按結構(gou)形(xing)式(shi)和受(shou)力特點樓梯形(xing)式(shi)可分(fen)為板式(shi)、梁式(shi)、懸(xuan)挑(tiao)(剪刀)式(shi)和螺旋式(shi)，前兩(liang)(liang)種屬(shu)于平(ping)面受(shou)力體(ti)系，后兩(liang)(liang)種則為空間受(shou)力體(ti)系。

板(ban)(ban)(ban)式樓(lou)梯(ti)是(shi)(shi)由(you)梯(ti)段(duan)(duan)板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和平臺(tai)梁組成(cheng)。梯(ti)段(duan)(duan)板(ban)(ban)(ban)是(shi)(shi)一塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于(yu)上、下平臺(tai)梁上，底層下端支(zhi)承在地壟墻上。板(ban)(ban)(ban)式樓(lou)梯(ti)的(de)優(you)點(dian)是(shi)(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)下表(biao)面平整，支(zhi)模(mo)簡(jian)單;其缺(que)點(dian)是(shi)(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度較(jiao)大(da)時，斜板(ban)(ban)(ban)厚(hou)度較(jiao)大(da)，結構材(cai)料用量較(jiao)多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)適(shi)用于(yu)可變(bian)荷(he)載較(jiao)小、梯(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度一般不大(da)于(yu)3m的(de)情況。