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學(xué)位論文原創(chuàng)性聲明本人鄭重聲明:所呈交的學(xué)位論文,是本人在導(dǎo)師的指導(dǎo)下,獨(dú)立進(jìn)行研究工作所取得的成果,除文中已經(jīng)注明引用的內(nèi)容外,本論文不含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫(xiě)過(guò)的作品成果。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體均已在文中以明確方式標(biāo)明,本人完全意識(shí)到本聲明的法律后果由本人承擔(dān)。作者簽名:日期:學(xué)位論文版權(quán)使用授權(quán)書(shū)本學(xué)位論文作者完全了解學(xué)校有關(guān)保障、使用學(xué)位論文的規(guī)定,同意學(xué)校保留并向有關(guān)學(xué)位論文管理部門(mén)或機(jī)構(gòu)送交論文的復(fù)印件和電子版,允許論文被查閱和借閱。本人授權(quán)省級(jí)優(yōu)秀學(xué)士學(xué)位論文評(píng)選機(jī)構(gòu)將本學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存和匯編本學(xué)位論文。本學(xué)位論文屬于1、保密□,在_________年解密后適用本授權(quán)書(shū)。2、不保密√。(請(qǐng)?jiān)谝陨舷鄳?yīng)方框內(nèi)打“√”)作者簽名:2015年月日導(dǎo)師簽名:2015年月日內(nèi)容摘要本工程為華中地區(qū)某公司新建綜合樓。為永久性建筑物,共六層,其余各層為辦公用房,標(biāo)準(zhǔn)層層高3.6m,室內(nèi)外高差為0.4m。場(chǎng)址位于該城市正在建設(shè)的主干道路。主要分為五個(gè)階段:屋面及標(biāo)準(zhǔn)層平面結(jié)構(gòu)布置、風(fēng)荷載和水平地震作用、豎向荷載下框架的內(nèi)力計(jì)算、框架內(nèi)力組合和配筋、繪制施工圖。第一階段是屋面及標(biāo)準(zhǔn)層平面結(jié)構(gòu)布置,構(gòu)件編號(hào),初選構(gòu)件截面尺寸及材料強(qiáng)度等級(jí)。第二階段是風(fēng)荷載和水平地震作用(包括縱荷載)下框架彈性位移驗(yàn)算;風(fēng)荷載作用下框架的內(nèi)力計(jì)算;多遇地震作用下框架的內(nèi)力計(jì)算。第三階段是豎向荷載下框架的內(nèi)力計(jì)算。第四階段是框架內(nèi)力組合及配筋,天面及標(biāo)準(zhǔn)層梁板內(nèi)力計(jì)算及配筋。第五階段是整理計(jì)算書(shū)、抄正、繪制施工圖。關(guān)鍵詞:設(shè)計(jì)結(jié)構(gòu)框架D值法AbstractThisworksforacompanyinCentralChinaanewbuilding.

Forpermanentbuildingsdevelopmenttheforegroundisgood.Compriseofthreeparts:Thearchitecturaldesign,structuredesignandshopschematicdesign.Thefirstpartofdesignisaboutarchitecturaldesign.Accordingtoarchitecturaldesignbasisaswellasarchitecturaldesignbasicprinciple,carriesonthefunctiondistricttothestructure,furtherdeterminestheprojecttheplane,theverticalsurfaceaswellasthesectionplane.Thesecondpartofdesignisaboutstructuraldesign.Mainlyiscarriesonthebeamcolumnsectiondesign.Theconcretestepiscarriesonacrosswiseframethestructurecomputationandthedesign,namelyinthedefinitecomputationdiagramfoundation,throughobtainsthebeamcolumntothehorizontalloadandtheverticalcomputationthemostdisadvantageousendogenicforcecombination,andtakethisasdesignbasisdeterminedthebeamcolumnthesectionsizeandrequiredreinforcementintheareaofcrosssection.Besidestobeamcolumndesign,butalsoneedstodesignastairandaindependentfoundation.Whenendogenicforcecomputationintheverticaldirection,weuseiterationmethod;inthehorizontaldirection,weuseDmethod.Inadditiontothepartscalculatedbyhands,weadoptanarchitecturesoftwarePK-PMtocalculate.Keyworks:designstructureframeDmethod目錄1設(shè)計(jì)說(shuō)明……………………12構(gòu)件估算與結(jié)構(gòu)布置………………………32.1設(shè)計(jì)資料…………………32.2結(jié)構(gòu)選型…………………33框架計(jì)算……………………53.1重力荷載代表值計(jì)算……………………43.11屋面永久荷載標(biāo)準(zhǔn)值(上人)……………………43.12樓面標(biāo)準(zhǔn)值…………43.13屋面及樓面可變荷載標(biāo)準(zhǔn)值………43.14重力荷載標(biāo)準(zhǔn)值……………………43.15樓面活荷載標(biāo)準(zhǔn)值…………………63.16確定框架計(jì)算簡(jiǎn)圖(KJ-12)………63.2橫向框架計(jì)算………………73.21、梁線剛度計(jì)算………………………73.22、柱側(cè)移剛度計(jì)算……………………73.23、自振周期計(jì)算………………………83.24、橫向地震作用計(jì)算…………………93.25、水平地震作用下框架內(nèi)力計(jì)算……………………93.26、風(fēng)荷載作用下框架結(jié)構(gòu)內(nèi)力和側(cè)移計(jì)算…………123.3、縱向框架計(jì)算…………163.31、梁線剛度計(jì)算……………………163.32、柱