按結構形(xing)式(shi)和(he)受力特(te)點樓梯形(xing)式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和(he)螺(luo)旋式(shi)，前兩種(zhong)屬于(yu)平面(mian)受力體系(xi)，后兩種(zhong)則為(wei)空間(jian)受力體系(xi)。

板(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和(he)平臺(tai)梁組成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)是(shi)一塊帶踏步(bu)的斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承(cheng)于(yu)(yu)上(shang)、下(xia)平臺(tai)梁上(shang)，底層下(xia)端支(zhi)承(cheng)在地壟墻上(shang)。板(ban)(ban)(ban)式樓梯(ti)(ti)的優點是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)下(xia)表面(mian)平整，支(zhi)模簡(jian)單;其缺(que)點是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)跨度較大時，斜板(ban)(ban)(ban)厚度較大，結構材料用量(liang)較多。因此(ci)板(ban)(ban)(ban)式樓梯(ti)(ti)適用于(yu)(yu)可變荷載較小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)跨度一般不大于(yu)(yu)3m的情況。