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目錄目錄 1第一章內(nèi)容摘要 3Abstract 4第二章結(jié)構(gòu)選型及布置 52.1結(jié)構(gòu)選型 52.2結(jié)構(gòu)布置 5第三章框架的計(jì)算簡(jiǎn)圖及梁柱尺寸確定 63.1主要構(gòu)件材料及尺寸估算 63.2主要構(gòu)件的截面尺寸 63.3框架結(jié)構(gòu)計(jì)算簡(jiǎn)圖和結(jié)構(gòu)平面布置圖 7第四章豎向荷載作用下的框架結(jié)構(gòu)的內(nèi)力計(jì)算 84.1橫向框架計(jì)算單元 84.2梁、柱線剛度計(jì)算 84.3恒載荷載計(jì)算 94.4恒載內(nèi)力計(jì)算 154.5活載荷載計(jì)算 224.6活載內(nèi)力計(jì)算 274.7豎向荷載作用下梁、柱內(nèi)力計(jì)算 33第五部分橫向荷載作用下框架結(jié)構(gòu)的內(nèi)力計(jì)算 415.1風(fēng)荷載作用樓層剪力的計(jì)算 415.2梁、柱線剛度計(jì)算 415.3框架柱的側(cè)移剛度D值計(jì)算 425.4風(fēng)荷載作用下框架內(nèi)力計(jì)算 43第六章橫向框架內(nèi)力組 496.1恒載作用下內(nèi)力組合 496.2活載作用下內(nèi)力組合 516.3風(fēng)載作用下內(nèi)力組合 52第七章截面設(shè)計(jì) 547.1框架梁設(shè)計(jì) 547.2框架柱設(shè)計(jì) 577.3裂縫驗(yàn)算 637.4偏心受壓構(gòu)件裂縫驗(yàn)算 66第八部分基礎(chǔ)設(shè)計(jì) 698.1設(shè)計(jì)參數(shù): 69第九章樓板設(shè)計(jì) 759.1屋面和樓面板的荷載計(jì)算 759.2樓板計(jì)算 76第十章次梁設(shè)計(jì) 9310.1荷載計(jì)算 9310.2次梁計(jì)算 9310.3截面設(shè)計(jì) 95第十一章樓梯設(shè)計(jì) 9811.1樓梯板計(jì)算 9811.2平臺(tái)板計(jì)算 10011.3平臺(tái)梁計(jì)算 101第十二章電算比較 10312.1數(shù)據(jù)輸入 10312.2數(shù)據(jù)輸出 106第十三章施工組織設(shè)計(jì) 11613.1工程概況 11613.2施工方案 11712.3施工進(jìn)度計(jì)劃 12713.4保證安全措施 12813.5現(xiàn)場(chǎng)施工平面布置圖見施工圖紙; 12813.6施工組織施工進(jìn)度計(jì)劃表見施工圖紙。 128外文資料 129中文譯文 137致謝 141參考文獻(xiàn) 142第一章內(nèi)容摘要本設(shè)計(jì)主要進(jìn)行了結(jié)構(gòu)方案中橫向框架A、B、C、D、E軸框架的設(shè)計(jì)。在確定框架布局之后,先計(jì)算了恒載,活載,風(fēng)載的等效荷載以及各桿端的內(nèi)力,然后用分層法進(jìn)行內(nèi)力分配,然后各層疊加,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)。接著內(nèi)力組合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。關(guān)鍵詞:框架,結(jié)構(gòu)設(shè)計(jì),內(nèi)力組合.AbstractThepurposeofthedesignistodotheanti-seismicdesigninthelongitudinalframesofaxisA,B,C,D,E.Whenthedirectionsoftheframesisdetermined,firstlytheweightofeachflooriscalculated.Thenthevibratecycleiscalculatedbyutilizingthepeak-displacementmethod,thenmakingtheamountofthehorizontalseismicforcecanbegotbywayofthebottom-shearforcemethod.Theseismicforcecanbeassignedaccordingtotheshearingstiffnessoftheframesofthedifferentaxis.Thentheinternalforceinthestructureunderthehorizontalloadscanbeeasilycalculated.Afterthedeterminationoftheinternalforceunderthedeadandliveloads,thecombinationofinternalforcecanbemadebyusingtheExcelsoftware,whosepurposeistofindoneorseveralsetsofthemostadverseinternalforceofthewalllimbsandthecoterminousgirders,whichwillbethebasisofprotractingthereinforcingdrawingsofthecomponents.Keywords:frames,structuraldesign,第二章結(jié)構(gòu)設(shè)計(jì)總說(shuō)明2.1工程概況:本設(shè)計(jì)為長(zhǎng)沙雅禮中學(xué)10#教學(xué)樓,設(shè)計(jì)要求建筑面積約為:,層數(shù)為:4-5層,結(jié)構(gòu)形式為:鋼筋混凝土框架結(jié)構(gòu)。柱網(wǎng)布置圖2.2自然條件:該地區(qū)全年主導(dǎo)風(fēng)向夏季東南風(fēng),冬季北偏東風(fēng);全年最高氣溫40.3℃,最低氣溫-2.7℃。最大降雨強(qiáng)度集中在6、7、8月,年平均降水量1289mm.2.3地質(zhì)條件:序號(hào)巖土分類土層深度(m)厚度范圍(m)地基承載力fak(kpa)樁端阻力qp(kpa)樁周摩擦力qs(kpa)1耕表土0—1.01.02粉砂1.0—1.30.3100153粉土1.3—5.03.7220234中密砂5.0—10.85.8240302.4設(shè)計(jì)依據(jù):⑴《房屋建筑學(xué)》李必瑜主編.武漢理工大學(xué)出版社,2004⑵《混凝土結(jié)構(gòu)設(shè)計(jì)原理》(第4版)沈蒲生.北京:高等教育出版社,2008⑶《結(jié)構(gòu)抗震設(shè)計(jì)》尚守平.北京:高等教育出版社,2003⑷《土木工程施工》.應(yīng)惠清主編.同濟(jì)大學(xué)出版社.2001年2月第1版⑸《高層建筑結(jié)構(gòu)設(shè)計(jì)》沈蒲生.北京:中國(guó)建筑工業(yè)出版社,2006⑹《土力學(xué)與基礎(chǔ)工程》趙明華.北京:高等教育出版社,2003⑺《房屋建筑制圖統(tǒng)一標(biāo)準(zhǔn)》GB/T50001-2001.北京:中國(guó)建筑工業(yè)出版社,2002⑻《建筑制圖標(biāo)準(zhǔn)》GB/T50104-2001.北京:中國(guó)建筑工業(yè)出版社,2002⑼《民用建筑設(shè)計(jì)通則》GB50352—2005.