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華中科技大學(xué)文華學(xué)院畢業(yè)設(shè)計(jì)[論文]題目:某框架結(jié)構(gòu)辦公樓設(shè)計(jì)學(xué)生姓名:鄒亮學(xué)號(hào):200410141534學(xué)部(系):城市建設(shè)工程學(xué)部專(zhuān)業(yè)年級(jí):04級(jí)土木工程四班指導(dǎo)教師:肖貴澤職稱(chēng)或?qū)W位:2008年6月2日目錄TOC\o"1-3"\h\zHYPERLINK\l"_Toc136751947"1引言1HYPERLINK\l"_Toc136751948"2工程概況2HYPERLINK\l"_Toc136751955"3梁、柱截面尺寸的初步確定43.1梁截面高度一般取梁跨度的1/12至1/8………43.2框架柱的截面尺寸根據(jù)柱的軸壓比限值……….43.3計(jì)算過(guò)程………………………...44框架側(cè)移剛度的計(jì)算…………………...64.1橫梁線剛度ib的計(jì)算…………..64.2縱梁線剛度Ib的計(jì)算…………..64.3柱線剛度ic的計(jì)算I=bh3/12…………………..64.4各層橫向側(cè)移剛度計(jì)算(D值法)…………...64.4.1底層64.4.2二—六層75重力荷載代表值的計(jì)算……………95.1資料準(zhǔn)備…………95.2重力荷載代表值的計(jì)算………95.2.1梁柱計(jì)算95.2.2內(nèi)外填充墻計(jì)算105.2.3窗戶計(jì)算11樓板恒載活載計(jì)算125.3每層重力荷載代表值…………..125.4風(fēng)荷載的計(jì)算126橫向水平荷載作用下框架結(jié)構(gòu)的內(nèi)力和側(cè)移計(jì)算………………….136.1橫向自振周期的計(jì)算…………...136.2水平地震作用及樓層地震剪力的計(jì)算………...146.2.1結(jié)構(gòu)等效總重力荷載代表值156.2.2計(jì)算水平地震影響系數(shù)156.2.3結(jié)構(gòu)總的水平地震作用標(biāo)準(zhǔn)值156.3多遇水平地震作用下的位移驗(yàn)算……………..156.4水平地震作用下框架內(nèi)力計(jì)算………………..166.4.1框架柱端剪力及彎矩計(jì)算176.4.2梁端彎矩剪力及柱軸力計(jì)算197豎向荷載作用下框架結(jié)構(gòu)的內(nèi)力計(jì)算………………207.1計(jì)算單元的選擇確定…………..207.2荷載計(jì)算………………………..207.2.1橫荷載作用下柱的內(nèi)力計(jì)算217.2.2活載作用下柱的內(nèi)力計(jì)算247.2.3恒載作用下梁的內(nèi)力計(jì)算267.2.4活載作用下梁的內(nèi)力計(jì)算277.3內(nèi)力計(jì)算………………………..267.4梁端剪力和柱軸力的計(jì)算……………………..288內(nèi)力組合……………….318.1框架梁內(nèi)力組合………………..318.2框架柱的內(nèi)力組合……………...369截面設(shè)計(jì)……………….429.1框架梁…………...429.1.1梁的最不利內(nèi)力449.1.2梁正截面承載力計(jì)算449.1.3梁斜截面受剪承載力計(jì)算459.2框架柱…………...469.2.1柱截面尺寸驗(yàn)算489.2.2柱正截面承載力計(jì)算499.2.3柱斜截面受剪承載力計(jì)算519.3框架梁柱節(jié)點(diǎn)核芯區(qū)截面抗震驗(yàn)算…………...5410樓板設(shè)計(jì)……………..5710.1樓板類(lèi)型及設(shè)計(jì)方法的選擇………………….5710.2設(shè)計(jì)參數(shù)……………………….5710.3彎矩及配筋計(jì)算……………...5711樓梯設(shè)計(jì)……………..6111.1設(shè)計(jì)參數(shù)……………………….6111.2樓梯板計(jì)算…………………….6111.2.1荷載計(jì)算6311.2.2截面設(shè)計(jì)6311.3平臺(tái)板計(jì)算…………………….6211.3.1荷載計(jì)算6411.3.2截面設(shè)計(jì)6411.4平臺(tái)梁計(jì)算…………………….6311.4.1荷載計(jì)算6511.4.2截面設(shè)計(jì)6512基礎(chǔ)設(shè)計(jì)……………...6512.1A(D)柱下基礎(chǔ)設(shè)計(jì)…………6512.2B(C)柱下基礎(chǔ)設(shè)計(jì)…………7013結(jié)論………….………….………...7914致謝辭……………8015參考文獻(xiàn)……………...81某某公司辦公樓框架結(jié)構(gòu)設(shè)計(jì)摘要本設(shè)計(jì)主要進(jìn)行了結(jié)構(gòu)方案中橫向框架2、3、4、5軸框架的抗震設(shè)計(jì)。在確定框架布局之后,先進(jìn)行了層間荷載代表值的計(jì)算,接著利用頂點(diǎn)位移法求出自震周期,進(jìn)而按底部剪力法計(jì)算水平地震荷載作用下大小,進(jìn)而求出在水平荷載作用下的結(jié)構(gòu)內(nèi)力(彎矩、剪力、軸力)。接著計(jì)算豎向荷載(恒載及活荷載)作用下的結(jié)構(gòu)內(nèi)力,。是找出最不利的一組或幾組內(nèi)力組合。選取最安全的結(jié)果計(jì)算配筋并繪圖。此外還進(jìn)行了結(jié)構(gòu)方案中的室內(nèi)樓梯的設(shè)計(jì)。完成了平臺(tái)板,梯段板,平臺(tái)梁等構(gòu)件的內(nèi)力和配筋計(jì)算及施工圖繪制。關(guān)鍵詞:框架結(jié)構(gòu)設(shè)計(jì)抗震設(shè)計(jì)AbstractThepurposeofthedesignistodotheanti-seismicdesigninthelongitudinalframesofaxis2、3、4、5.Whenthedirectionsoftheframesisdetermined,firstlytheweightofeachflooriscalculated.Thenthevibratecycleiscalculatedbyutilizingthepeak-displacementmethod,thenmakingtheamountofthehorizontalseismicforcecanbegotbywayofthebottom-shearforcemethod.Theseismicforcecanbeassignedaccordingtotheshearingstiffnessoftheframesofthedifferentaxis.Thentheinternalforce(bendingmoment,shearingforceandaxialforce)inthestructureunderthehorizontalloadscanbeeasilycalculated.Afterthedeterminationoftheinternalforceunderthedeadandliveloads,thecombinationofinternalforcecanbemadebyusingtheExcelsoftware,whosepurposeistofindoneorseveralsetsofthemostadverseinternalforceofthewalllimbsandthecoterminousgirders,whichwillbethebasisofprotractingthereinforcingdrawingsofthecomponents.Thedesignofthestairsisalsobeapproachedbycalculatingtheinternalforceandreinforcingsuchcomponentsaslandingslab,stepboardandlandinggirderwhoseshopdrawingsarecompletedintheend.Keywords:frames,structuraldesign,anti-seismicdesign1引言所謂的辦公建筑是二十世紀(jì)最偉大的標(biāo)志之一,在各大洲是辦公樓的塔尖勾畫(huà)出了城市的天際線。