按(an)結構形(xing)(xing)式和(he)受(shou)力(li)特點樓(lou)梯(ti)形(xing)(xing)式可分為(wei)板式、梁(liang)式、懸挑(剪(jian)刀(dao))式和(he)螺旋式，前兩(liang)種屬于平(ping)面受(shou)力(li)體系，后兩(liang)種則為(wei)空間受(shou)力(li)體系。

板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)、平(ping)(ping)(ping)臺板(ban)(ban)(ban)(ban)和(he)平(ping)(ping)(ping)臺梁組(zu)成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)是一(yi)塊帶踏(ta)步的斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支(zhi)承于上、下平(ping)(ping)(ping)臺梁上，底(di)層下端支(zhi)承在地壟(long)墻上。板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)的優點是梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)下表面(mian)平(ping)(ping)(ping)整，支(zhi)模(mo)簡單(dan);其(qi)缺點是梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度較大(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度較大(da)，結構材(cai)料(liao)用量(liang)較多。因此板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)適用于可(ke)變(bian)荷(he)載較小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度一(yi)般不大(da)于3m的情(qing)況。