按結構(gou)形(xing)(xing)式(shi)和受力特點樓梯形(xing)(xing)式(shi)可(ke)分為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋式(shi)，前(qian)兩種屬于(yu)平面受力體(ti)系，后(hou)兩種則為空間受力體(ti)系。

板(ban)(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)(ban)(ban)和(he)平臺(tai)梁組成(cheng)。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)是一塊帶踏步的斜(xie)板(ban)(ban)(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)(ban)(ban)支承(cheng)于(yu)(yu)上、下平臺(tai)梁上，底層下端(duan)支承(cheng)在地壟(long)墻(qiang)上。板(ban)(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)下表面(mian)平整(zheng)，支模簡單;其缺點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度(du)較大時，斜(xie)板(ban)(ban)(ban)(ban)(ban)(ban)厚度(du)較大，結構(gou)材料用量較多。因此板(ban)(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用于(yu)(yu)可變荷載較小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度(du)一般不大于(yu)(yu)3m的情(qing)況。