作為經(jīng)濟(jì)繁榮、社會(huì)進(jìn)步、技術(shù)發(fā)展最常見(jiàn)的標(biāo)志,辦公建筑已經(jīng)成為這個(gè)世紀(jì)世界運(yùn)轉(zhuǎn)狀態(tài)的象征。這一點(diǎn)完全正確,因?yàn)檗k公建筑最能夠反映過(guò)去一百年來(lái)在就業(yè)方式方面已經(jīng)發(fā)生的深刻變化.通過(guò)綜合設(shè)計(jì),新一代的高效能辦公建筑正在不斷地涌現(xiàn)出來(lái)。這些辦公建筑能夠?yàn)闃I(yè)主和承租人提高工作滿意度和工作效率,有益健康,具有更好的適應(yīng)性,節(jié)能環(huán)保。特別是通過(guò)運(yùn)用生活周期分析,這些設(shè)計(jì)方案可以使建筑設(shè)計(jì)、系統(tǒng)選擇、大樓建設(shè)這些先期投資發(fā)揮積極的作用。本設(shè)計(jì)的辦公樓結(jié)構(gòu)設(shè)計(jì)采用鋼筋混凝土框架結(jié)構(gòu),結(jié)構(gòu)布置考慮結(jié)構(gòu)受力合理,考慮結(jié)構(gòu)在豎向荷載作用下內(nèi)力分布均勻合理,各構(gòu)件材料強(qiáng)度均能達(dá)到充分利用,另外還應(yīng)考慮到施工的方便。由于缺乏實(shí)踐經(jīng)驗(yàn),限于水平,該設(shè)計(jì)還有不少的缺點(diǎn)和不妥之處,還望各位老師批評(píng)指正。2工程概況建筑地點(diǎn):唐山市建筑類(lèi)型:六層辦公樓,框架填充墻結(jié)構(gòu)。建筑介紹:建筑面積約5000平方米,樓蓋及屋蓋均采用現(xiàn)澆鋼筋混凝土框架結(jié)構(gòu),樓板厚度取100mm,填充墻采用蒸壓粉煤灰加氣混凝土砌塊。門(mén)窗使用:大門(mén)采用鋼門(mén),其它為木門(mén),門(mén)洞尺寸為1.0m×2.4m,窗為鋁合金窗,洞口尺寸為1.8m×2.1m。地質(zhì)條件:經(jīng)地質(zhì)勘察部門(mén)確定,此建筑場(chǎng)地為二類(lèi)近震場(chǎng)地,設(shè)防烈度為8度。柱網(wǎng)與層高:本辦公樓采用柱距為7.2m的內(nèi)廊式小柱網(wǎng),邊跨為5.7m,中間跨為2.4m,層高取3.6m,如下圖所示:柱網(wǎng)布置圖框架結(jié)構(gòu)承重方案的選擇:豎向荷載的傳力途徑:樓板的均布活載和恒載經(jīng)次梁間接或直接傳至主梁,再由主梁傳至框架柱,最后傳至地基。根據(jù)以上樓蓋的平面布置及豎向荷載的傳力途徑,本辦公樓框架的承重方案為橫向框架承重方案,這可使橫向框架梁的截面高度大,增加框架的橫向側(cè)移剛度??蚣芙Y(jié)構(gòu)的計(jì)算簡(jiǎn)圖橫向框架組成的空間結(jié)構(gòu)本方案中,需近似的按縱橫兩個(gè)方向的平面框架分別計(jì)算。3梁、柱截面尺寸的初步確定3.1梁截面尺寸初估L=7200mmh=(1/12~1/8)L=600~900mm,取h=600mmb=(1/4~1/2)h=150~300mm,取b=300mm即主梁截面尺寸為:bh=300mm600mm3.2框架柱的截面尺寸初估按下列公式計(jì)算:柱組合的軸壓力設(shè)計(jì)值N=βFgEn注:β考慮地震作用組合后柱軸壓力增大系數(shù)。F按簡(jiǎn)支狀態(tài)計(jì)算柱的負(fù)載面gE折算在單位建筑面積上的重力荷載代表值,可近似的取14KN/m2。n為驗(yàn)算截面以上的樓層層數(shù)。Ac≥N/uNfc注:uN為框架柱軸壓比限值,本方案為二級(jí)抗震等級(jí),查《抗震規(guī)范》可知取為0.8。fc為混凝土軸心抗壓強(qiáng)度設(shè)計(jì)值,對(duì)C30,查得14.3N/mm2。3.3計(jì)算過(guò)程對(duì)于邊柱:N=βFgEnAc≥N/uNfc=1.3×7.2×5.7×14×6×103/2/0.8/14.3=195871(mm2)對(duì)于內(nèi)柱:N=βFgEn==3628.8(KN)Ac≥N/uNfc=1.25×7.2×(1.2+5.7/2)×14×6×103/0.8/14.3=231954(mm2)梁截面尺寸(mm)混凝土等級(jí)橫梁(b×h)縱梁(b×h)AB跨、CD跨BC跨C30300×600250×400300×600柱截面尺寸(mm)層次混凝土等級(jí)b×h1C30700×7002-6C30600×600次梁截面為300×450.4框架側(cè)移剛度的計(jì)算4.1橫梁線剛度ib的計(jì)算類(lèi)別Ec(N/mm2)b×h(mm×mm)I0(mm4)l(mm)EcI0/l(N·mm)1.5EcI0//l(N·mm)2EcI0/l(N·mm)AB跨、CD跨3.0×104300×6005.40×109957002.84×101104.26×101105.68×10110BC跨3.0×104250×4001.33×109924001.67×101102.50×101103.34×101104.2縱梁線剛度Ib的計(jì)算類(lèi)別Ec(N/mm2)b×h(mm×mm)I0(mm4)l(mm)EcI0/l(N·mm)1.5EcI0//l(N·mm)2EcI0/l(N·mm)縱梁3.0×104300×6005.4×10972002.25×101103.38×101104.50×101104.3柱線剛度ic的計(jì)算I=bh3/12層次hc(mm)Ec(N/mm22)b×h(mm×mm)Ic(mm4)EcIc/hc(N·mm)148003.0×104700×7002.001×1001012.50×100102--636003.0×104600×6001.080×100109.00×101104.4各層橫向側(cè)移剛度計(jì)算(D值法)底層①、A-2、A-3、A-4、A-5、D-2、D-3、D-4、D-5(8根)K=5.68/12.5=0.454αc=(0.5+K)/(2+K)=0.3895.685.6812.54.2612.5Di1=αc×12×ic/h4.2612.5=0.389×12×12.5×1010/48002=25326②、A-1、A-6、D-1、D-6(4根)K=4.26/112.5=00.341αc=(0.5+K))/(2+KK)=0.3359Di2=αc×112×ic/h2=0.359×112×12.5×1010/480022.54.262.54.2612.5③、B-1、C-1、B-6、C-6(4根)K=(4,26++2.5)/12.5=0.5411αc=(0.5+K))/(2+KK)=0.4410Di3=αc×112×ic/h2=0.41×122×12.5×1010/480025.683.3412.5=2665.683