按結構形式(shi)(shi)和受力特點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁(liang)式(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)和螺旋(xuan)式(shi)(shi)，前兩種屬(shu)于(yu)平面受力體系(xi)，后兩種則為空間受力體系(xi)。

板(ban)(ban)式(shi)樓(lou)(lou)(lou)梯(ti)是由梯(ti)段(duan)(duan)(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁組成。梯(ti)段(duan)(duan)(duan)板(ban)(ban)是一塊帶踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于(yu)上(shang)(shang)、下(xia)平(ping)臺梁上(shang)(shang)，底(di)層下(xia)端支承在地壟(long)墻上(shang)(shang)。板(ban)(ban)式(shi)樓(lou)(lou)(lou)梯(ti)的優點(dian)是梯(ti)段(duan)(duan)(duan)板(ban)(ban)下(xia)表面(mian)平(ping)整，支模簡單;其缺點(dian)是梯(ti)段(duan)(duan)(duan)板(ban)(ban)跨度較大(da)時，斜(xie)板(ban)(ban)厚度較大(da)，結構材料用量較多。因此板(ban)(ban)式(shi)樓(lou)(lou)(lou)梯(ti)適用于(yu)可(ke)變荷(he)載較小、梯(ti)段(duan)(duan)(duan)板(ban)(ban)跨度一般不大(da)于(yu)3m的情(qing)況(kuang)。