系統(tǒng)的考慮了地震橫向縱剪切力、內(nèi)力和位移計算。還考慮了風(fēng)向荷載對建筑的剪切、內(nèi)力和位移。第5章豎向荷載作用下的內(nèi)力計算5.1橫向框架內(nèi)力計算5.1.1計算單元?、掭S線橫向框架內(nèi)力計算,計算單位寬度為4.5m,如圖5.1所示。圖5.1橫向框架計算單元(單位:mm)5.1.2荷載計算1.恒載計算:圖5.2各層梁上作用的恒載,、表示梁的重量,用于載荷形式的分布。5樓的=4.73kN/m、=0.53kN/m、、、分別為從房間、人行道板到梁的梯形和三角形荷載,由圖4.1所示,幾何可得:=5.36×7.2=38.59kN/m;=5.36×2.4=12.864kN/m、、、分別為邊縱梁,中縱梁傳給柱的恒載,它包括梁自重,樓板重和女兒墻等的重力荷載,計算如下:=[(4.5×2.25×1/2)+(2.7+7.2)×1/2×2.25]×5.36+1.18×4.5+4.73×7.2/2+4.44×1.5×4.5=139.14kN=[4.5×2.25×1/2+(2.7+7.2)/2×2.25+(2.1+4.5)/2×1.2+2.4×1.2×0.5]×5.36+1.18×4.5+4.73×7.2/2+2.4/2×0.53=138.75kN均布荷載產(chǎn)生的彎矩:A端:=+=+=159.63kN·mB端:=+=+=4.113kN·m集中力矩:==139.14×=20.871kN·m對1-4層,包括梁自重和其上橫墻自重,為均布荷載,其它荷載計算方法同上,結(jié)果為:=4.73+4.28×(3.6-0.6)=17.57kN/m=0.53kN/m=3.7×4.5=16.65kN/m=3.7×2.4=8.88kN/m=[(4.5×2.25×1/2)+(2.7+7.2)×1/2×2.25)]×3.7+1.18×4.5+4.73×7.2/2+4.44×[(4.5-0.6)×(3.6-0.6)-2.25×2.25×2]+0.4×2.25×2.25×2=93.321kN=[4.5×2.25×1/2+(2.7+7.2)/2×2.25+(2.1+4.5)/2×1.2+2.4×1.2×0.5]×3.7+1.18×4.5+4.73×7.2/2+4.28×(4.5-0.6)×(3.6-0.6)=152.33kN均布荷載產(chǎn)生的彎矩:A端:=+=+=135.96kN·mB端:=+=+=2.918kN·m集中力矩:==93.321×=13.998kN·m2.活荷載計算活荷載作用在各層框架梁上的荷載分布如圖4.3所示:圖5.3各層梁上作用的荷載(單位:mm)對于第5層:=4.5×0.5=2.25kN/m,=2.4×0.5=1.2kN/m,=[((4.5×2.25×1/2)+(2.7+7.2)×1/2×2.25]×0.5=8.1kN=[4.5×2.25×1/2+(2.7+7.2)/2×2.25+(2.1+4.5)/2×1.2+2.4×1.2×0.5]×0.5=10.8kN均布荷載產(chǎn)生的彎矩:A端:===8.116kN·mB端:===0.36kN·m集中力矩:==8.1×=1.215kN·m同理在雪荷載作用下:=1.575kN/m,=0.84kN·m,=5.56kN,=7.56kN,A端:===5.68kN·mB端:===0.252kN·m集中力矩:=0.834kN·m對1-4層:=4.5×2=9kN/m=2.4×2=4.8kN/m=[(4.5×2.25×1/2)+(2.7+7.2)×1/2×2.25)]×2=32.4kN=[4.5×2.25×1/2+(2.7+7.2)/2×2.25+(2.1+4.5)/2×1.2+2.4×1.2×0.5]×2=43.2kN均布荷載產(chǎn)生的彎矩:A端:===32.47kN·mB端:===1.44kN·m集中力矩:==32.4×=4.86kN·m將以上結(jié)果進(jìn)行匯總,見表5-1。表5-1橫向框架荷載匯總表樓層
(kN/m)
(kN/m)
(kN/m)
(kN/m)P1
(kN)P2
(kN)M1
(kN·m)恒載1~417.570.5316.658.8893.32152.3313.99854.730.5338.5912.864139.14138.7520.871活載1~40094.832.443.24.865002.25(1.575)1.2(0.84)8.12(5.56)10.80(7.56)1.215(0.834)注:上表括號中的值為屋面雪荷載,值的單位為kN/,的單位kN,的單位kN·m。3.內(nèi)力計算梁端,柱端彎矩均采用彎矩二次分配法計算。彎矩計算過程如圖5.4、5.5所示。上柱下柱右梁左梁上柱下柱右梁左梁上柱下柱右梁右梁下柱上柱0.6670.3330.3290.6850.0120.012/0.6850.3290.3330.66720.871-159.634.99-4.1134.113-159.63159.63-20.87192.5546.21-51.17-106.53-1.871.87106.5351.17-46.21-92.5524.39-25.5823.10-26.410.94-0.9426.41-23.1025.58-24.390.790.400.781.620.03-0.03-1.62-0.78-0.40-0.79117.74-138.61132.35-131.31-5.025.02131.31-132.35138.61-117.740.