.3412.5④、B-2、C-2、B-3、C-3、C-4、B-4、C-5、B-5(8根)K=(3.34++5.68)/12.5=0.7222αc=(0.5+K))/(2+KK)=0.4449Di4=αc×112×ic/h2=0.449×112×12.5×1010/48002=292118∑D1=25326×88+233882×4+229218××8+266667×4==63654485.6895.6895.68①、A-2、A-3、A-4、A-5、D-2、D-3、D-4、D-5(8根)K=5.68×22/(9×2)=0.6331αc=K/(2+K))=0.244Di1=αc×112×ic/h2=0.24×122×9×1010/3600024.2694.26=1994.2694.26②、A-1、A-6、D-1、D-6(4根)K=4.26×22/(9×2)=0.4733αc=K/(2+K))=0.1991Di2=αc×112×ic/h2=0.191×112×9×1010/3600024.262.594.264.262.594.264.26③、B-1、C-1、B-6、C-6(4根)K=(4,26++2.5)×2/9×2=0..751αc=(0.5+K))/(2+KK)=0.2273Di3=αc×112×ic/h2=0.273×112×9×1010/36002=2275525.683.3495.683.3495.683.34K=(3.34++5.68)×2/(9×2)=1.002αc=K/(2+K))=0.3334Di6=αc×112×ic/h2=0.334×112×9×1010/360002=277996∑D2=19989×88+159550×4+227796××8+227752×4==7295330∑D1/∑D2=636548//4915885>0.77,故該框架架為規(guī)則框架架。5重力荷載代表值的的計(jì)算5.1資料準(zhǔn)備查《荷載規(guī)范》可可?。何菝嬗谰煤奢d標(biāo)準(zhǔn)準(zhǔn)值(上人)4厚SBS改性瀝青防防水卷材(著色涂料保護(hù)護(hù)層)0.335×0.0004=0..0014KN/m2220厚1:3水泥砂漿找找平層220×0.002=0.44KN/m21:6水泥焦渣找找2%坡(最薄處30厚)14.33×0.03=0.42KKN/m260厚聚苯乙烯泡泡沫板0.5×0..0.06=0.03KKN/m2鋼筋混凝土板1000厚25×0..1=2.55KN/m220厚板底抹灰0.022×17=00.35KKN/m2合計(jì)3.7KN/mm21-5層樓面:瓷磚地面(包括水水泥,粗砂打底)0.55KN//m2100厚鋼筋混凝土板225×0.10=2.5KNN/m220厚板底抹灰0..02×177=0.344KN/mm2合計(jì)33.39KN/mm2屋面及樓面可變荷荷載標(biāo)準(zhǔn)值::不上人屋面均布活活荷載標(biāo)準(zhǔn)值值0.7KKN/m2樓面活荷載標(biāo)準(zhǔn)值值2..0KN//m2屋面雪荷載標(biāo)準(zhǔn)值值SKK=urS0=1.0×0.35=0.35KN//m2(式中ur為屋面面積雪分布系系數(shù))梁柱密度25KNN/m2陶??招钠鰤K5..0KN/m35.2重力荷載代代表值的計(jì)算算梁、柱類(lèi)別凈跨(mm)截面(mm)密度(KN/m3)體積(m3)β數(shù)量(根)單重(KN)總重(KN)橫梁5000300×600250.91.051222.5283.51700250×400250.171.0564.2526.78縱梁6500300×600251.171.052029.25614.25次梁5400300×450250.731.051018.23191.42類(lèi)別計(jì)算高度(mm)截面(mm)密度(KN/m3)體積(m3)β數(shù)量(根)單重(KN)總重(KN)柱4200700×700252.3521.102458.81552.3墻體200mm厚厚陶??招钠銎鰤K,外墻面面貼瓷磚(0.5KNN/m2)內(nèi)墻為20mmm厚抹灰,則外墻單位位墻面重力荷荷載為0.5+5×0..25+117×0.002=2.009KN//m2內(nèi)墻為200mmm厚陶??招男钠鰤K,兩側(cè)均為200mm抹灰,則內(nèi)墻單位位墻面重力荷荷載為5×0.2+177×0.022×2=1..68KNN/m2內(nèi)外填充墻重的計(jì)計(jì)算橫墻:AB跨、CD跨墻:外墻厚250mm,計(jì)算算長(zhǎng)度5000mmm,計(jì)算高度度3600--600=33000mmm。單跨體積:0.225×5×3==3.75m3單跨重量:3.775×5=18.775KN數(shù)量:4總重:18.755×4=75KNBC跨墻::外墻厚250mm,計(jì)算算長(zhǎng)度17000mm,計(jì)計(jì)算高度36600-6000=30000mm。單跨體積:(1..7×3-0.9××1.8)×0.25=0.87m3單跨重量:0.887×5=4.355KN數(shù)量:2總重:4.35××2=8.7KNAAB跨、CD跨墻:內(nèi)墻厚200mm,計(jì)算算長(zhǎng)度5000mmm,計(jì)算高度度3600--600=33000mmm。單跨體積:0.22×5×3=3m3單跨重量:3×55=15KN數(shù)量:15總重:15×155=300KN縱墻:外墻:?jiǎn)蝹€(gè)體積::[(6.5×3.0)-(1.8×2.1×2)]×0.25=2.99m3數(shù)量:8總重:2.99××8×5=119..4KN內(nèi)縱墻:1:(66.5×3.0×7..5-1×2.1×2)×0.2×5=114.775m32:0.2×55.5×3××8×5+00.2×5..5×3.115×5×55=218..63KN廁所墻:0.2××4.8×33.48×55×3=500.11KNN窗戶計(jì)算(鋼框玻玻璃窗)辦公室窗戶:尺寸:1800mmm×2100mmm自重:0.4KNN/m2數(shù)量:16重量:1.8×22.1×0.4×16=24.119KN走廊窗戶:尺寸:1800mmm×900mm自重:0.4KNN/m2數(shù)量:2重量:1.8×00.9×0..4×2=1.3KN門(mén)重計(jì)算:木門(mén):尺寸:12200mm××2400mmm自重:0.2KNN/m2數(shù)量:15重量:1.2×22.4×0.2×155=6.3KN鐵層玻璃門(mén):尺寸寸:7200mmm×3000mmm自重:1.5KNN/m2數(shù)量:1重量:7.2×33×0.4×1=32.4KNN樓板恒載、活載計(jì)計(jì)算(樓梯間間按樓板計(jì)算算)面積:(3.6--0.6)×(5.44-0.6))×20++(2.4--0.6)×(7.22××4)==349.992(m2)恒載:39.3××349.992=1186..23KN活載:2.0×3349.922=699.84KN5.3每層重力荷荷載代表值Gi=G恒+0.5××G活集中于各樓層標(biāo)高高處的重力荷荷載代表值GGi的計(jì)算結(jié)結(jié)果如下圖所所示:GG6=4001KNG5=4185KNG4=4185KNG3=4185KNG2=4185KNG1=4375KN5.4風(fēng)荷載作用下內(nèi)力力分析風(fēng)荷載計(jì)算風(fēng)壓標(biāo)準(zhǔn)值計(jì)算公公式w=βzw0usuz基本風(fēng)壓0.4KKN/m,風(fēng)載體型變變化系數(shù)us=1.33,風(fēng)震系數(shù)βz=1.00,查表,uz可查荷載規(guī)規(guī)范,地面粗糙類(lèi)類(lèi)別為C類(lèi),將風(fēng)荷載