【某賓館結(jié)構(gòu)布置截面確定計(jì)算案例】

第第某賓館結(jié)構(gòu)布置截面確定計(jì)算案例綜述1.1結(jié)構(gòu)布置方案梁、柱布置圖1.1。選取10軸線計(jì)算，計(jì)算對應(yīng)圖1.2。1.1結(jié)構(gòu)布置圖圖2-2計(jì)算單元選取1.2截面尺寸確定1．梁截面尺寸確定梁高確定，寬度，跨比不大按經(jīng)驗(yàn)取，如下圖1.1所示，據(jù)估算得梁所有截面尺寸。表1.1梁截面尺寸表(mm)構(gòu)件種類l0l0/8l0/12hh/2h/3bb×hAB梁6000.0750.0500.0650.0325.0217.0300.0300×650BC梁2000.0250.0166.66667550.0275.0183.0300.0300×550CD梁6000.0750.0500.0650.0325.0217.0300.0300×650A梁80001000666.66667550275183300300×550B梁80001000666.66667550275183300300×550C梁80001000666.66667550275183300300×550D梁80001000666.66667550275183300300×550次梁7200400600550275183250250×5501.柱截面尺寸確定B柱面積計(jì)算取s=16/2×(6+3)/2=36m2B柱軸力估算取值N=γGqsnα1α2β=16/2×(6+3)/2=36m2EQ\F(3810×103,0.85×14.3)=5602mm2表1.2柱子軸力估算柱號γGqsna1a2βN(kN)A柱1.2142461.051.112794.176B柱1.2143661.05113810.24C柱1.2143661.05113810.24D柱1.2142461.051.112794.176表1.3柱子截面尺寸柱類別N/kNμN(yùn)fc/N/mm2Ac/mm2bc/mmhc/mm截面尺寸A2794.00.85014.30229864.0479.0479.0500×500B3810.00.85014.30313451.0560.0560.0500×500C3810.00.85014.30313451.0560.0560.0500×500D27940.8514.3229864479479500×500

3.板厚度確定根據(jù)規(guī)范，屋面取板厚90mm，樓面取板厚90mm。1.3確定結(jié)構(gòu)計(jì)算簡圖圖2-3⑩軸框架計(jì)算簡圖1.4梁、柱線剛度計(jì)算混凝土C30，Ec＝3×10kN/㎡框架結(jié)構(gòu)中，考慮到現(xiàn)澆樓面可做有效翼緣，可取邊框架梁I＝1.5I0；取中框架梁I0＝1.0I0。梁線剛度：，柱線剛度，梁彈性模量Eb=30000000kPa，柱彈性模量Ec=30000000kPaEQ框架梁線剛度：，EQ柱線剛度，EQ梁彈性模量Eb=30000000kPa，柱彈性模量Ec=30000000kPaEQAB框架梁線剛度EQ\F(2×30000000×0.3×0.63,12×7)=46286kN/mEQBC框架梁線剛度EQ\F(2×30000000×0.3×0.53,12×3)=62500kN/mEQCD框架梁線剛度EQ\F(2×30000000×0.3×0.63,12×7)=46286kN/mEQ標(biāo)準(zhǔn)層軸框架柱線剛度EQ\F(30000000×0.5×0.53,12×3.6)=43403kN/mEQ底層軸框架柱線剛度EQ\F(