北京:中國(guó)建筑工業(yè)出版社,2005⑽《建筑設(shè)計(jì)防火規(guī)范》GBJ16—87(2005版).北京:中國(guó)建筑工業(yè)出版社,2005⑾《中南地區(qū)建筑標(biāo)準(zhǔn)設(shè)計(jì)結(jié)構(gòu)圖集》武漢:湖北科學(xué)技術(shù)出版社,2004⑿《中南地區(qū)通用建筑標(biāo)準(zhǔn)設(shè)計(jì)建筑配件圖集》(合訂本).武漢:湖北科學(xué)技術(shù)出版社,2004⒀《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》GB50010—2010.北京:中國(guó)建筑工業(yè)出版社,2010⒁《建筑抗震設(shè)計(jì)規(guī)范》GB50011—2010.北京:中國(guó)建筑工業(yè)出版社,2010⒂《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》GB50007—2011.北京:中國(guó)建筑工業(yè)出版社,2011⒃《建筑結(jié)構(gòu)荷載規(guī)范》GB50009—2001(2006版).北京:中國(guó)建筑工業(yè)出版社,2006⒄《砌體結(jié)構(gòu)設(shè)計(jì)規(guī)范》GB50003—2011.北京:中國(guó)建筑工業(yè)出版社,2012⒅《土木工程工程專業(yè)畢業(yè)設(shè)計(jì)指導(dǎo)》梁興文史慶軒北京:科學(xué)出版社,20022.5設(shè)計(jì)要求:⑴建筑結(jié)構(gòu)的安全等級(jí):二級(jí)。⑵設(shè)計(jì)使用年限:50年。⑶建筑耐久等級(jí)、防火等級(jí)均為Ⅱ級(jí)。⑷框架結(jié)構(gòu)為二a類環(huán)境。⑸環(huán)境類別:梁板為一類環(huán)境,⑹屋面防水等級(jí):Ⅱ級(jí)。2.6結(jié)構(gòu)選型:1.結(jié)構(gòu)體系選型:采用鋼筋混凝土現(xiàn)澆框架結(jié)構(gòu)體系。2.屋面結(jié)構(gòu):采用鋼筋混凝土現(xiàn)澆樓板,采用不上人屋面,屋面板厚100;3.樓面結(jié)構(gòu):采用鋼筋混凝土現(xiàn)澆樓板,板厚100;4.樓梯結(jié)構(gòu):采用鋼筋混凝土板式樓梯;5.基礎(chǔ)梁:采用鋼筋混凝土基礎(chǔ)梁;6.基礎(chǔ):采用鋼筋混凝土柱下獨(dú)立基礎(chǔ)。7.雨蓬:由于懸挑長(zhǎng)度較大,采用懸挑梁板結(jié)構(gòu)。2.7設(shè)計(jì)方案:鋼筋混凝土框架結(jié)構(gòu)是由梁、柱通過(guò)節(jié)點(diǎn)連接組成的承受豎向荷載和水平荷載的結(jié)構(gòu)體系。墻體只給圍護(hù)和隔斷作用。框架結(jié)構(gòu)具有建筑平面布置靈活,室內(nèi)空間大等優(yōu)點(diǎn),因此這次設(shè)計(jì)的中學(xué)教學(xué)樓采用鋼筋混凝土框架結(jié)構(gòu)。按結(jié)構(gòu)布置不同,框架結(jié)構(gòu)可以分為橫向承重,縱向承重和縱橫向承重三種布置方案。選取6號(hào)軸線為一榀橫向框架計(jì)算單元。結(jié)構(gòu)布置圖與計(jì)算簡(jiǎn)圖第三章梁柱尺寸確定及框架的計(jì)算簡(jiǎn)圖3.1構(gòu)件材料:⑴框架梁、板、柱采用現(xiàn)澆鋼筋混凝土構(gòu)件,⑵墻體采用混凝土空心砌塊,⑶混凝土強(qiáng)度:梁、板、柱均采用C30混凝土,鋼筋使用HPB235,HRB400二種鋼筋。3.2截面尺寸:(1)框架梁:橫向框架梁,最大跨度=8100mm,由查表知:,取邊跨h=800mm,取中跨h=400mm,取b=300mm縱向框架梁,最大跨度=5400m,,取h=500mm,取b=250mm(2)框架柱:查表得混凝土的,其中,n為驗(yàn)算截面以上樓層層數(shù),g為折算在單位建筑面積上的重力荷載代表值,框架結(jié)構(gòu)近似取18kN/m2,F(xiàn)為按簡(jiǎn)支狀態(tài)計(jì)算的柱的負(fù)荷面,β為考慮地震作用組合后柱軸壓力增大系數(shù),查表得β=1.3抗震等級(jí)四級(jí)的框架結(jié)構(gòu)軸壓比,邊柱和中柱的負(fù)荷面積分別是5.4m×4.05m和5.4m×5.4m。邊柱中柱所以邊柱取400mm×600mm,中柱取500mm×500mm。3.3框架結(jié)構(gòu)計(jì)算簡(jiǎn)圖:框架結(jié)構(gòu)計(jì)算簡(jiǎn)圖第四章豎向荷載作用下的框架結(jié)構(gòu)的內(nèi)力計(jì)算4.1橫向框架計(jì)算單元:根據(jù)結(jié)構(gòu)布置和荷載計(jì)算,對(duì)一榀橫向中框架進(jìn)行計(jì)算,又,所以荷載雙向傳遞,故房間內(nèi)直接傳給該框架的樓面荷載如圖中的陰影線所示。橫向框架計(jì)算單元4.2梁、柱線剛度計(jì)算:⑴由于該榀框架取自采用現(xiàn)澆樓板的中框架,故其框架梁。⑵采用分層法計(jì)算時(shí),假定上、下柱的遠(yuǎn)端為固定時(shí)與實(shí)際情況有出入,因此除底層外,其余各層柱的線剛度應(yīng)乘以0.9的修正系數(shù),且其傳遞系數(shù)由。下面分別列表計(jì)算:橫梁線剛度計(jì)算類別(m×m)()(m)()()()邊跨橫梁0.3×0.80.01288.115.823.731.6中跨橫梁0.3×0.40.00162.75.938.9411.9柱線剛度計(jì)算層次(m)(m×m)()()()15.50.4×0.60.007213.111.790.5×0.50.00529.58.552-43.90.4×0.60.007218.516.650.5×0.50.005213.311.9753.60.4×0.60.007220.018.000.5×0.50.005214.412.96橫向中框架梁、柱線剛度(單位:)所計(jì)算的中框架是對(duì)稱結(jié)構(gòu),在計(jì)算豎向荷載作用時(shí),取一半計(jì)算,斷開的中跨線剛度是原來(lái)的2倍。4.3恒載荷載計(jì)算:荷載計(jì)算:線荷載屋面:屋面恒載5.2kN/m2屋面板傳來(lái)的恒載:5.2×4.05=21.06kN/m教室梁自重:0.30×0.8×25=6kN/m教室梁側(cè)粉刷:2×(0.8-0.12)×0.02×17=0.46kN/m教室橫梁的矩形線荷載合計(jì):6.46kN/m教室橫梁的三角形線荷載合計(jì):21.06kN/m走廊板傳來(lái)的恒載:5.2×2.7=14.04kN/m走廊梁自重:0.30×0.4×25=3kN/m走廊梁側(cè)粉刷:2×(0.4-0.10)×0.02×17=0.2kN/m走廊橫梁的矩形線荷載合計(jì):3.2kN/m走廊橫梁的三角形線荷載合計(jì):14.04kN/m樓面:樓面恒載4.1kN/m2樓面板傳來(lái)的恒載:4.1×4.05=16.61kN/m教室梁自重:0.30×0.8×25=6kN/m教室梁側(cè)粉刷:2×(0.8-0.12)×0.02×17=0.46kN/m教室梁上墻自重:0.24×(3.9-0.8)×19=14.14kN/m教室梁上墻面粉刷:(3.9-0.8)×0.02×2×17=2.108kN/m教室橫梁的矩形線荷載合計(jì):22.71kN/m教室橫梁的三角形形線荷載合計(jì):16.61kN/m走廊:樓面恒載3.6kN/m2走廊樓面?zhèn)鱽?lái)的恒載:3.6×2.7