题目9单选题
钢筋混凝土矩形截面大偏压构件截面设计当<img src="https://tihai-oss-cloud.itihey.com/img/d7c565afd2888720fe02f529208a87f1.png"> 时,受拉钢筋的计算截面面积As 的求法是A. 对受压钢筋合力点取矩求得,即按<img src="https://tihai-oss-cloud.itihey.com/img/8c51018803cf6b6a54d0c06197042148.png">计算B. <img src="https://tihai-oss-cloud.itihey.com/img/df223bfde9cab0f8461b4a38b2d9719a.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/1a7fe8fbdfe5038fa193751c4655e3cc.png">D. 按最小配筋率及构造要求确定