按結構(gou)形式和受(shou)力特(te)點樓(lou)梯形式可分為板式、梁式、懸挑(剪刀)式和螺旋式，前兩種屬于平面(mian)受(shou)力體(ti)系(xi)，后兩種則為空間受(shou)力體(ti)系(xi)。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是(shi)(shi)由梯(ti)(ti)段板(ban)(ban)、平臺板(ban)(ban)和平臺梁(liang)組成。梯(ti)(ti)段板(ban)(ban)是(shi)(shi)一(yi)塊(kuai)帶踏(ta)步的(de)斜(xie)(xie)(xie)板(ban)(ban)，斜(xie)(xie)(xie)板(ban)(ban)支承(cheng)于(yu)上、下平臺梁(liang)上，底層(ceng)下端支承(cheng)在(zai)地壟墻上。板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的(de)優點(dian)是(shi)(shi)梯(ti)(ti)段板(ban)(ban)下表面(mian)平整，支模簡單(dan);其缺點(dian)是(shi)(shi)梯(ti)(ti)段板(ban)(ban)跨度(du)(du)(du)較(jiao)(jiao)大(da)時，斜(xie)(xie)(xie)板(ban)(ban)厚度(du)(du)(du)較(jiao)(jiao)大(da)，結構材料用(yong)量較(jiao)(jiao)多(duo)。因此板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適(shi)用(yong)于(yu)可變荷載較(jiao)(jiao)小、梯(ti)(ti)段板(ban)(ban)跨度(du)(du)(du)一(yi)般不(bu)大(da)于(yu)3m的(de)情況。