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.40013.998-135.96135.96-2.922.92-135.96135.96-13.99848.7848.7824.39-26.48-52.82-52.82-0.930.9352.8252.8226.47-24.39-48.78-48.7846.2824.39-13.2412.20-53.26-26.410.47-0.4753.2626.41-12.2013.24-24.39-46.28-22.97-22.97-11.4913.3326.6026.600.47-0.47-26.60-26.60-13.3311.4922.9722.9772.0950.20-136.29135.02-79.48-52.62-2.912.9179.4852.62-135.02136.29-50.20-72.090.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.40013.998-135.96135.96-2.922.92-135.96135.96-13.99848.7848.7824.39-26.47-52.82-52.82-0.930.9352.8252.8226.47-24.39-48.78-48.7824.3924.39-13.2412.20-26.41-26.530.47-0.4726.4126.53-12.2013.24-24.39-24.39-14.22-14.22-7.118.0215.9915.990.28-0.28-15.99-15.99-8.017.1114.2214.2258.9658.96-131.91129.70-63.23-63.36-3.103.1063.2463.36-129.70131.91-58.96-58.960.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.40013.998-135.96135.96-2.292.29-135.96135.96-13.99848.7848.7824.39-26.60-53.07-53.07-0.940.9453.0753.0726.60-24.39-48.78-48.7824.3927.75-13.3012.20-26.41-30.140.47-0.4726.4121.05-12.2013.30-27.75-24.39-15.54-15.54-7.778.7317.4217.420.31-0.24-13.81-13.81-6.927.7715.5415.5457.6461.00-132.64130.29-62.05-65.79-2.452.5165.6660.31-128.48132.64-61.00-57.640.4550.3180.2270.2250.4510.3150.0080.0080.3150.4510.2250.2270.3180.45513.998-135.96135.96-2.292.29-135.96135.96-13.99855.4938.7827.69-30.08-60.29-42.11-1.071.0742.1160.2930.08-27.69-38.78-55.4924.39-15.0413.84-26.530.54-0.5426.53-13.8415.04-24.39-4.26-2.97-2.122.735.483.830.10-0.10-3.83-5.48-2.732.122.974.2675.6335.81-125.44122.46-81.34-38.28-2.722.7264.8154.81-122.46125.44-35.81-75.6317.90-19.1427.40-17.90ABCD圖5.4恒載作用下橫向框架彎矩的二次分配(M的單位:kN·m)上柱下柱右梁左梁上柱下柱右梁左梁上柱下柱右梁右梁下柱上柱0.6670.3330.3290.6580.0120.012/0.6580.3290.3330.6672.05-13.79613.796-0.6120.612-13.79613.796-2.057.833.91-4.34-8.68-0.160.168.684.34-3.91-7.845.52-2.171.96-6.160.08-0.086.16-1.962.17-5.52-2.24-1.121.362.710.05-0.05-2.71-1.361.122.2411.12-13.1712.77-12.12-0.640.6412.12-12.7713.17-11.120.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.4004.86-32.4732.47-1.441.44-32.4732.47-4.8611.0411.045.52-6.17-12.32-12.32-0.220.2212.3212.326.17-5.52-11.04-11.043.925.52-3.092.76-4.34-6.160.11-0.114.346.16-2.763.09-5.52-3.92-2.54-2.54-1.271.523.033.030.05-0.05-3.03-3.03-1.521.272.542.5412.4214.03-31.3130.57-13.63-15.45-1.491.4913.6315.45-30.5731.31-14.03-12.420.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.4004.86-32.4732.47-1.441.44-32.4732.47-4.8611.0411.045.52-6.17-12.32-12.32-0.220.2212.3212.326.17-5.52-11.04-11.045.525.52-3.092.76-6.16-6.160.11-0.116.166.16-2.763.09-5.52-5.52-3.18-3.18-1.591.883.753.750.07-0.07-3.75-3.75-1.881.593.183.1813.3813.38-31.6330.94-14.73-14.73-1.481.4814.7314.73-30.9431.63-13.38-13.380.4000.4000