按結構形式和受力(li)特(te)點(dian)樓梯形式可(ke)分為板(ban)式、梁(liang)式、懸挑(剪(jian)刀)式和螺旋式，前兩種屬于平面(mian)受力(li)體系，后(hou)兩種則為空間受力(li)體系。

板(ban)(ban)式樓(lou)梯(ti)是(shi)由梯(ti)段(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁組成。梯(ti)段(duan)板(ban)(ban)是(shi)一塊(kuai)帶踏步(bu)的斜板(ban)(ban)，斜板(ban)(ban)支承于上(shang)、下平(ping)臺梁上(shang)，底層下端支承在地(di)壟墻上(shang)。板(ban)(ban)式樓(lou)梯(ti)的優點(dian)是(shi)梯(ti)段(duan)板(ban)(ban)下表面平(ping)整，支模簡單;其(qi)缺點(dian)是(shi)梯(ti)段(duan)板(ban)(ban)跨度較大時，斜板(ban)(ban)厚(hou)度較大，結構材料用(yong)(yong)量較多。因此板(ban)(ban)式樓(lou)梯(ti)適用(yong)(yong)于可(ke)變荷載較小、梯(ti)段(duan)板(ban)(ban)跨度一般(ban)不(bu)大于3m的情(qing)況。