門式鋼架常見設(shè)計(jì)問(wèn)題課件

門式剛架常見問(wèn)題及其改進(jìn)措施中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院張運(yùn)田教授級(jí)高工門式剛架常見問(wèn)題13.1基本設(shè)計(jì)規(guī)定常見問(wèn)題3.1.6鋼柱腳未采用混凝土包裹防護(hù)3.1基本設(shè)計(jì)規(guī)定常見問(wèn)題2改進(jìn)措施原因分析:許多事例表明地面以下的鋼柱腳若不用混凝土包裹,柱腳處由于積水使鋼材嚴(yán)重銹蝕,對(duì)結(jié)構(gòu)存在著安全隱患,因此《鋼結(jié)構(gòu)規(guī)范》GB50017對(duì)地面以下的鋼柱腳用混凝土進(jìn)行包裹列為強(qiáng)制性條文。改進(jìn)措施3●改進(jìn)措施:應(yīng)按《鋼結(jié)構(gòu)規(guī)范》第8.9.3條(強(qiáng)制性條文)規(guī)定,對(duì)柱腳在地面以下部分采用強(qiáng)度等級(jí)較低的混凝土包裹(保護(hù)層厚度不應(yīng)小于50mm),包裹的混凝土應(yīng)高出地面不小于150m。當(dāng)柱腳底面在地面以上時(shí),柱腳高出地面的高度不應(yīng)小于100mm。●改進(jìn)措施:應(yīng)按《鋼結(jié)構(gòu)規(guī)范》第8.9.3條43.1基本設(shè)計(jì)規(guī)定常見問(wèn)題●3.1.7在房屋的溫度區(qū)段內(nèi),未設(shè)置能獨(dú)立構(gòu)成空間穩(wěn)定結(jié)構(gòu)的支撐體系。3.1基本設(shè)計(jì)規(guī)定常見問(wèn)題5改進(jìn)措施結(jié)構(gòu)布置時(shí),在溫度區(qū)段內(nèi)應(yīng)使結(jié)構(gòu)成為能保持空間穩(wěn)定的獨(dú)立體系,按《門式剛架規(guī)程》CECS102第4.5.1條第1款設(shè)置支撐體系。改進(jìn)措施63.2支撐體系常見問(wèn)題●3.2.1屋面橫向水平支撐與柱間支撐未布置在同一跨間內(nèi)。3.2支撐體系常見問(wèn)題7改進(jìn)措施●原因分析:布置在同一跨間內(nèi)的屋面橫向水平支撐和柱間支撐同門式剛架一道構(gòu)成穩(wěn)定的空間結(jié)構(gòu)體系,既可承受和傳遞房屋縱向的各種荷載和作用,又方便于門式剛架結(jié)構(gòu)的施工安裝。改進(jìn)措施8●改進(jìn)措施:根據(jù)《門式剛架規(guī)程》CECS102第4.5.1條第2款和第4.5.2條第1款的規(guī)定宜將屋面橫向水平支撐和柱間支撐同時(shí)布置在房屋溫度區(qū)段端部第一開間或第二開間,在布置柱間支撐的開間,宜同時(shí)布置屋面橫向水平支撐,如圖3.2.1所示。當(dāng)無(wú)法布置在同一跨間時(shí),可布置在相鄰跨間,有一定搭接區(qū),但這種情況在溫度區(qū)段內(nèi)只能是個(gè)別的,否則應(yīng)對(duì)整個(gè)支撐系統(tǒng)重新合理布置?！窀倪M(jìn)措施:根據(jù)《門式剛架規(guī)程》CECS1029(a)屋面橫向水平支撐及剛性系桿剛架斜梁屋面橫向木平支撐剛性豎腹桿30.0~45.0m通長(zhǎng)剛性系桿()柱間支撐(無(wú)吊車)柱間支撐(無(wú)吊車)6.900900090009000900圖3.2.1門式剛架支撐布置示意圖圖3.2.1門式剛架支撐布置示意圖(a)屋面橫向水平支撐及剛性系桿10門式鋼架常見設(shè)計(jì)問(wèn)題課件11門式鋼架常見設(shè)計(jì)問(wèn)題課件12門式鋼架常見設(shè)計(jì)問(wèn)題課件13門式鋼架常見設(shè)計(jì)問(wèn)題課件14門式鋼架常見設(shè)計(jì)問(wèn)題課件15門式鋼架常見設(shè)計(jì)問(wèn)題課件16門式鋼架常見設(shè)計(jì)問(wèn)題課件17門式鋼架常見設(shè)計(jì)問(wèn)題課件18門式鋼架常見設(shè)