按結構形(xing)式(shi)和受(shou)力特(te)點樓梯形(xing)式(shi)可分為板式(shi)、梁式(shi)、懸挑(tiao)(剪刀(dao))式(shi)和螺旋式(shi)，前兩(liang)(liang)種(zhong)屬于平面受(shou)力體系，后兩(liang)(liang)種(zhong)則為空間(jian)受(shou)力體系。

板(ban)(ban)式樓(lou)梯(ti)是(shi)由(you)梯(ti)段(duan)(duan)板(ban)(ban)、平臺板(ban)(ban)和平臺梁組(zu)成。梯(ti)段(duan)(duan)板(ban)(ban)是(shi)一塊(kuai)帶踏步(bu)的(de)斜板(ban)(ban)，斜板(ban)(ban)支承于(yu)上、下平臺梁上，底層下端支承在地壟墻(qiang)上。板(ban)(ban)式樓(lou)梯(ti)的(de)優(you)點是(shi)梯(ti)段(duan)(duan)板(ban)(ban)下表面平整，支模簡單;其缺點是(shi)梯(ti)段(duan)(duan)板(ban)(ban)跨(kua)度較(jiao)(jiao)大時(shi)，斜板(ban)(ban)厚度較(jiao)(jiao)大，結構材料(liao)用量較(jiao)(jiao)多。因此板(ban)(ban)式樓(lou)梯(ti)適用于(yu)可(ke)變荷載(zai)較(jiao)(jiao)小(xiao)、梯(ti)段(duan)(duan)板(ban)(ban)跨(kua)度一般不(bu)大于(yu)3m的(de)情況。