側(cè)移剛度計(jì)算…………………163.33、自振周期計(jì)算………………………183.34、橫向地震作用計(jì)算………………19水平地震作用下框架內(nèi)力計(jì)算……………20風(fēng)荷載作用下框架結(jié)構(gòu)側(cè)移計(jì)算…………216、橫向框架豎向荷載內(nèi)力計(jì)算………………226.1計(jì)算單元………………226.2荷載計(jì)算………………247、框架結(jié)構(gòu)內(nèi)力組合…………418、主體結(jié)構(gòu)截面設(shè)計(jì)…………588.1、框架柱…………………588.2、框架梁…………………638.3、樓梯設(shè)計(jì)………………688.3.1、樓梯板設(shè)計(jì)…………738.3.2平臺(tái)板設(shè)計(jì)…………808.3.3、平臺(tái)梁設(shè)計(jì)…………888.4、板的設(shè)計(jì)………………888.4.1、單向板配筋………………………898.5、次梁的設(shè)計(jì)……………908.6、基礎(chǔ)……………………95結(jié)束語(yǔ)…………………………97參考文獻(xiàn)………………………99設(shè)計(jì)說(shuō)明1、工程名稱:某公司綜合辦公樓2、工程概況:該工程場(chǎng)址位于該城市正在建設(shè)的主干道路,紅線范圍50m×40m,總建筑面積為4612.17平方米,層數(shù)為6層。該工程采用鋼筋混凝土框架結(jié)構(gòu),抗震設(shè)防烈度為7度。建筑總高29.4米。3、基本設(shè)計(jì)資料:=1\*GB2⑴、基本風(fēng)壓:0.35kN/m2,設(shè)計(jì)基本地震加速度為0.1g,II類場(chǎng)地,設(shè)計(jì)地震分組為第三組=2\*GB2⑵、基本雪壓:0.50kN/m2,雪荷載準(zhǔn)永久值分區(qū)III區(qū)=3\*GB2⑶、地震烈度:7度遠(yuǎn)震=4\*GB2⑷、地面粗糙度類別:B類2構(gòu)件估算及布置2.1框架梁、柱的截面尺寸估算2.1.1框架梁估算縱向主梁最大跨度l1=4500mmh=(1/8~1/12)×l1=(1/8~1/12)×4500mm=(563~375)mm取500mmb=(1/2~1/3)×h=(1/2~1/3)×500mm=(250~167)mm取200mm橫向主梁最大跨度l2=6600mmh=(1/8~1/12)×l2=(825~550)mm取700mmb=(1/2~1/3)×h=(360~240)mm取300mm次梁最大跨度l2=6600mmh=(1/12~1/18)×l2=(550~367)mm取450mmb=(1/2~1/3)×h=(225~150)mm取200mm考慮到走廊處橫向主梁跨度較小,故取其截面為200mm×500mm各梁截面尺寸如下表:各梁截面尺寸估算表表2.1橫向主梁KL1(mm×mm)橫向主梁KL2(mm×mm)橫向主梁KL3(mm×mm)次梁L1、L2(mm×mm)300×700200×500200×500200×4502.1.2框架柱計(jì)算框架高度3.6×5+5=23m,烈度為8度查《構(gòu)筑物抗震設(shè)計(jì)規(guī)范》得該框架結(jié)構(gòu)抗震等級(jí)為二級(jí),框架柱軸壓比限值為〔μN(yùn)〕=0.8采用C30混凝土,由于N=βFgn中柱和邊柱的負(fù)荷面積分別是4.5×6.75m2和3.3×6.75m2所以中柱Ac≥βFgn/μfc=1.25×4.5×6.75×15×103×6/(0.8×14.3)=298705mm2邊柱Ac≥βFgn/μfc=1.25×3.3×6.75×15×103×6/(0.8×14.3)=227813mm2根據(jù)以上計(jì)算結(jié)果,并以安全起見(jiàn),標(biāo)準(zhǔn)層統(tǒng)一取600×600mm2,首層統(tǒng)一取800×800mm22.2屋(樓)蓋的結(jié)構(gòu)平面布置圖圖2-1屋(樓)蓋平面布置圖2.3框架計(jì)算簡(jiǎn)圖底層高h(yuǎn)取5m,其他層高3.6m圖2-2框架計(jì)算簡(jiǎn)圖3屋(樓)蓋設(shè)計(jì)3.1荷載計(jì)算3.1.1辦公室、走廊荷載計(jì)算⑴辦公室恒載標(biāo)準(zhǔn)值25mm厚水泥砂漿找平層0.025×20=0.5kN/m2120mm厚現(xiàn)澆鋼筋混凝土板0.12×25=3.0kN/m215mm厚板底紙筋灰抹灰0.015×16=0.24kN/m2小計(jì)3.74kN/m2⑵活載標(biāo)準(zhǔn)值走道2.5kN/m2辦公室2.0kN/m2設(shè)計(jì)值:走道g=1.2×3.74=4.49kN/m2q=1.4×2.5=3.5kN/m2g+q=7.99kN/m2g+q/2=6.24kN/m2辦公室g=1.2×3.74=4.49kN/m2q=1.4×2.0=2.8kN/m2g+q=7.29kN/m2g+q/2=5.89kN/m23.1.2衛(wèi)生間荷載計(jì)算⑴恒載標(biāo)準(zhǔn)值陶瓷錦磚0.12kN/m220mm厚防水砂漿找平層0.02×20=0.4kN/m2120mm厚鋼筋混凝土板自重0.12×25=3kN/m215mm厚板底紙筋灰抹灰0.015×16=0.24kN/m2小計(jì)3.76kN/m2⑵活載標(biāo)準(zhǔn)值活載標(biāo)準(zhǔn)值2.5kN/m2設(shè)計(jì)值:g=1.4×2.5=3.5kN/m2q=1.2×3.76=4.51kN/m2g+q/2=6.26kN/m2g+q=8.01kN/m23.1.3屋面荷載計(jì)算(不上人屋面)⑴恒載標(biāo)準(zhǔn)值180mm厚磚砌架空隔熱層1.1kN/m2三氈四油上鋪綠豆砂0.4kN/m225mm厚1:3水泥砂漿找平層0.025×20=0.5kN/m21:6水泥焦渣找坡(最薄30mm)0.085×10=0.85kN/m2100mm厚混凝土板自重0.1×25=2.5kN/m215mm厚板底紙筋灰抹灰0.015×16=0.24kN/m2小計(jì)5.59kN/m2⑵活載標(biāo)準(zhǔn)值標(biāo)準(zhǔn)值:qk=0.5kN/m2設(shè)計(jì)值:g=1.2×5.59=6.71kN/m2q=1.4×0.5=0.7kN/m2g+q/2=7.06kN/m2g+q=7.41kN/m2q/2=0.35kN/m23.2彎矩計(jì)算本設(shè)計(jì)中l(wèi)o1/lo2<3,所以只有雙向板,設(shè)計(jì)時(shí)按彈性理論方法設(shè)計(jì),跨中最大彎矩的情況,荷載分布情況可以分解為滿布荷載q+q/2及間隔布置±q/2兩種情況,請(qǐng)一種情況可以近似認(rèn)為各區(qū)格板都固定支承在中間支承上,對(duì)后一種情況可近似認(rèn)為在中間支承處都是簡(jiǎn)支的,支座最大負(fù)彎矩可近似按活載滿布求得,即支座g+q下的支座彎矩,考慮泊松比的影響,取ν=0.2,查表“雙向板按彈性分析的系數(shù)表”(見