按結構形(xing)式(shi)和(he)受(shou)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(liang)種(zhong)屬于平面受(shou)力體(ti)系，后兩(liang)種(zhong)則為(wei)空間受(shou)力體(ti)系。

板(ban)(ban)式(shi)(shi)樓梯是(shi)(shi)由梯段板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁組(zu)成。梯段板(ban)(ban)是(shi)(shi)一塊帶踏步(bu)的斜板(ban)(ban)，斜板(ban)(ban)支承于上(shang)、下(xia)平臺(tai)梁上(shang)，底層(ceng)下(xia)端支承在地(di)壟墻(qiang)上(shang)。板(ban)(ban)式(shi)(shi)樓梯的優點是(shi)(shi)梯段板(ban)(ban)下(xia)表面平整，支模(mo)簡(jian)單(dan);其(qi)缺點是(shi)(shi)梯段板(ban)(ban)跨度較大(da)時(shi)，斜板(ban)(ban)厚度較大(da)，結構材料(liao)用(yong)量(liang)較多。因此(ci)板(ban)(ban)式(shi)(shi)樓梯適用(yong)于可變荷載較小、梯段板(ban)(ban)跨度一般不(bu)大(da)于3m的情況。