按結(jie)構形(xing)式和受(shou)力(li)特點樓梯形(xing)式可分為板(ban)式、梁式、懸(xuan)挑(tiao)(剪刀)式和螺旋式，前(qian)兩(liang)種(zhong)屬于平面受(shou)力(li)體(ti)系(xi)，后(hou)兩(liang)種(zhong)則為空間受(shou)力(li)體(ti)系(xi)。

板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段板(ban)(ban)(ban)、平(ping)(ping)臺(tai)板(ban)(ban)(ban)和平(ping)(ping)臺(tai)梁組(zu)成。梯(ti)(ti)段板(ban)(ban)(ban)是(shi)一(yi)塊帶踏步的斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支承(cheng)于上、下(xia)平(ping)(ping)臺(tai)梁上，底層下(xia)端支承(cheng)在地壟墻上。板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)的優點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)下(xia)表面平(ping)(ping)整(zheng)，支模簡單;其缺點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)跨(kua)度較(jiao)(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)厚度較(jiao)(jiao)大(da)，結構材料用量(liang)較(jiao)(jiao)多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)適用于可(ke)變荷載(zai)較(jiao)(jiao)小、梯(ti)(ti)段板(ban)(ban)(ban)跨(kua)度一(yi)般不大(da)于3m的情況。