按(an)結構形式(shi)(shi)和受(shou)力(li)特(te)點樓梯形式(shi)(shi)可分為(wei)(wei)板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前(qian)兩(liang)種屬于(yu)平面(mian)受(shou)力(li)體(ti)系，后兩(liang)種則為(wei)(wei)空間受(shou)力(li)體(ti)系。

板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)和平臺梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶踏(ta)步(bu)的(de)斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支(zhi)承(cheng)(cheng)于(yu)上(shang)、下(xia)(xia)平臺梁上(shang)，底層(ceng)下(xia)(xia)端支(zhi)承(cheng)(cheng)在地壟墻上(shang)。板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)的(de)優點(dian)是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)下(xia)(xia)表面平整，支(zhi)模簡單;其(qi)缺點(dian)是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨度較(jiao)(jiao)大(da)時(shi)，斜板(ban)(ban)(ban)(ban)厚度較(jiao)(jiao)大(da)，結構(gou)材料用量較(jiao)(jiao)多。因此(ci)板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)適用于(yu)可變(bian)荷載較(jiao)(jiao)小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨度一(yi)般不大(da)于(yu)3m的(de)情況。