計(jì)問(wèn)題課件19門式鋼架常見設(shè)計(jì)問(wèn)題課件20門式鋼架常見設(shè)計(jì)問(wèn)題課件21門式鋼架常見設(shè)計(jì)問(wèn)題課件22門式鋼架常見設(shè)計(jì)問(wèn)題課件23門式鋼架常見設(shè)計(jì)問(wèn)題課件24門式鋼架常見設(shè)計(jì)問(wèn)題課件25門式鋼架常見設(shè)計(jì)問(wèn)題課件26門式鋼架常見設(shè)計(jì)問(wèn)題課件27門式鋼架常見設(shè)計(jì)問(wèn)題課件28門式鋼架常見設(shè)計(jì)問(wèn)題課件29門式鋼架常見設(shè)計(jì)問(wèn)題課件30門式鋼架常見設(shè)計(jì)問(wèn)題課件31門式鋼架常見設(shè)計(jì)問(wèn)題課件32門式鋼架常見設(shè)計(jì)問(wèn)題課件33門式鋼架常見設(shè)計(jì)問(wèn)題課件34門式鋼架常見設(shè)計(jì)問(wèn)題課件35門式鋼架常見設(shè)計(jì)問(wèn)題課件36門式鋼架常見設(shè)計(jì)問(wèn)題課件37門式鋼架常見設(shè)計(jì)問(wèn)題課件38門式鋼架常見設(shè)計(jì)問(wèn)題課件39門式鋼架常見設(shè)計(jì)問(wèn)題課件40門式鋼架常見設(shè)計(jì)問(wèn)題課件41門式鋼架常見設(shè)計(jì)問(wèn)題課件42門式鋼架常見設(shè)計(jì)問(wèn)題課件43門式鋼架常見設(shè)計(jì)問(wèn)題課件44門式鋼架常見設(shè)計(jì)問(wèn)題課件45門式鋼架常見設(shè)計(jì)問(wèn)題課件46門式鋼架常見設(shè)計(jì)問(wèn)題課件47門式鋼架常見設(shè)計(jì)問(wèn)題課件48門式鋼架常見設(shè)計(jì)問(wèn)題課件49門式鋼架常見設(shè)計(jì)問(wèn)題課件50門式鋼架常見設(shè)計(jì)問(wèn)題課件51門式鋼架常見設(shè)計(jì)問(wèn)題課件52門式鋼架常見設(shè)計(jì)問(wèn)題課件53門式鋼架常見設(shè)計(jì)問(wèn)題課件54門式鋼架常見設(shè)計(jì)問(wèn)題課件55門式鋼架常見設(shè)計(jì)問(wèn)題課件56門式鋼架常見設(shè)計(jì)問(wèn)題課件57門式鋼架常見設(shè)計(jì)問(wèn)題課件58門式鋼架常見設(shè)計(jì)問(wèn)題課件59門式鋼架常見設(shè)計(jì)問(wèn)題課件60門式鋼架常見設(shè)計(jì)問(wèn)題課件61門式鋼架常見設(shè)計(jì)問(wèn)題課件62門式鋼架常見設(shè)計(jì)問(wèn)題課件63門式鋼架常見設(shè)計(jì)問(wèn)題課件64門式鋼架常見設(shè)計(jì)問(wèn)題課件65門式鋼架常見設(shè)計(jì)問(wèn)題課件66門式鋼架常見設(shè)計(jì)問(wèn)題課件67門式鋼架常見設(shè)計(jì)問(wèn)題課件68門式鋼架常見設(shè)計(jì)問(wèn)題課件69門式鋼架常見設(shè)計(jì)問(wèn)題課件70門式鋼架常見設(shè)計(jì)問(wèn)題課件71門式鋼架常見設(shè)計(jì)問(wèn)題課件72門式鋼架常見設(shè)計(jì)問(wèn)題課件73門式鋼架常見設(shè)計(jì)問(wèn)題課件74門式鋼架常見設(shè)計(jì)問(wèn)題課件75門式鋼架常見設(shè)計(jì)問(wèn)題課件76門式鋼架常見設(shè)計(jì)問(wèn)題課件77門式鋼架常見設(shè)計(jì)問(wèn)題課件78門式鋼架常見設(shè)計(jì)問(wèn)題課件79門式鋼架常見設(shè)計(jì)問(wèn)題課件80門式鋼架常見設(shè)計(jì)問(wèn)題課件81門式鋼架常見設(shè)計(jì)問(wèn)題課件82門式鋼架常見設(shè)計(jì)問(wèn)題課件83門式鋼架常見設(shè)計(jì)問(wèn)題課件