按結構形(xing)式(shi)和(he)受力(li)特點樓梯(ti)形(xing)式(shi)可分為(wei)板式(shi)、梁式(shi)、懸(xuan)挑(剪刀(dao))式(shi)和(he)螺旋(xuan)式(shi)，前兩(liang)種屬于平(ping)面(mian)受力(li)體系，后(hou)兩(liang)種則為(wei)空間受力(li)體系。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁組(zu)成。梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)是一(yi)塊帶踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上(shang)、下平臺(tai)梁上(shang)，底層下端支承在地壟墻上(shang)。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(mian)平整(zheng)，支模簡單;其(qi)缺點是梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)跨度(du)較(jiao)大(da)時，斜(xie)板(ban)(ban)厚(hou)度(du)較(jiao)大(da)，結構材(cai)料用(yong)量(liang)較(jiao)多(duo)。因此板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)適用(yong)于可變(bian)荷載較(jiao)小、梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)跨度(du)一(yi)般不(bu)大(da)于3m的情況。