按結構形式(shi)和受(shou)力(li)特點樓梯形式(shi)可分為板式(shi)、梁式(shi)、懸挑(剪刀(dao))式(shi)和螺旋式(shi)，前兩種屬(shu)于平面受(shou)力(li)體系，后兩種則為空(kong)間受(shou)力(li)體系。

板(ban)(ban)式(shi)樓(lou)梯(ti)是由梯(ti)段(duan)板(ban)(ban)、平臺板(ban)(ban)和(he)平臺梁組成。梯(ti)段(duan)板(ban)(ban)是一(yi)塊帶踏步的斜(xie)(xie)板(ban)(ban)，斜(xie)(xie)板(ban)(ban)支(zhi)(zhi)承(cheng)于(yu)(yu)上、下平臺梁上，底層下端支(zhi)(zhi)承(cheng)在地壟(long)墻上。板(ban)(ban)式(shi)樓(lou)梯(ti)的優(you)點(dian)是梯(ti)段(duan)板(ban)(ban)下表面平整(zheng)，支(zhi)(zhi)模簡單;其缺(que)點(dian)是梯(ti)段(duan)板(ban)(ban)跨度(du)較(jiao)大(da)(da)時，斜(xie)(xie)板(ban)(ban)厚度(du)較(jiao)大(da)(da)，結構(gou)材料用量較(jiao)多。因(yin)此板(ban)(ban)式(shi)樓(lou)梯(ti)適(shi)用于(yu)(yu)可變荷載較(jiao)小、梯(ti)段(duan)板(ban)(ban)跨度(du)一(yi)般不大(da)(da)于(yu)(yu)3m的情況。