=9.72kN/m走廊梁自重0.30×0.4×25=3kN/m走廊梁側(cè)粉刷:2×(0.4-0.10)×0.02×17=0.2kN/m走廊橫梁的矩形線荷載合計(jì):3.2kN/m走廊橫梁的三角形線荷載合計(jì):9.72kN/m荷載計(jì)算:集中荷載次梁傳來(lái)的集中荷載:屋面:板傳來(lái)的恒載:5.2×4.05=21.06kN/m次梁自重:0.25×(0.4-0.12)×25=1.75kN/m次梁粉刷:0.02×(0.4-0.12)×2×17=0.19kN/m(5.4+5.4-4.05)×21.06×0.5+1.75×5.4+0.19×5.4=81.56KN樓面:板傳來(lái)的恒載:4.1×4.05=16.61kN/m次梁自重:0.25×(0.4-0.12)×25=1.75kN/m次梁粉刷:0.02×(0.4-0.12)×2×17=0.19kN/m(5.4+5.4-4.05)×16.61×0.5+1.75×5.4+0.19×5.4=66.54KN屋面框架節(jié)點(diǎn)集中荷載:邊柱聯(lián)系梁自重:0.25×0.6×5.4×25=20.25KN粉刷:0.02×(0.6-0.12)×2×5.4×17=1.76KN0.6m挑檐板自重:0.6×5.4×5.2=16.8KN0.6m高排水外延溝自重:0.6×5.4×25×0.12=9.72KN邊柱聯(lián)系梁傳來(lái)屋面荷載:0.5×(5.4+5.4-4.05)×4.05/2×5.2=35.53KN頂層邊節(jié)點(diǎn)集中荷載合計(jì):84.15KN中柱聯(lián)系梁自重:0.25×0.6×5.4×25=20.25KN粉刷:0.02×(0.6-0.12)×2×5.4×17=1.76KN聯(lián)系梁傳來(lái)的屋面板荷載:0.5×(5.4+5.4-2.7)×2.7/2×5.2=18.6KN0.5×(5.4+5.4-4.05)×4.05/2×5.2=35.54KN頂層中節(jié)點(diǎn)集中荷載合計(jì):76.15KN樓面框架節(jié)點(diǎn)集中荷載:邊柱聯(lián)系梁自重:0.25×0.6×5.4×25=20.25KN粉刷:0.02×(0.6-0.12)×2×5.4×17=1.76KN塑鋼窗:5KN窗下墻體自重:0.24×1.2×5.4×19=29.5KN窗下墻體粉刷自重:2×0.02×1.2×5.4×17=4.41KN框架柱自重:0.6×0.4×3.9×25=23.4KN框架柱粉刷自重:(0.6+0.4)×2×0.02×3.9×17=2.65KN聯(lián)系梁傳來(lái)的樓面自重:0.5×(5.4+5.4-4.05)×4.05/2×4.1=28.02KN樓面層邊節(jié)點(diǎn)集中荷載合計(jì):115KN中柱聯(lián)系梁自重:0.25×0.6×5.4×25=20.25KN粉刷:0.02×(0.6-0.12)×2×5.4×17=1.76KN內(nèi)縱墻自重:5.4×(3.9-0.6)×0.24×19=81.3KN內(nèi)縱墻墻體粉刷自重:5.4×(3.9-0.6)×2×0.02×17=12.2KN扣除門洞:-2.1×1.0×0.24×19+5=-4.5KN框架柱自重:0.6×0.4×3.9×25=23.4KN框架柱粉刷自重:(0.6+0.4)×2×0.02×3.9×17=2.65KN聯(lián)系梁傳來(lái)的樓面自重:0.5×(5.4+5.4-2.7)×2.7/2×3.6=18.6KN0.5×(5.4+5.4-4.05)×4.05/2×4.1=28.02KN樓面層中節(jié)點(diǎn)集中荷載合計(jì):183.68KN集中荷載引起的偏心彎矩M屋面層集中荷載引起的偏心彎矩M84.15×0.45=37.87KN·M樓面層集中荷載引起的偏心彎矩M:115×0.175=20.1KN·M屋面層梁上作用的恒載屋面層梁上作用的恒載在上圖中,gk1、qk1′分別代表橫梁自重,是均布荷載形式;gk2和gk2′分別代表房間和走廊傳給橫梁的兩個(gè)三角形荷載和三角形荷載,gk代表跨中次梁集中荷載。gk1=6.46kN/mgk2=21.06kN/mgk1′=3.2kN/mgk2′=14.04kN/mgk=81.56KNgk2、gk2′、gk代表房間和走廊傳給橫梁的梯形、三角形荷載和跨中集中荷載,需要將其轉(zhuǎn)化為等效均布荷載。兩個(gè)三角形荷載三角形荷載跨中集中荷載橫向框架恒荷載:屋面板:11.18+6.46+15.10=32.74kN/m(8.1m跨)8.78+3.2=11.98kN/m(2.7m跨)樓面層梁上作用的恒載在上圖中,gk1、gk1′分別代表橫梁自重,是均布荷載形式;gk2和gk2′分別代表房間和走廊傳給橫梁的兩個(gè)三角形荷載和三角形荷載,gk代表跨中次梁集中荷載。gk1=22.71kN/mgk2=16.61kN/mgk1′=3.2kN/mgk2′=9.72kN/mgk=66.54KNgk2、gk2′、gk代表房間和走廊傳給橫梁的梯形、三角形荷載和跨中集中荷載,需要將其轉(zhuǎn)化為等效均布荷載。兩個(gè)三角形荷載三角形荷載跨中集中荷載橫向框架恒荷載:樓面板:22.71+8.82+12.32=43.85kN/m(8.1m跨)6.08+3.2=9.28kN/m(2.7m跨)4.4恒載內(nèi)力計(jì)算分層法的計(jì)算要點(diǎn):①作用在某一層的框架梁上的豎向荷載只對(duì)本樓層的梁和與本層梁相連的框架柱產(chǎn)生彎矩和剪力,而對(duì)其他層框架和隔層的框架柱都不產(chǎn)生彎矩和剪力。②除底層以外的其它各層柱的線剛度均乘折減系數(shù)0.9。③除底層以外的其它各層柱的彎矩傳遞系數(shù)取1/3。0.6550.6380.12037.850.3450.242-179.00179.00-7.2848.7092.4546.23-69.52-139.05-52.74-26.1526.1523.9945.5422.77-14.53-5.51-2.732.7372.68-110.5394.42-58.25-36.1728.8924.23-19.42頂層彎矩分配(單位KN·M)28.79-20.536.53-1.2022.26-19.3286.38-61.5919.60-3.6166.78-57.970.1950.2570.4860.5130.097-20.100.2570.195-239.75239.75-5.6066.78126.2963.14-76.26-152.51-57.97-28.8428.8419.6037.0618.53-9.51-3.61-1.801.8086.38-152.66159.41-61.59-36.2330.6328.79-20.53標(biāo)準(zhǔn)層彎矩分配(單位KN·M)30.05-21.307.01-1.3323.04-19.9890.16-63.9121.04-3.9969.12-59.930.2000.2660.5040.5280.098-20.100.2300.174-239.75239.75-5.6059.77130.9665.48-79.10-158.21-52.14-29.3629.3618.1939.8719.93-10.53-3.47-1.951.9577.96-148.02156.44-55.60-36.9231.3225.99-18.53底層彎矩分配(單位KN·M)節(jié)點(diǎn)彎矩二次調(diào)整:在用分層法計(jì)算豎向荷載作用下的結(jié)構(gòu)內(nèi)力時(shí),計(jì)算的框架節(jié)點(diǎn)處彎矩之和不等于零,這是由于分層計(jì)算單元與實(shí)際結(jié)構(gòu)不符帶來(lái)的誤差,因此要對(duì)節(jié)點(diǎn)不平衡力矩再做一次彎矩分配,予以修正。