任務(wù)十-樓梯的構(gòu)造與識(shí)圖教學(xué)課件

任務(wù)十樓梯的構(gòu)造與識(shí)圖Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL第一節(jié)樓梯的組成和類(lèi)型及尺度樓梯的組成梯段踏步數(shù)3~18間平臺(tái)樓梯平臺(tái)樓層平臺(tái)桿扶安全保護(hù)構(gòu)件Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL欄桿執(zhí)手樓梯組成示意樓層平臺(tái)中間平臺(tái)梯段Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL(一)樓梯梯段設(shè)有踏步供建筑物樓層之間上下通行的通道稱(chēng)為梯段踏步又分為:踏面(供行走時(shí)踏腳的水平部分)踢面(形成踏步高差的垂直部分)每個(gè)梯段的踏步不應(yīng)超過(guò)18級(jí),但也不應(yīng)少于3級(jí)。從受力情況分為板式梯段和梁式梯段平臺(tái)板躋步平臺(tái)板樓段板平臺(tái)梁梯段斜梁Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL(二)梯段平臺(tái)樓梯平臺(tái)是指連接兩梯段之間的水平部分平臺(tái)用做樓梯轉(zhuǎn)折、連通某個(gè)樓層或供使用者稍事休息。樓層平臺(tái):與樓層標(biāo)高相一致的平臺(tái)稱(chēng)為,中間平臺(tái)(休息平臺(tái)):介于兩個(gè)樓層之間的平臺(tái)稱(chēng)之為。Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL(三)欄桿扶手欄桿是設(shè)置在樓梯梯段和平臺(tái)邊緣處起安全保障的圍護(hù)構(gòu)件扶手一般設(shè)于欄桿頂部,也可附設(shè)于墻上稱(chēng)為靠墻扶手。樓梯應(yīng)至少一側(cè)設(shè)扶手,梯段凈寬達(dá)三股人流時(shí)應(yīng)兩側(cè)設(shè)扶手,達(dá)四股人流時(shí)宜加設(shè)中間扶手少必樓梯欄桿的形式Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL、樓梯的類(lèi)型廠生要樓梯換使用功能分類(lèi)」輔助樓廠防樓梯木樓梯鋼樓梯廠燕體式樓按村料分鋼筋混凝土樓梯裝配式樓梯組合樓梯Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL直行單跑樓梯單跑樓梯直行雙跑樓梯平行雙跑樓梯雙跑樓梯曲尺形三跑樓梯按平面形式分類(lèi)角形三跑樓梯跑和多跑樓轉(zhuǎn)角三跑樓梯剪力樓梯長(zhǎng)其他形式樓交叉樓梯Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL直形單跑螺旋單跑弧形單跑折形單跑Evaluadononly.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2019-2019AsposePtyL直形雙跑平行雙跑雙分式Evaluadononly.chAsposeslidesforNET4odien