按結構(gou)形(xing)式(shi)和受(shou)力(li)特點樓梯形(xing)式(shi)可分為板式(shi)、梁(liang)式(shi)、懸挑(剪刀(dao))式(shi)和螺旋式(shi)，前(qian)兩(liang)種屬于平面受(shou)力(li)體系(xi)(xi)，后兩(liang)種則為空間受(shou)力(li)體系(xi)(xi)。

板(ban)(ban)式樓梯(ti)是由梯(ti)段(duan)板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁(liang)組成。梯(ti)段(duan)板(ban)(ban)是一塊帶(dai)踏(ta)步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)(zhi)承于上(shang)、下(xia)平臺(tai)梁(liang)上(shang)，底層下(xia)端支(zhi)(zhi)承在地(di)壟墻上(shang)。板(ban)(ban)式樓梯(ti)的優點是梯(ti)段(duan)板(ban)(ban)下(xia)表面平整，支(zhi)(zhi)模簡單;其(qi)缺點是梯(ti)段(duan)板(ban)(ban)跨度較(jiao)大(da)時(shi)，斜(xie)板(ban)(ban)厚度較(jiao)大(da)，結構材料(liao)用量較(jiao)多。因此板(ban)(ban)式樓梯(ti)適(shi)用于可變荷載較(jiao)小、梯(ti)段(duan)板(ban)(ban)跨度一般不大(da)于3m的情(qing)況(kuang)。