頂層框架邊柱節(jié)點(diǎn),下層框架傳來(lái)彎矩是28.79kN·m,。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:頂層框架中柱節(jié)點(diǎn),下層框架傳來(lái)彎矩是-20.53kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖0.6550.6380.1200.3450.24228.79-18.8613.10-20.532.46-9.93-110.5394.424.97-36.1772.68-58.2591.54-129.39107.52-73.81-33.71第四層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是24.23kN·m,28.79kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:第四層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-19.42kN·m、-20.53kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖24.23-19.42-13.637.7986.38-61.5996.98-73.220.1950.2570.4860.5130.0970.2570.19528.79-25.7720.49-20.533.88-13.63-152.66159.417.79-36.2386.38-61.59101.54-178.43179.90-74.33-32.35第四層二次彎矩分配(單位KN·M)第三層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是28.79kN·m,28.79kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:第三層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-20.53kN·m、-20.53kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖28.79-20.53-14.808.0186.38-61.59100.37-74.110.1950.2570.4860.5130.0970.2570.19528.78-27.9821.06-20.533.98-14.80-152.66159.418.01-36.2386.38-61.59100.36-180.64180.47-74.11-32.25三層二次彎矩分配(單位KN·M)第二層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是28.79kN·m,30.05kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:第二層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-20.53kN·m、-21.30kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖28.79-20.53-15.128.1686.38-61.59100.05-73.960.1950.2570.4860.5130.0970.2570.19530.05-28.6021.46-21.304.06-15.12-152.66159.418.16-36.2386.38-61.59101.31-181.26180.87-74.73-32.17二層二次彎矩分配(單位KN·M)底層框架邊柱節(jié)點(diǎn),上層框架傳來(lái)彎矩是28.79kN·m,。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:底層框架中柱節(jié)點(diǎn),上層框架傳來(lái)彎矩是-20.53kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖28.79-20.53-7.664.1190.16-63.91111.29-80.330.2000.2660.5040.5280.0980.2300.174-14.5110.842.01-6.62-148.02156.443.57-36.9277.96-55.6071.34-162.53167.28-52.03-34.91底層二次彎矩分配(單位KN·M)4.5活載荷載計(jì)算屋面活荷載:0.5kN/m2,(不上人屋面),摟面活荷載:2.0kN/m2,走廊:2.5kN/m2荷載計(jì)算:線荷載屋面:屋面活載0.5kN/m2屋面板傳來(lái)的活載:0.5×4.05=2.03kN/m教室橫梁的三角形線荷載合計(jì):2.03kN/m走廊板傳來(lái)的活載:0.5×2.7=1.35kN/m走廊橫梁的三角形線荷載合計(jì):1.35kN/m樓面:樓面活載2.0kN/m2樓面板傳來(lái)的活載:2.0×4.05=8.1kN/m教室橫梁的梯形線荷載合計(jì):8.1kN/m走廊:樓面活載2.5kN/m2走廊樓面?zhèn)鱽?lái)的活載:2.5×2.7=7.29kN/m走廊橫梁的三角形線荷載合計(jì):7.29kN/m荷載計(jì)算:集中荷載次梁傳來(lái)的集中荷載:屋面:板傳來(lái)的活載:0.5×4.05=2.03kN/m(5.4+5.4-4.05)×2.03×0.5=6.86KN次梁傳來(lái)的集中荷載合計(jì):6.86KN樓面:板傳來(lái)的活載:2.0×4.05=8.1kN/m(5.4+5.4-4.05)×8.1×0.5=27.2KN次梁傳來(lái)的集中荷載合計(jì):27.2KN屋面框架節(jié)點(diǎn)集中荷載邊柱聯(lián)系梁傳來(lái)的屋面活載:0.6×5.4×0.5=1.62KN0.5×(5.4+5.4-4.05)×4.05/2×0.5=3.42KN頂層邊節(jié)點(diǎn)集中荷載合計(jì):5.04KN中柱聯(lián)系梁傳來(lái)的屋面活載:0.5×(5.4+5.4-2.7)×2.7/2×0.5=2.73KN0.5×(5.4+5.4-4.05)×4.05/2×0.5=3.42KN頂層中節(jié)點(diǎn)集中荷載合計(jì):6.15KN樓面框架節(jié)點(diǎn)集中荷載:邊柱聯(lián)系梁傳來(lái)的樓面活載:0.5×(5.4+5.4-4.05)×4.05/2×2.0=13.67KN樓面層邊節(jié)點(diǎn)集中荷載合計(jì):13.67KN中柱聯(lián)系梁傳來(lái)的樓面活載:0.5×(5.4+5.4-2.7)×2.7/2×2.5=13.67KN0.5×(5.4+5.4-4.05)×4.05/2×2.0=13.67KN樓面層中節(jié)點(diǎn)集中荷載合計(jì):27.34KN集中荷載引起的偏心彎矩M屋面層集中荷載引起的偏心彎矩M:5.04×0.45=2.27KN·M樓面層集中荷載引起的偏心彎矩M:27.34×0.175=4.78KN·M屋面層梁上作用的活載在上圖中,qk1、qk1′分別代表房間和走廊傳給橫梁的三角形荷載。qk1=2.03kN/mqk1′=1.35kN/mqk=6.86KNqk1、qk1′代表房間和走廊傳給橫梁的三角形荷載和跨中集中荷載,需要將其轉(zhuǎn)化為等效均布荷載。