按結構形式和受(shou)(shou)力特點樓梯形式可分(fen)為(wei)板式、梁(liang)式、懸挑(剪刀)式和螺(luo)旋式，前(qian)兩種屬于(yu)平面受(shou)(shou)力體(ti)系，后兩種則為(wei)空間受(shou)(shou)力體(ti)系。

板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)、平臺板(ban)(ban)和(he)平臺梁組成。梯(ti)(ti)段(duan)板(ban)(ban)是(shi)一(yi)塊(kuai)帶踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上(shang)、下平臺梁上(shang)，底層(ceng)下端支承在地壟(long)墻上(shang)。板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)的優點是(shi)梯(ti)(ti)段(duan)板(ban)(ban)下表面(mian)平整，支模簡單;其缺點是(shi)梯(ti)(ti)段(duan)板(ban)(ban)跨度較(jiao)大時，斜(xie)板(ban)(ban)厚度較(jiao)大，結構(gou)材料用(yong)量較(jiao)多。因此(ci)板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)適(shi)用(yong)于可變荷載較(jiao)小、梯(ti)(ti)段(duan)板(ban)(ban)跨度一(yi)般(ban)不(bu)大于3m的情況。