按結構形式和受力特點樓梯形式可(ke)分為(wei)板式、梁(liang)式、懸(xuan)挑(tiao)(剪刀)式和螺(luo)旋式，前兩種(zhong)屬(shu)于平(ping)面受力體系，后(hou)兩種(zhong)則(ze)為(wei)空間受力體系。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁組成。梯(ti)(ti)段(duan)板(ban)(ban)是一(yi)塊帶踏步(bu)的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于(yu)上(shang)、下(xia)平臺(tai)梁上(shang)，底層下(xia)端支承在地(di)壟墻上(shang)。板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)下(xia)表面平整(zheng)，支模簡單;其(qi)缺點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)跨(kua)度較(jiao)大時(shi)，斜(xie)板(ban)(ban)厚度較(jiao)大，結(jie)構(gou)材料用量(liang)較(jiao)多(duo)。因(yin)此板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用于(yu)可(ke)變荷載(zai)較(jiao)小、梯(ti)(ti)段(duan)板(ban)(ban)跨(kua)度一(yi)般(ban)不大于(yu)3m的情況。