按結構形式(shi)和受(shou)力特(te)點(dian)樓梯形式(shi)可分(fen)為板式(shi)、梁式(shi)、懸挑(剪刀(dao))式(shi)和螺(luo)旋式(shi)，前兩種屬(shu)于平面受(shou)力體系，后兩種則為空間受(shou)力體系。

板(ban)(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)(ti)是(shi)(shi)由(you)梯(ti)(ti)(ti)段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和平臺梁組成。梯(ti)(ti)(ti)段板(ban)(ban)(ban)是(shi)(shi)一塊帶(dai)踏(ta)步的斜(xie)(xie)板(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)支承于上(shang)、下(xia)平臺梁上(shang)，底層(ceng)下(xia)端支承在地壟(long)墻上(shang)。板(ban)(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)(ti)的優點(dian)是(shi)(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)下(xia)表面(mian)平整，支模(mo)簡單;其缺點(dian)是(shi)(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨度較(jiao)大時，斜(xie)(xie)板(ban)(ban)(ban)厚度較(jiao)大，結構材料用量較(jiao)多。因(yin)此板(ban)(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)(ti)適用于可(ke)變荷載較(jiao)小(xiao)、梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨度一般不大于3m的情(qing)況(kuang)。