按(an)結構形式和(he)受力特(te)點樓梯形式可分為板式、梁(liang)式、懸挑(剪刀)式和(he)螺旋式，前(qian)兩(liang)種屬于平(ping)面(mian)受力體系(xi)，后兩(liang)種則(ze)為空間受力體系(xi)。

板(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)(lou)梯(ti)(ti)是由梯(ti)(ti)段板(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)和平臺(tai)梁(liang)組成。梯(ti)(ti)段板(ban)(ban)(ban)(ban)是一塊(kuai)帶踏步的斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支(zhi)承于上(shang)、下平臺(tai)梁(liang)上(shang)，底層下端(duan)支(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)(lou)梯(ti)(ti)的優點(dian)是梯(ti)(ti)段板(ban)(ban)(ban)(ban)下表面平整，支(zhi)模簡(jian)單;其缺點(dian)是梯(ti)(ti)段板(ban)(ban)(ban)(ban)跨度較(jiao)大(da)時，斜板(ban)(ban)(ban)(ban)厚(hou)度較(jiao)大(da)，結構材料(liao)用(yong)量較(jiao)多。因(yin)此板(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)(lou)梯(ti)(ti)適用(yong)于可變(bian)荷載較(jiao)小(xiao)、梯(ti)(ti)段板(ban)(ban)(ban)(ban)跨度一般(ban)不(bu)大(da)于3m的情況。