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引言目的目前在城市建設(shè)中,越來(lái)越多的高層建筑拔地而起,建筑高度也越來(lái)越高,不論是底層建筑或者是中高層建筑,還是說(shuō)高層建筑,剪力墻結(jié)構(gòu)在建筑方面的應(yīng)用都十分廣泛。實(shí)踐證明,小高層住宅能帶來(lái)很好的經(jīng)濟(jì)效益,其建筑容積率高于多層住宅,而且節(jié)約土地,房地產(chǎn)開(kāi)發(fā)商的投資成本比多層住宅的有所降低。希望在完成畢業(yè)設(shè)計(jì)的過(guò)程中,能夠彌補(bǔ)我對(duì)在課堂書(shū)本上學(xué)習(xí)內(nèi)容的欠缺,逐漸熟悉并且掌握課本理論知識(shí),慢慢培養(yǎng)我的實(shí)踐動(dòng)手能力,在此過(guò)程中了解土木工程專業(yè)方面的規(guī)范要求,夯實(shí)個(gè)人在專業(yè)知識(shí)基礎(chǔ),同時(shí)利用多種軟件進(jìn)行建模計(jì)算工程,練習(xí)CAD、PKPM、盈建科等軟件的使用,培養(yǎng)自己利用科學(xué)方法結(jié)合專業(yè)解決問(wèn)題的能力。1.2設(shè)計(jì)內(nèi)容本設(shè)計(jì)主要基于剪力墻結(jié)構(gòu),再?gòu)慕ㄖ徒Y(jié)構(gòu)設(shè)計(jì)方面入手,最后基于盈建科軟件進(jìn)行電算與手算的誤差分析。各章內(nèi)容如下所示:1)建筑設(shè)計(jì)階段:根據(jù)國(guó)家相應(yīng)的建筑標(biāo)準(zhǔn)規(guī)范和規(guī)劃對(duì)策,滿足其要求,對(duì)4#住宅樓進(jìn)行平面、立面、剖面三方面的設(shè)計(jì)。2)結(jié)構(gòu)設(shè)計(jì)階段:首先要對(duì)結(jié)構(gòu)形式進(jìn)行選擇,然后進(jìn)行墻體類型的判斷,進(jìn)而計(jì)算剛度、荷載、風(fēng)荷載和地震荷載作用下的位移,最后對(duì)墻體配筋計(jì)算,布置鋼筋。3)軟件電算與手算部分比較階段:使用盈建科軟件進(jìn)行4#住宅樓的建模,荷載布置,然后得到數(shù)據(jù)并與手算的內(nèi)容進(jìn)行比較分析。1.3設(shè)計(jì)資料1)基本風(fēng)壓為,基本雪壓為。2)抗震設(shè)防烈度為7度,設(shè)計(jì)分組為第二組,建筑場(chǎng)地類別為Ⅲ類。3)剪力墻厚度為200mm。4)混凝土等級(jí)為C30。5)構(gòu)件配筋的箍筋、分布筋均采用HRB400級(jí)鋼筋。6)標(biāo)準(zhǔn)層樓面的做法:30厚1:2水泥砂漿壓實(shí)抹平,素水泥漿結(jié)合層一道,90厚1:6水泥焦砟墊層,鋼筋混凝土樓板。屋面的做法:20厚1:2.5水泥砂漿防水層,10厚1:4石灰砂漿,3+3厚SBS改性瀝青防水卷材,20厚1:2.5水泥砂漿找平層,90厚擠塑聚苯板,現(xiàn)澆混凝土屋面板。
2建筑設(shè)計(jì)2.1住宅樓平面設(shè)計(jì)4#住宅樓的建筑設(shè)計(jì)滿足國(guó)家建筑標(biāo)準(zhǔn)的相關(guān)規(guī)范和規(guī)劃的要求,建筑與周圍環(huán)境相適宜,外觀協(xié)調(diào)美感。本次4#住宅樓按套型進(jìn)行設(shè)計(jì),每套住宅包括臥室、起居室、衛(wèi)生間、多功能室、餐廳、廚房、陽(yáng)臺(tái)等房間類型。本設(shè)計(jì)中共兩種套型,甲套型的總建筑面積為127.83m2,乙套型的總建筑面積為138.58m2。甲套型的使用面積為103.09m2,其中包括兩間臥室共35.33m2,兩間衛(wèi)生間共10.95m2,起居室17.64m2,餐廳10.95m2,廚房6.57m2,多功能室12.35m2,陽(yáng)臺(tái)面積為9.3m2。乙套型的使用面積為114.33m2,其中包括三間臥室共45.06m2,兩間衛(wèi)生間共16.4m2,起居室19.8m2,餐廳10.95m2,廚房7.59m2,多功能室7.56m2,陽(yáng)臺(tái)面積為6.97m2。2.1.1使用部分的平面設(shè)計(jì)各個(gè)房間的平面尺寸滿足家具、設(shè)備等物品的安裝,設(shè)計(jì)滿足房間的使用、采光、經(jīng)濟(jì)等多個(gè)要求。甲套型中兩間臥室均為雙人臥室,尺寸分別為3.1m×3.8m,3.7m×5.75m,其中一間為主臥室,起居室的尺寸為4.2m×4.2m。乙型中三間臥室均為雙人臥室,尺寸分別為2.7m×8.7m,3.4m×3.65m,4.0m×3.95m+2.7m×2m,起居室的尺寸為4.5m×4.4m。2.1.2輔助部分的平面設(shè)計(jì)甲套型和乙套型的衛(wèi)生間尺寸大小分別為1.8m×3.65m和1.95m×1.75m;廚房的尺寸大小為1.8m×3.65m。餐廳尺寸大小為3.0m×3.85m;陽(yáng)臺(tái)尺寸大小為1.55m×6.0m。2.1.3交通部分的平面設(shè)計(jì)4#住宅樓采用的是雙跑樓梯,樓梯間的寬度為2.7m,梯段凈寬度為1.2m,踏步的寬度為0.26m,踏步的高度為0.157m,休息的平臺(tái)凈寬為1.45m,踏步的總數(shù)為18級(jí)(上、下各9級(jí))。設(shè)置了一部載重量為800kg的無(wú)障礙電梯,滿足樓體、人們需求和設(shè)備功能的要求。2.2住宅樓的剖面設(shè)計(jì)4#住宅樓的剖面設(shè)計(jì)選擇采用矩形剖面,建筑層數(shù)為地上7層,地下3層,層高為3.15m,室內(nèi)外高差為0.300m2.3住宅樓的立面設(shè)計(jì)4#住宅樓的立面設(shè)計(jì)構(gòu)成主要有:墻體、梁、板等結(jié)構(gòu)構(gòu)件,門窗、陽(yáng)臺(tái)等建筑構(gòu)件,其他一些保護(hù)性構(gòu)件,結(jié)合建筑美學(xué)和形式美學(xué)兩角度分析結(jié)果,整體建筑美觀大方,具有中式建筑和西式建筑的優(yōu)點(diǎn)。3結(jié)構(gòu)設(shè)計(jì)3.1結(jié)構(gòu)的選型4#住宅樓為小高層建筑結(jié)構(gòu),為了滿足其功能、要求等方面,要優(yōu)先選取抗震作用和抗風(fēng)性能好的結(jié)構(gòu),應(yīng)該具有相應(yīng)要求的承載力、剛度和延性。結(jié)合各種施工因素此次結(jié)構(gòu)類型選擇剪力墻結(jié)構(gòu),本結(jié)構(gòu)體系滿足規(guī)范使用要求,具有符合要求的抗風(fēng)和抗震性能。3.2結(jié)構(gòu)的布置4#住宅樓結(jié)構(gòu)的布置滿足國(guó)家標(biāo)準(zhǔn)規(guī)范的要求,擁有足夠的承載力,抗風(fēng)和抗震性能良好,滿足位移變形的要求,同時(shí)其布置從建筑和美學(xué)角度分析看,做到了美觀、工整、簡(jiǎn)便等特點(diǎn)。剪力墻結(jié)構(gòu)豎向抗側(cè)力結(jié)構(gòu)上下連通,不會(huì)發(fā)生剛度的突然轉(zhuǎn)變,門窗洞口整齊分布,便于計(jì)算,形成了墻肢和連梁。4剪力墻的類型判斷及剛度計(jì)算標(biāo)準(zhǔn)層剪力墻的結(jié)構(gòu)平面布置圖如圖4-1所示,選取Y方向的各片剪力墻進(jìn)行計(jì)算。4.1剪力墻的類型判別Y方向各片剪力墻的截面尺寸如圖4-2所示。