84門式鋼架常見設(shè)計(jì)問(wèn)題課件85門式鋼架常見設(shè)計(jì)問(wèn)題課件86門式鋼架常見設(shè)計(jì)問(wèn)題課件87門式鋼架常見設(shè)計(jì)問(wèn)題課件88門式鋼架常見設(shè)計(jì)問(wèn)題課件89門式鋼架常見設(shè)計(jì)問(wèn)題課件90門式剛架常見問(wèn)題及其改進(jìn)措施中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院張運(yùn)田教授級(jí)高工門式剛架常見問(wèn)題913.1基本設(shè)計(jì)規(guī)定常見問(wèn)題3.1.6鋼柱腳未采用混凝土包裹防護(hù)3.1基本設(shè)計(jì)規(guī)定常見問(wèn)題92改進(jìn)措施原因分析:許多事例表明地面以下的鋼柱腳若不用混凝土包裹,柱腳處由于積水使鋼材嚴(yán)重銹蝕,對(duì)結(jié)構(gòu)存在著安全隱患,因此《鋼結(jié)構(gòu)規(guī)范》GB50017對(duì)地面以下的鋼柱腳用混凝土進(jìn)行包裹列為強(qiáng)制性條文。改進(jìn)措施93●改進(jìn)措施:應(yīng)按《鋼結(jié)構(gòu)規(guī)范》第8.9.3條(強(qiáng)制性條文)規(guī)定,對(duì)柱腳在地面以下部分采用強(qiáng)度等級(jí)較低的混凝土包裹(保護(hù)層厚度不應(yīng)小于50mm),包裹的混凝土應(yīng)高出地面不小于150m。當(dāng)柱腳底面在地面以上時(shí),柱腳高出地面的高度不應(yīng)小于100mm?！窀倪M(jìn)措施:應(yīng)按《鋼結(jié)構(gòu)規(guī)范》第8.9.3條943.1基本設(shè)計(jì)規(guī)定常見問(wèn)題●3.1.7在房屋的溫度區(qū)段內(nèi),未設(shè)置能獨(dú)立構(gòu)成空間穩(wěn)定結(jié)構(gòu)的支撐體系。3.1基本設(shè)計(jì)規(guī)定常見問(wèn)題95改進(jìn)措施結(jié)構(gòu)布置時(shí),在溫度區(qū)段內(nèi)應(yīng)使結(jié)構(gòu)成為能保持空間穩(wěn)定的獨(dú)立體系,按《門式剛架規(guī)程》CECS102第4.5.1條第1款設(shè)置支撐體系。改進(jìn)措施963.2支撐體系常見問(wèn)題●3.2.1屋面橫向水平支撐與柱間支撐未布置在同一跨間內(nèi)。3.2支撐體系常見問(wèn)題97改進(jìn)措施●原因分析:布置在同一跨間內(nèi)的屋面橫向水平支撐和柱間支撐同門式剛架一道構(gòu)成穩(wěn)定的空間結(jié)構(gòu)體系,既可承受和傳遞房屋縱向的各種荷載和作用,又方便于門式剛架結(jié)構(gòu)的施工安裝。改進(jìn)措施98●改進(jìn)措施:根據(jù)《門式剛架規(guī)程》CECS102第4.5.1條第2款和第4.5.2條第1款的規(guī)定宜將屋面橫向水平支撐和柱間支撐同時(shí)布置在房屋溫度區(qū)段端部第一開間或第二開間,在布置柱間支撐的開間,宜同時(shí)布置屋面橫向水平支撐,如圖3.2.1所示。當(dāng)無(wú)法布置在同一跨間時(shí),可布置在相鄰跨間,有一定搭接區(qū),但這種情況在溫度區(qū)段內(nèi)只能是個(gè)別的,否則應(yīng)對(duì)整個(gè)支撐系統(tǒng)重新合理布置?！窀倪M(jìn)措施:根據(jù)《門式剛架規(guī)程》CECS10299(a)屋面橫向水平支撐及剛性系桿剛架斜梁屋面橫向木平支撐剛性豎腹桿30.0~45.0m通長(zhǎng)剛性系桿()柱間支撐(無(wú)吊車)柱間支撐(無(wú)吊車)6.900900090009000900圖3.2.1門式剛架支撐布置示意圖圖3.2.1門式剛架支撐布置示意圖(a)屋面橫向水平支撐及剛性系桿100門式鋼架常見設(shè)計(jì)問(wèn)題課件101門式鋼架常見設(shè)計(jì)問(wèn)題課件102門式鋼架常見設(shè)計(jì)問(wèn)題