按結構(gou)形(xing)式(shi)(shi)和受(shou)力特點樓梯形(xing)式(shi)(shi)可分為(wei)板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩種屬(shu)于平面受(shou)力體(ti)系，后兩種則為(wei)空間受(shou)力體(ti)系。

板(ban)式(shi)(shi)(shi)樓梯是(shi)由梯段板(ban)、平臺板(ban)和平臺梁組成。梯段板(ban)是(shi)一塊帶踏步(bu)的斜(xie)板(ban)，斜(xie)板(ban)支(zhi)承于(yu)上、下平臺梁上，底層(ceng)下端(duan)支(zhi)承在地壟墻(qiang)上。板(ban)式(shi)(shi)(shi)樓梯的優點是(shi)梯段板(ban)下表面平整，支(zhi)模簡單;其(qi)缺點是(shi)梯段板(ban)跨度較(jiao)(jiao)大(da)時，斜(xie)板(ban)厚度較(jiao)(jiao)大(da)，結(jie)構材(cai)料用(yong)量較(jiao)(jiao)多。因此板(ban)式(shi)(shi)(shi)樓梯適用(yong)于(yu)可變(bian)荷(he)載較(jiao)(jiao)小(xiao)、梯段板(ban)跨度一般不大(da)于(yu)3m的情況。