(jiàn)《混凝土結(jié)構(gòu)》中冊(cè))對(duì)各區(qū)格樓蓋彎矩進(jìn)行計(jì)算,列于表3.1、3.2中:樓蓋彎矩表3.1區(qū)格項(xiàng)目B1B2B3B4lo1(m)2.4lo2(m)4.5lo1/lo20.7330.7330.7330.533m1(kN·m)(0.0402+00.2×0..0183)×5.899×3.322+(0.06441+0.22×0.03310)×1.4××3.32=3.899(0.0337+00.2×0..0104)×5.899×3.322+(0.06441+0.22×0.03310)×1.4××3.32=3.377(0.0305+00.2×0..0124)×5.899×3.322+(0.06441+0.22×0.03310)×1.4××3.32=3.199(0.0539+00.2×0..0096)×6.422×2.422+(0.09117+0.22×0.01198)×1.755×2.422=3.022m2(kN·m)(0.0402×00.2+0..0183)×5.899×3.322+(0.06441×0.22+0.03310)×1.4××3.32=2.366(0.0337×00.2+0..0104)×5.899×3.322+(0.06441×0.22+0.03310)×1.4××3.32=1.777(0.0305×00.2+0..0124)×5.899×3.322+(0.06441×0.22+0.03310)×1.4××3.32=1.855(0.0539×00.2+0..0096)×6.422×2.422+(0.09117×0.22+0.01198)×1.755×2.422=1.144m1’(kN·m)-0.0956××7.29××3.32=-7.559-0.0758××7.29××3.32=-6.002-0.0713××7.29××3.32=-5.666-0.1150××7.29××2.42=-5.229m2’(kN·m)-0.0752××7.29××3.32=-5.997-0.0572××7.29××3.32=-4.554-0.0566××7.29××3.32=-4.449-0.0785××7.29××2.42=-3.661m1”(kN·m)-7.59-6.02-5.66-5.29m2”(kN·m)-5.97-4.54-4.49-3.61續(xù)表3.1區(qū)格項(xiàng)目B5B6B7lo1(m)lo2(m)lo1/lo20.5330.7330.733m1(kN·m)(0.0390+00.2×0..0050)×6.422×2.422+(0.09117+0.22×0.01198)×1.755×2.422=2.444(0.0402+00.2×0..0183)×6.266×3.322+(0.06441+0.22×0.03310)×1.755×3.322=4.333(0.0337+00.2×0..0104)×6.266×3.322+(0.06441+0.22×0.03310)×1.755×3.322=3.788m2(kN·m)(0.0390×00.2+0..0050)×6.422×2.422+(0.09117×0.22+0.01198)×1.755×2.422=3.455(0.0402×00.2+0..0183)×6.266×3.322+(0.06441×0.22+0.03310)×1.755×3.322=2.633(0.0337×00.2+0..0104)×6.266×3.322+(0.06441×0.22+0.03310)×1.755×3.322=1.777m1’(kN·m)-0.0819××7.99××2.42=-3.777-0.0956××8.01××3.32=-8.334-0.0758××8.01××3.32=-6.661m2’(kN·m)-0.0571××7.99××2.42=-2.336-0.0733××8.01××3.32=-6.774-0.0572××8.01××3.32=-4.999m1”(kN·m)-3.77-8.34-6.61m2”(kN·m)-2.36-6.74-4.99屋蓋彎矩圖表3..2區(qū)格項(xiàng)目B1B2B3B4lo1(m)2.4lo2(m)4.5lo1/lo20.7330.7330.7330.533m1(kN·m)(0.0402+00.2×0..0183)×7.066×3.322+(0.06441+0.22×0.03310)×0.355×3.322=3.644(0.0337+00.2×0..0104)×7.066×3.322+(0.06441+0.22×0.03310)×0.355×3.322=3.022(0.0305+00.2×0..0124)×7.066×3.322+(0.06441+0.22×0.03310)×0.355×3.322=2.800(0.0539+00.2×0..0096)×7.066×2.422+(0.09117+0.22×0.01198)×0.355×2.422=2.466m2(kN·m)(0.0402×00.2+0..0183)×7.066×3.322+(0.06441×0.22+0.03310)×0.355×3.322=2.199(0.0337×00.2+0..0104)×7.066×3.322+(0.06441×0.22+0.03310)×0.355×3.322=1.488(0.0305×00.2+0..0124)×7.066×3.322+(0.06441×0.22+0.03310)×0.355×3.322=1.599(0.0539×00.2+0..0096)×7.066×2.422+(0.09117×0.22+0.01198)×0.355×2.422=0.900m1’(kN·m)-0.0956××7.41××3.32=-7.771-0.0758××7.41××3.32=-6.112-0.0713××7.41××3.32=-5.775-0.1150××7.41××2.42=-4.991m2’(kN·m)-0.0773××7.41××3.32=-6.224-0.0572××7.41××3.32=-4.662-0.0566××7.41××3.32=-4.557-0.0785××7.41××2.42=-3.335m1”(kN·m)-7.71-6.12-5.75-4.91m2”(kN·m)-6.24-4.62-4.57-3.35續(xù)表3.2區(qū)格項(xiàng)目B5B6B7lo1(m)lo2(m)lo1/lo20.5330.7330.733m1(kN·m)(0.0390+00.2×0..0050)×7.066×2.422+(0.09117+0.22×0.01198)×0.355×2.422=1.8223.643.02m2(kN·m)(0.0390×00.2+0..0050)×7.066×2.422+(0.09117×0.22+0.01198)×0.355×2.422=0.6002.191.48m1’(kN·m)-0.0819××7.41××2.42=-3.550-7.71-6.12m2’(kN·m)-0.0571××7.41××2.42=-2.444-6.24-4.62m1”(kN·m)-3.50-7.71-6.12m2”(kN·m)-2.44-6.24-4.623.3配筋計(jì)算樓板選用φ8鋼筋筋作為受力主主筋,采用C30混凝土,fy=210NN/mm2lo1(短跨)方向向跨中截面的的ho1=h-200=120--20=1000mmlo2(長(zhǎng)跨)方向跨中中截面的ho2=h-300=120--30=900mm支座截面處ho==100mmm截面設(shè)計(jì)用的彎矩矩:中間跨和和跨中截面及及中間支座截截面減小20%,邊跨中截截面及樓板邊邊緣算起第二二個(gè)支座截面面lb/lo<1.5時(shí),減小20%,樓板的角角區(qū)格不折減減。