課件103門式鋼架常見設(shè)計(jì)問(wèn)題課件104門式鋼架常見設(shè)計(jì)問(wèn)題課件105門式鋼架常見設(shè)計(jì)問(wèn)題課件106門式鋼架常見設(shè)計(jì)問(wèn)題課件107門式鋼架常見設(shè)計(jì)問(wèn)題課件108門式鋼架常見設(shè)計(jì)問(wèn)題課件109門式鋼架常見設(shè)計(jì)問(wèn)題課件110門式鋼架常見設(shè)計(jì)問(wèn)題課件111門式鋼架常見設(shè)計(jì)問(wèn)題課件112門式鋼架常見設(shè)計(jì)問(wèn)題課件113門式鋼架常見設(shè)計(jì)問(wèn)題課件114門式鋼架常見設(shè)計(jì)問(wèn)題課件115門式鋼架常見設(shè)計(jì)問(wèn)題課件116門式鋼架常見設(shè)計(jì)問(wèn)題課件117門式鋼架常見設(shè)計(jì)問(wèn)題課件118門式鋼架常見設(shè)計(jì)問(wèn)題課件119門式鋼架常見設(shè)計(jì)問(wèn)題課件120門式鋼架常見設(shè)計(jì)問(wèn)題課件121門式鋼架常見設(shè)計(jì)問(wèn)題課件122門式鋼架常見設(shè)計(jì)問(wèn)題課件123門式鋼架常見設(shè)計(jì)問(wèn)題課件124門式鋼架常見設(shè)計(jì)問(wèn)題課件125門式鋼架常見設(shè)計(jì)問(wèn)題課件126門式鋼架常見設(shè)計(jì)問(wèn)題課件127門式鋼架常見設(shè)計(jì)問(wèn)題課件128門式鋼架常見設(shè)計(jì)問(wèn)題課件129門式鋼架常見設(shè)計(jì)問(wèn)題課件130門式鋼架常見設(shè)計(jì)問(wèn)題課件131門式鋼架常見設(shè)計(jì)問(wèn)題課件132門式鋼架常見設(shè)計(jì)問(wèn)題課件133門式鋼架常見設(shè)計(jì)問(wèn)題課件134門式鋼架常見設(shè)計(jì)問(wèn)題課件135門式鋼架常見設(shè)計(jì)問(wèn)題課件136門式鋼架常見設(shè)計(jì)問(wèn)題課件137門式鋼架常見設(shè)計(jì)問(wèn)題課件138門式鋼架常見設(shè)計(jì)問(wèn)題課件139門式鋼架常見設(shè)計(jì)問(wèn)題課件140門式鋼架常見設(shè)計(jì)問(wèn)題課件141門式鋼架常見設(shè)計(jì)問(wèn)題課件142門式鋼架常見設(shè)計(jì)問(wèn)題課件143門式鋼架常見設(shè)計(jì)問(wèn)題課件144門式鋼架常見設(shè)計(jì)問(wèn)題課件145門式鋼架常見設(shè)計(jì)問(wèn)題課件146門式鋼架常見設(shè)計(jì)問(wèn)題課件147門式鋼架常見設(shè)計(jì)問(wèn)題課件148門式鋼架常見設(shè)計(jì)問(wèn)題課件149門式鋼架常見設(shè)計(jì)問(wèn)題課件150門式鋼架常見設(shè)計(jì)問(wèn)題課件151門式鋼架常見設(shè)計(jì)問(wèn)題課件152門式鋼架常見設(shè)計(jì)問(wèn)題課件153門式鋼架常見設(shè)計(jì)問(wèn)題課件154門式鋼架常見設(shè)計(jì)問(wèn)題課件155門式鋼架常見設(shè)計(jì)問(wèn)題課件156門式鋼架常見設(shè)計(jì)問(wèn)題課件157門式鋼架常見設(shè)計(jì)問(wèn)題課件158門式鋼架常見設(shè)計(jì)問(wèn)題課件159門式鋼架常見設(shè)計(jì)問(wèn)題課件160門式鋼架常見設(shè)計(jì)問(wèn)題課件161門式鋼架常見設(shè)計(jì)問(wèn)題課件162門式鋼架常見設(shè)計(jì)問(wèn)題課件163門式鋼架常見設(shè)計(jì)問(wèn)題課件164門式鋼架常見設(shè)計(jì)問(wèn)題課件165門式鋼架常見設(shè)計(jì)問(wèn)題課件166門式