按結構形式(shi)(shi)(shi)(shi)和(he)(he)受(shou)(shou)力(li)(li)特點樓梯形式(shi)(shi)(shi)(shi)可分為(wei)板式(shi)(shi)(shi)(shi)、梁(liang)式(shi)(shi)(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)(shi)(shi)和(he)(he)螺(luo)旋式(shi)(shi)(shi)(shi)，前(qian)兩種屬(shu)于(yu)平(ping)面受(shou)(shou)力(li)(li)體系(xi)，后兩種則(ze)為(wei)空間受(shou)(shou)力(li)(li)體系(xi)。

板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)(lou)梯是由梯段(duan)板(ban)(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)(ban)和平(ping)臺梁組(zu)成。梯段(duan)板(ban)(ban)(ban)(ban)(ban)是一塊帶踏步的斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支(zhi)承于(yu)上、下平(ping)臺梁上，底層下端支(zhi)承在地(di)壟墻上。板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)(lou)梯的優點是梯段(duan)板(ban)(ban)(ban)(ban)(ban)下表(biao)面平(ping)整，支(zhi)模簡單;其缺點是梯段(duan)板(ban)(ban)(ban)(ban)(ban)跨度較(jiao)(jiao)大(da)時，斜板(ban)(ban)(ban)(ban)(ban)厚(hou)度較(jiao)(jiao)大(da)，結構(gou)材料用(yong)(yong)量較(jiao)(jiao)多(duo)。因此(ci)板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)(lou)梯適用(yong)(yong)于(yu)可變荷載較(jiao)(jiao)小、梯段(duan)板(ban)(ban)(ban)(ban)(ban)跨度一般不大(da)于(yu)3m的情況。