按結構形(xing)式(shi)(shi)和受力(li)(li)特點樓梯形(xing)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(zhong)屬于平面受力(li)(li)體系，后兩(liang)種(zhong)則為空(kong)間受力(li)(li)體系。

板(ban)(ban)式(shi)樓梯(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(kuai)帶(dai)踏(ta)步的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上、下(xia)平(ping)臺(tai)梁上，底(di)層下(xia)端支承在地壟墻上。板(ban)(ban)式(shi)樓梯(ti)的(de)優點(dian)是(shi)梯(ti)段板(ban)(ban)下(xia)表面平(ping)整，支模簡單;其(qi)缺點(dian)是(shi)梯(ti)段板(ban)(ban)跨度(du)較(jiao)大(da)時，斜(xie)板(ban)(ban)厚度(du)較(jiao)大(da)，結構材(cai)料用量(liang)較(jiao)多。因此(ci)板(ban)(ban)式(shi)樓梯(ti)適(shi)用于可變荷載較(jiao)小(xiao)、梯(ti)段板(ban)(ban)跨度(du)一般不(bu)大(da)于3m的(de)情況(kuang)。