換換算成作用于于框架節(jié)點(diǎn)上上的集中荷載載,計(jì)算過(guò)程如如下表,表中z為框架節(jié)點(diǎn)點(diǎn)至室外地面面的高度,A為一品框架架各層節(jié)點(diǎn)的的受風(fēng)面積,計(jì)算結(jié)果見(jiàn)見(jiàn)下圖風(fēng)荷載計(jì)算層次βzusz(m)uzw0(KN/m)APW=w0A61.01.322.80.880.419.448.951.01.319.20.820.425.9211.0541.01.315.60.750.425.9210.131.01.312.00.740.425.929.9721.01.38.40.740.425.929.9711.01.34.80.740.427.5410.6風(fēng)荷載作用下,橫橫向框架的內(nèi)內(nèi)力分析各層柱端彎矩及剪剪力計(jì)算(中中柱)層次hi(m)Vi(KN)∑Dij(N/mmm)邊柱Di2(N/mm)Vi2(KN)kY(m)Mbi2(KNN·m)Mui2(KNN·m)63.68.9156688227521.290.7510.41.862.7953.619.95156688227522.890.7510.434.475.9343.630.05156688227524.360.7510.436.758.9533.640.02156688227525.800.7510.459.4011.4823.649.99156688227527.250.7510.47512.4013.7014.860.59170206266673.440.5410.731.8813.67各層柱端彎矩及剪剪力計(jì)算(邊邊柱)層次hi(m)Vi(KN)∑Dij(N/mmm)邊柱Di1(N/mm)Vi1(KN)ky(m)Mbi1(KN·m)Mui1(KNN·m)63.68.9156688277961.581.0020.351.993.7053.619.95156688277963.531.0020.45.087.6243.630.05156688277965.321.0020.458.6210.5333.640.02156688277967.081.0020.4511.5014.0223.649.99156688277968.851.0020.515.9315.9314.860.591702062921810.400.7720.6331.4518.477橫向水平荷載作用用下框架結(jié)構(gòu)的內(nèi)力和側(cè)移移計(jì)算7.1橫向自振周期的計(jì)計(jì)算橫向自振周期的計(jì)計(jì)算采用結(jié)構(gòu)構(gòu)頂點(diǎn)的假想想位移法?;咀哉裰芷赥11(s)可按下式式計(jì)算:T1=1.7ψT(uT)1/2注:uT假想把集中在各層層樓面處的重重力荷載代表表值Gi作為水平荷荷載而算得的的結(jié)構(gòu)頂點(diǎn)位位移。ψT結(jié)構(gòu)基本自振周期期考慮非承重重磚墻影響的的折減系數(shù),取0.8。uT按以下公式計(jì)算::VGi=∑Gk(△u)i=VGi/∑DDijuT=∑(△u)k注:∑Dij為第i層層的層間側(cè)移移剛度。(△u)i為第i層的層間側(cè)移。(△u)k為第k層的層間側(cè)移。s為同層內(nèi)框架柱的的總數(shù)。結(jié)構(gòu)頂點(diǎn)的假想側(cè)側(cè)移計(jì)算過(guò)程程見(jiàn)下表,其其中第六層的的Gi為G6和Ge之和。結(jié)構(gòu)頂點(diǎn)的假想側(cè)側(cè)移計(jì)算層次Gi(KN)VGi(KN)∑Di(N/mm)△ui(mm)ui(mm)6400140014915858.139165.24954185816849158516.616157.11441851237149158533.679115.328341851655649158533.679115.328241852074149158542.19281.649143752511663654839.45739.457T1=1.7ψT(uT)1/2=1.7×00.8×(0.1652249)1/2=0.553(ss)7.2水平地震作用及樓樓層地震剪力力的計(jì)算本結(jié)構(gòu)高度不超過(guò)過(guò)40m,質(zhì)量量和剛度沿高高度分布比較較均勻,變形形以剪切型為為主,故可用用底部剪力法法計(jì)算水平地地震作用。7.2.1結(jié)構(gòu)等效效總重力荷載載代表值GeqGeq=0.85∑∑Gi=0.85×(44375+44185×44+40011)=21348.66(KN)7.2.2計(jì)算水平平地震影響系系數(shù)а1查表得二類(lèi)場(chǎng)地近近震特征周期期值Tg=0.355s。Tg=0.35<T11=0.5553<5Tg=1.775查表得設(shè)防烈度為為8度的аmax=0..16а1=(Tg/T1)0.9ааmax=(0.355/0.5553)0.9×0..16=0.10667.2.3結(jié)構(gòu)總的的水平地震作作用標(biāo)準(zhǔn)值FEkFEk=а1Geqq=0.1066×213448.6=2262..9516(KN)因1.4Tg=1..4×0.335=0.449s<T11=0.5553s,所以應(yīng)考考慮頂部附加加水平地震作作用。頂部附附加地震作用用系數(shù)δn=0.08T1++0.07==0.08××0.5533+0.077=0.11142△F6=0.1142××2262..95=2558.5199KN各質(zhì)點(diǎn)橫向水平地地震作用按下下式計(jì)算:Fii=GiHiFEk(1-δn)/(∑GkHk)=43422.333(KN)地震作用下各樓層層水平地震層層間剪力Vi為Vii=∑Fk(i=1,2,…n)計(jì)算過(guò)程如下表::各質(zhì)點(diǎn)橫向水平地地震作用及樓樓層地震剪力力計(jì)算表層次Hi(m)Gi(KN)GiHi(KN·m)GiHi/∑GjHjFi(KN)Vi(KN)622.8400191222.80.266533.203533.203519.24185803520.234469.0531002.2566415.64185652860.190380.8551383.1111312.04185502200.146292.6571675.768828.44185351540.102204.4601880.228814.84375210000.062124.2802004.5077∑343234.88各質(zhì)點(diǎn)水平地震作作用及樓層地地震剪力沿房房屋高度的分分布見(jiàn)下圖::(具體數(shù)值見(jiàn)上表表)7.3多遇水平地震作用用下的位移驗(yàn)驗(yàn)算水平地震作用下框框架結(jié)構(gòu)的層層間位移(△u)i和頂點(diǎn)位移ui分別按下下列公式計(jì)算算:(△u)i=Vi/∑DDijui=∑(△u)k各層的層間彈性位位移角θe=(△u)i/hi,根據(jù)《抗抗震規(guī)范》,考考慮磚填充墻墻抗側(cè)力作用用的框架,層層間彈性位移移角限值[θe]<1/5550。計(jì)算過(guò)程如下表::橫向水平地震作用用下的位移驗(yàn)驗(yàn)算層次Vi(KN)∑Di(N/mm)(△u)i(mm)ui(mm)hi(mm)θe=(△u)i/hi6533.2034915851.08516.3236000.0003051002.25664915852.03915.23536000.000566641383.11114915852.81313.19636000.0007831675.76884915853.40910.38336000.0009521880.22884915853.8256.97436000.0010612004.50886365483.1493.14948000.0006由此可見(jiàn),最大層層間彈性位移移角發(fā)生在第第二層,1/0.000106<<0.001181,滿足規(guī)范范要求。