.2000.1990.3970.3970.0070.0070.3970.3970.1990.2000.4000.4004.86-32.4732.47-1.441.44-32.4732.47-4.8611.0411.045.52-6.17-12.32-12.32-0.220.2212.3212.326.17-5.52-11.04-11.045.526.28-3.092.76-6.16-7.000.11-0.116.164.89-2.763.09-6.28-5.52-3.49-3.49-1.742.054.084.080.07-0.06-3.25-3.25-1.631.743.493.4913.0813.84-31.7831.10-14.39-15.23-1.481.4915.2313.96-30.6831.78-13.84-13.080.4550.3180.2270.2250.4510.3150.0080.0080.3150.4510.2250.2270.3180.4554.86-32.4732.47-1.441.44-32.4732.47-4.8612.568.786.27-6.98-13.99-9.77-0.250.259.7713.996.98-6.27-8.78-12.565.52-3.493.13-6.160.13-0.136.16-3.133.49-5.52-0.92-0.65-0.460.651.310.910.02-0.02-0.91-1.31-0.650.460.650.9217.168.13-30.1529.27-18.85-8.86-1.541.5415.0212.69-29.2730.15-8.13-17.164.07-4.436.34-4.07ABFG圖5.5活載作用下橫向框架彎矩的二次分配(M的單位:kN·m)表5-2恒載作用下梁端剪力計算(單位:kN)樓
層荷載引起的剪力彎矩引起的剪力總剪力AB跨BC跨CD跨AB跨BC跨CD跨AB跨BC跨CD跨VA=VBVB=VCVC=VDVA=-VBVB=-VCVC=-VDVLVRVLVRVLVR5112.548.35112.54-0.870.000.87111.67113.418.358.35113.41111.674104.465.96104.46-0.180.000.18104.28104.645.965.96104.64104.283104.465.96104.46-0.310.000.31104.15104.775.965.96104.77104.152104.465.96104.46-0.330.000.33104.13104.795.965.96104.79104.131104.465.96104.46-0.410.000.41104.05104.875.965.96104.87104.05表5-3活載作用下梁端剪力計算(單位:kN)樓
層荷載引起的剪力彎矩引起的剪力總剪力AB跨BC跨CD跨AB跨BC跨CD跨AB跨BC跨CD跨VA=VBVB=VCVC=VDVA=-VBVB=-VCVC=-VDVLVRVLVRVLVR59.471.229.47-0.060.000.069.419.531.221.229.539.41422.282.8822.28-0.100.000.1022.1822.382.882.8822.3822.18322.282.8822.28-0.100.000.1022.1822.382.882.8822.3822.18222.282.8822.28-0.090.000.0922.1922.372.882.8822.3722.19122.282.8822.28-0.120.000.1222.1622.402.882.8822.4022.16表5-4恒載和活載作用下柱軸力計算(單位:kN)樓層54321恒載作用下A柱250.81480.81711.3941.811171.58283.21513.21743.7974.211217.93B柱260.51557.84853.31148.781444.34292.91590.24885.71181.181490.69C柱260.51557.84853.31148.781444.34292.91590.24885.71181.181490.69D柱250.81480.81711.3941.811171.58283.21513.21743.7974.211217.93活載作用下A柱22.7677.34131.92186.51241.07B柱29.1197.57166.03234.48302.96C柱29.1197.57166.03234.48302.96D柱22.7677.34131.92186.51241.075.2橫向框架內(nèi)力組合此公寓有4種框架梁內(nèi)力組合,即,和。各層梁的內(nèi)力組合結(jié)果見表4-5。表中,兩列中的梁端彎矩M為調(diào)幅后的彎矩(調(diào)幅系數(shù)取0.8)。表中,,分別為AB跨、BC跨和CD跨間最大正彎矩,以下部受拉為正,以向上為正。表中V以繞順時針為正,為相應(yīng)于本層柱凈高上下端的剪力設(shè)計值。表5-5框架梁內(nèi)力組合表層次截面位置內(nèi)力SGkSQkSωkSEk1.2SGk+1.26(SQk+Sωk)γRE[1.2(SGk+0.5SQk)+1.3SEk]1.35SGk
+SQk1.2SGk