兩個(gè)三角形荷載三角形荷載跨中集中荷載橫向框架活荷載:屋面板:1.08+1.27=2.35kN/m(8.1m跨)0.844kN/m(2.7m跨)樓面層梁上作用的活載在上圖中,qk1、qk1′分別代表房間和走廊傳給橫梁的三角形荷載。qk1=8.1kN/mqk1′=7.29kN/mqk=27.2KNqk1、gk1′代表房間和走廊傳給橫梁的梯形、三角形荷載和跨中集中荷載,需要將其轉(zhuǎn)化為等效均布荷載。兩個(gè)三角形荷載三角形荷載跨中集中荷載橫向框架活荷載:樓面板:4.3+5.04=9.34kN/m(8.1m跨)4.56kN/m(2.7m跨)4.6活載內(nèi)力計(jì)算活載作用下節(jié)點(diǎn)分配系數(shù)同恒載作用下節(jié)點(diǎn)分配系數(shù)相同。0.6550.6380.1202.270.3450.242-12.8512.85-0.513.656.933.46-5.04-10.08-3.82-1.901.901.743.301.65-1.05-0.40-0.200.205.39-7.666.83-4.22-2.612.091.80-1.41頂層彎矩分配(單位KN·M)6.15-4.271.36-0.254.79-4.0218.44-12.824.08-0.7514.36-12.070.1950.2570.4860.5130.097-4.780.2570.195-51.1051.10-2.7714.3627.1613.58-15.88-31.76-12.07-6.016.014.087.723.86-1.98-0.75-0.370.3718.44-32.1034.80-12.82-9.156.386.15-4.27中間層彎矩分配(單位KN·M)6.42-4.441.46-0.284.95-4.1619.25-13.314.38-0.8314.86-12.480.2000.2660.5040.5280.098-4.780.2300.174-51.1051.10-2.7712.8528.1614.08-16.48-32.95-10.86-6.126.123.798.304.15-2.19-0.72-0.410.4116.64-31.1134.19-11.58-9.296.525.55-3.86底層彎矩分配(單位KN·M)節(jié)點(diǎn)彎矩二次調(diào)整:同恒荷載作用下一樣,在活荷載作用下也要對(duì)節(jié)點(diǎn)不平衡力矩再做一次彎矩分配,予以修正。頂層框架邊柱節(jié)點(diǎn),下層框架傳來(lái)彎矩是6.15kN·m,。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:頂層框架中柱節(jié)點(diǎn),下層框架傳來(lái)彎矩是-4.27kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖0.6550.6380.1200.3450.2426.15-4.032.72-4.270.51-2.12-7.666.831.03-2.615.39-4.229.42-11.699.55-7.46-2.10頂層二次彎矩分配(單位KN·M)第四層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是1.80kN·m,6.15kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:頂層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-1.41kN·m、-4.27kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖1.80-1.41-2.041.1118.44-12.8218.20-13.120.1950.2570.4860.5130.0970.2570.1956.15-3.862.91-4.270.55-2.04-32.1034.801.11-9.1518.44-12.8222.55-35.9637.71-15.98-8.60第四層二次彎矩分配(單位KN·M)第三層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是6.15kN·m,6.15kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:頂層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-4.27kN·m、-4.27kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖6.15-4.27-3.161.6718.44-12.8221.43-15.420.1950.2570.4860.5130.0970.2570.1956.15-5.984.38-4.270.83-3.16-32.1034.801.67-9.1518.44-12.8221.43-38.0839.18-15.42-8.32三層二次彎矩分配(單位KN·M)第二層框架邊柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是6.15kN·m,6.42kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:第二層框架中柱節(jié)點(diǎn),上層和下層框架傳來(lái)彎矩分別是-4.27kN·m、-4.44kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖6.15-4.27-3.231.7018.44-12.8221.36-15.390.1950.2570.4860.5130.0970.2570.1956.42-6.114.47-4.440.85-3.23-32.1034.801.70-9.1518.44-12.8221.63-38.2139.27-15.56-8.31二層二次彎矩分配(單位KN·M)底層框架邊柱節(jié)點(diǎn),上層框架傳來(lái)彎矩是6.15kN·m,。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:底層框架中柱節(jié)點(diǎn),上層框架傳來(lái)彎矩是-4.27kN·m。節(jié)點(diǎn)各構(gòu)件分配到的彎矩分別為:將分配到的不平衡彎矩與節(jié)點(diǎn)彎矩相加得到節(jié)點(diǎn)的平衡彎矩。見下圖6.15-4.27-1.640.8519.25-13.3123.76-16.730.2000.2660.5040.5280.0980.2300.174-3.102.250.42-1.41-31.1134.190.74-9.2916.64-11.5815.23-34.2136.44-10.84-8.87底層二次彎矩分配(單位KN·M)4.7豎向荷載作用下梁、柱內(nèi)力計(jì)算梁端、柱端彎矩見彎矩圖。梁端剪力:梁端剪力示意圖柱軸力:柱軸力示意圖邊柱(上):中柱(上):邊柱(下):中柱(下):恒載作用下,根據(jù)公式。