用來(lai)滿足斜截面抗剪強(qiang)度，并聯結受(shou)力(li)主筋(jin)(jin)和受(shou)壓區混(hun)(hun)筋(jin)(jin)骨(gu)架的鋼筋(jin)(jin)。分單肢箍(gu)筋(jin)(jin)、開口矩形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)、封閉矩形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)、菱(ling)形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)、多邊形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)、井字(zi)形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)和圓形(xing)(xing)(xing)(xing)箍(gu)筋(jin)(jin)等。箍(gu)筋(jin)(jin)應(ying)根據計算確定(ding)，箍(gu)筋(jin)(jin)的最小(xiao)直(zhi)徑(jing)與梁(liang)高(gao)h有關，當h≦800mm時(shi)，不(bu)宜小(xiao)于(yu)6mm；當h>800mm時(shi)，不(bu)宜小(xiao)于(yu)8mm。梁(liang)支座處的箍(gu)筋(jin)(jin)一般(ban)從梁(liang)邊（或墻邊）50mm處開始設(she)置。支承在(zai)砌體(ti)結構上的鋼筋(jin)(jin)混(hun)(hun)凝土(tu)獨立梁(liang)，在(zai)縱向受(shou)力(li)鋼筋(jin)(jin)的錨固長度Las范圍內應(ying)設(she)置不(bu)少于(yu)兩道的箍(gu)筋(jin)(jin)，當梁(liang)與混(hun)(hun)凝土(tu)梁(liang)或柱整體(ti)連接時(shi)，支座內可不(bu)設(she)置箍(gu)筋(jin)(jin)。