+1.4SQk左風(fēng)右風(fēng)左震右震一層AM-125.44-30.151.99768.40-186.01-191.02622.73-875.65-199.49-192.74378.48V104.0522.160.56217.16152.08153.49-108.11315.35162.63155.88B左M122.4629.272.05795.18181.26186.41-651.92898.69194.59187.93V104.8722.400.56217.16154.77153.36316.19-130.49163.97157.20B右M-2.72-1.540.0933.13-5.10-5.3129.16-35.44-5.21-5.4241.43V5.962.880.0727.6110.6910.87-20.2633.5810.9311.18C左M2.721.540.0933.135.095.32-29.1635.445.215.42V5.962.880.0727.6110.8710.6933.58-20.2610.9311.18跨間MAB38.4738.2137.60-157.3546.94141.68205.23-101.5990.1599.66MBC-0.170.31-0.383.560.66-0.29-3.493.460.080.23三層AM-131.91-31.631.05466.95-196.82-199.47322.32-588.23-209.71-202.57316.2V104.1522.180.32144.24152.52153.33-36.92244.35162.78156.03B左M129.7030.941.25571.55193.05196.20-426.61687.91206.04198.96V104.7722.380.32144.24154.32153.52`-84.83-130.18163.82157.06B右M-3.10-1.480.0523.81-5.52-5.6519.76-26.67-5.67-5.7933.39V5.962.880.0419.8410.7310.83-12.6826.0010.9311.18C左M3.101.480.0523.815.525.65-19.7626.675.675.79V5.962.880.0419.8410.8310.7326.00-12.6810.9311.18跨間MAB36.087.540.52132.6052.1453.44-93.43165.1556.2453.84MBC1.120.57-0.094.752.171.95-3.375.902.082.14五層AM-138.61-13.170.33151.03-182.51-183.3416.58-277.93-200.29-184.77241.39V111.679.410.1046.31145.74145.9859.59149.89160.16147.18B左M132.3512.770.37182.40174.44175.38-52.98302.70191.44176.70V113.419.530.1046.31148.22147.98151.51-135.90162.63149.43B右M-5.02-0.640.027.60-6.81-6.852.60-12.22-7.42-6.9223.73V8.351.220.016.3311.5411.571.8914.2412.4911.73C左M5.020.640.027.606.816.86-2.6012.227.426.92V8.351.220.016.3311.5711.5414.241.8912.4911.73跨間MAB27.641.750.4346.7534.8435.92-19.9171.2539.0735.62MBC-0.950.26-0.16-0.50-0.62-1.01-0.25-1.23-1.02-0.78表5-6橫向框架A柱彎矩和軸力組合層次截面位置內(nèi)力SGkSQkSωkSEk1.2SGk+1.26(SQk+Sωk)γRE[1.2(SGk+0.5SQk)+1.3SEk]1.35SGk
+SQk1.2SGk
+1.4SQk|Mmax|
NNmin
MNmax
M左風(fēng)右風(fēng)左震右震5柱頂M117.7411.120.33151.03154.88155.72-38.70275.44170.07156.86275.44-38.70170.07N250.8122.760.4046.31329.15330.15203.54299.86361.35332.84299.86203.54361.35柱底M-72.09-12.420.37182.40-101.69-102.63114.53-264.86-109.74-103.90264.86114.53-109.74N283.2122.760.4046.31368.03369.03234.64330.97405.09371.72330.97234.64405.094柱頂M50.2014.030.66307.9077.0978.75-265.29375.1481.8079.88375.14-265.2981.80N480.8177.340.2095.45674.16674.68399.43597.97726.43685.25597.97399.43726.43柱底M-58.96-13.380.81379.34-86.60-88.63331.49-457.54-92.98-89.48457.54331.49-92.98N513.2177.340.2095.45713.04713.56430.54629.07770.17724.13629.07430.54770.173柱頂M58.9613.381.05466.9586.2988.93-422.60548.6592.9889.48548.65-422.6092.98N711.30131.920.32144.241019.381020.18596.16896.181092.181038.25896.18596.161092.18柱底M-57.64-13.081.25571.55-84.08-87.22532.80-656.02-90.89-87.48-656.02532.80-90.89N743.70131.920.32144.241058.261059.06627.26927.281135