按結(jie)構形式(shi)(shi)和受力特(te)點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩種屬(shu)于平(ping)面受力體(ti)系(xi)，后(hou)兩種則為空間(jian)受力體(ti)系(xi)。

板(ban)(ban)式(shi)樓梯(ti)是由(you)梯(ti)段(duan)板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁(liang)組成(cheng)。梯(ti)段(duan)板(ban)(ban)是一(yi)塊帶踏(ta)步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)承(cheng)于(yu)上(shang)(shang)、下(xia)(xia)(xia)平臺(tai)梁(liang)上(shang)(shang)，底層下(xia)(xia)(xia)端(duan)支(zhi)承(cheng)在地壟墻(qiang)上(shang)(shang)。板(ban)(ban)式(shi)樓梯(ti)的優點是梯(ti)段(duan)板(ban)(ban)下(xia)(xia)(xia)表面平整，支(zhi)模簡單;其缺點是梯(ti)段(duan)板(ban)(ban)跨(kua)度較(jiao)大時，斜(xie)板(ban)(ban)厚度較(jiao)大，結構(gou)材(cai)料用(yong)量較(jiao)多(duo)。因此板(ban)(ban)式(shi)樓梯(ti)適(shi)用(yong)于(yu)可變荷載較(jiao)小、梯(ti)段(duan)板(ban)(ban)跨(kua)度一(yi)般不大于(yu)3m的情(qing)況。