7.4水平地震作用下框框架內(nèi)力計(jì)算算7.4.1框架柱端端剪力及彎矩矩分別按下列列公式計(jì)算Vij=DijVi/∑DijMbij=Vijj*yhMuij=Vij(1-y)hy=yn+y1++y2+y3注:yn框架柱的標(biāo)準(zhǔn)反彎彎點(diǎn)高度比。y1為上上下層梁線剛剛度變化時(shí)反反彎點(diǎn)高度比比的修正值。y2、yy3為上下層層層高變化時(shí)反反彎點(diǎn)高度比比的修正值。y框架柱柱的反彎點(diǎn)高高度比。底層柱需考慮修正正值y2,第二層柱柱需考慮修正正值y1和y3,其它柱均均無(wú)修正。下面以2,3,44,5軸線橫向框框架內(nèi)力的計(jì)計(jì)算為例:各層柱端彎矩及剪剪力計(jì)算(邊邊柱)層次hi(m)Vi(KN)∑Dij(N/mmm)邊柱Di1(N/mm)Vi1(KN)ky(m)Mbi1(KN·m)Mui1(KNN·m)63.6533.2034915851998921.6810.6310.265520.7257.3353.61002.25664915851998940.7510.6310.365553.6293.0843.61383.11114915851998956.2370.6310.4080.98121.4733.61675.76884915851998968.0360.6310.45110.22134.7123.61880.22884915851998976.4500.6310.475130.73144.4914.82004.50886365482532681.5030.4540.773226.8188.81例:第六層邊柱的的計(jì)算:Vi1=176811×12411.908//7626000=28..794(KN)y=yn=0.118(m)(無(wú)修正)Mbi1=288.794××0.18××3.6=118.66(KN*m)Mui1=288.794××(1-0.118)×3.6==85.000(KN*m)各層柱端彎矩及剪剪力計(jì)算(中中柱)層次hi(m)Vi(KN)∑Dij(N/mmm)中柱Di2(N/mm)Vi2(KN)kY(m)Mbi2(KNN·m)Mui2(KNN·m)63.6533.2034915852779630.1571.0020.3537.9970.5653.61002.25664915852779656.6711.0020.481.61122.4143.61383.11114915852779678.2011.0020.45126.68154.8433.61675.76884915852779694.7481.0020.45153.49187.6023.61880.228849158527796106.3081.0020.50191.35191.3514.82004.508849158529218113.3350.7220.65353.61190.407.4.2梁端彎矩矩、剪力及柱柱軸力分別按按以下公式計(jì)計(jì)算Mlb=iilb(Mbi+1,j+Mui,j)/(ilb+irb)Mrb=irb(Mbi+1,j+Mui,j)/(ilb+irb)Vb=(Mlb+Mrb)/lNii=∑(Vlb-Vrb)k具體計(jì)算過(guò)程見(jiàn)下下表:梁端彎矩、剪力及及柱軸力的計(jì)計(jì)算層次邊梁走道梁柱軸力MlbMrblVbMlbMrblVb邊柱N中柱N657.3344.435.7017.8548.1748.172.4021.78-17.85-2.465143.96128.197.2037.6995.1595.152.4049.46-55.54-14.234214.60192.287.2056.85142.72142.722.4072.91-112.39-30.293270.56253.437.2072.58188.10188.102.4096.9-184.97-54.612299.26270.917.2082.80201.08201.082.40106.38-267.77-81.751347.06304.427.2080.71225.95225.952.40117.71-348.48-118.75例:第六層:邊梁Mlb=Mu6=85.000KN··mMrb=1113.08**4.5/(4.5+33.34)=64.991KN··m走道梁Mllb=Mrb=113..08-644.91=448.17KN·m邊柱N=0-220.82==-20.882KN中柱N=20..82-400.14=--19.322KN8豎向荷載作用下框框架結(jié)構(gòu)的內(nèi)內(nèi)力計(jì)算8.1計(jì)算單元的選擇確確定?、圯S線橫向框架進(jìn)行行計(jì)算,如下下圖所示:計(jì)算單元寬度為55.7m,由由于房間內(nèi)布布置有次梁(b×h=2000mm×400mmm),故直接接傳給該框架架的樓面荷載載如圖中的水水平陰影所示示。計(jì)算單元元范圍內(nèi)的其其余樓面荷載載則通過(guò)次梁梁和縱向框架架梁以集中力力的形式傳給給橫向框架,作作用于各節(jié)點(diǎn)點(diǎn)上。由于縱縱向框架梁的的中心線與柱柱的中心線不不重合,所以以在框架節(jié)點(diǎn)點(diǎn)上還作用有有集中力矩。8.2荷載計(jì)算8.2.1恒載作用用下柱的內(nèi)力力計(jì)算恒荷載作用下各層層框架梁上的的荷載分布如如下圖所示::對(duì)于第6層,q1、q1,代表橫梁自重,為為均布荷載形形式。q1=0.3×0.66×25×1.005=4.725KNN/mq1,=0.25×0..4×25×1.005=2.625KN//mq2、和q2,分別為屋面板和走走道板傳給橫橫梁的梯形荷荷載和三角形形荷載。q2=3.7×3.66=13.332KN//mq2,=3.7×2.44=8.888KN/mP1、P2分別由邊縱梁、中中縱梁直接傳傳給柱的恒載載,它包括主主梁自重、次次梁自重、樓樓板重等重力力荷載,計(jì)算算如下:P1=[(3.6×1.9××1/2)×2+(1.9+55.7)×1.9//2]×33.7+4..725×77.2+3.544×55.7/2++2.09××0.9×77.2=1110KNP2=[(3.6×1.9××1/2)×2+(1.9+55.7)×1.9//2+3×11.2×2]]×3.77+4.7225×7.22+3.5444×5.44/2=1222.7422KN集中力矩M1=PP1e1=1110×(0.6-00.3)/2=116.5KKN·mM2=P2e2==122.774×(0.6-00.3)/2==18.4KN·m對(duì)于2-5層,包括括梁自重和其其上橫墻自重重,為均布荷荷載,其它荷荷載的計(jì)算方方法同第6層。q11=4.7225+0.22×3.0××5=7.8825KNN/mq1,=0.25×0..4×25×1.005=2.625KN//mq2、和q2,分別為樓面板和走走道板傳給橫橫梁的梯形荷荷載和三角形形荷載。