按(an)結構形式(shi)和受力(li)特點(dian)樓(lou)梯(ti)形式(shi)可分為板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和螺旋式(shi)，前兩(liang)種(zhong)屬于平(ping)面(mian)受力(li)體系，后兩(liang)種(zhong)則為空間受力(li)體系。

板(ban)(ban)式(shi)樓(lou)梯(ti)是(shi)由梯(ti)段板(ban)(ban)、平(ping)臺(tai)板(ban)(ban)和平(ping)臺(tai)梁組成。梯(ti)段板(ban)(ban)是(shi)一塊帶踏(ta)步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承(cheng)于上、下(xia)平(ping)臺(tai)梁上，底層下(xia)端支承(cheng)在地壟墻上。板(ban)(ban)式(shi)樓(lou)梯(ti)的優(you)點是(shi)梯(ti)段板(ban)(ban)下(xia)表面(mian)平(ping)整，支模簡單;其缺點是(shi)梯(ti)段板(ban)(ban)跨度(du)較(jiao)大(da)(da)時(shi)，斜(xie)板(ban)(ban)厚度(du)較(jiao)大(da)(da)，結構材料用(yong)量(liang)較(jiao)多。因(yin)此(ci)板(ban)(ban)式(shi)樓(lou)梯(ti)適用(yong)于可變荷載較(jiao)小(xiao)、梯(ti)段板(ban)(ban)跨度(du)一般不大(da)(da)于3m的情況。