按結構形式(shi)(shi)(shi)和受(shou)力特點樓梯形式(shi)(shi)(shi)可(ke)分(fen)為(wei)板(ban)式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(剪刀)式(shi)(shi)(shi)和螺旋(xuan)式(shi)(shi)(shi)，前(qian)兩(liang)種屬于平面(mian)受(shou)力體(ti)(ti)系，后兩(liang)種則為(wei)空間受(shou)力體(ti)(ti)系。

板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯是由梯段板(ban)(ban)(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)(ban)(ban)和平(ping)臺(tai)(tai)梁(liang)組成。梯段板(ban)(ban)(ban)(ban)(ban)是一塊帶踏步的斜(xie)板(ban)(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)(ban)支(zhi)承(cheng)于上、下(xia)平(ping)臺(tai)(tai)梁(liang)上，底層下(xia)端支(zhi)承(cheng)在地壟墻上。板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯的優(you)點是梯段板(ban)(ban)(ban)(ban)(ban)下(xia)表面平(ping)整，支(zhi)模(mo)簡單;其缺點是梯段板(ban)(ban)(ban)(ban)(ban)跨(kua)(kua)度(du)較大時，斜(xie)板(ban)(ban)(ban)(ban)(ban)厚度(du)較大，結構材料用量較多(duo)。因此板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯適用于可(ke)變荷載(zai)較小、梯段板(ban)(ban)(ban)(ban)(ban)跨(kua)(kua)度(du)一般不大于3m的情況(kuang)。