圖4-2Y方向各片剪力墻的截面尺寸圖4-1標(biāo)準(zhǔn)層剪力墻結(jié)構(gòu)平面布置圖YSW-1、YSW-2、YSW-3、YSW-4、YSW-6、YSW-8、YSW-9、YSW-10、YSW-12、YSW-13、YSW-14、YSW-15、YSW-16、YWS-17、YSW-18、YSW-20均為整體墻。內(nèi)墻YSW-5、YSW-7、YSW-11、YSW-19,YSW-5、YSW-19洞口高度為2650mm,其連梁高度為500mm,YSW-7、YSW-11洞口高度為2600mm,連梁高度為550mm。4.1.1各片剪力墻截面特性YSW-7的截面特性計(jì)算:截面面積及截面慣性矩分別為:總面積及慣性矩總和為:截面形心坐標(biāo)為:組合截面慣性矩為:經(jīng)計(jì)算,有洞口的各片剪力墻的截面特性如表4-1所示。內(nèi)墻YSW-5、YSW-7、YSW-11、YSW-16、YSW-17、YSW-19,洞口高度為2800mm,其連梁高度分別為350mm。矩形截面選取剪應(yīng)力分布不均勻系數(shù)為μ=1.2。表4-1各片剪力墻截面特性(有洞口)墻號(hào)面積/慣性矩/形心組合截面慣性矩YSW-50.30.10.05620.00211.4870.71090.40.0583YSW-70.0820.3480.00110.08782.7980.77050.430.0889YSW-110.1220.4640.00370.20812.5180.96640.5860.2118YSW-190.320.1120.06820.00291.4140.53710.4320.0711YSW-7連梁折算慣性矩:洞口1寬度lbj0連梁截面面積為:連梁截面慣性矩為:折算慣性矩為:洞口兩側(cè)墻軸線間距:經(jīng)計(jì)算,各片剪力墻的連梁折算慣性矩如表4-2所示。表4-2各片剪力墻的連梁折算慣性矩墻號(hào)洞口YSW-511.950.502.20.101.20.0020.00202.950.0016YSW-712.130.552.400.111.20.0020.00233.200.0017YSW-1111.330.551.600.111.20.0020.00172.790.0033YSW-1911.290.501.540.101.20.0020.00152.370.00244.1.2各片剪力墻的類型三種類型剪力墻分別為:整體小開(kāi)口墻、聯(lián)肢墻和壁式框架,整體性系數(shù)a、墻肢慣性矩的比值以及樓層的層數(shù)是區(qū)分墻類型的標(biāo)準(zhǔn)。雙肢墻整體性系數(shù)α按式(4-1)計(jì)算: (4-1)YSW-7的類型:因?yàn)椴⑶遥訷SW-7為整體小開(kāi)口墻。各片剪力墻的類別如表4-3所示。表4-3各片剪力墻的類型墻號(hào)類型YSW-50.05830.71090.65260.0016610.260.917整體小開(kāi)口墻YSW-70.08890.77050.68160.0017610.180.885整體小開(kāi)口墻YSW-110.21180.96640.75460.0033410.160.781整體小開(kāi)口墻YSW-190.07110.53710.46600.0024210.330.867整體小開(kāi)口墻4.2剪力墻的剛度計(jì)算整體墻的等效剛度按式(4-3)計(jì)算,計(jì)算結(jié)果如表4-4所示。 (4-3)其中,H=21.95m,μ=1.2,表4-4整體墻的等效剛度墻號(hào)YSW-10.81.06672.89999YSW-20.971.90145.09984YSW-30.320.06830.19024YSW-40.340.08190.22804YSW-60.350.08930.24868YSW-80.360.09720.27052YSW-90.460.20280.56224YSW-100.3120.06330.17636YSW-120.50.26040.72075YSW-130.390.12360.34359YSW-140.280.04570.12759YSW-150.460.20280.56224YSW-160.380.11430.31794YSW-170.4360.17270.47922YSW-180.40.13330.37056YSW-200.821.14873.11839整體小開(kāi)口墻等效剛度按式(4-4)計(jì)算,計(jì)算結(jié)果如表4-5所示。 (4-4)表4-5整體小開(kāi)口墻的等效剛度墻號(hào)YSW-50.40.71091.53141YSW-70.430.77051.65927YSW-110.5860.99642.14999YSW-190.4320.53711.17048總剪力墻的剛度如表4-6所示。表4-6總剪力墻的剛度墻號(hào)墻體類型數(shù)量單個(gè)墻體的剛度同一墻體的剛度YSW-1整體墻12.899992.8999926.42057YSW-215.099845.09984YSW-330.190240.57072YSW-420.228040.45608YSW-620.248680.49736YSW-820.270520.54104YSW-920.562241.12448YSW-1030.176360.52908YSW-1210.720750.72075YSW-1310.343590.34359YSW-1420.127590.25518YSW-1510.562240.56224YSW-1610.317940.31794YSW-1710.479220.47922YSW-1810.370560.37056YSW-2013.118393.11839YSW-5整體小開(kāi)口墻21.531413.06282YSW-721.659273.31854YSW-1112.149992.14999YSW-1911.170481.170485荷載計(jì)算5.1重力荷載標(biāo)準(zhǔn)值計(jì)算1)屋面荷載屋面恒荷載20厚1:2.5水泥砂漿防水層0.02×20.0=0.4kN/m210厚1:4石灰砂漿0.01×20.0=0.02kN/m23+3厚SBS改性瀝青防水卷材0.2kN/m220厚1:2.5水泥砂漿找平層0.02×20.0=0.4kN/m290厚擠塑聚苯板1.245kN/m2100厚現(xiàn)澆混凝土屋面板0.1×25=2.5kN/m2合計(jì)4.765kN/m2屋面活荷載(不上人屋面)0.5kN/m2屋面雪荷載0.30kN/m22)樓面荷載樓面恒荷載20厚1:2水泥砂漿壓實(shí)抹平0.02×20=0.4kN/m210厚防滑地磚0.01×19.8=0.198kN/m250厚C15豆石混凝土0.05×15.0=0.75kN/m2素水泥漿結(jié)合層一道20厚擠塑苯板保溫層0.006kN/m2120厚鋼筋混凝土樓板0.12×25=3.0kN/m2合計(jì)4.36kN/m2衛(wèi)生間、廚房、陽(yáng)臺(tái)地面恒荷載10厚防滑地磚0.01×19.8=0.198kN/m220厚1:2水泥砂漿壓實(shí)抹平0.02×20=0.4kN/m2素水泥漿結(jié)合層一道15厚水泥砂漿保護(hù)層0.015×20=0.3kN/m260厚細(xì)石混凝土抹平0.06×24=1.44kN/m220厚擠塑苯板保溫層0.006kN/m2120厚鋼筋混凝土樓板0.12×25=3.0kN/m2合計(jì)5.34kN/m2樓面活荷載住宅、廚房、走廊、門廳、樓梯2.0kN/m2衛(wèi)生間、陽(yáng)臺(tái)2.5kN/m2餐廳4.0kN/m23)外墻荷載160厚鋼筋混凝土0.16×25=4.0kN/m2130厚巖棉現(xiàn)澆混凝土復(fù)合保溫板0.13×1.4=0.182kN/m2合計(jì)4.18kN/m2290厚蒸壓加氣混凝土砌塊0.29×0.55=0.1595kN/m24)內(nèi)墻荷載200厚鋼筋混凝土實(shí)體墻0.2×25=5.0kN/m2100厚混凝土小型空心砌塊墻0.1×11.8=1.18kN/m2200厚加氣混凝土砌塊墻0.2×0.55=0.11kN/m2合計(jì)1.29kN/m25)梁自重重力荷載160mm×400mm梁自重0.16×(0.4—0.12)×25=1.12kN/m210mm厚水泥砂漿0.01×(0.4—0.12)×2×20=0.112kN/m2合計(jì)1.234kN/m26)門窗自重重力荷載鋼制防盜門0.45kN/m2鋁合金門0.4kN/m2防火門0.45kN/m2鋁塑共擠窗0.45kN/m27)設(shè)備自重重力荷載電梯等相關(guān)設(shè)備重量200kN,水箱等相關(guān)設(shè)備重量300kN。