按結構形式(shi)和受力(li)特點樓梯形式(shi)可分(fen)為板式(shi)、梁式(shi)、懸(xuan)挑(剪(jian)刀)式(shi)和螺旋式(shi)，前兩種(zhong)屬于平面受力(li)體系(xi)，后兩種(zhong)則為空(kong)間受力(li)體系(xi)。

板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)和平臺梁(liang)組成。梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)是一(yi)塊帶踏步的斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支(zhi)承于上、下(xia)平臺梁(liang)上，底(di)層下(xia)端(duan)支(zhi)承在(zai)地壟(long)墻上。板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)的優點是梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)下(xia)表面平整，支(zhi)模簡單(dan);其缺點是梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨(kua)度較(jiao)大(da)(da)時，斜板(ban)(ban)(ban)(ban)厚(hou)度較(jiao)大(da)(da)，結構(gou)材料用量較(jiao)多。因此板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)適用于可變荷載(zai)較(jiao)小(xiao)、梯(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨(kua)度一(yi)般不(bu)大(da)(da)于3m的情況(kuang)。