按結(jie)構形(xing)式(shi)(shi)(shi)和(he)受(shou)力特點樓梯(ti)形(xing)式(shi)(shi)(shi)可(ke)分為板(ban)式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(剪刀)式(shi)(shi)(shi)和(he)螺(luo)旋式(shi)(shi)(shi)，前兩(liang)種屬于平面受(shou)力體系，后兩(liang)種則為空間受(shou)力體系。

板(ban)(ban)(ban)式樓梯(ti)是由梯(ti)段(duan)板(ban)(ban)(ban)、平(ping)(ping)臺(tai)板(ban)(ban)(ban)和平(ping)(ping)臺(tai)梁組成。梯(ti)段(duan)板(ban)(ban)(ban)是一塊(kuai)帶踏步的斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承(cheng)于(yu)上、下平(ping)(ping)臺(tai)梁上，底(di)層(ceng)下端支(zhi)承(cheng)在地壟(long)墻上。板(ban)(ban)(ban)式樓梯(ti)的優點是梯(ti)段(duan)板(ban)(ban)(ban)下表面平(ping)(ping)整，支(zhi)模簡(jian)單;其(qi)缺點是梯(ti)段(duan)板(ban)(ban)(ban)跨度較大時(shi)，斜板(ban)(ban)(ban)厚(hou)度較大，結構材料(liao)用(yong)量較多。因此板(ban)(ban)(ban)式樓梯(ti)適用(yong)于(yu)可變(bian)荷(he)載較小、梯(ti)段(duan)板(ban)(ban)(ban)跨度一般不大于(yu)3m的情況。