按結(jie)構(gou)形(xing)式和(he)(he)受力特點(dian)樓梯形(xing)式可分為(wei)板(ban)式、梁式、懸(xuan)挑(剪(jian)刀)式和(he)(he)螺旋式，前兩種屬于平(ping)面受力體(ti)系，后兩種則為(wei)空間受力體(ti)系。

板(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)(shi)由(you)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和(he)平臺(tai)梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)是(shi)(shi)一塊帶(dai)踏步的(de)(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承(cheng)于上(shang)、下(xia)平臺(tai)梁上(shang)，底層下(xia)端支承(cheng)在地壟(long)墻上(shang)。板(ban)(ban)(ban)式樓梯(ti)(ti)的(de)(de)優點(dian)是(shi)(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)下(xia)表面平整，支模簡(jian)單;其缺(que)點(dian)是(shi)(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)(du)較(jiao)(jiao)大時，斜板(ban)(ban)(ban)厚度(du)(du)較(jiao)(jiao)大，結構材料用量較(jiao)(jiao)多(duo)。因此板(ban)(ban)(ban)式樓梯(ti)(ti)適用于可變荷載較(jiao)(jiao)小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)(du)一般不大于3m的(de)(de)情況。