5.2風(fēng)荷載標(biāo)準(zhǔn)值計(jì)算垂直作用于建筑物表面的風(fēng)荷載標(biāo)準(zhǔn)值按式(5-1)計(jì)算。 (5-1)結(jié)構(gòu)總高度,高寬比,所以不必考慮風(fēng)壓脈動(dòng)的影響。各樓層風(fēng)荷載計(jì)算如表5-1所示,各樓層風(fēng)荷載在底部產(chǎn)生的彎矩如表5-2所示。表5-1各樓層風(fēng)荷載計(jì)算樓層樓頂24.60.511.02.351.33.061.28722.250.511.03.051.328.9315.75619.20.511.03.151.328.9316.26516.050.511.03.151.328.9316.26412.90.511.03.151.328.9316.2639.750.511.03.151.328.9316.2626.60.511.03.151.328.9316.2613.450.511.03.151.328.9316.26表5-2各樓層風(fēng)荷載在底部產(chǎn)生的彎矩樓層H/m頂樓24.31.2831.104721.9515.75345.7125618.916.26307.314515.7516.26256.095412.616.26204.87639.3516.26152.03126.316.26102.43813.1516.2651.219將作用于各樓層的風(fēng)荷載按要求折算為倒三角形分布荷載和均布荷載的疊加。倒三角分布荷載最大值qmax和均布荷載q風(fēng)荷載的轉(zhuǎn)化如圖5-1所示。qmax=4.260kN/m q=3.021kN/m圖5-1風(fēng)荷載的轉(zhuǎn)化
6水平地震作用計(jì)算6.1重力荷載代表值計(jì)算結(jié)構(gòu)地震分析計(jì)算簡(jiǎn)圖如圖6-1所示。各可變荷載組合值系數(shù)為:雪荷載0.3,屋面活荷載0,按等效均布荷載計(jì)算的樓面活荷載為0.5。圖6-1動(dòng)力計(jì)算簡(jiǎn)圖6.1.1結(jié)構(gòu)構(gòu)件自重標(biāo)準(zhǔn)值計(jì)算1)外墻自重標(biāo)準(zhǔn)值外墻總長(zhǎng)度:L=(34+14.5)×2+1.55×2+(0.75+0.65+0.7)+1.1×6+(0.7+0.75)×2=111.7m標(biāo)準(zhǔn)層外墻面積:A=111.7×3.15-1.95×2.1×2-1.95×2.4×3-2.5×2.55×3-0.8×1.65×6-1.65×2.1×5-0.95×1.65×2-1.5×2.4-1.5×1.7-1.65×1.2=273.99m2標(biāo)準(zhǔn)層外墻自重標(biāo)準(zhǔn)值:2)內(nèi)墻自重標(biāo)準(zhǔn)值內(nèi)墻包括門窗洞口的總長(zhǎng)度:L=155.03m標(biāo)準(zhǔn)層內(nèi)墻面積:A=155.03×3.15-15×1.0×2.1-17×1.2×2.1-2×4.28×2.3=394.31m2標(biāo)準(zhǔn)層內(nèi)墻自重標(biāo)準(zhǔn)值:3)門窗自重標(biāo)準(zhǔn)值:防火門:鋼制防盜門:總門自重標(biāo)準(zhǔn)值:窗自重標(biāo)準(zhǔn)值:4)樓板、樓梯間、電梯間自重標(biāo)準(zhǔn)層樓面面積:482.84m2樓梯間及電梯間總面積:37.255m2衛(wèi)生間及陽(yáng)臺(tái)面積:43.62m2廚房面積:28.32m2餐廳面積:43.8m2樓板自重:Gk1=4.36×(482.84-37.255-43.62-28.32)+5.34×(43.62+28.32)=2013.25kN樓梯間及電梯自重:樓板活荷載:5)梁自重梁總長(zhǎng):L=65.05+18.8+17.72=101.57m梁自重:6.1.2重力荷載代表值計(jì)算重力荷載代表值計(jì)算結(jié)果如表6-1所示,計(jì)算結(jié)果如表6-2所示,計(jì)算結(jié)果如表6-3所示。表6-1重力荷載代表值結(jié)構(gòu)構(gòu)件單位面積重量/()面積/單位長(zhǎng)度重量/()長(zhǎng)度/重量/外墻4.180273.991145.28內(nèi)墻5.000394.311972.55門防火門0.45074.3433.45鋼質(zhì)防盜門0.45019.6888.86窗0.45077.86535.04樓板衛(wèi)生間、陽(yáng)臺(tái)、廚房5.34071.94384.16其他4.360373.6451629.09樓梯間、電梯間5.23237.255194.92梁2.0865.05135.301.6818.831.584.0017.7270.88樓面活荷載衛(wèi)生間、陽(yáng)臺(tái)2.50043.62109.05餐廳4.00043.8175.20其他2.000395.42790.84G1-G7=恒荷載+0.5活荷載=6178.65kN(設(shè)計(jì)值為8032kN)表6-2重力荷載代表值構(gòu)件單位面積重量/()面積/重量/電梯等設(shè)備自重200水箱等設(shè)備自重300屋面雪荷載0.335.5910.67G8=510.67kN(設(shè)計(jì)值為664kN)表6-3重力荷載代表值構(gòu)件單位面積重量/()面積/重量/電梯等設(shè)備自重200水箱等設(shè)備自重300屋面雪荷載0.3482.84144.85G9=644.85kN(設(shè)計(jì)值為838kN)6.2結(jié)構(gòu)基本自振周期計(jì)算4#住宅樓結(jié)構(gòu)為剪力墻結(jié)構(gòu),基本自振周期T1按式(6-1)計(jì)算。 (6-1)屋頂普遍具有突出間,應(yīng)該將電梯間和水箱間質(zhì)點(diǎn)的重力荷載代表值按要求折算到主體結(jié)構(gòu)的頂層:將各質(zhì)點(diǎn)對(duì)應(yīng)的重力荷載代表值代換為均布荷載:分別計(jì)算均布荷載和集中荷載作用下結(jié)構(gòu)變形位移:uu總位移:u由式(6-1)計(jì)算,取,故結(jié)構(gòu)自振周期為:6.3水平地震作用計(jì)算4#住宅樓建筑高度小于40m,采用底部剪力法進(jìn)行計(jì)算。結(jié)構(gòu)的等效總重力荷載為:G查規(guī)范可知特征周期,水平地震影響系數(shù)最大值。結(jié)構(gòu)底部剪力為:F由于,所以頂部附加作用系數(shù)為0。各質(zhì)點(diǎn)水平地震作用標(biāo)準(zhǔn)值按式(6-3)計(jì)算,計(jì)算結(jié)果如表6-5所示。 (6-3)表6-5各質(zhì)點(diǎn)水平地震作用標(biāo)準(zhǔn)值樓層924.6644.8515863.310.0278240.945927.24822.25510.6711362.410.0199172.583839.93721.956178.65135621.370.23732059.9345215.36618.96178.65116776.490.20431773.6933522.82515.756178.6597313.740.17031478.0823279.73412.66178.6577850.990.13621182.4614899.0339.456178.6558388.240.1022886.858380.7026.36178.6538925.500.0681591.233724.7613.156178.6519462.750.0341295.62931.19合計(jì)44406.07571564.781.00008681.38139720.76重力荷載代表值的設(shè)計(jì)值為:i=1計(jì)算得出作用于結(jié)構(gòu)頂部的集中力和集中力矩:FM倒三角形分布荷載的最大值和頂點(diǎn)集中荷載F按式(6-4)計(jì)算。 (6-4)折算前主體結(jié)構(gòu)的水平地震作用產(chǎn)生的底部彎矩和底部剪力分別為:M則倒三角形分布荷載最大值和頂點(diǎn)集中荷載F為:qF水平地震作用的轉(zhuǎn)化如圖6-2所示。圖6-2水平地震作用的轉(zhuǎn)化6.4結(jié)構(gòu)水平位移、剛重比和剪重比的驗(yàn)算6.4.1結(jié)構(gòu)水平位移驗(yàn)算均布荷載、倒三角形荷載、頂點(diǎn)集中荷載作用下的頂點(diǎn)位移按式(6-5)計(jì)算。 (6-5)結(jié)構(gòu)在風(fēng)荷載和水平地震荷載作用下的位移計(jì)算如表6-6和表6-7所示。表6-6結(jié)構(gòu)在風(fēng)荷載作用下的位移計(jì)算樓層風(fēng)荷載作用下倒三角荷載作用下均布荷載作用下總位移721.950.012180.008300.020480.00741618.90.007770.005300.013080.00551515.750.004500.003070.007570.00369412.60.002300.001570.003870.0022439.450.000970.000660.001630.0011526.30.000290.000200.000480.0004213.150.000040.000020.000060.00006表6-7結(jié)構(gòu)在水平地震作用下的位移計(jì)算樓層風(fēng)荷載作用下倒三角荷載作用下頂點(diǎn)集中荷載作用下總位移721.950.8790.2731.1520.379618.90.5610.2130.7730.326515.750.3250.1230.4480.218412.60.1660.0630.2290.13239.450.0700.0270.0970.06826.30.0210.0080.0290.02513.150.0030.0010.0040.004風(fēng)荷載作用下:△u水平地震作用下:△u6.4.2剛重比驗(yàn)算由圖6-2可知,地震作用的倒三角形分布荷載的最大值為。由表6-7得倒三角形荷載作用下位移。結(jié)構(gòu)的等效側(cè)向剛度為:E剛重比為:,滿足要求。故可以不考慮重力二階效應(yīng)的不利影響。6.4.3剪重比驗(yàn)算依據(jù)規(guī)范可知剪重比應(yīng)滿足下式: (6-6)最小地震剪力系數(shù)值為地震作用下底部的總剪力值為:V底層的重力荷載代表值為:i=1剪重比為:V結(jié)構(gòu)水平地震剪力不必調(diào)整。
7剪力墻的內(nèi)力設(shè)計(jì)值計(jì)算7.1水平地震作用下結(jié)構(gòu)內(nèi)力設(shè)計(jì)值計(jì)算7.1.1總剪力墻內(nèi)力計(jì)算作用在結(jié)構(gòu)上的水平地震作用分為左震和右震。水平地震作用下,剪力墻結(jié)構(gòu)倒三角形分布荷載為,頂點(diǎn)集中荷載為。倒三角形荷載作用下的彎矩及剪力按式(7-1)計(jì)算,計(jì)算結(jié)果如表7-1所示。 (7-1)頂點(diǎn)集中荷載作用下的彎矩及剪力按式(7-2)計(jì)算,計(jì)算結(jié)果如表7-1所示。 (7-2)表7-1水平地震作用下總剪力墻內(nèi)力計(jì)算樓層倒三角形荷載作用下頂點(diǎn)集中荷載作用下總內(nèi)力721.950.70.0000.0001723.5900.0001723.5900.000618.90.61620.062-2555.5461723.590-5256.9503343.652-7812.495515.750.53087.414-10153.9261723.590-10686.2584811.004-20840.184412.60.44345.618-22168.9471723.590-16115.5676069.208-38284.51439.450.35394.675-37971.5631723.590-21544.8757118.265-59516.43826.30.26234.584-56932.7251723.590-26974.1847958.174-83906.90813.150.16865.346-78423.3881723.590-32403.4928588.936-110826.8800007286.961-101814.5041723.590-37832.8019010.551-139647.3057.1.2各片剪力墻內(nèi)力計(jì)算1)總剪力墻內(nèi)力的分配根據(jù)各片剪力墻的等效剛度進(jìn)行內(nèi)力分配。各片剪力墻的等效剛度比如表7-2所示。表7-2各片剪力墻的等效剛度比墻號(hào)數(shù)量每片墻等效剛度/總剛度每片墻等效剛度比/YSW-112.8999922.227340.13047YSW-215.099840.22944YSW-330.190240.00856YSW-420.228040.01026YSW-521.531410.06890YSW-620.248680.01119YSW-721.659270.07465YSW-820.270520.01217YSW-920.562240.02529YSW-1030.176360.00793YSW-1112.149990.09673YSW-1210.720750.03243YSW-1310.343590.01546YSW-1420.127590.00574YSW-1510.562240.02529YSW-1610.317940.01430YSW-1710.479220.02156YSW-1810.370560.01667YSW-1911.170480.05266YSW-2013.118390.14030取整體墻YSW-2和整體小開(kāi)口墻YSW-11按式(7-3)計(jì)算各片剪力墻的內(nèi)力。水平地震作用下各片剪力墻分配的內(nèi)力如表7-3所示。 (7-3)表7-3水平地震作用下各片剪力墻分配的內(nèi)力樓層總內(nèi)力YSW-2YSW-1171723.590.000395.46050.000166.72290.00063343.652-7812.495767.1675-1792.499323.4315-7557.02654811.004-20840.1801103.837-4781.572465.3684-20158.7146069.208-38284.5101392.519-8783.999587.0745-37032.6137118.265-59516.4401633.215-13655.45688.5498-57570.2527958.174-83906.9101825.923-19251.6769.7942-81163.1518588.936-110826.901970.645-25428.12830.8078-107202.809010.551-139647.302067.381-32040.68871.5906-135080.82)整體小開(kāi)口墻YSW-11的內(nèi)力計(jì)算墻肢截面內(nèi)力按式(7-4)計(jì)算: (7-4)連梁內(nèi)力按式(7-5)計(jì)算: (7-5)由表可得,,,,則MMVVNNVM水平地震作用下YSW-11的墻肢及連梁內(nèi)力計(jì)算如表7-4所示。