為便于計(jì)計(jì)算,近似取取γ=0.95,As=M/0..95fyho樓面配筋計(jì)算結(jié)果果及實(shí)際配筋筋列于表3.3中樓面計(jì)算及配筋表3.3跨中截面ho(mm)M(kN·m)As(mm2/m)配筋實(shí)際B1lo1方向1003.89195φ8@120419lo2方向902.36131φ8@120419B2lo1方向1000.8×3.377=2.700135φ8@120419lo2方向901.7799φ8@120419B3lo1方向1000.8×3.199=2.555128φ8@120419lo2方向900.8×1.855=1.48882φ8@120419B4lo1方向1003.02151φ8@120419lo2方向901.1463φ8@120419B5lo1方向1000.8×2.444=1.95598φ8@120419lo2方向900.8×3.455=2.766154φ8@120419B6lo1方向1004.33217φ8@120419lo2方向902.63146φ8@120419B7lo1方向1000.8×3.788=3.022151φ8@120419lo2方向902.0111φ8@120419支座1-2100-0.8×5.997=-4..78240φ8@1204192-3lo1方向100-0.8×7.559=-6..07304φ8@120419lo2方向100-0.8×5.997=-4..78240φ8@1204192-4100-0.8×6.002=-4..82242φ8@1204192-5100-0.8×6.002=-4..82242φ8@1204192-6100-0.8×6.774=-5..39270φ8@1204193-3100-0.8×4.449=-3..59180φ8@1204193-5100-0.8×5.666=-4..53227φ8@1204193-7100-0.8×4.999=-3..99200φ8@1204194-5100-0.8×3.661=-2..89145φ8@1204194-7100-0.8×6.661=-5..29265φ8@1204196-7100-0.8×8.334=-6..67334φ8@120419邊緣支座B1lo1方向100-7.59380φ8@120419lo2方向100-5.97299φ8@120419B2lo1方向100-4.54228φ8@120419lo2方向100-5.29265φ8@120419B4lo1方向100-8.34418φ8@120419lo2方向100-3.61181φ8@120419B6lo2方向100-6.74338φ8@120419B7lo2方向100-4.99250φ8@1204190.45ft/ffy=0.455×1.433/210==0.3066%>0.2%,取ρmin=0..306%ρ=As/bho==419/11000×1100=0..419%>ρmin·h//ho=0.3006%×1220/90==0.4088%∴合格屋面配筋計(jì)算:樓板選用φ8鋼筋筋作為受力主主筋,采用C30混凝土,fy=210NN/mm2lo1(短跨)方向向跨中截面的的ho1=h-220=1000-20=880mmlo2(長(zhǎng)跨)方向向跨中截面的的ho2=h-330=1000-30=770mm支座截面處ho==80mm屋面計(jì)算及配筋表3.4跨中截面ho(mm)M(kN·m)As(mm2/m)配筋實(shí)際B1lo1方向803.64228φ8@160314lo2方向702.19157φ8@160314B2lo1方向800.8×3.022=2.422152φ8@160314lo2方向701.48106φ8@160314B3lo1方向800.8×2.8==2.24140φ8@160314lo2方向700.8×1.599=1.27791φ8@160314B4lo1方向802.46154φ8@160314lo2方向700.9064φ8@160314B5lo1方向800.8×1.822=1.46691φ8@160314lo2方向700.8×0.6==0.4834φ8@160314B6lo1方向803.64228φ8@160314lo2方向702.19157φ8@160314B7lo1方向800.8×3.022=2.422152φ8@160314lo2方向701.48106φ8@160314支座1-280-0.8×6.224=-4..99313φ8@1005032-3lo1方向80-0.8×4.662=-3..70232φ8@100503lo2方向80-0.8×6.112=-4..90307φ8@1005032-480-0.8×6.112=-4..90307φ8@1005032-580-0.8×6.112=-4..90307φ8@1005032-680-0.8×6.224=-4..99313φ8@1005033-380-0.8×4.557=-3..67230φ8@1005033-580-0.8×5.775=-4..60288φ8@1005033-780-0.8×4.662=-3..70232φ8@1005034-580-0.8×3.335=-2..68168φ8@1005034-780-0.8×6.112=-4..90307φ8@1005036-780-0.8×7.771=-6..17387φ8@100503邊緣支座B1lo1方向80-7.71483φ8@100503lo2方向80-6.24391φ8@100503B2lo1方向80-4.91308φ8@100503lo2方向80-4.26289φ8@100503B4lo1方向80-7.71483φ8@100503lo2方向80-3.35210φ8@100503B6lo2方向80-6.24391φ8@100503B7lo2方向80-4.62289φ8@1005030.45ft/ffy=0.455×1.433/210==0.3066%>0.2%,取ρmin=0..306%ρ=As/bho==314/11000×1100=0..393%>ρmin·h//ho=0.3006%×1000/80==0.3833%∴合格4次梁設(shè)計(jì)4.1樓蓋次梁設(shè)設(shè)計(jì)4.1.1荷載計(jì)計(jì)算⑴衛(wèi)生間恒載設(shè)計(jì)值值:板傳來(lái)的面面荷載g=44.51×22=9.022kN/mm2q=1..4×2.55×2=7kN/m22p1’=(g+q)×lo1/2=((9.02++7)×3..3/2=226.43kN/m(梯形荷載載)次梁自重0.22×(0.45--0.12)×25×11.2=1..98kNN/m20mm厚厚次梁粉刷0.002×(0.45--0.12)×