q2=3.39×3..6=12..20KNN/mq2,=3.39×2..4=8.114KN//m外縱墻線密度[[(7.2×××2.1×22)×0.244×5.5++2×1.88×2.1××0.4]//7.2=22.99KKN/mP1=(3.6×1.9××2)×3.6++4.7255×7.2++3.5444×2.855+2.099×(6.66××2.11×2)+00.4×1..8×2.11×2=1117.31KNP2=(3.6×1.9××2+6×11.2)×3.6++4.7255×7.2++3.5444×2.855+1.688×2.855×(7.22-0.6))=148..3KN集中力矩M1=PP1e1==117.33×(0.6-00.3)/2==17.6KKN·mM2==P2e2=148..3×(0.6-00.3)/2=29.225KN··m對(duì)于第1層,柱子為700mmm×700mmm,其余數(shù)據(jù)據(jù)同2-5層,則q1=4.725+00.2×3..0×5×11.05=77.875KN/mq1,=0.25×0..4×25×1.005=2.625KN//mq2、和q2,分別為樓面板和走走道板傳給橫橫梁的梯形荷荷載和三角形形荷載。q2=3.39×3..6=12..20KNN/mq2,=3.39×2..4=8.114KN//m外縱墻線密度[[(7.2×××2.1×22)×0.244×5.5++2×1.88×2.1**0.4]//7.2=22.99KKN/mP1=(3.6×1.9××2)×3.6++4.7255×7.2++3.5444×2.855+2.099×(6.66××2.11×2)+00.4×1..8×2.11×2=1117.31KNP2=(3.6×1.9××2+6×11.2)×3.6++4.7255×7.2++3.5444×2.855+1.688×2.855×(7.22-0.6))=148..3KN集中力矩M1=PP1e1==117.331×(0.70--0.3)/2==17.6KN·mM2==P2e2=148..3×(0.70--0.3)/2=22.225KN··m8.2.2活載作用用下柱的內(nèi)力力計(jì)算活荷載作用下各層層框架梁上的的荷載分布如如下圖所示::對(duì)于第6層,q2=2.0×3.66=7.2KN/mq2,=2.0×2.44=4.8KKN/mP1=(3.6×1.8++3.6×11.9)×2.0==27.366KNP2=(3.6×1.9××2+6×11.2)×2.0==41.766KN集中力矩M1=PP1e1==27.366×0.155==4.10KN·mM2==P2e2=41.776×0.115=6KNN·m同理,在屋面雪荷荷載的作用下下:q2=0.35×3..6=1.226KN//mq2,=0.2×2.44=0.488KN/mmP1=(3.6×1.9++3.6×11.9)×0.2==2.7366KNP2=(3.6×1.9××2+6×11.2)×0.2==4.18KN集中力矩M1=PP1e1==2.7366×0.155==0.41KKN·mM2==P2e2=4.1776×0.115=0.633KN·mm對(duì)于第2-5層,q2=2.0×3.66=7.2KN/mq2,=2.0×2.44=4.8KN/mP1=(3.6×1.9++3.6×11.9)×2=277.36KKNP2=(3.6×1.9××2+6×11.2)×2.0==41.766KN集中力矩M1=PP1e1==27.366×0.155==4.1KKN·mM2==P2e2=41.776×0.115=6.266KN·mm對(duì)于第1層,q2=2.00×3.6==7.2KKN/mq2,=2.0×2.44=4.8KN/mP1=(3.6×1.9++3.6×11.9)×2=277.36KKNP2=(3.6×1.9××2+6×11.2)×2.0==41.766KN集中力矩M1=PP1e1=27.336×(0.70--0.3)/2=5.477KN·mmM22=P2e2=41..76×(0.70--0.3)/2=8.335KN··m將計(jì)算結(jié)果匯總?cè)缛缦聝杀恚簷M向框架恒載匯總總表層次q1(KN/m)q1,(KN/m)q2(KN/m)q2,(KN/m)P1(KN)P2(KN)M1(KN·m)M2(KN·m)64.7252.62513.328.88110122.7416.518.42-57.8752.62512.208.14117.31148.3017.6022.2517.8752.62512.208.14117.31148.317.622.25橫向框架活載匯總總表層次q2(KN/m)q2,(KN/m)P1(KN)P2(KN)M1(KN·m)M2(KN·m)67.2(1.26)4.8(0.48)27.36(2.736)41.76(4.18)4.10(0.41)6.26(0.63)2-57.24.827.3641.764.16.2617.24.827.3641.765.478.35注:表中括號(hào)內(nèi)數(shù)數(shù)值對(duì)應(yīng)于屋屋面雪荷載作作用情況。8.2.3恒荷載作作用下梁的內(nèi)內(nèi)力計(jì)算恒荷載作用下各層層框架梁上的的荷載分布如如下圖所示::等效于均布荷載與與梯形、三角角形荷載的疊疊加。α=a/l==2.4/77.2=1//3對(duì)于第6層,-MMAB=q1l21/12+qq2l21(1-2α2+α3)=44.725××5.72/12+113.32××5.72×[1-22×(0.42)2+(0.42)3]/12=338.8(KN·m)-MMBC=q1,l22/12+55q2,l22/96=22.625××2.42/12+55×8.8××2.42/96=33.92(KN·m)對(duì)于第1-5層,-MMAB=q1l21/12+qq2l21(1-2α2+α3)=77.875××5.72/12+112.2×55.72×[1-22×(0.72)2+(0.72)3]/12=339.16(KN·m)-MMBC=q1,l22/12+55q2,l22/96=22.625××2.42/12+55×8.144×2.422/96=33.7(KN·m)8.2.4活荷載作作用下梁的內(nèi)內(nèi)力計(jì)算活荷載作用下各層層框架梁上的的荷載分布如如下圖所示::對(duì)于第1-6層,-MMAB=q2l21(1-2α2+α3)=77.2×5..72×[1-22×(0.72)2+(0.72)3]/12=114.04(KN·m)-MMBC=5qq2,l22/96=55×4.8××2.42/96=11.44(KN·m)8.3內(nèi)力計(jì)算梁端、柱端彎矩采采用彎矩二次次分配法計(jì)算算,由于結(jié)構(gòu)構(gòu)和荷載均對(duì)對(duì)稱(chēng),故計(jì)算算時(shí)可用半框框架,彎矩計(jì)計(jì)算如下圖所所示:8.4梁端剪力和柱軸力力的計(jì)算8.4.1恒載作用用下例:第6層:荷載載引起的剪力力:VA=VB=(13.322×3.8++4.7255×5.7)/2 ==38.777KNVB=VC=(8.888×1.22+2.6225×2.44)/2 ==8.48KN本方案中,彎矩引引起的剪力很很小,可忽略略不計(jì)。A柱:N頂=110..0+38..77=1448.77KN柱重重:0.6×00.6×3..6×25==32.400KNNN底=N頂+32.440=1811.17KKNB柱:N頂=122..74+388.77+88.48=1169.999KN恒載作用下梁端剪剪力及柱軸力力(KN)層次荷載引起的剪力柱軸力AB跨BC跨A柱B柱VA=VBVB=VCN頂N底N頂N底638.778.48148.77181.17169.99202.39540.28.04306.28338.68326.33358.73440.28.04463.79496.19482.67439.13340.28.04621.30653.70639.01635.67240.28.04778.81811.21795.35832.21140.28.04936.32995.12951.691055.158.4.2活載作用用下例:第6層:荷載載引起的剪力力:AB跨:VA=VB=7.2××4.8/22=17.228KNBC跨:VB=VC=4.8××1.2/22=2.888KNAA柱:N頂=N底=27.336+17..28=444.64KKN B柱:N頂=N底=41.776+17..28+2..88=611.92KKN活載作用下梁端剪剪力及柱軸力力(KN)層次荷載引起的剪力柱軸力AB跨BC跨A柱B柱VA=VBVB=VCN頂=N底N頂=N底617.282.8844.6461.92517.282.8889.28123.84417.282.88133.92185.76317.282.88178.56247.68217.282.88223.20309.60117.282.88267.84371.529內(nèi)力組合9.1框架梁內(nèi)力組合本方案為二級(jí)抗震震等級(jí)。