樓層總內(nèi)力左墻肢內(nèi)力右墻肢內(nèi)力連梁7166.70.018.80.00.0147.910.00.0103.52155.66323.4-7557.036.4-43.83-155.67286.94-2496.8155.6172.68259.65465.3-2015.752.4-116.92-415.26412.87-6660.4415.2231.15347.64587.0-3703.666.2-214.78-762.87520.85-1223.5762.8281.34423.03688.5-5757.277.6-333.90-1185.9610.88-1902.21185.9323.19486.02769.7-8116.186.8-470.74-1671.9682.96-2681.31671.9356.71536.11830.8-1072.893.7-621.77-2208.3737.09-3541.82208.3381.9574.20871.5-1350.898.3-783.46-2782.6773.27-4463.62782.6表7-4水平地震作用下YSW-11的墻肢及連梁內(nèi)力計(jì)算7.2風(fēng)荷載作用下結(jié)構(gòu)內(nèi)力設(shè)計(jì)值計(jì)算7.2.1總剪力墻內(nèi)力計(jì)算作用在結(jié)構(gòu)上的風(fēng)荷載分為左風(fēng)和右風(fēng)。在風(fēng)荷載作用下,剪力墻結(jié)構(gòu)倒三角形分布荷載為,均布荷載分布為。倒三角形荷載作用下的彎矩及剪力按式(7-1)計(jì)算,計(jì)算結(jié)果如表7-5所示。均布荷載作用下的彎矩及剪力按式(7-6)計(jì)算,計(jì)算結(jié)果如表7-5所示。 (7-6)表7-5風(fēng)荷載作用下總剪力墻內(nèi)力計(jì)算樓層倒三角形荷載作用下均布荷載作用下總內(nèi)力721.950.70.0000.0000.0000.0000.0000.000618.90.66.497-19.8144.607-14.05111.104-33.866515.750.513.206-81.8779.365-58.06422.571-139.941412.60.419.916-186.21014.123-132.05234.039-318.26239.450.326.625-332.81318.881-236.01645.506-568.82826.30.233.335-521.68523.639-369.95556.974-891.64013.150.140.044-752.82728.397-533.87168.441-1286.69800046.754-1026.23933.155-727.76379.909-1754.0027.2.2各片剪力墻內(nèi)力計(jì)算1)總剪力墻內(nèi)力的分配根據(jù)表7-2求得的各片剪力墻的等效剛度比,風(fēng)荷載作用下各片剪力墻分配的內(nèi)力可按式(7-3)計(jì)算。取整體墻YSW-2和整體小開(kāi)口墻YSW-11進(jìn)行風(fēng)荷載作用下剪力墻內(nèi)力分配,結(jié)果如表7-6所示。表7-6風(fēng)荷載作用下各片剪力墻分配的內(nèi)力樓層總內(nèi)力YSW-2YSW-1170.0000.0000.0000.0000.0000.000611.104-33.8662.548-7.7701.074-3.276522.571-139.9415.179-32.1082.183-13.536434.039-318.2627.810-73.0223.293-30.785345.506-568.82810.441-130.5124.402-55.023256.974-891.64013.072-204.5785.511-86.248168.441-1286.69815.703-295.2206.620-124.462079.909-1754.00218.334-402.4387.730-169.6652)整體小開(kāi)口墻YSW-11內(nèi)力計(jì)算墻肢截面內(nèi)力按式(7-4)計(jì)算,連梁內(nèi)力按式(7-5)計(jì)算,與水平地震作用下的內(nèi)力計(jì)算公式相同。風(fēng)荷載作用下YSW-11的墻肢及連梁內(nèi)力計(jì)算如表7-7所示。表7-7風(fēng)荷載作用下YSW-11的墻肢及連梁內(nèi)力計(jì)算樓層總內(nèi)力左墻肢內(nèi)力右墻肢內(nèi)力連梁7000.0000.0000.0000.0000.0000.000.5020.75461.074-3.2760.121-0.019-0.750.953-1.0820.751.5712.36352.183-13.530.246-0.079-3.111.937-4.4723.112.6423.97243.293-30.780.371-0.179-7.092.922-10.1717.093.7125.58234.402-55.020.497-0.319-12.673.905-18.18012.674.7827.19125.511-86.240.622-0.500-19.864.889-28.49619.865.8528.80116.62-124.40.747-0.722-28.665.873-41.12228.666.92310.4107.73-169.60.872-0.984-39.076.858-56.05739.077.3整體墻YSW-2在豎向荷載作用下的內(nèi)力7.3.1荷載計(jì)算(標(biāo)準(zhǔn)值)基本雪壓s0=0.3kN/msYSW-2樓(屋)面荷載傳遞方式如圖7-1所示。圖7-1YSW-2樓(屋)面荷載傳遞方式恒荷載屋面臥室:4.765×1.85=8.815kN/m樓面臥室:4.36×1.85=8.066kN/m墻體自重:4.18×3.15=13.167kN/m4.18×3.05=12.749kN/m豎向荷載作用下YSW-2各樓層恒荷載的分布圖如7-2所示。圖7-2YSW-2各樓層恒荷載的分布圖活荷載屋面臥室活荷載:0.5×1.85=0.925kN/m雪荷載:0.30×1.85=0.555kN/m樓面臥室:2.0×1.85=3.700kN/m豎向荷載作用下YSW-2各樓層活荷載的分布圖如7-3所示。圖7-3YSW-2各樓層活荷載的分布圖7.3.2內(nèi)力計(jì)算計(jì)算整體墻YSW-2的軸力,計(jì)算結(jié)果如表7-8所示。屋面恒荷載:8.815×(1.15+1.85)=26.445kN墻體自重:12.749×4.85=61.83kN13.167×4.85=63.86kN屋面活荷載:0.925×(1.15+1.85)=2.775kN屋面雪荷載:0.555×(1.15+1.85)=1.665kN考慮地震作用時(shí),樓(屋)面活荷載取0.5×樓面活荷載(0.5×雪荷載)。