按結構(gou)形式和(he)受力(li)特點樓梯形式可分為(wei)板式、梁式、懸挑(剪(jian)刀)式和(he)螺旋式，前(qian)兩種屬于平面受力(li)體(ti)系，后兩種則為(wei)空間(jian)受力(li)體(ti)系。

板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)是(shi)(shi)(shi)(shi)由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)(ban)(ban)和平(ping)臺(tai)(tai)梁(liang)組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)是(shi)(shi)(shi)(shi)一(yi)塊帶踏步的斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支承于(yu)(yu)上、下(xia)平(ping)臺(tai)(tai)梁(liang)上，底層(ceng)下(xia)端支承在地壟(long)墻上。板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)的優點是(shi)(shi)(shi)(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)下(xia)表面(mian)平(ping)整，支模簡單;其缺點是(shi)(shi)(shi)(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)跨(kua)(kua)度(du)(du)較大(da)(da)時，斜板(ban)(ban)(ban)(ban)(ban)厚(hou)度(du)(du)較大(da)(da)，結構材料用量(liang)較多。因此(ci)板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)適用于(yu)(yu)可變(bian)荷載較小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)跨(kua)(kua)度(du)(du)一(yi)般不大(da)(da)于(yu)(yu)3m的情況。