按結構形式(shi)(shi)和受力特點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(tiao)(剪(jian)刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩種屬于平面受力體系，后兩種則為空間受力體系。

板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)(ban)和平(ping)臺(tai)梁(liang)組成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶踏步的(de)斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支承于上(shang)、下(xia)平(ping)臺(tai)梁(liang)上(shang)，底(di)層下(xia)端(duan)支承在(zai)地壟墻上(shang)。板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)的(de)優點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)下(xia)表面平(ping)整，支模簡(jian)單;其缺點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度(du)較大時，斜(xie)板(ban)(ban)(ban)(ban)厚度(du)較大，結構材料用(yong)量較多。因(yin)此板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)適用(yong)于可(ke)變荷載(zai)較小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度(du)一(yi)般不(bu)大于3m的(de)情況。