按(an)結(jie)構形式(shi)和(he)受(shou)力(li)特點樓(lou)梯形式(shi)可分為板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩(liang)種屬于平(ping)面受(shou)力(li)體(ti)系(xi)(xi)，后兩(liang)種則為空(kong)間(jian)受(shou)力(li)體(ti)系(xi)(xi)。

板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯是由(you)梯段(duan)(duan)板(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)和平臺梁組成(cheng)。梯段(duan)(duan)板(ban)(ban)(ban)(ban)是一塊帶(dai)踏步(bu)的斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支(zhi)(zhi)承于上、下(xia)平臺梁上，底(di)層下(xia)端支(zhi)(zhi)承在(zai)地壟墻上。板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯的優點(dian)(dian)是梯段(duan)(duan)板(ban)(ban)(ban)(ban)下(xia)表面(mian)平整(zheng)，支(zhi)(zhi)模簡單;其缺(que)點(dian)(dian)是梯段(duan)(duan)板(ban)(ban)(ban)(ban)跨度較(jiao)大時(shi)，斜(xie)板(ban)(ban)(ban)(ban)厚(hou)度較(jiao)大，結(jie)構材(cai)料用(yong)量較(jiao)多。因此板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯適用(yong)于可變荷載較(jiao)小、梯段(duan)(duan)板(ban)(ban)(ban)(ban)跨度一般不大于3m的情況。