計(jì)算梁端剪力:恒載作用下梁端剪力序號(hào)梁端彎矩梁間恒載跨度梁端剪力邊跨中跨邊跨中跨邊跨中跨邊跨中跨MlMrMlMrqqLLVaVb左Vb右Vc左5129.39107.5233.7133.7132.7411.988.12.7135.31129.9116.1716.174178.43179.932.3532.3543.859.288.12.7177.41177.7712.5312.533180.64180.4732.2532.2543.859.288.12.7177.61177.5712.5312.532181.26180.8732.1731.443.859.288.12.7177.64177.5412.8112.811162.53167.2834.9134.9143.859.288.12.7177.01178.1812.5312.53恒載作用下柱軸力序號(hào)柱截面層高容重集中荷載邊跨中跨邊跨中跨A柱B柱b(M)h(M)b(M)h(M)H(M)γ(kn/m3)NNN頂N底N頂N底50.40.60.50.53.9258476219.46242.86222.2246.640.40.60.50.53.925115184535.27558.67620.664530.40.60.50.53.925115184851.28874.681019104320.40.60.50.53.9251151841167.31190.71417144110.40.60.50.55251151841482.71512.718161847活載作用下梁端剪力序號(hào)梁端彎矩梁間活載跨度梁端剪力邊跨中跨邊跨中跨邊跨中跨邊跨中跨MlMrMlMrqqLLVaVb左Vb右Vc左511.699.422.102.102.350.848.102.709.809.241.141.14435.9637.718.608.609.344.568.102.7037.6138.046.166.16338.0839.188.328.329.344.568.102.7037.6937.966.166.16238.2139.278.318.319.344.568.102.7037.7037.966.166.16134.2136.448.878.879.344.568.102.7037.5538.106.166.16活載作用下柱軸力序號(hào)集中荷載梁端剪力A柱B柱邊跨中跨邊跨中跨NNVaVb左VN頂N頂55.046.159.809.241.1414.8416.53413.6727.3437.6138.046.1666.1288.07313.6727.3437.6937.966.16117.48159.53213.6727.3437.7037.966.16168.85230.99113.6727.3437.5538.106.16220.07302.59梁跨中彎矩計(jì)算:各層梁的跨中彎矩見下表:豎向恒載作用下跨中彎矩計(jì)算(單位:kN·m)層次梁端彎矩跨度梁間恒載恒載作用下邊跨中跨邊跨中跨邊跨中跨MlMrMlMrLLqqAB跨BC跨5129.39107.5233.7133.718.102.7032.7411.98150.05-22.794178.43179.9032.3532.358.102.7043.859.28180.46-23.893180.64180.4732.2532.258.102.7043.859.28179.07-23.792181.26180.8732.1732.178.102.7043.859.28178.56-23.711162.53167.2834.9134.918.102.7043.859.28194.72-26.45豎向活載作用下跨中彎矩計(jì)算(單位:kN·m)層次梁端彎矩跨度梁間恒載活載作用下邊跨中跨邊跨中跨邊跨中跨MlMrMlMrLLqqAB跨BC跨511.699.422.102.108.102.702.350.848.72-1.33435.9637.718.608.608.102.709.344.5639.76-4.44338.0839.188.328.328.102.709.344.5637.97-4.16238.2139.278.318.318.102.709.344.5637.86-4.15134.2136.448.878.878.102.709.344.5641.27-4.71恒載作用下框架彎矩圖(單位:kN·m)活載作用下框架彎矩圖(單位:kN·m)恒載作用下框架梁剪力圖、柱軸力圖(單位:kN活載作用下框架梁剪力圖、柱軸力圖(單位:kN·m)第五部分橫向荷載作用下框架結(jié)構(gòu)的內(nèi)力計(jì)算5.1風(fēng)荷載作用樓層剪力的計(jì)算層次βzμsz(m)μzωoAPw51.01.320.61.260.4513.7710.1541.01.316.71.180.4521.0614.5031.01.312.81.080.4521.0613.2821.01.38.91.000.4521.0612.3211.01.35.01.000.4522.6813.275.2梁、柱線剛度計(jì)算橫梁線剛度ib和柱線剛度ic計(jì)算分別見下表:梁、柱線剛度計(jì)算:橫梁線剛度計(jì)算類別b×hIlEcI/l1.5EcI/l2EcI/l(m×m)()(m)()()()邊橫梁0.3×0.80.01288.115.823.731.6中橫梁0.3×0.40.00162.75.938.9411.9柱線剛度ic計(jì)算層次hb×hIEcI/l(m)(m×m)()()150.4×0.60.007214.40.5×0.50.005210.42—53.90.4×0.60.007218.50.5×0.50.005213.35.3框架柱的側(cè)移剛度D值計(jì)算樓層計(jì)算簡(jiǎn)圖Kα一般層i2i1i2K=i1+i2+i3+i4/2icα=K/(2+K)icici4i3i4底層K=i1+i2/icα=(0.5+K)/(2+K)i2i1i2icic框架柱側(cè)移剛度D值層次線剛度層高邊柱中柱∑D邊梁邊柱中梁中柱HKaDKaD531.618.511.913.33.91.7080.4616.723.2710.6216.5126.47431.618.511.913.33.91.7080.4616.723.2710.6216.5126.47331.618.511.913.33.91.7080.4616.723.2710.6216.5126.47231.618.511.913.33.91.7080.4616.723.2710.6216.5126.47131.614.411.910.45.02.1940.6424.444.1830.7573.7816.445.4風(fēng)荷載作用下框架內(nèi)力計(jì)算求出框架層間剪力后,分配的剪力以及該柱上下端彎矩,反彎點(diǎn)高度y按下式計(jì)算:y0為標(biāo)準(zhǔn)框架的反彎點(diǎn)高度比,y1為上下梁剛度比變化時(shí)的反彎點(diǎn)高度比修正系數(shù),y2y3是柱上下層高度變化時(shí)的反彎點(diǎn)高度比修正系數(shù)柱剪力分配表層次層剪力邊柱D值中柱D值∑D每根邊柱剪力每根中柱剪力510.156.726.5126.472.582.50424.656.726.5126.476.266.06337.936.726.5126.479.639.33250.256.726.5126.4712.7612.36163.524.443.7816.4417.1514.60各層柱反彎點(diǎn)計(jì)算表層次邊柱中柱5n=5j=5n=5j=5k=1.708y0=0.385k=3.271y0=0.45a1=1y1=0a1=1y1=0a3=1y3=0a3=1y3=0y=0.385y=0.454n=5j=4n=5j=4k=1.708y0=0.435k=3.271y0=0.464a1=1y1=0a1=1y1=0a2=1y2=0a2=1y2=0a3=1y3=0a3=1y3=0y=0.435y=0.4643n=5j=3n=5j=3k=1.708y0=0.485k=3.271y0=0.5a1=1y1=0a1=1y1=0a2=1y2=0a2=1y2=0a3=1y3=0a3=1y3=0y=0.485y=0.52n=5j=2n=5j=2k=1.708y0=0.5k=3.271y0=0.5a1=1y1=0a1=1y1=0a2=1y2=0a2=1y2=0a3=1y3=0a3=1y3=0y=0.5y=0.51n=5j=1n=5j=1k=2.194y0=0.55k=4.183y0=0.55a1=1y1=0a1=1y1=0a2=1y2=0a2=1y2=0y=0.55y=0.55各層柱端彎矩和剪力計(jì)算:柱端彎矩見彎矩圖。