按結構形式(shi)和受(shou)力特(te)點樓梯形式(shi)可分為板式(shi)、梁式(shi)、懸(xuan)挑(剪刀)式(shi)和螺旋式(shi)，前兩種屬于平面受(shou)力體(ti)系，后兩種則為空間受(shou)力體(ti)系。

板(ban)(ban)式(shi)樓梯(ti)(ti)是(shi)由梯(ti)(ti)段板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁(liang)(liang)組成。梯(ti)(ti)段板(ban)(ban)是(shi)一(yi)塊(kuai)帶踏步(bu)的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)(zhi)承于(yu)(yu)上(shang)(shang)(shang)、下(xia)平(ping)臺梁(liang)(liang)上(shang)(shang)(shang)，底層下(xia)端支(zhi)(zhi)承在地壟(long)墻上(shang)(shang)(shang)。板(ban)(ban)式(shi)樓梯(ti)(ti)的優點是(shi)梯(ti)(ti)段板(ban)(ban)下(xia)表面平(ping)整，支(zhi)(zhi)模簡單;其(qi)缺點是(shi)梯(ti)(ti)段板(ban)(ban)跨度較大時，斜(xie)板(ban)(ban)厚度較大，結(jie)構材料用(yong)量較多。因此板(ban)(ban)式(shi)樓梯(ti)(ti)適(shi)用(yong)于(yu)(yu)可變荷載較小、梯(ti)(ti)段板(ban)(ban)跨度一(yi)般不(bu)大于(yu)(yu)3m的情況。