表7-8整體墻YSW-2的軸力計(jì)算樓層樓(屋)面恒荷載/墻自重/樓(屋)面活荷載/0.5×雪荷載或0.5×樓面活荷載/7頂26.44561.8326.4452.7752.7750.8330.833底88.2756頂24.19863.86112.47311.113.8755.5506.383底176.3335頂24.19863.86200.53111.124.9755.55011.933底264.3914頂24.19863.86288.58911.136.0755.55017.483底352.4493頂24.19863.86376.64711.147.1755.55023.033底440.5072頂24.19863.86464.70511.158.2755.55028.583底528.5651頂24.19863.86552.76311.169.3755.55034.133底616.6237.4整體小開(kāi)口墻YSW-11在豎向荷載作用下的在內(nèi)力7.4.1荷載計(jì)算YSW-11樓(屋)面荷載傳遞方式如圖7-4所示。圖7-4YSW-11樓(屋)面荷載傳遞方式1)恒荷載①屋面電箱:4.765×0.55=2.621kN/m電梯:200÷4突出機(jī)房層墻體自重:4.18×6.92=28.925kN/m樓面電箱:4.36×0.55=2.398kN/m墻體自重:(1.18+4.18)×3.15=16.884kN/m(1.18+4.18)×3.05=16.348kN/m圖7-5YSW-11各樓層恒荷載的分布圖2)活荷載①屋面電梯活荷載:0.5×1.16=0.580kN/m電箱活荷載:0.5×0.55=0.275kN/m電梯雪荷載:0.3×1.16=0.348kN/m電箱雪荷載:0.3×0.55=0.165kN/m②樓面電箱:2.0×0.55=1.100kN/m豎向荷載作用下YSW-11各樓層活荷載的分布圖如7-6所示。圖7-6YSW-11各樓層活荷載的分布圖7.4.2內(nèi)力計(jì)算計(jì)算整體小開(kāi)口墻YSW-11的軸力。1)左墻肢:屋面恒荷載:1墻體自重:16.884×1.1=18.572kN16.348×1.1=17.982kN屋面活荷載:1屋面雪荷載:12)右墻肢屋面恒荷載:1墻體自重:16.884×2.32=39.17kN16.348×2.32=37.92kN屋面活荷載:1屋面雪荷載:1整體小開(kāi)口墻YSW-11的左墻肢和右墻肢軸力計(jì)算結(jié)果分別如表7-9和表7-10所示。表7-9整體開(kāi)口墻YSW-11的左墻肢軸力計(jì)算樓層樓(屋)面恒荷載/墻自重/樓(屋)面活荷載/0.5×雪或0.5×樓活荷載/7頂33.25917.98226.4450.150.150.0450.045底88.2756頂1.31918.57289.5940.6050.7550.3030.348底108.1665頂1.31918.572109.4850.6051.360.3030.651底128.0574頂1.31918.572129.3760.6051.9650.3030.954底147.9483頂1.31918.572149.2670.6052.570.3031.257底167.8392頂1.31918.572169.1580.6053.1750.3031.56底187.7301頂1.31918.572189.0490.6053.780.3031.863底207.621表7-10整體小開(kāi)口墻YSW-11的右墻肢軸力計(jì)算樓層樓(屋)面恒荷載/墻自重/樓(屋)面活荷載/0.5×雪或0.5×樓活荷載/7頂123.51737.9226.4450.6730.150.2020.045底88.2756頂2.78239.1791.05756.4156.5656.4156.455底130.2275頂2.78239.17133.00956.41112.9756.41112.865底172.1794頂2.78239.17174.96156.41169.3856.41169.275底214.1313頂2.78239.17216.91356.41225.7956.41225.685底256.0832頂2.78239.17258.86556.41282.256.41282.095底298.0351頂2.78239.17300.81756.41338.6156.41338.505底339.9878剪力墻內(nèi)力組合和截面設(shè)計(jì)8.1內(nèi)力組合8.1.1結(jié)構(gòu)抗震等級(jí)根據(jù)國(guó)家標(biāo)準(zhǔn)建筑抗震規(guī)范,結(jié)合工程概況查表可知結(jié)構(gòu)抗震等級(jí)為四級(jí)。8.1.2剪力墻內(nèi)力組合不考慮地震作用時(shí)荷載組合的效應(yīng)設(shè)計(jì)值按式(8-1)計(jì)算。 (8-1)當(dāng)?shù)卣鹱饔门c作用效應(yīng)呈線性關(guān)系時(shí),荷載和地震作用組合的效應(yīng)設(shè)計(jì)值按式(8-2)計(jì)算。 (8-2)整體墻YSW-2非震時(shí)內(nèi)力組合計(jì)算見(jiàn)表8-1,整體墻YSW-2地震時(shí)內(nèi)力組合計(jì)算見(jiàn)表8-2,整體小開(kāi)口墻YSW-11非震時(shí)左墻肢內(nèi)力組合計(jì)算見(jiàn)表8-3,整體小開(kāi)口墻YSW-11非震時(shí)右墻肢內(nèi)力組合計(jì)算見(jiàn)表8-4,整體小開(kāi)口墻YSW-11地震時(shí)內(nèi)力組合計(jì)算見(jiàn)表8-5。
表8-1整體墻YSW-2非震時(shí)內(nèi)力組合計(jì)算樓層7頂26.442.770.000.0038.42035.6190.0000.00034.4540.000.000底88.257.772.54121.891109.8156.5272.140108.65010.873.5676頂112.413.87.772.54165.436154.3936.5272.14148.56510.873.567底176.332.105.17251.647231.02526.9714.35225.19744.957.2515頂200.524.932.105.17295.192275.60226.9714.35265.11344.957.251底264.373.027.81381.403352.23461.3386.56341.745102.210.9344頂288.536.073.027.81424.949396.81261.3386.56381.660102.210.934底352.4130.5110.44511.160473.444109.6308.77458.292182.714.6173頂376.647.1130.5110.44554.705518.021109.6308.77498.208182.714.617底440.5204.5713.07640.916594.653171.84610.98574.840286.418.3012頂464.758.2204.5713.07684.461639.231171.84610.98614.756286.418.301底528.5295.2215.03770.672715.863247.98513.19691.388413.321.9841頂552.769.3295.2215.70814.218760.441247.98513.19731.303413.321.984底616.6402.4318.33900.429837.073338.04815.40807.935563.425.668表8-2整體墻YSW-2地震時(shí)內(nèi)力組合計(jì)算樓層7頂26.4452.7750.8330.000395.460531.7340.000514.099底88.275-1792.499767.1675105.930-2330.249997.3186頂112.47313.87514.708-1792.499767.1675134.968