柱端剪力層次54321邊柱2.586.269.6312.7617.15中柱2.506.069.3312.3614.60層次邊柱剪力中柱剪力層高邊柱y中柱y邊柱柱端M邊柱柱底M中柱柱端M中柱柱底M52.582.53.90.390.456.193.875.364.3946.266.063.90.440.4613.7910.6212.6710.9739.639.333.90.490.519.3418.2218.1918.19212.7612.363.90.50.524.8824.8824.124.1117.1514.650.550.5538.5947.1632.8540.15梁端剪力、彎矩、柱軸力計(jì)算:梁端彎矩,剪力:梁端彎矩、剪力,柱軸力計(jì)算層次邊梁中梁柱軸力MblMbrVbMbrMblVb邊柱中柱56.193.901.241.471.471.091.24-0.16417.6712.393.714.674.673.464.96-0.41329.9621.186.317.987.985.9111.27-0.81243.1030.739.1111.5711.578.5720.38-1.36163.4741.3712.9415.5815.5811.5433.33-2.76風(fēng)荷載作用下框架彎矩圖(單位:kN)梁端剪力及柱軸力圖(單位:kN)第六章橫向框架內(nèi)力組進(jìn)行框架梁的內(nèi)力組合,控制截面有兩個(gè),分別是梁端和梁跨中。需要進(jìn)行內(nèi)力組合,得到梁端最大的正彎矩和梁端最大的負(fù)彎矩,還有梁跨中最大的正彎矩。梁端柱邊的剪力和彎矩的公式:6.1恒載作用下內(nèi)力組合恒載作用下梁端柱邊剪力序號(hào)梁端剪力梁間恒載柱邊梁端剪力邊跨中跨邊跨中跨邊跨中跨VaVb左Vb右Vc左ggVa’Vb’左Vb’右Vc’左5135.31129.9116.1716.1732.7411.98125.49121.7213.1813.184177.41177.7712.5312.5343.859.28164.26166.8110.2110.213177.61177.5712.5312.5343.859.28164.46166.6110.2110.212177.64177.5412.5312.5343.859.28164.49166.5810.2110.211177.01178.1812.5312.5343.859.28163.86167.2210.2110.21恒載作用下梁端柱邊彎矩序號(hào)梁端彎矩柱邊梁端剪力柱邊梁端彎矩邊跨中跨邊跨中跨邊跨中跨MlMrMlMrVa'Vb'左Vb'右Vc'左Ml'Mr'Ml'Mr'5129.4107.533.733.71125.5121.7213.1813.1891.7477.0930.4230.424178.4179.932.432.35164.3166.8110.2110.21129.2138.229.829.83180.6180.532.332.25164.5166.6110.2110.21131.3138.8229.729.72181.3180.932.232.17164.5166.5810.2110.21131.9139.2329.6229.621162.5167.334.934.91163.9167.2210.2110.21113.4125.4832.3632.36在豎向荷載作用下,梁端彎矩進(jìn)行調(diào)幅,乘以系數(shù)0.8。恒載作用下梁端柱邊彎矩序號(hào)柱邊梁端彎矩調(diào)幅后柱邊梁端彎矩邊跨中跨邊跨中跨Ml'Mr'Ml'Mr'βMl'βMr'βMl'βMr'591.7477.0930.4230.4273.3961.6724.3424.344129.15138.2029.8029.80103.32110.5623.8423.843131.30138.8229.7029.70105.04111.0623.7623.762131.91139.2329.6229.62105.53111.3823.7023.701113.37125.4832.3632.3690.70100.3825.8925.89梁端彎矩調(diào)幅后,在相應(yīng)荷載作用下的跨中彎矩必然會(huì)增加,因而乘于跨中彎矩乘于系數(shù)1.15。同時(shí)跨中彎矩還應(yīng)滿足下列要求:式中、、——分別為調(diào)幅后梁梁端負(fù)彎矩及跨中正彎矩;――按簡(jiǎn)支梁計(jì)算的跨中彎矩。調(diào)幅后豎向恒載作用下跨中彎矩計(jì)算(單位:kN·m)層次梁端彎矩跨度梁間恒載恒載作用下邊跨中跨邊跨中跨邊跨中跨βMl'βMr'βMl'βMr'LLqqAB跨BC跨573.3961.6724.3424.348.102.7032.7411.98200.98-13.424103.32110.5623.8423.848.102.7043.859.28252.68-15.383105.04111.0623.7623.768.102.7043.859.28251.57-15.302105.53111.3823.7023.708.102.7043.859.28251.17-15.24190.70100.3825.8925.898.102.7043.859.28264.08-17.436.2活載作用下內(nèi)力組合活載作用下梁端柱邊剪力序號(hào)梁端彎矩梁間活載跨度梁端剪力邊跨中跨邊跨中跨邊跨中跨邊跨中跨VaVb左Vb右Vc左qqLLVa'Vb'左Vb'右Vc'左59.809.241.141.142.350.848.102.709.108.650.930.93437.6138.046.166.169.344.568.102.7034.8135.715.025.02337.6937.966.166.169.344.568.102.7034.8935.635.025.02237.7037.966.166.169.344.568.102.7034.9035.635.025.02137.5538.106.166.169.344.568.102.7034.7535.775.025.02活載作用下梁端柱邊彎矩序號(hào)梁端彎矩柱邊梁端剪力柱邊梁端彎矩邊跨中跨邊跨中跨邊跨中跨MlMrMlMrVa'Vb'左Vb'右Vc'左Ml'Mr'Ml'Mr'511.699.422.102.109.108.650.930.938.967.261.871.87435.9637.718.608.6034.8135.715.025.0225.5228.787.357.35338.0839.188.328.3234.8935.635.025.0227.6130.277.077.07238.2139.278.318.3134.9035.635.025.0227.7430.367.067.06134.2136.448.878.8734.7535.775.025.0223.7927.507.627.62活載作用下梁端柱邊調(diào)幅后彎矩序號(hào)柱邊梁端彎矩調(diào)幅后柱邊梁端彎矩邊跨中跨邊跨中跨Ml'Mr'Ml'Mr'βMl'βMr'βMl'βMr'58.967.261.871.877.175.811.501.50425.5228.787