按結(jie)構形式(shi)(shi)和受(shou)力(li)特(te)點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)種屬(shu)于平面受(shou)力(li)體系(xi)(xi)，后兩(liang)種則(ze)為空間(jian)受(shou)力(li)體系(xi)(xi)。

板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是由(you)梯(ti)(ti)段板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)段板(ban)(ban)(ban)是一塊帶踏(ta)步(bu)的斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支承于(yu)上、下平(ping)臺梁上，底層下端支承在地壟墻上。板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優點是梯(ti)(ti)段板(ban)(ban)(ban)下表面平(ping)整，支模(mo)簡單(dan);其缺點是梯(ti)(ti)段板(ban)(ban)(ban)跨(kua)度(du)較大時，斜(xie)板(ban)(ban)(ban)厚度(du)較大，結構(gou)材(cai)料用(yong)量(liang)較多。因此板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用(yong)于(yu)可變(bian)荷載較小(xiao)、梯(ti)(ti)段板(ban)(ban)(ban)跨(kua)度(du)一般不大于(yu)3m的情(qing)況。