20×11.2=0..32kNN/m小計(jì)p=2.33kN/mm(均布荷載載)次梁承重為為p1’與p的疊加⑵辦公室板傳來(lái)的面荷載g=4.449×2=88.98kkN/m2q=1..42×2..0×2=55.6kNN/m2p2’==(g+q)×lo1/2=((8.98++5.6)××3.2/22=24.006kN//m(梯形荷載載)p=2..3kN//m(均布荷載載)次梁承重為p2’’與p的疊加4.1.2彎矩計(jì)計(jì)算及配筋⑴對(duì)次梁L2其受力情況如下圖44-1圖4-1次梁LL2上受力圖跨跨中最大彎矩矩由結(jié)構(gòu)力學(xué)學(xué)求解器得分分別為(kN·m):334.70,,16.844,20.588,20.558,16..84,344.70支支座負(fù)彎矩為為(kN·m):--45.122,-32.882,-36.992,-32.882,-45.112取取其最大值M=-445.12kN·m其其剪力如圖4-2所示:圖4-2次梁LL2剪力圖(kN)取其最大值V==49.477kN次梁采用C30混混凝土,用HRB3335鋼筋受彎筋筋,箍筋HPB2335ho=450-25--10=4115mmαs=45.12×1106/1.0××14.3××200×44152=0.0992ξ=0.097γs=1-0.5ξ==1-0.55×0.0997=0.9952As=M/γsfyhho=45.112×1066/0.9552×3000×415==381mmm2選4Φ12,As=452mmm2As/bho=4522/200××415=00.545%%>ρmin·h//ho=0.455ft/fy·h/ho=0.45×1..43×4550/3000×415==0.2333%>0.2%h/hoo=0.2%%×450//415=00.217%%∴滿足最小配筋率要要求斜斜截面承載力力驗(yàn)算:hhw=ho-hf=415--120=2295mmmhhw/b=2995/4000=1.4775<40.25βcfccho=0.255×1.0××14.3××200×4415=2996725N=2966.725kN>Vmax=49.447kN∴截面合格00.7ftbho=0.7××1.43××200×4415=833.083kN>Vmax∴按構(gòu)造配筋ρsv,min=0.244ft/fyv=0.224×1.443/2100=0.1663%選選φ8@2000∴ρsv=2×550.3/2200×200=00.25%>>0.1633%>0.2%∴合格⑵對(duì)次梁L1圖4-3次梁LL1受力圖由結(jié)構(gòu)力學(xué)求解器器得:跨跨中最大彎矩矩分別為(kN·m):34.72,166.77,220.77,,19.600,19.552,21..06,155.99,338.45支座最大負(fù)彎矩分分別為(kN·m):-45.08,--32.988,-36.330,-35.114,-36.447,-32.331,-47.559∴Mmax=-47..59kNN·m其剪力圖如如圖4-4所示:圖4-4次梁LL1剪力圖(kN·m)∴Vmax=52..39kNNαs=47.59×1106/1.0××14.3××200×44152=0.0997γs=0.952As=M/γsfyhho=47.559×1066/0.9552×3000×415==402mmm2選4Φ12,As=452mmm2As/bho=4522/200××415=00.545%%>ρmin·h//ho=0.455ft/fy·h/ho=0.45×1..43×4550/3000×415==0.2333%>0.2%h/hoo=0.2%%×450//415=00.217%%∴滿足最小配筋率要要求斜斜截面承載力力驗(yàn)算:hhw=ho-hf=415--120=2295mmmhhw/b=2995/4000=1.4775<40.25βcfccho=0.255×1.0××14.3××200×4415=2996725N=2966.725kN>>Vmax=522.39kkN∴截面合格00.7ftbho=0.7××1.43××200×4415=833.083kN>Vmax∴按構(gòu)造配筋ρsv,min=0.244ft/fyv=0.224×1.443/2100=0.1663%選φ8@200∴ρsv=2×50..3/2000×200==0.25%%>0.1633%>0.2%4.2屋蓋次梁設(shè)設(shè)計(jì)板傳來(lái)的面荷載:g=66.71×22=13.442kN//m2q=0..7×2=11.4kNN/m2p3’=(g+q)×lo11/2=(113.42++1.4)××3.3/22=24.445kN//m(梯形荷載載)次梁自重0.22×(0.45--0.1)×25×11.2=2..1kN//m20mm厚次梁粉粉刷0.02××(0.45--0.1)×20×11.2=0..17kNN/m小計(jì)p=22.27kkN/m(均布荷載載)次梁承重為p3’’與p的疊加與樓板荷載相差不不大,可按樓樓板次梁配筋筋5樓梯設(shè)計(jì)圖5-1標(biāo)準(zhǔn)層層樓梯平面布布置圖5.1標(biāo)準(zhǔn)層樓梯梯段設(shè)計(jì)混凝土采用C300,板采用鋼鋼筋HPB2335,梁縱筋采采用HRB3335,樓梯間尺尺寸為6600mmm×45000mm,現(xiàn)澆樓梯梯,踏步尺寸寸為150mmm×300mmm,取板厚h=1200mm,tanα=150//300=00.5,cosα=0.89945.1.1標(biāo)準(zhǔn)層層樓梯段板的的荷載計(jì)算(取1m寬板帶)⑴恒載標(biāo)準(zhǔn)值30mm厚厚水磨石面層層(0.3+00.15)×0.65//0.3=00.98kkN/m三角形踏步步0.55×0.3×0.15×25/0..3=1.888kN//m120mmm厚混凝土斜斜板0.12××25/0..894=33.36kkN/m板底抹灰0..02×17/0..894=00.38kkN/m小計(jì)gk=6.6kN/m⑵活載標(biāo)準(zhǔn)值qk=2.5kN/m221m寬板帶帶qqk=2.5kN/mg+q=11.2gk+1.44qk=1.22×6.6+11.4×2.5=111.42kN/mg+q=11.35gkk+1.4×0.7qk=1.335×6.6+11.4×0.7×2.5=111.36kN/m∴活載起控制作用,g+q=111.42kN/m5.1.2內(nèi)力計(jì)計(jì)算及配筋平臺(tái)板的計(jì)算跨度度lo=3.3mm跨中彎矩:M=pplo2/10=111.42××3.32/10=112.44kN·m配筋計(jì)算:ho=h-as=1220-20==100((mm)αs=12.44×1106/1.0×14.3×1000×1002=0.0887ξ=0.0911γs=1-0.5ξ==1-0.55×0.09911=0..954As=M/γsfyhho=21.444×1066/0.9554×2100×100==621mmm2選φ10@120,AAs=6544mm2ρ=As/bho==654/11000×1100=0..654%ρmin=max(0.45fft/fy,0.2%)=0.2772