.357.3520.4223.025.885.88327.6130.277.077.0722.0924.225.665.66227.7430.367.067.0622.1924.295.655.65123.7927.507.627.6219.0322.006.106.10調(diào)幅后豎向活載作用下跨中彎矩計(jì)算(單位:kN·m)層次梁端彎矩跨度梁間恒載活載作用下活載作用下×1.2邊跨中跨邊跨中跨邊跨中跨βMl'βMr'βMl'βMr'LLqqAB跨BC跨AB跨BC跨57.175.811.501.508.102.702.350.8412.78-0.7315.34-0.88420.4223.025.885.888.102.709.344.5654.88-1.7265.86-2.07322.0924.225.665.668.102.709.344.5653.44-1.5064.13-1.81222.1924.295.655.658.102.709.344.5653.36-1.4964.03-1.79119.0322.006.106.108.102.709.344.5656.08-1.9467.30-2.336.3風(fēng)載作用下內(nèi)力組合風(fēng)荷載用下梁端柱邊彎矩序號(hào)梁端彎矩柱邊梁端剪力柱邊梁端彎矩邊跨中跨邊跨中跨邊跨中跨MlMrMlMrVa'Vb'左Vb'右Vc'左Ml'Mr'Ml'Mr'56.193.901.471.471.241.241.091.095.823.591.201.20417.6712.394.674.673.713.713.463.4616.5611.463.813.81329.9621.187.987.986.316.315.915.9128.0719.606.506.50243.1030.7311.5711.579.119.118.578.5740.3728.459.439.43163.4741.3715.5815.5812.9412.9411.5411.5459.5938.1412.7012.70風(fēng)荷載用下跨中彎矩序號(hào)柱邊梁端彎矩跨中彎矩跨中剪力邊跨中跨Ml'Mr'Ml'Mr'邊跨中跨邊跨中跨55.823.591.21.21.1201.241.09416.5611.463.813.812.5503.713.46328.0719.66.56.54.2406.315.91240.3728.459.439.435.9609.118.57159.5938.1412.712.710.73012.9411.54第七章截面設(shè)計(jì)7.1框架梁設(shè)計(jì)以第頂層AB跨框架梁的計(jì)算為例。1、梁的最不利內(nèi)力:經(jīng)以上計(jì)算可知,梁的最不利內(nèi)力如下:跨間:Mmax=286.36KN·m支座A:Mmin=-106.10KN·m,Vmax=178.33KN支座Bl:Mmin=-88.95KN·m,Vmax=172.80KN2、梁正截面受彎承載力計(jì)算:對(duì)于樓面現(xiàn)澆的框架結(jié)構(gòu),梁支座負(fù)彎矩按矩形截面計(jì)算縱筋量。跨中正彎矩按T形截面計(jì)算縱筋數(shù)量。翼緣計(jì)算寬度梁內(nèi)縱向鋼筋選Ⅲ級(jí)熱扎鋼(),砼C30(),,h0=h-a=800-35=765mm。下部跨間截面按單筋T形截面計(jì)算。屬第一類T形截面。實(shí)配鋼筋4Φ22(As=1520mm2)。支座配筋:支座A受壓鋼筋:將下部跨間截面的4Φ22鋼筋伸入支座,作為支座負(fù)彎矩作用下受壓鋼筋,As,=1520mm2。支座A受拉鋼筋:配筋率ρ=As/(b×ho)=394/(300×765)=0.17%最小配筋率ρmin=0.20%As,min=b×h×ρmin=480mm實(shí)配鋼筋4Φ14(615mm)梁斜截面受剪承載力計(jì)算AB跨:當(dāng)ho/b≤4時(shí),V≤0.25×βc×fc×b×ho0.25×βc×fc×b×ho=0.25×1×14331×0.3×0.765=822.3kN≥V=468.9kN截面尺寸滿足要求。0.7×ft×b×ho=0.7×1432.9×0.3×0.765=230.2kN≥V=178.3kN按構(gòu)造配筋:加密區(qū)長(zhǎng)度取1m,梁端加密區(qū)鋼筋8@100,非加密區(qū)鋼筋8@200。其它層梁配筋見下表:層次截面M(KN·m)ξ計(jì)算As,(mm2)實(shí)配As,(mm2)計(jì)算As(mm2)實(shí)配As(mm2)配箍1支座A207.900.0867894Φ18、(1017)加密區(qū)四肢Φ8@100,非加密區(qū)四肢Φ8@200Bl196.230.0817434Φ18、(1017)AB跨間422.460.01915492Φ222Φ25(1741)支座Br54.760.1014394Φ18(1017)加密區(qū)二肢Φ8@100非加密區(qū)二肢Φ8@200BC跨間23.850.0141834Φ14(615.7)2支座A205.460.0857794Φ18(1017)加密區(qū)四肢Φ8@100,非加密區(qū)四肢Φ8@200Bl200.110.0837584Φ18(1017)AB跨間401.830.01814722Φ222Φ25(1741)支座Br47.440.0873774Φ18(1017)加密區(qū)二肢Φ8@100非加密區(qū)二肢Φ8@200BC跨間20.540.0121574Φ14(615.7)3支座A189.250.0787154Φ18(1017)加密區(qū)四肢Φ8@100,非加密區(qū)四肢Φ8@200Bl186.970.0777064Φ18(1017)AB跨間402.470.01814752Φ222Φ25(1741)支座Br43.830.083474Φ18(1017)加密區(qū)二肢Φ8@100非加密區(qū)二肢Φ8@200BC跨間20.640.0121574Φ14(615.7)4支座A170.580.076424Φ18(1017)加密區(qū)四肢Φ8@100非加密區(qū)四肢Φ8@200Bl176.120.0736644Φ18(1017)AB跨間405.660.01814862Φ222Φ25(1741)支座Br40.820.0743234Φ18(1017)加密區(qū)二肢Φ8@100非加密區(qū)二肢Φ8@200BC跨間21.060.0122404Φ14(615.7)5支座A106.100.0434804Φ14(615)加密區(qū)四肢Φ8@100,非加密區(qū)四肢Φ8@200Bl88.950.0364804Φ14(615)AB跨間286.360.012810484Φ20(1256)支座Br34.330.0622704Φ14(615)加密區(qū)二肢Φ8@100非加密區(qū)二肢Φ8@200BC跨間17.210.012404Φ14(615.7)7.2框架柱設(shè)計(jì)2、柱正截面承載力計(jì)算:先以頂層A柱為例,(柱截面寬度:b=400mm柱截面有效高度:h0=600-40=560mm柱的計(jì)算長(zhǎng)度,對(duì)于現(xiàn)澆樓蓋的頂層柱,L0=1.25H=4.875m混凝土軸心抗壓強(qiáng)度設(shè)計(jì)值:fc=14.3N/mm2(1)、最不利組合一:Mmax/N頂層A柱的柱上端彎矩為M=132.81KN·m,柱下端彎矩為M=148.76kN·m,N=342.40KN。1.軸心受壓構(gòu)件驗(yàn)算鋼筋混凝土軸心受壓構(gòu)件的穩(wěn)定

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