按(an)結構形(xing)式(shi)(shi)和(he)受(shou)力特(te)點樓(lou)梯形(xing)式(shi)(shi)可分(fen)為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪(jian)刀)式(shi)(shi)和(he)螺旋(xuan)式(shi)(shi)，前兩(liang)種屬(shu)于平面受(shou)力體(ti)系，后兩(liang)種則為空間受(shou)力體(ti)系。

板(ban)(ban)式(shi)樓(lou)梯是(shi)由(you)梯段板(ban)(ban)、平(ping)(ping)臺(tai)板(ban)(ban)和平(ping)(ping)臺(tai)梁組(zu)成。梯段板(ban)(ban)是(shi)一(yi)塊(kuai)帶踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)承于上、下(xia)(xia)平(ping)(ping)臺(tai)梁上，底(di)層(ceng)下(xia)(xia)端支(zhi)承在地壟墻上。板(ban)(ban)式(shi)樓(lou)梯的優點(dian)是(shi)梯段板(ban)(ban)下(xia)(xia)表面平(ping)(ping)整，支(zhi)模簡(jian)單;其(qi)缺(que)點(dian)是(shi)梯段板(ban)(ban)跨度(du)較(jiao)大時，斜(xie)板(ban)(ban)厚度(du)較(jiao)大，結構材料用(yong)量(liang)較(jiao)多。因此板(ban)(ban)式(shi)樓(lou)梯適用(yong)于可變荷載較(jiao)小、梯段板(ban)(ban)跨度(du)一(yi)般不(bu)大于3m的情況。