%ρ>ρmin·h/hoo=0.2722%×120/1100=0..327%∴合格5.2標(biāo)準(zhǔn)層平臺(tái)臺(tái)板計(jì)算設(shè)平臺(tái)板厚80mmm,取1m寬板帶計(jì)算算5.2.1荷載載計(jì)算⑴恒載標(biāo)準(zhǔn)值平臺(tái)自重0.08××25×1=2kNN/m水磨石面層層00.65kkN/m20mm厚厚板底抹灰0.02××17=0..34kNN/m小計(jì)gk=2.999kN/mm⑵活載標(biāo)準(zhǔn)值qqk=2.5kN/mg+q=1.2ggk+1.4qqk=1.22×2.999+1.4××2.5=77.09kkN/mg+q=11.35gkk+1.4××0.7qkk=1.335×2.999+1.44×0.7××2.5=66.49kkN/m∴可變荷載起控制作作用5.2.2內(nèi)力力計(jì)算及配筋筋平臺(tái)的計(jì)算跨度::lo=2.4×0.5×0.2+00.12/22=2.366m跨中彎矩:M=pplo2/10=77.09×2.362/10=33.95kkN·mho=h-as=1220-20==100((mm)αs=3.95×1006/1.0×14.3×1000×602=0.0777ξ=0.0080γs=1-0.5ξ==1-0.55×0.00080=0..960As=M/γsfyhho=3.955×106/0.9660×2100×60=3327mmm2選φ8@150,Ass=3355mm2ρ=As/bho==335/11000×660=0.6654%ρmin=max(0.45fft/fy,0.2%)=0.3006%ρ>ρmin·h/hoo=0.3066%×80/600=0.4008%分布鋼筋配筋率不不宜小于0.15%,且不宜小小于單位寬度度上受力鋼筋筋截面面積的的15%As=0.15%×11000×80=12200mmm2>0.15××335=550.25mm2選用φ8@2500As=201mm225.3平臺(tái)梁設(shè)計(jì)計(jì)平臺(tái)梁尺寸取2000mm×350mmm5.3.1荷載載計(jì)算⑴恒載標(biāo)準(zhǔn)值梁自重0.22×(0.35--0.08)×25=1..25kNN/m梁側(cè)粉刷0.022×(0.35--0.08)×2×17=0..18kNN/m平平臺(tái)板傳來(lái)2.99××2.4/22=3.599kN/mm樓樓梯板傳來(lái)6.6×3.3/22=10.889kN//m⑵活載標(biāo)準(zhǔn)值gk=2..5×(3.3×0.5+22.4×0.5)=7.133kN/mmg+q=11.2gk+1.4qqk=1.22×15.911+1.4××7.13==29.077kN/mmg+q=11.35gkk+1.4×0.7qk=1.335×15.911+1.4××0.7×7.13==28.477kN/mm由此知可變變荷載起控制制作用,取g+q=229.07kN5.3.2內(nèi)力力計(jì)算及配筋筋計(jì)算跨度lo==1.05lln=1.055×(4.5-00.24)=4.477m彎矩設(shè)計(jì)值M==plo2/8=299.07×4.472/8=722.61kkN·m最大剪力設(shè)計(jì)值V=plnn/2=299.07×(4.5-00.24)/2=611.91kkN截面按倒L形計(jì)算算bf=b+5hhf’=200++5×80=6000mmM=α1fcbff’hf’(ho-hf’/2)=11.0×14.3×600×80×(315-880/2)××10-6=188.766kN·m>M=72..61kNN·m∴屬于第一類截面αs=72.61×1106/1.0×14.3×600×3152=0.0885ξ=0.089γs=1-0.5ξ==1-0.55×0.0889=0.9955As=M/γsfyhho=72.661×1066/0.9555×3000×315==804mmm2選4Φ16,As=804mmm2ρ=As/bho==804/2200×3115=1.228%ρ>ρmin=max(0.45fft/fy,0.2%)·h/ho=0.2338%∴合格5.3.3斜截截面配筋驗(yàn)算截面尺寸hw=ho-hf=3315-800=235mmhw/bb=235//200=11.175<<40.255βcfcho=0.255×1.0××14.3××200×3315=2225.23kN>Vmax=61.991kN∴截面合格0.7fftbho=0.7××1.43××200×3315=633.06kkN>Vmax∴按構(gòu)造配筋ρsv,min=0.244ft/fyv=0.224×1.443/2100=0.1663%選φ8@250ρsv=2×50..3/2000×250==0.2022%>0.1633%∴滿足5.4底層樓梯設(shè)設(shè)計(jì)平面布置如圖5--2圖5-2底層樓樓梯明面布置置圖地層踏步尺寸取1150mm××300mmm首層樓梯的平臺(tái)處處凈高=1.8++0.6-00.35-00.02=22.13m>>2m樓梯下的凈高=11.8+0..6+0.88-0.022=3.188m>2.2m∴符合房屋建筑學(xué)的的規(guī)定其梯段板、平臺(tái)板板、平臺(tái)梁的配配筋取與標(biāo)準(zhǔn)準(zhǔn)層相同6水平地震作用下框框架分析6.1荷載計(jì)算6.1.1計(jì)算跨跨度橫向首層:66000-800==5800mm(邊跨)2400-8000=16000mm(中跨)橫向標(biāo)準(zhǔn)層:6600--600=66000mmm(邊跨)24000-600==1800mm(中跨)縱向首層:45000-800==3700mm45000-600==3900mm6.1.2屋(樓樓)蓋荷載計(jì)計(jì)算樓面恒載標(biāo)準(zhǔn)值(4.5×8+0.224)×(15.6++0.24)×3.76==2158..40kNN屋面恒載標(biāo)準(zhǔn)值(4.5×8+0.224)×(15.6++0.24)×5.59==3208..89kNN女兒墻(1.2mm高,0.2m寬,含邊長(zhǎng)0.2m的壓頂,0.02m的女兒墻兩兩側(cè)粉刷)(4.5×8+15..6)×2×1.2×(0.2×5.5+00.02×17×2)+(4.5×8+15..6)×0.2×0.2×25×2=3233.64kkN6.1.3梁的荷荷載計(jì)算頂層次梁LL100.2×(0.45--0.1)×25×3.9×6+0.002×(0.45--0.1)×3.9×20×2×6=47..50kNN次梁L20.2×(0.45--0.1)×25×3.9×8+0.002×(0.45--0.1)×3.9×20×2×8=63..34kNN縱向框架梁KL30.2×(0.5-00.1)×25×3.9×16+0..02×(0.5-00.1)×20×3.9×16×2=1444.77kkN橫向框架梁KL10.3×(0.7-00.1)×25×6.0×9×2+0.002×(0.7-00.1)×20×6.0×9×2×2=5377.84kkN橫向框架梁KL20.22×(0.5-00.1)×25×1.8×9+0.002×(0