按結(jie)構形式(shi)和受(shou)力特點樓梯形式(shi)可分(fen)為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋(xuan)式(shi)，前兩種屬于平面受(shou)力體系，后兩種則為空間(jian)受(shou)力體系。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是由梯(ti)(ti)段板(ban)(ban)、平(ping)臺(tai)板(ban)(ban)和平(ping)臺(tai)梁組成。梯(ti)(ti)段板(ban)(ban)是一塊(kuai)帶(dai)踏步的斜板(ban)(ban)，斜板(ban)(ban)支(zhi)承(cheng)于(yu)上(shang)、下(xia)平(ping)臺(tai)梁上(shang)，底層(ceng)下(xia)端支(zhi)承(cheng)在地(di)壟墻上(shang)。板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優(you)點(dian)是梯(ti)(ti)段板(ban)(ban)下(xia)表面平(ping)整，支(zhi)模簡單;其缺點(dian)是梯(ti)(ti)段板(ban)(ban)跨度較大時，斜板(ban)(ban)厚(hou)度較大，結構材料用量較多。因(yin)此板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適(shi)用于(yu)可變荷(he)載較小、梯(ti)(ti)段板(ban)(ban)跨度一般不大于(yu)3m的情況。