樓梯形(xing)式

樓梯按梯段可分為(wei)單跑(pao)(pao)樓梯、雙跑(pao)(pao)樓梯和(he)多跑(pao)(pao)樓梯。梯段的平面形狀(zhuang)有(you)直(zhi)線的、折線的和(he)曲線的。

單跑(pao)(pao)樓梯(ti)(ti)最(zui)為簡單，適(shi)(shi)(shi)合于(yu)(yu)(yu)層高(gao)較低的建(jian)筑(zhu);雙(shuang)(shuang)跑(pao)(pao)樓梯(ti)(ti)最(zui)為常見，有雙(shuang)(shuang)跑(pao)(pao)直上(shang)(shang)、雙(shuang)(shuang)跑(pao)(pao)曲(qu)折(zhe)、雙(shuang)(shuang)跑(pao)(pao)對折(zhe)(平行)等，適(shi)(shi)(shi)用(yong)于(yu)(yu)(yu)一般(ban)民用(yong)建(jian)筑(zhu)和工業(ye)建(jian)筑(zhu);三(san)跑(pao)(pao)樓梯(ti)(ti)有三(san)折(zhe)式(shi)、丁(ding)字式(shi)、分合式(shi)等，多(duo)用(yong)于(yu)(yu)(yu)公共建(jian)筑(zhu);剪(jian)刀樓梯(ti)(ti)系(xi)由一對方向相反(fan)的雙(shuang)(shuang)跑(pao)(pao)平行梯(ti)(ti)組成，或由一對互相重疊(die)而又不連(lian)通(tong)(tong)的單跑(pao)(pao)直上(shang)(shang)梯(ti)(ti)構成，剖面(mian)呈交叉的剪(jian)刀形(xing)(xing)(xing)，能同時通(tong)(tong)過較多(duo)的人(ren)流并節省空間;螺(luo)旋轉梯(ti)(ti)是(shi)以(yi)扇形(xing)(xing)(xing)踏步支(zhi)承(cheng)(cheng)在中立(li)柱上(shang)(shang)，雖行走欠舒適(shi)(shi)(shi)，但(dan)節省空間，適(shi)(shi)(shi)用(yong)于(yu)(yu)(yu)人(ren)流較少(shao)，使(shi)用(yong)不頻(pin)繁的場(chang)所;圓形(xing)(xing)(xing)、半圓形(xing)(xing)(xing)、弧形(xing)(xing)(xing)樓梯(ti)(ti)，由曲(qu)梁或曲(qu)板支(zhi)承(cheng)(cheng)，踏步略呈扇形(xing)(xing)(xing)，花式(shi)多(duo)樣(yang)，造型活潑，富于(yu)(yu)(yu)裝飾性，適(shi)(shi)(shi)用(yong)于(yu)(yu)(yu)公共建(jian)筑(zhu)。