-2330.249997.318底176.333-4781.5721103.837211.600-6216.0441434.9885頂200.53124.97539.683-4781.5721103.837240.637-6216.0441434.988底264.391-8783.9991392.519317.269-11419.1991810.2754頂288.58936.07575.758-8783.9991392.519346.307-11419.1991810.275底352.449-13655.4501633.215422.939-17752.0852123.1803頂376.64747.175122.933-13655.4501633.215451.976-17752.0852123.180底440.507-19251.6001825.923528.608-25027.0802373.7002頂464.70558.275181.208-19251.6001825.923557.646-25027.0802373.700底528.565-25428.1201970.645634.278-33056.5562561.8391頂552.76369.375250.583-25428.1201970.645663.316-33056.5562561.839底616.623-32040.6802067.381739.948-41652.8842687.595表8-3整體小開(kāi)口墻YSW-11非震時(shí)左墻肢內(nèi)力組合計(jì)算樓層7頂26.440.1500035.8431.940.000.0031.880.0000.000底88.27-0.75-0.0190.121119.31106.140.010.10106.070.0270.1696頂89.590.75-0.75-0.0190.121121.69108.570.010.10108.250.0270.169底108.16-3.11-0.0790.246146.76130.850.060.20130.530.1110.3445頂109.481.36-3.11-0.0790.246149.13133.280.060.20132.710.1110.344底128.05-7.09-0.1790.371174.21155.570.150.31155.000.2510.5194頂129.371.96-7.09-0.1790.371176.58158.000.150.31157.170.2510.519底147.94-12.67-0.3190.497201.65180.280.260.41179.460.4470.6963頂149.262.57-12.67-0.3190.497204.02182.710.260.41181.630.4470.696底167.83-19.86-0.50.622229.10205.000.420.52203.920.7000.8712頂169.153.17-19.86-0.50.622231.47207.430.420.52206.100.7000.871底187.73-28.66-0.7220.747256.54229.720.600.62228.381.0111.0461頂189.043.78-28.66-0.7220.747258.92232.150.600.62230.561.0111.046底207.62-39.07-0.9840.872283.99254.430.820.73252.851.3781.221表8-4整體小開(kāi)口墻YSW-11非震時(shí)右墻肢內(nèi)力組合計(jì)算樓層7頂26.4450.1500035.848底88.2750.754-1.0820.953119.3186頂91.05756.560.754-1.0820.953178.356底130.2273.117-4.4721.937231.2355頂133.0091133.117-4.4721.937290.273底172.1797.09-10.1712.922343.1524頂174.961169.47.09-10.1712.922402.190底214.13112.672-18.183.905455.0693頂216.913225.812.672-18.183.905514.107底256.08319.863-28.4964.889566.9862頂258.865282.219.863-28.4964.889626.024底298.03528.664-41.1225.873678.9031頂300.817338.628.664-41.1225.873737.941底339.98739.074-56.0576.858790.820續(xù)表8-4整體小開(kāi)口墻YSW-11非震時(shí)右墻肢內(nèi)力組合計(jì)算31.94431.9440.0000.00031.88131.8810.0000.000106.773105.507-0.9090.801107.133105.021-1.5151.334189.086187.819-0.9090.801165.753163.642-1.5151.334238.075232.838-3.7561.627216.065207.337-6.2612.712320.429315.193-3.7561.627274.715265.987-6.2612.712370.770358.859-8.5442.454327.281307.429-14.2394.091453.069441.158-8.5442.454385.891366.039-14.2394.091504.762483.473-15.2713.280440.710405.228-25.4525.467587.060565.771-15.2713.280499.320463.839-25.4525.467640.105606.735-23.9374.107556.392500.775-39.8946.845722.403689.033-23.9374.107615.002559.386-39.8946.845776.800728.644-34.5424.933674.328594.068-57.5718.222859.098810.943-34.5424.933732.938652.679-57.5718.222914.847849.202-47.0885.761794.516685.109-78.4809.601表8-5整體小開(kāi)口墻YSW-11地震時(shí)內(nèi)力組合計(jì)算樓層左墻肢內(nèi)力左震右震7頂31.7340.0000.00024.44831.73431.734底105.930-202.377-56.98047.428-96.447308.3076頂107.513-202.377-56.98047.428-94.864309.890底129.799-539.850-151.99768.242-410.051669.6495頂131.382-539.850-151.99768.242-408.468671.232底153.668-991.733-279.22686.089-838.0651145.4014頂155.251-991.733-279.22686.089-836.4821146.984底177.538-1541.731-434.079100.968-1364.1931719.2693頂179.120-1541.731-434.079100.968-1362.6111720.851底201.407-2173.549-611.970112.883-1972.1422374.9562頂202.990-2173.549-611.970112.883-1970.5592376.539底225.276-2870.891-808.309121.830-2645