按結構(gou)形式(shi)和(he)受(shou)力特點樓梯形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩(liang)種(zhong)屬(shu)于平面受(shou)力體系(xi)，后(hou)兩(liang)種(zhong)則為(wei)空間受(shou)力體系(xi)。

板(ban)式(shi)樓(lou)梯(ti)(ti)(ti)是(shi)由梯(ti)(ti)(ti)段(duan)(duan)(duan)板(ban)、平(ping)臺板(ban)和平(ping)臺梁組成。梯(ti)(ti)(ti)段(duan)(duan)(duan)板(ban)是(shi)一塊(kuai)帶踏步的斜板(ban)，斜板(ban)支承于上(shang)(shang)、下平(ping)臺梁上(shang)(shang)，底層下端支承在地壟墻(qiang)上(shang)(shang)。板(ban)式(shi)樓(lou)梯(ti)(ti)(ti)的優點是(shi)梯(ti)(ti)(ti)段(duan)(duan)(duan)板(ban)下表面平(ping)整，支模簡單(dan);其缺點是(shi)梯(ti)(ti)(ti)段(duan)(duan)(duan)板(ban)跨度較大(da)時，斜板(ban)厚度較大(da)，結(jie)構材料用(yong)量較多。因(yin)此板(ban)式(shi)樓(lou)梯(ti)(ti)(ti)適用(yong)于可(ke)變荷(he)載較小、梯(ti)(ti)(ti)段(duan)(duan)(duan)板(ban)跨度一般不大(da)于3m的情況。