按結構(gou)形式和受力(li)特點樓梯形式可分為板式、梁式、懸挑(剪刀(dao))式和螺旋(xuan)式，前(qian)兩(liang)種屬于平面受力(li)體(ti)系，后兩(liang)種則為空間受力(li)體(ti)系。

板(ban)(ban)(ban)(ban)(ban)式樓梯是(shi)由梯段板(ban)(ban)(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)(ban)(ban)和(he)平(ping)臺(tai)梁(liang)組成。梯段板(ban)(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶(dai)踏(ta)步的斜(xie)板(ban)(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)(ban)支承于上、下(xia)平(ping)臺(tai)梁(liang)上，底層下(xia)端支承在地壟墻上。板(ban)(ban)(ban)(ban)(ban)式樓梯的優點是(shi)梯段板(ban)(ban)(ban)(ban)(ban)下(xia)表面(mian)平(ping)整，支模簡單;其(qi)缺點是(shi)梯段板(ban)(ban)(ban)(ban)(ban)跨度(du)較(jiao)(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)(ban)(ban)厚(hou)度(du)較(jiao)(jiao)大(da)，結構材料用(yong)量較(jiao)(jiao)多。因此板(ban)(ban)(ban)(ban)(ban)式樓梯適用(yong)于可變荷載(zai)較(jiao)(jiao)小(xiao)、梯段板(ban)(ban)(ban)(ban)(ban)跨度(du)一(yi)般不大(da)于3m的情況。