按(an)結構形式和(he)受力特點樓梯形式可分為板式、梁式、懸挑(剪(jian)刀(dao))式和(he)螺旋式，前兩(liang)種屬于平面受力體系(xi)，后(hou)兩(liang)種則為空間受力體系(xi)。

板(ban)(ban)(ban)(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)(ban)(ban)和平臺梁(liang)組(zu)成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)是(shi)一塊帶踏(ta)步的(de)(de)(de)斜板(ban)(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)(ban)支承于(yu)上、下平臺梁(liang)上，底(di)層(ceng)下端支承在地壟墻(qiang)上。板(ban)(ban)(ban)(ban)(ban)(ban)式樓梯(ti)(ti)的(de)(de)(de)優點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)下表面平整，支模簡單;其缺點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度較(jiao)(jiao)大時，斜板(ban)(ban)(ban)(ban)(ban)(ban)厚度較(jiao)(jiao)大，結構材(cai)料用量較(jiao)(jiao)多。因此板(ban)(ban)(ban)(ban)(ban)(ban)式樓梯(ti)(ti)適(shi)用于(yu)可變荷載(zai)較(jiao)(jiao)小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度一般(ban)不大于(yu)3m的(de)(de)(de)情(qing)況(kuang)。