.5-00.1)×20×1.8×9×2=37..58kNN小計(jì)831..03kNN標(biāo)準(zhǔn)層次梁L100.2×(0.45--0.12)×25×3.9×6+0.002×(0.45--0.12)×3.9×20×2×6=44..79kNN次梁L20.2×(0.45--0.12)×25×3.9×8+0.002×(0.45--0.12)×3.9×20×2×8=59..72kNN縱向框架梁KL30.2×(0.5-00.12)×25×3.7×16+0..02×(0.5-00.12)×20×3.7×16×2=1300.48kkN橫向框架梁KL10.3×(0.7-00.12)×25×6.0×9×2+0.002×(0.7-00.1)×20×6.0×9×2×2=5199.91kkN橫向框架梁KL20.22×(0.5-00.12)×25×1.6×9+0.002×(0.5-00.12)×20×1.6×9×2=31..74kNN小計(jì)763..94kNN6.1.4墻體荷荷載計(jì)算外墻厚240mmm,采用瓷磚磚貼面,內(nèi)墻墻厚120mm,內(nèi)外墻均均采用粉煤灰灰空心砌塊砌砌筑單位面積外墻體重重為7.0×0.24==1.68kN/m22單位面積內(nèi)墻體重重為7.0×0.12==0.84kN/m22單位面積外墻貼面面重為0..5kN//m2單位面積外墻內(nèi)面面抹灰為0.022×20=0..4kN//m2單位面積內(nèi)墻雙面面抹灰為0.022×20×2=0.88kN/mm2首層縱向內(nèi)墻墻重(0.84++0.8)×3.7×(5-0.5)×16=4336.90kN橫向KL1內(nèi)墻重(0.84++0.8)×5.8×(5-0.7)×7×2=5722.62kkN縱向外墻重(1.68++0.5+00.4)×3.7×(5-0.5)×16=6887.31kN橫向KL1外墻重(1.68++0.5+00.4)×5.8×(5-0.77)×4=2577.38kkN橫向KL2外墻重(1.68++0.5+00.4)×1.6×(5-0.5)×2=37..15kNN小計(jì)11991.336kN標(biāo)準(zhǔn)層縱向內(nèi)內(nèi)墻重(0.84++0.8)×3.9×(3.6-00.5)×16=3117.24kN橫向KL1內(nèi)墻重(0.84++0.8)×6×(3.6-00.7)×7×2=3999.50kkN縱向外墻重(1.68++0.5+00.4)×3.9×(3.6-00.5)×16=4999.08kN橫向KL1外墻重(1.68++0.5+00.4)×6×(3.6-00.7)×4=1799.57kkN橫向KL2外墻重(1.68++0.5+00.4)×1.8×(3.6-00.5)×2=28..79kNN小計(jì)11424.118kN6.1.5柱自重重計(jì)算標(biāo)準(zhǔn)層柱自重0..6×0.6×3.6×25×4×9=11666.4kkN地層柱自重00.8×0.8×5×25×4×9=28880kN6.1.7樓梯荷荷載計(jì)算樓梯斜段重44.5×3.3×2×6.6=1196.022kN樓梯休息平臺(tái)重4.55×2.4×2.99==32.299kN樓梯段梁重(1.25×4.5+00.18×4.5)×2=12..87kNN6.1.8荷載匯匯總⑴頂層重力荷載代表表值包括:屋屋面恒載+縱橫梁自重+半層柱自重+半層墻體自自重+女兒墻自重重屋面荷載Q1=32088.89kkN頂層梁自重QQ2=931..03kNN頂層柱自重QQ3=11666.4kNN頂層墻自重QQ4=12866.93kkN女兒墻自重QQ5=323..64kNNQ66=Q1+Q2+Q5=43633.56kkNQ77=Q3+Q4=24533.33kkNG66=Q6+0.5×Q7=43633.56+00.5×2453..33=55590.233kN⑵其他層重力荷載代代表值包括::樓面恒載+縱橫梁自重+樓面上下各各半層柱及墻墻體自重+50%樓面活載樓面荷載Q1’=21588.40kkN樓面梁自重QQ2’=797..65kNN柱自重Q3’=11666.4kNN墻自重Q4’=12866.93kkN樓梯荷載Q5’=196..02+322.29+112.87==241.118kN樓面活載Q6’=2.5×(36+0..24)×2.4+(4.5+00.12)×(6.6+00.12)×2.5+22.0×(36+0..24)×(6.6+00.12)+2.0×(31.5++0.12)×(6.6+00.12)=12077.09kkNQ7’=Q1’+Q2’’=29556.05kNQ88’=Q3’+Q4’+Q5’=26944.51kkNG55=Q7’+0.5×(Q8’+Q7)+0.5×Q6’=2956.055+0.5××(2694..51+24453.333)+0.55×1207..09=6133.522kNG22=G3=G4=Q7’+0.5×(Q8’+Q8’)+0.5×Q6’=2956.055+26944.51+00.5×1207..09=6254.111kN⑶首層重力荷載代表表值樓面荷載Q1”=21588.40kkN樓面梁自重QQ2”=763..94kNN柱自重Q3”=28800kN墻自重Q4”=18544.11kkN樓梯荷載Q5”=196..02+322.29+112.87==241.118kN樓面活載Q6”=2.5×(36+0..24)×2.4+(4.5+00.12)×(6.6+00.12)×2.5+22.0×(36+0..24)×(6.6+00.12)+2.0×(31.5++0.12)×(6.6+00.12)=12077.09kkNQ7”=Q1”+Q2”=29222.34kNQ88”=Q3”+Q4”+Q5”=49755.29kkNG11=Q7”+0.5×(Q8’+Q5”)+0.5×Q6”=7360.799kN6.2梁柱的線剛剛度、柱的側(cè)側(cè)移剛度梁柱的混凝土標(biāo)號(hào)號(hào)均為C30,Ec=3.0×107kN/mm26.2.1梁的線剛度在計(jì)算框架梁慣性矩矩時(shí)應(yīng)考慮到到樓板的影響響,在框架梁梁兩端節(jié)點(diǎn)附附近,梁承受受負(fù)彎矩,頂頂部的樓板手手拉,樓板對(duì)對(duì)梁截面彎曲曲剛度影響較較小,梁跨中中承受正彎矩矩,樓板處于于受壓區(qū)形成成T形截面梁,對(duì)對(duì)梁的截面彎彎曲剛度影響響較大,為方方便計(jì)算。