按(an)結構(gou)形式(shi)(shi)和受力(li)特點樓(lou)梯形式(shi)(shi)可分為板式(shi)(shi)、梁(liang)式(shi)(shi)、懸挑(tiao)(剪(jian)刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)種屬于平(ping)面受力(li)體系，后兩(liang)種則(ze)為空(kong)間受力(li)體系。

板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)(shi)(shi)(shi)由梯(ti)(ti)段板(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)和(he)平(ping)臺(tai)梁組成。梯(ti)(ti)段板(ban)(ban)(ban)是(shi)(shi)(shi)(shi)一(yi)塊帶踏步(bu)的(de)(de)斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支(zhi)承于上、下平(ping)臺(tai)梁上，底層(ceng)下端(duan)支(zhi)承在地壟墻上。板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)的(de)(de)優(you)點是(shi)(shi)(shi)(shi)梯(ti)(ti)段板(ban)(ban)(ban)下表(biao)面平(ping)整，支(zhi)模簡單;其缺點是(shi)(shi)(shi)(shi)梯(ti)(ti)段板(ban)(ban)(ban)跨度(du)較大時，斜(xie)板(ban)(ban)(ban)厚度(du)較大，結構材料用(yong)量較多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)適(shi)用(yong)于可變荷(he)載較小、梯(ti)(ti)段板(ban)(ban)(ban)跨度(du)一(yi)般(ban)不大于3m的(de)(de)情況。