按結構(gou)形式(shi)和(he)受(shou)力特點樓梯(ti)形式(shi)可分為板式(shi)、梁式(shi)、懸挑(剪刀(dao))式(shi)和(he)螺旋式(shi)，前(qian)兩種(zhong)屬于平面受(shou)力體系，后(hou)兩種(zhong)則(ze)為空間(jian)受(shou)力體系。

板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和(he)平臺梁組成(cheng)。梯(ti)(ti)(ti)段板(ban)(ban)(ban)是一塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承(cheng)于上(shang)(shang)、下平臺梁上(shang)(shang)，底層下端支(zhi)承(cheng)在地壟墻(qiang)上(shang)(shang)。板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)的(de)優點是梯(ti)(ti)(ti)段板(ban)(ban)(ban)下表面(mian)平整(zheng)，支(zhi)模簡單;其(qi)缺點是梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)度較大時，斜板(ban)(ban)(ban)厚(hou)度較大，結構材料用(yong)(yong)量較多。因(yin)此板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)適用(yong)(yong)于可變荷載較小(xiao)、梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)度一般不(bu)大于3m的(de)情(qing)況。