按結構(gou)形(xing)式和(he)受力(li)(li)特點樓梯形(xing)式可(ke)分為板式、梁式、懸挑(剪刀)式和(he)螺旋(xuan)式，前兩種(zhong)屬于平面受力(li)(li)體(ti)系(xi)，后兩種(zhong)則為空間受力(li)(li)體(ti)系(xi)。

板(ban)(ban)(ban)式樓(lou)梯(ti)是(shi)(shi)由梯(ti)段板(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)和平(ping)臺(tai)梁組成。梯(ti)段板(ban)(ban)(ban)是(shi)(shi)一塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于上(shang)、下平(ping)臺(tai)梁上(shang)，底層下端支(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)式樓(lou)梯(ti)的(de)優點(dian)是(shi)(shi)梯(ti)段板(ban)(ban)(ban)下表面平(ping)整，支(zhi)模簡單;其缺點(dian)是(shi)(shi)梯(ti)段板(ban)(ban)(ban)跨(kua)(kua)度(du)較(jiao)大(da)時，斜板(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構材(cai)料(liao)用量較(jiao)多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)適用于可變(bian)荷載較(jiao)小、梯(ti)段板(ban)(ban)(ban)跨(kua)(kua)度(du)一般(ban)不(bu)大(da)于3m的(de)情(qing)況。