按結構形式(shi)和受力(li)特點樓梯形式(shi)可分為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋(xuan)式(shi)，前兩(liang)種屬于平面受力(li)體(ti)系(xi)，后兩(liang)種則為空間受力(li)體(ti)系(xi)。

板(ban)(ban)(ban)式(shi)樓梯(ti)是(shi)由梯(ti)段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和平臺梁組成。梯(ti)段板(ban)(ban)(ban)是(shi)一(yi)塊帶(dai)踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承(cheng)于(yu)上、下平臺梁上，底(di)層下端支承(cheng)在地壟墻上。板(ban)(ban)(ban)式(shi)樓梯(ti)的(de)優點是(shi)梯(ti)段板(ban)(ban)(ban)下表面平整(zheng)，支模簡單;其缺點是(shi)梯(ti)段板(ban)(ban)(ban)跨度較(jiao)(jiao)(jiao)大時(shi)，斜板(ban)(ban)(ban)厚度較(jiao)(jiao)(jiao)大，結構(gou)材料(liao)用(yong)量較(jiao)(jiao)(jiao)多。因此板(ban)(ban)(ban)式(shi)樓梯(ti)適(shi)用(yong)于(yu)可變(bian)荷載(zai)較(jiao)(jiao)(jiao)小(xiao)、梯(ti)段板(ban)(ban)(ban)跨度一(yi)般不大于(yu)3m的(de)情況。