按結構形(xing)式(shi)和(he)受(shou)力(li)特(te)點(dian)樓梯形(xing)式(shi)可(ke)分為(wei)板式(shi)、梁式(shi)、懸(xuan)挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩(liang)種屬于平面受(shou)力(li)體(ti)系，后(hou)兩(liang)種則為(wei)空間受(shou)力(li)體(ti)系。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)、平(ping)(ping)臺板(ban)(ban)和平(ping)(ping)臺梁組(zu)成(cheng)。梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)是一塊帶(dai)踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上、下平(ping)(ping)臺梁上，底層下端支承在地壟墻上。板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)的優點是梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)下表面平(ping)(ping)整，支模簡單(dan);其缺(que)點是梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)跨(kua)(kua)度(du)較(jiao)大時(shi)，斜(xie)板(ban)(ban)厚度(du)較(jiao)大，結構(gou)材料用量較(jiao)多。因此(ci)板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)適(shi)用于可變荷載(zai)較(jiao)小、梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)跨(kua)(kua)度(du)一般不大于3m的情(qing)況。