假假定梁的截面面慣性矩I延軸線不變變,現(xiàn)澆樓蓋蓋邊框架取I=1.55I0,對(duì)中框架架取I=2.00I0,橫向剛度度計(jì)算見(jiàn)表6.2梁的線剛度表表6.2梁號(hào)截面寬(mm)截面高(mm)長(zhǎng)度L(m)線剛度i(×100-4mEc)邊框架1.5i(×10-4mEc)中框架2.0i(×10-4mEc)KL13007006.612.9919.4925.98KL22005002.48.6813.0217.366.2.2柱的線剛度柱的線剛度表6.3層號(hào)截面b×h(m×m)柱高度H(m)線剛度i(×100-4mEc)10.8×0.8568.272-60.6×0.63.6306.2.3橫向框架柱的側(cè)移移剛度D值橫向框架柱的D值值表6.4柱類型項(xiàng)目層號(hào)K=∑Kb/∑Kc(一般層)K=∑Kb/Kc(底層)α=K/(2+K)(一般層)α=(0.5+K)/(2+K)(底層)D=12αcicc/h2(kN/m)根數(shù)底層邊框邊柱0.2850.344338184邊框中柱0.4760.394387344中框邊柱0.3810.3703637414中框中柱0.6340.43142371142至6層邊框邊柱0.6500.245204174邊框中柱1.080.351292504中框邊柱0.4340.1781483314中框中柱1.4450.4193491714底層∑D1=133926388,2-6層每層∑D2=8951168kNN/m∑D1/∑D2=13926388/8951168=1..56>0.7∴為規(guī)則框架6.3橫向框架地地震作用下計(jì)計(jì)算6.3.1橫向框架自振周期期按頂點(diǎn)位移法計(jì)算框框架自振周期期,頂點(diǎn)位移移法是求結(jié)構(gòu)構(gòu)基本頻率的的一種近似方方法,將結(jié)構(gòu)構(gòu)按質(zhì)量分布布情況簡(jiǎn)化為為無(wú)限質(zhì)點(diǎn)的的懸臂直桿如如圖6-2圖6-2框框架簡(jiǎn)化圖位移計(jì)算表6.5層數(shù)Gi(kN)VGi(kN)Di(kN/m)δi(m)Δi(m)GiΔi(kN·m)GiΔ2i(kN·m2)65590.235590.238951680.0060.128714.0291.2056133.5211723.7558951680.0130.121745.1190.5246254.1117977.8668951680.0200.108677.8673.4736254.1124231.9778951680.0270.088552.2548.7726254.1130486.0888951680.0340.061382.9623.4517360.7937846.87713926380.0270.027200.045.44T=2πψT(∑∑GiΔ2i/∑GiΔi·g)0.5=2×3.14××0.7×(332.884/3272..24×9.8)0.5=0.448s其中∑GiΔ2ii=332..84kNN·m2∑GiΔi=3272.244kN·m6.3.2樓層地震剪力計(jì)算算該建筑結(jié)構(gòu)高度小小于40m,質(zhì)量和剛剛度沿高度分分布比較均勻勻,變形以剪剪切變形為主主,因此可以以用底部剪力力法來(lái)計(jì)算水水平地震作用用首先,計(jì)算總水平平地震作用標(biāo)標(biāo)準(zhǔn)值,即底底部剪力FEK=α1Geqα1——相應(yīng)于結(jié)構(gòu)基本自自振周期的水水平地震影響響系數(shù)Geq——結(jié)構(gòu)等效效總重力荷載載,多質(zhì)點(diǎn)取取總重力荷載載代表值的85%∴Geq=0.85∑∑Gi=0.855×378466.87=332169..84kNN本場(chǎng)地地震烈度為為8度,設(shè)計(jì)基基本地震的加加速度為0.2g,設(shè)計(jì)地震震分組為第一一類,場(chǎng)地類類別為Ⅱ類,其特征征周期為T(mén)g=0.355s查表得水平地震影影響系數(shù)最大大值αmax=0..16由于Tg=0.35s<TT=0.4448s<5Tgξ=0.05,η22=1.0,γ=0.9∴α=(Tg/TT)γη2αmax=(0.35//0.4488)0.9×1..0×0.116=0.1128FEK=α1Geqq=0.1228×321699.84=44117.774kNT1=0.448s<<1.4Tg=1.4×0.35==0.49ss∴不修正則質(zhì)點(diǎn)i的水平地地震作用標(biāo)準(zhǔn)準(zhǔn)值為Fi=GiHiFEK/∑GkHk其中Gi、Gk分別為質(zhì)點(diǎn)i、kk的重力荷載載代表值,Hi、Hk分別為i、k的計(jì)算高度度,具體計(jì)算算過(guò)程如表6.6,各樓層間間地震剪力按按Vi=∑Fk來(lái)計(jì)算,列列入表中計(jì)算算樓層地震剪力表6.6層數(shù)hi(m)Hi(m)Gi(kN)GiHi(kN·m)Fi(kN)Vi(kN)∑D(kN/m)Δui(m)Δui/hi63.6235590.23128575.2291031.501031.508951680.00120.0003253.619.46133.52118990.229954.611986.118951680.00220.0006243.615.86254.1198814.944792.752778.868951680.00310.0008633.612.26254.1176300.144612.123390.988951680.00380.0010523.68.66254.1153785.355431.503822.488951680.00430.001191557360.7936803.955295.264117.7413926380.00300.00059各質(zhì)點(diǎn)水平地震作作用及樓層剪剪力沿結(jié)構(gòu)高高度的分布見(jiàn)見(jiàn)圖6-3圖6-3橫向水水平地震作用用及層間地震震剪力6.3.3水平地震作用下的的框架側(cè)移驗(yàn)驗(yàn)算Δui/hi=0.000119<1/550,滿足位移移要求6.3.4水平地震作用下框框架內(nèi)力計(jì)算算框架柱剪力和柱端端彎矩采用D值法,將層層間剪力分配配到該層的各各個(gè)柱子,即即求出柱子的的剪力,再由由柱子的剪力力和反彎點(diǎn)高高度求柱上、下端彎矩。柱上下端彎矩Mbbij=VijyhMMuij=Vijyh(1-y)yy=y0+y1+y2+y3式中Dij———i層j柱的側(cè)移剛剛度,h為該層柱的的計(jì)算高度y——反彎點(diǎn)高度度y0——標(biāo)準(zhǔn)反彎點(diǎn)點(diǎn)高比,根據(jù)據(jù)上下梁的平平均線剛度Kb和柱的相對(duì)對(duì)剛度Kc的比值、總層數(shù)m、該層位置n查表確定y1——上下梁的相相對(duì)變化線剛剛度的修正值值,由上下梁梁相對(duì)剛度比比值α1及i查表得y2——上下層層高高變化的修正正值,由上層層層高對(duì)該層層層高比值αα2及i查表得y3——下層層高對(duì)對(duì)該層層高的的比值α3及i查表得yn是根據(jù)倒三三角分布水平平荷載下各層層柱標(biāo)準(zhǔn)反彎彎點(diǎn)高度比yn查得可先求出柱的剪力力柱的剪力分配表6.7中框架層剪力(kN)邊柱D值(kN/m)中柱D值(kN/m)ΣD(kN/m)每根邊柱剪力(kkN)每根中柱剪力(kkN)61031.50148333491789516817.0940.2351986.11148333491789516832.9177.4742778.86148333491789516846.05108.3933390.98148333491789516856.19132.2723822.4814

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