按結構(gou)形式(shi)和受力(li)特點樓(lou)梯形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸(xuan)挑(tiao)(剪刀)式(shi)和螺旋式(shi)，前兩種屬(shu)于平(ping)面受力(li)體(ti)系(xi)，后兩種則為(wei)空間受力(li)體(ti)系(xi)。

板(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)是(shi)(shi)由梯(ti)(ti)(ti)段(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁(liang)組成。梯(ti)(ti)(ti)段(duan)板(ban)(ban)是(shi)(shi)一塊帶(dai)踏步(bu)的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)承于(yu)上、下平(ping)臺梁(liang)上，底(di)層下端支(zhi)承在(zai)地(di)壟墻上。板(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)的優(you)點是(shi)(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)下表面(mian)平(ping)整，支(zhi)模(mo)簡(jian)單;其缺(que)點是(shi)(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度較大時，斜(xie)板(ban)(ban)厚度較大，結構材料用量較多。因此板(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)適用于(yu)可變荷載較小、梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度一般不大于(yu)3m的情況。