.6153096.1671頂226.859-2870.891-808.309121.830-2644.0323097.750底249.145-3617.464-1018.510127.810-3368.3193866.609右墻肢內(nèi)力連梁內(nèi)力左震右震31.7340.0000.000192.29231.73431.734134.581202.378105.930202.377-3245.893373.032308.307-96.447109.268202.377-3245.893373.032309.890-94.864224.489337.578156.272539.850-8658.569536.737669.649-410.051159.611539.850-8658.569536.737671.232-408.468300.503451.884206.615991.733-15906.250677.1071145.401-838.065209.953991.733-15906.250677.1071146.984-836.482365.749549.998256.9571541.731-24727.570794.1451719.269-1364.19260.2961541.731-24727.570794.1451720.851-1362.61420.159631.818307.3002173.549-34861.200887.8492374.956-1972.14310.6382173.549-34861.200887.8492376.539-1970.55463.732697.342357.6422870.891-46045.750958.2213096.167-2645.61360.9802870.891-46045.750958.2213097.750-2644.03496.470746.572407.9843617.464-58019.9001005.2583866.609-3368.318.2截面設(shè)計(jì)8.2.1基本設(shè)計(jì)資料選取整體墻YSW-2以及整體小開(kāi)口墻YSW-11進(jìn)行手算?;炷敛捎肅30級(jí)混凝土,剪力墻縱向配筋、箍筋以及分布筋采用HRB400級(jí)鋼筋。構(gòu)建材料性能如表8-6所示。表8-6構(gòu)件材料性能構(gòu)件材料材料力學(xué)性能剪力墻墻體C30混凝土獎(jiǎng)剪力墻縱向受力鋼筋、箍筋及分布鋼筋HRB400鋼筋8.2.2整體墻YSW-2截面設(shè)計(jì)整體墻YSW-2在非震和地震情況下的最不利內(nèi)力組合值為:非震情況下:M=563.413kN·mN=807.935kNV=25.668kN地震情況下:M=41652.884kN·mN=739.948kNV=2687.595kN截面尺寸驗(yàn)算剪力墻截面有效高度:剪跨比:由于本設(shè)計(jì)為四級(jí)抗震,因此對(duì)剪力墻底部加強(qiáng)區(qū)范圍內(nèi)的剪力設(shè)計(jì)值需按式(8-3)進(jìn)行調(diào)整。(8-3)調(diào)整后剪力:由于,故抗震承載力調(diào)整系數(shù),混凝土強(qiáng)度影響系數(shù)=1.0,滿足要求。2)軸壓比驗(yàn)算滿足要求。3)正截面偏心受壓承載力驗(yàn)算剪力墻面厚度,采用雙排配筋。由于本設(shè)計(jì)抗震等級(jí)為四級(jí),軸壓比,故YSW-2為有翼墻的剪力墻,約束邊緣構(gòu)件沿墻肢的長(zhǎng)度,取500mm。墻體豎向分布鋼筋選取雙排14@200鋼筋,由于(4850-500×2-200)/200=18.3,故布置20×2=40根分布鋼筋,則豎向分布鋼筋的面積為:滿足最小配筋率。故,屬于大偏心受壓。故,選取820鋼筋(AS=As’=2513mm2),箍筋取10@200鋼筋。4)斜截面受剪承載力驗(yàn)算由于剪跨比λ=3.33>3,取3故,取N=2752.750kN,水平分布鋼筋為雙排14@200鋼筋。滿足要求。整體墻YSW-2的配筋表如表8-7所示。表8-7整體墻YSW-2各層配筋表樓層分布鋼筋縱筋箍筋1-714@20082010@2008.2.3整體小開(kāi)口墻YSW-11截面設(shè)計(jì)8.2.3.1左墻肢截面設(shè)計(jì)YSW-11的左墻肢在非震和地震情況下的最不利內(nèi)力組合值為:非震情況下:M=1.378kN·mN=252.850kNV=1.221kN地震情況下:M=1018.510kN·mN=3368.319kN左震N=3866.609kN右震V=127.810kN截面尺寸驗(yàn)算剪跨比:滿足要求。正截面偏心受壓承載力驗(yàn)算屬于小偏心受壓。對(duì)AS采用920,As=2827mm2,As’采用918,As’=2290mm2。斜截面受剪承載力驗(yàn)算剪跨比λ取3故,取N=3866.609kN,水平分布鋼筋為雙排8@200。滿足要求。8.2.3.2右墻肢截面設(shè)計(jì)YSW-11的右墻在非震和地震情況下的最不利內(nèi)力組合值為:非震情況下:M=78.480kN·mN=914.847kNV=9.601kN地震情況下:M=58019.900kN·mN=3866.609kN左震N=3368.319kN右震V=1005.258kN截面尺寸驗(yàn)算剪力墻截面有效高度:剪跨比:調(diào)整后剪力:由于λ>3,故滿足要求。2)軸壓比驗(yàn)算滿足要求。3)正截面偏心受壓承載力驗(yàn)算墻體豎向分布鋼筋選取雙排12@200,由于(2320-250×2-200)/200=8.1,故布置9×2=18根分布鋼筋,則豎向分布鋼筋的面積為:滿足最小配筋率。屬于小偏心受壓。故,鋼筋選取318,As=As’=763mm2,箍筋取10@110。4)斜截面受剪承載力驗(yàn)算剪跨比λ>3,取λ=3故,取N=3866.609kN,水平分布鋼筋為雙排10@200。滿足要求。8.2.3.3連梁截面設(shè)計(jì)YSW-11的連梁在水平地震作用下的最不利組合值為:M=496.470kN·m,V=746.572kN1)截面尺寸驗(yàn)算連梁的剪力設(shè)計(jì)值應(yīng)進(jìn)行調(diào)整,連梁剪力增大系數(shù)取1.0,故連梁的跨高比,故不滿足要求,取連梁高度尺寸為900mm,得滿足要求。2)正截面抗彎承載力驗(yàn)算則連梁縱向鋼筋選取422+225,As=As’=2502mm2。3)斜截面受剪力承載力驗(yàn)算根據(jù)構(gòu)造要求,箍筋選取雙肢8@100鋼筋,則滿足要求。整體小開(kāi)口墻YSW-11的各層配筋表如表8-8所示。表8-8YSW-11各層配筋表樓層左墻肢右墻肢連梁分布鋼筋縱筋箍筋分布鋼筋縱筋箍筋縱筋箍筋6@200622+6810@11010@20022210@110422+2258@1009樓梯設(shè)計(jì)9.1樓梯基本參數(shù)樓梯平面圖如圖9-1所示。樓梯開(kāi)間為2700mm,進(jìn)深為4300mm,樓梯高度為3150mm,梯間寬為2500mm,梯段寬1200mm,井寬100mm,平臺(tái)寬度1200mm。每層樓梯踏步總數(shù)為18,上下踏步數(shù)均為9,踏步尺寸為157.5mm×260mm?;炷敛捎肅30級(jí),縱向、水平鋼筋及箍筋采用HRB400級(jí)鋼筋。構(gòu)件材料性能如表9-1所示。圖9-1樓梯平面圖表9-1構(gòu)件材料性能構(gòu)件材料材料力學(xué)性能樓梯C30混凝土樓板HRB400梁HRB4009.2梯段板設(shè)計(jì)由于梯段板的厚度約為板斜長(zhǎng)的1/30,取梯段
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