.921077.13927.28627.261135.922柱頂M61.0013.841.16480.4189.1892.10-434.42564.8396.1992.58564.83-434.4296.19N941.81186.510.38149.511364.691365.66838.171149.151457.951391.291149.15838.171457.95柱底M-75.63-17.161.59596.03-110.37-114.39539.03-700.71-119.26-114.78700.71539.03-119.26N974.21186.510.38149.511403.571404.54869.281180.261501.691430.171180.26869.281501.691柱頂M35.818.131.99768.4050.7155.72-760.86837.4256.4754.35837.42-760.8656.47N1171.58241.070.56217.161708.941710.351014.581466.281822.701743.391466.281014.581822.70柱底M-17.90-4.072.05795.18-24.03-29.18807.85-846.12-28.24-27.18846.12807.85-28.24N1217.93241.070.56217.161764.561765.971059.081510.771885.281799.011510.771059.081885.28表5-7A軸線框架柱端彎矩調(diào)整樓層54321截面位置柱頂柱底柱頂柱底柱頂柱底柱頂柱底柱頂柱底————731.54874.70753.11934.281116.551128.17————731.541627.812050.841128.17————1019.60390.551517.80—調(diào)整后————804.69230.85198.76760.60908.981173.29表5-8橫向框架A柱剪力組合(kN)層次SGkSQkSωkSEk1.2SGk+1.26(SQk+Sωk)γRE[1.2(SGk+0.5SQk)+1.3SEk]1.35SGk
+SQk1.2SGk
+1.4SQk左風(fēng)右風(fēng)左震右震5-38.52-3.460.1255.94-50.43-50.7319.54-96.82-55.46-51.07191.724-25.86-6.460.24110.07-38.87-39.4786.55-142.40-41.37-40.08295.473-27.07-6.370.35151.97-40.07-40.95129.00-187.09-42.91-41.40367.452-27.36-6.430.46181.65-40.35-41.51159.56-218.27-43.37-41.83340.421-23.85-5.630.60224.67-34.96-36.47208.06-259.26-37.83-36.50492.58表5-9橫向框架B柱彎矩和軸力組合截面位置內(nèi)力SGkSQkSωkSEk1.2SGk+1.26(SQk+Sωk)γRE[1.2(SGk+0.5SQk)+1.3SEk]1.35SGk
+SQk1.2SGk
+1.4SQk|Mmax|
NNmin
MNmax
M左風(fēng)右風(fēng)左震右震5柱頂M131.3112.120.027.60172.82172.86123.97139.78189.39174.54172.86123.97189.39N260.5129.110.016.33349.27349.31257.48270.65380.80353.37349.31257.48380.80柱底M-79.48-13.630.027.60-112.53-112.57-74.94-90.75-120.93-114.46112.57-74.94-120.93N292.9129.110.016.33388.15388.19288.58301.75424.54392.25388.19288.58424.544柱頂M56.6215.450.0315.8087.3787.4545.3478.2091.8989.5787.4545.3491.89N557.8497.570.0313.17792.31792.38568.66596.06850.65806.01792.38568.66850.65柱底M-63.23-14.730.0315.80-94.39-94.48-51.34-84.20-100.09-96.5094.48-51.34-100.09N590.2497.570.0313.17831.19831.26599.77627.16894.39844.89831.26599.77894.393柱頂M63.3614.730.0523.8194.5394.6643.1392.66100.2796.6594.6643.13100.27N853.30166.030.0419.841233.101233.21878.23919.501317.991256.401233.21878.231317.99柱底M-62.05-14.390.0523.81-92.53-92.66-41.71-91.24-98.16-94.6192.66-41.71-98.16N885.70166.030.0419.841271.981272.09909.33950.601361.731295.281272.09909.331361.732柱頂M65.7915.230.0724.8398.0598.2244.6596.29104.05100.2798.2244.65104.05N1148.78234.480.0620.691673.911674.051193.861236.901785.331706