按結構(gou)形式和受力(li)特點樓梯形式可分為板式、梁式、懸挑(剪刀)式和螺旋式，前兩種屬于平(ping)面受力(li)體系，后(hou)兩種則為空間(jian)受力(li)體系。

板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和平臺(tai)梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)是(shi)一塊(kuai)帶踏步的(de)(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于(yu)上、下平臺(tai)梁上，底層(ceng)下端(duan)支(zhi)承在(zai)地壟墻上。板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)的(de)(de)優(you)點是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)下表面平整，支(zhi)模簡單;其缺(que)點是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)較大時(shi)，斜板(ban)(ban)(ban)厚度(du)較大，結構材料用(yong)量(liang)較多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)適用(yong)于(yu)可變荷載較小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)一般(ban)不大于(yu)3m的(de)(de)情況。