按結(jie)構形式(shi)(shi)(shi)和受力(li)特點樓(lou)梯形式(shi)(shi)(shi)可分為板式(shi)(shi)(shi)、梁(liang)式(shi)(shi)(shi)、懸挑(tiao)(剪刀)式(shi)(shi)(shi)和螺旋式(shi)(shi)(shi)，前兩種屬(shu)于平(ping)面(mian)受力(li)體系(xi)，后兩種則(ze)為空間受力(li)體系(xi)。

板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)是(shi)由梯(ti)段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和平臺梁(liang)組成。梯(ti)段板(ban)(ban)(ban)是(shi)一塊(kuai)帶踏步的斜(xie)(xie)板(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)支承于(yu)上、下平臺梁(liang)上，底層下端(duan)支承在地(di)壟墻(qiang)上。板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)的優點是(shi)梯(ti)段板(ban)(ban)(ban)下表面平整，支模簡單(dan);其缺點是(shi)梯(ti)段板(ban)(ban)(ban)跨度(du)較(jiao)大(da)時(shi)，斜(xie)(xie)板(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構材料(liao)用量較(jiao)多。因此(ci)板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)適(shi)用于(yu)可變荷(he)載(zai)較(jiao)小、梯(ti)段板(ban)(ban)(ban)跨度(du)一般不大(da)于(yu)3m的情(qing)況。