按結構形式(shi)和(he)受(shou)力特點(dian)樓梯形式(shi)可分為板式(shi)、梁式(shi)、懸(xuan)挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩種屬于平面(mian)受(shou)力體系，后兩種則為空間受(shou)力體系。

板(ban)(ban)(ban)(ban)式(shi)樓梯(ti)是(shi)由梯(ti)段板(ban)(ban)(ban)(ban)、平(ping)(ping)臺板(ban)(ban)(ban)(ban)和平(ping)(ping)臺梁組成。梯(ti)段板(ban)(ban)(ban)(ban)是(shi)一塊帶踏步的(de)斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支承于上(shang)、下平(ping)(ping)臺梁上(shang)，底層(ceng)下端支承在地壟墻上(shang)。板(ban)(ban)(ban)(ban)式(shi)樓梯(ti)的(de)優點是(shi)梯(ti)段板(ban)(ban)(ban)(ban)下表面平(ping)(ping)整(zheng)，支模(mo)簡單;其(qi)缺點是(shi)梯(ti)段板(ban)(ban)(ban)(ban)跨(kua)度(du)較(jiao)大(da)時，斜板(ban)(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構材料用量較(jiao)多。因此板(ban)(ban)(ban)(ban)式(shi)樓梯(ti)適用于可變荷載較(jiao)小、梯(ti)段板(ban)(ban)(ban)(ban)跨(kua)度(du)一般不(bu)大(da)于3m的(de)情況。