.811674.051193.861785.33柱底M-81.34-18.850.0724.83-121.28-121.44-61.31-112.96-128.66-124.00121.44-61.31-128.66N1181.18234.480.0620.691712.791712.931224.971268.001829.071745.691712.931224.971829.071柱頂M38.288.860.0933.1356.9957.216.5575.4660.5458.3457.216.5560.54N1444.34302.960.0727.612114.852115.031503.271560.702252.822157.352115.031503.272252.82柱底M-19.14-4.430.0933.13-28.44-28.6613.95-54.96-30.27-29.1728.6613.95-30.27N1490.69302.960.0725.652170.472170.651549.811603.162315.392212.972170.651549.812315.39表5-10B軸線框架柱端彎矩調(diào)整樓層54321截面位置柱頂柱底柱頂柱底柱頂柱底柱頂柱底柱頂柱底————123.54121.65128.39150.61100.6173.27————123.54250.04251.2273.27————773.70507.941180.53—調(diào)整后————135.90271.84286.89778.52520.0676.21表4-11橫向框架B柱剪力組合(kN)層次SGkSQkSωkSEk1.2SGk+1.26(SQk+Sωk)γRE[1.2(SGk+0.5SQk)+1.3SEk]1.35SGk
+SQk1.2SGk
+1.4SQk左風(fēng)右風(fēng)左震右震518.811.770.1671.3225.0024.6093.08-55.2727.1625.0581.8047.712.350.30140.3412.5911.84154.48-137.4212.7612.5457.6339.212.250.44193.7714.4413.33211.44-191.6014.6814.20144.6829.542.320.58231.6015.1013.64251.14-230.5915.2014.70378.0515.721.430.53199.769.338.00213.93-201.579.158.87141.055.3本章小結(jié):本章計算了CC大廈職工公寓豎向荷載作用下所受力分析,主要是屋面等豎向荷載對房屋產(chǎn)生剪切力壓力,驗算柱子能否支撐得了上層的壓力彎矩。第6章截面設(shè)計6.1框架梁混凝土框架梁的材料均用C30鋼筋混凝土。如下為其中首層AB框架梁的計算過程和計算方法。其余為其他梁的配筋計算結(jié)果,見表6-1和表6-2。表6-1框架梁縱筋配筋表樓層截面M
(kN·m)實配鋼筋
(mm2)5A支座-208.450.0990.104572.622C12(402)1.120.22AB跨間53.441750.320.0810.0854521.062C16(402)11.250.22B支座左-227.030.1130.120657.902C16(402)1.640.22B支座右-9.17-0.619-0.4961537.212C16(402)3.820.45BC跨間0.92125.840.0030.00316.002C16(402)0.040.45C支座左-9.17-0.619-0.4961537.212C16(402)3.820.45C支座右-227.030.1130.120657.902C16(402)1.640.22CD跨間53.441750.320.0810.0854521.062C16(402)11.250.22D支座左-208.450.0990.104572.622C16(402)1.120.223A支座-441.170.2570.3031660.962C20(628)1.460.42AB跨間123.861184.040.0120.012380.712C18(509)0.750.34B支座左-515.930.3130.3882126.342C20(628)1.870.42B支座右-20.000.0720.075231.552C16(402)0.200.45BC跨間4.43297.440.0150.015125.792C16(402)0.310.45C支座左-20.000.0720.075231.552C16(402)0.200.45C支座右-515.930.3130.3882126.342C20(628)1.870.42CD跨間123.861184.040.0120.012380.712C18(509)0.750.34D支座左-441.170.2570.3031660.962C20(628)1.460.421A支座-656.720.4170.5933252.543C20(942)2.140.63AB跨間153.921184.040.0190.019633.252C18(509)1.240.34B支座左-674.120.4300.6273434.293C20(942)2.260.63B支座右-26.580.2520.295914.872C18(509)0.600.57BC跨間2.62297.440.0090.00974.252C16(402)0.180.45C支座左-26.580.2520.295914.872C18(509)0.600.57C支座右-674.120.4300.6273434.293C20(942)2.260.63CD跨間153.921184.040.
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