本方方案考慮了三三種內(nèi)力組合合,即1.2SGkk+1.4SSQk,1.35SGk+1..0SQkk及1.2SGEE+1.3SSEk??紤]到到鋼筋混凝土土結(jié)構(gòu)具有塑塑性內(nèi)力重分分布的性質(zhì),在在豎向荷載下下可以適當(dāng)降降低梁端彎矩矩,進(jìn)行調(diào)幅幅(調(diào)幅系數(shù)數(shù)取0.8),以減少少負(fù)彎矩鋼筋筋的擁擠現(xiàn)象象。ηvb梁端剪力力增大系數(shù),二二級(jí)取1.2。各層梁的內(nèi)力組合合和梁端剪力力調(diào)整結(jié)果如如下表:層次截面位置內(nèi)力SGk調(diào)幅后SQk調(diào)幅后SwkSEk[1.2×(SSGk+0.55SQk)+1.3SSEk]1.35SGk+1.0SSQk1.2SGk+1.4SQkSGk×1.2+11.4×0..9(SQk+Swk)12126AM-26.68-9.262.7957.3336.957-112.1011-45.28-44.98-40.168-47.199V38.7717.280.917.8533.68780.09769.6270.7269.43167.163B左M-29.81-10.872.3344.43-100.053315.465-51.11-50.98-46.532-52.404V38.7717.280.917.8580.09733.68769.6270.71669.43167.163B右M-5.89-2.021.3726.1325.689-42.249-9.97-9.89-7.887-11.339V8.482.881.1421.78-16.4140.21914.3314.20815.24112.3685AM-30.13-10.687.79113.08104.44-189.5688-51.15-51.11-39.787-59.428V40.217.282.4337.69107.6059.61174.2572.4373.074666.951B左M-31.49-11.386.05101.05-175.9886.7553.66-53.72-44.504-59.749V40.217.282.4337.69107.6059.61171.2072.4373.07566.951B右M-3.90-1.633.5659.3571.497-82.813-6.90-6.96-2.248-11.219V6.042.882.9749.46-52.92275.67413.73413.6817.0199.53464AM-29.6-10.4613.42175.09185.82-269.42-50.42-50.16-31.79-65.61V40.217.284.0856.85-15.3132.5274.2572.4364.6275.15B左M-31.49-11.279.38148.96-238.16149.153.78-53.5763.8140.17V40.217.284.0856.8548.8139.8974.2572.4364.6275.15B右M-4.09-1.75.7887.49107.78-119.7-7.24-7.290.22-13.90V8.042.884.8272.97-83.40106.1613.7313.687.2119.353AM-29.6-10.4618.23215.69238.6-322.2-50.42-50.16-25.73-71.67V40.217.285.7072.58-39.89148.8174.2572.4362.8377.19B左M-31.49-11.2714.26198.00-301.95212.8553.78-53.57-69.9634.02V40.217.285.7072.58148.8139.8974.2572.4362.8377.19B右M-4.09-1.78.38116.28145.72-157.56-7.24-7.293.5-17.62V8.042.886.9896.90-114.59137.3513.7313.68-4.4822.072AM-29.5-10.3723.1254.71289.5-372.74-50.2-49.92-19.36-77.57V40.217.287.0882.80-49.03166.2474.2572.4361.0978.93B左M-31.45-11.2117.28217.25-326.90275.90-53.67-53.43-73.64-30.09V40.217.287.0882.80166.2449.0374.2572.4380.5759.45B右M-4.12-1.7710.15127.59159.86-171.98-7.3-7.425.61-19.96V8.042.888.48106.33-126.84149.6113.7313.68-4.0523.961AM-29.17-10.3626.07219.54244.18-326.62-49.74-49.5-15.21-80.90V40.217.288.3880.71-46.37163.5374.2572.4359.4580.57B左M-31.97-10.721.67240.50-357.43267.87-53.86-53.34-79.15-24.54V40.217.288.3880.71163.55-46.3174.2572.4380.5759.45B右M-4.12-1.5112.73141.25177.78-189.47-7.07-7.069.19-22.89V8.042.8810.61117.71-141.81164.2313.7313.68-0.0926.65跨間最大彎矩的計(jì)計(jì)算:以第一層AB跨梁梁為例,說(shuō)明明計(jì)算方法和和過(guò)程。計(jì)算理論::根據(jù)梁端彎彎矩的組合值值及梁上荷載載設(shè)計(jì)值,由由平衡條件確確定。均布和梯形荷載下下,如下圖::VA=-(MA+MMB)/l+q1l/2+(1-a)lq2/2若VA-(2q1+q2)aal/2≤0,說(shuō)明x≤al,其中x為最大正彎彎矩截面至A支座的距離離,則x可由下式求求解:VA-q1x-x2qq2/(2al)=0將求得的x值代入入下式即可得得跨間最大正正彎矩值:Mmax=MA+VVAx-q1x2/2-x3q2/(6al)若VA-(2q1+q2)aal/2>00,說(shuō)明x>al,則x=(VA+alq2/2)/(q1+q2)可得跨間最大正彎彎矩值:Mmax=MA+VVAx-(q1+q2)x2/2+allq2(x-al//3)/2若VA≤0,則Mmax=MA同理,三角形分布布荷載和均布布荷載作用下下,如下圖::VA=-(MA+MMB)/l+q1l/2+q2l/4x可由下式解得:VA=q1x+x2q2/l可得跨間最大正彎彎矩值:Mmax=MA+VAx-q1x2/2-x3q2/3l第1層AB跨梁:梁上荷載載設(shè)計(jì)值:q1=1.2××7.8755=9.455KN/mmq2=1.2×(12.200+0.5××7.2)=18.996KN//m左左震:MA=244..18KNN·mMB=-3577.43KKN·mVA=-(MA-MMB)/l+q1l/2+(1-a)lq2/2=-(244.118+3577.43)/5.7++9.45××5.7/22+18.996×5.77/3=-42..59KNN<0則Mmax發(fā)生在左支支座,Mmax=1.33MEk-1.00MGE=1.3×2199.54-(29.177+0.5××10.366)=314.57KN·m右震:MA=-3266.62KKN·mMBB=267..87KNN·mVA=-(MA-MMB)/l+q1l/2+(1-a)lq2/2=(326.662+2677.87)/5.7++9.45××5.7/22+18.996×5.77/3=167..25KNN由于167.25-(2×9.445+18..96)×1.9//2=1311.28>00,故x>al==l/3=11.9mx=(VA+alq2/2)/(q1+q2)=(167.25+11.2×188.96)/(9.45++18.966)=7.06mMmax=MAA+VAx-(q1+q2)x2/2+allq2(x-al//3)/2=-326.622+167..25×7..06-(9.45++18.966)×(7.06)2/2+18.96×11.9×(7.06--1.9/33)/2=261.9KKN·m其它跨間的的最大彎矩計(jì)計(jì)算結(jié)果見(jiàn)下下表:跨間最大彎矩計(jì)算算結(jié)果表層次123跨ABBCABBCABBCMmax314.57178.48296.43160.87245.57146.22層次456跨ABBCABBCABBCMmax192.79108.78111.5372.1643.2227.07梁端剪力的調(diào)整::抗震設(shè)計(jì)中,二級(jí)級(jí)框架梁和抗抗震墻中跨高高比大于2.5,其梁端剪剪力設(shè)計(jì)值應(yīng)應(yīng)按下式調(diào)整整:V=γRe[ηvb(MMlb+Mrb)/ln+VGbb]對(duì)于第6層,AB跨跨:受力如圖圖所示:梁上荷載設(shè)計(jì)值::q1=1.2××4.7255=5.677KN/mmq22=1.2×(13.322+0.55×7.2)=20.330KN//mVVGb=5..67×5..7/2+220.3×33.8/2==54.733KNlln=5.7--0.6=55.1m左震:Mlb==36.966KN·mmMrb=-1000.05KKN·mVV=[ηvb(Mlb+Mrb)/ln+VGbb]=[1.22×(39.966+100..05)/5.1++54.733]=87.667KN右震:Mlb==-112..1KN··mMrb=15.447KN··mVV=[ηvb(Mlb+Mrb)/ln+VGbb]=[1.22×(112.11+15.447)/5.1++54.733]=84.775KNBC跨:受力如圖所示示:梁上荷載設(shè)計(jì)值::q1=1.2××2.6255=3.155KN/mmq22=1.2×(8.88++0.5*44.8)=13.554KN//mVVGb=3..15×2..4/2+113.54××1.2/22=11.990KNlln=2.4--0.6=11.8m左震:Mlb==Mrb=25.669KN··mVV=γRe[ηvb(Mlb+Mrb)/ln+VGbb]=0.755×[1.22×2×255.69/11.8+111.9]=46.008KN右震:Mlb==Mrb=42.225KN··mVV=[ηvb(Mlb+Mrb)/ln+VGbb]=[1.22×2×422.25/11.8+111.9]=68.223KN對(duì)于第1-5層,AB跨跨:q1=1.2××7.8755=9.455KN/mmqq2=1.2×(12.200+0.5××7.2)=18.996KN//mVVGb=9..45×5..7/2+118.96××3.8/22=62.995KNBC跨跨:q1=1.2××2.6255=3.155KN/mmqq2=1.2×(8.14++0.5×44.8)=12.665KN//mVVGb=3..15×2..4/2+112.65××1.2/22=11.337KN剪力調(diào)整方法同上上,結(jié)果見(jiàn)47頁(yè)各層梁的的內(nèi)力組合和和梁端剪力調(diào)調(diào)整表。9.2框架柱的內(nèi)力組合合取每層柱頂和柱底底兩個(gè)控制截截面,組合結(jié)結(jié)果如下表::橫向框架A柱彎矩矩和軸力組合合層次截面內(nèi)力SGk調(diào)幅后SQk調(diào)幅后SEk(1)SEk(2)1.2×(SGGk+0.55SQk)+1.3SSEk1.35SGk+1.0SSQk1.2SGk+11.4SQkkMmaxMM12NNminNmax6柱頂M16.857.472.7957.33-49.8399.2330.22-25.3199.23-49.8330.22N148.7744.640.917.85182.11228.52245.48241.02228.52182.11245.48柱底M-11.4-5.211.8620.7210.13-43.75-20.6-20.9743.7510.13-20.6N181.1744.640.917.85220.98267.4289.22279.9267.4220.98289.225柱頂M8.664.055.9393.08-108.2133.8215.7416.06133.82-108.1815.74N306.2889.283.3355.54348.90493.3502.76492.53493.3348.90502.76柱底M-9.7-4.494.4753.6255.37-81.66-17.59-17.93-81.6655.37-17.59N338.6889.283.3355.54387.78532.18546.50531.41532.18387.78546.504柱頂M9.74.498.95121.47-143.6172.3217.5917.93172.32-143.58172.32N463.79133.927.38112.39490.79783.01760.04744.04783.01490.79783.01柱底M-9.7-4.496.7580.9890.84-119.5-17.59-17.93-119.590.84-119.5N496.19133.927.38112.39529.67821.89803.78782.92821.89529.67821.893柱頂M9.74.4911.48134.71-160.8189.4517.5917.93189.45-160.7917.59N621.30178.5613.08184.97470.12951.041017.32995.54951.04470.121017.32柱底M-9.91-4.679.40110.22128.6-157.98-18.05-18.43157.98128.6157.98N653.70178.5613.08184.97651.121132.041061.061034.41132.04651.121132.042柱頂M6.374.213.7144.49-177.7198.0011.8413.52198.00-177.68198.00N778.81223.2020.16267.77720.391416.591274.591247.11416.59720.391416.59柱底M-10.26-4.3212.40130.73-155.1184.8-18.08-18.23184.8-155.1184.8N811.21223.2020.16267.72759.351455.391318.3312861455.39759.351455.391柱頂M8.63.2513.6788.81-103.2127.7214.8614.87127.
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