按結構(gou)形(xing)式(shi)和受力特點樓梯形(xing)式(shi)可分為板(ban)式(shi)、梁式(shi)、懸挑(剪(jian)刀)式(shi)和螺旋式(shi)，前兩種屬于平面受力體(ti)系(xi)，后兩種則為空(kong)間受力體(ti)系(xi)。

板(ban)(ban)式(shi)樓梯(ti)(ti)(ti)(ti)是(shi)由梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)、平(ping)(ping)臺板(ban)(ban)和平(ping)(ping)臺梁組成。梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)是(shi)一塊帶(dai)踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于(yu)上、下(xia)平(ping)(ping)臺梁上，底層下(xia)端支承在地壟墻上。板(ban)(ban)式(shi)樓梯(ti)(ti)(ti)(ti)的優點是(shi)梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)下(xia)表面平(ping)(ping)整，支模(mo)簡單;其缺點是(shi)梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)跨度(du)較(jiao)(jiao)(jiao)大時(shi)，斜(xie)板(ban)(ban)厚(hou)度(du)較(jiao)(jiao)(jiao)大，結構(gou)材料用(yong)量較(jiao)(jiao)(jiao)多(duo)。因此板(ban)(ban)式(shi)樓梯(ti)(ti)(ti)(ti)適(shi)用(yong)于(yu)可變荷載較(jiao)(jiao)(jiao)小、梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)跨度(du)一般不大于(yu)3m的情況(kuang)。