主体结构试题-附答案

④穿出破坏; ⑤剪撬破坏; ⑥劈裂破坏; ⑦胶筋界面破坏; ⑧胶混界面破坏;

18、什么是混凝土检测的微(半)破损法?(混凝土结构件结构性能)

微(半)破损法是以不影响结构或构件的承载能力为前提,在结构或构件上直接进行局部破坏性试验,或钻取芯样进行破坏性试验,并推算出强度标准值的推定值或特征强度的检测方法。 19、回弹仪具有哪些情况时应送检定单位检定?(回弹法)

(1)新回弹仪启用前;

(2)超过检定有效期限(有效期为半年); (3)累计弹击次数超过6000次;

(4)经常规保养后钢砧率定值不合格; (5)遭受严重撞击或其他损害。 20、预制构件结构性能试验条件应满足哪些要求?(构件结构性能)

(1)构件应在0℃以上的温度中进行试验;

(2)蒸汽养护后的构件应在冷却至常温后进行试验;

(3)构件在试验前应测量其实际尺寸,并检查构件表面,所有的缺陷和裂缝应在构件上标出。 六、计算

1、某现浇楼面板,混凝土设计强度等级为C30,采用泵送混凝土浇筑,现场检测时选取了该楼面板10个测区,弹击楼板底面。回弹仪读数和碳化深度检测值如下表,试计算该构件的现龄期混凝土强度推定值。(查表请查附表)(混凝土构件结构性能)

构件名称及编号: ……轴楼面板 测试日期: 年 月 日 构件 测区 1 2 3 4 5 6 1 2 3 4 5 6 7 回弹值 8 9 10 11 12 13 40 40 41 44 41 40 14 15 16 碳化深度(mm) 44 42 40 43 42 42 44 46 38 41 43 41 39 40 41 39 38 46 42 44 40 46 44 42 42 40 44 42 40 44 38 40 46 39 38 37 42 40 38 36 38 40 40 42 44 40 42 40 38 46 45 39 42 40 40 40 36 37 44 43 41 38 42 44 40 43 44 38 40 42 44 42 42 43 38 1.0,0.5,1.0 43 43 45 45 36 37 42 40 44 37 44 42 44 42 42 0.5,0.5,0.0 7 8 9 10

42 41 41 46 42 42 40 40 42 40 40 42 40 41 37 40 40 38 42 40 40 42 44 42 44 45 38 44 46 41 40 40 42 37 41 43 42 38 36 40 40 42 42 44 39 46 40 42 40 44 41 44 42 40 42 44 43 40 47 40 39 0.5,0.0,0.0 38 31 40 附表1: 碳化深度值(mm) 0.0;0.5;1.0 1.5;2.0 抗压强度值(MPa) fccu(MPa) K(MPa) ≤40.0 +4.5 ≤30.0 +3.0 45.0 +3.0 35.0 +1.5 50.0 +1.5 55.0~60.0 0.0 40.0~60.0 0.0 fccu(MPa) K(MPa) 附表2:

平均 回弹 值Rm 20.0 20.2 20.4 20.6 20.8 21.0 21.2 21.4 21.6 21.8 0 10.3 10.5 10.7 11.0 11.2 11.4 11.6 11.8 12.0 12.3 0.5 10.1 10.3 10.5 10.8 11.0 11.2 11.4 11.6 11.8 12.1 1.0 — 10.0 10.2 10.4 10.6 10.8 11.0 11.2 11.4 11.7 1.5 — — — 10.1 10.3 10.5 10.7 10.9 11.0 11.3 2.0 — — — — — 10.0 10.2 10.4 10.6 10.8 测区混凝土强度换算表fccu,i(MPa) 平均碳化深度值dm(mm) 2.5 — — — — — — — 10.0 10.2 10.5 3.0 — — — — — — — — — 10.1 3.5 — — — — — — — — — — 4.0 — — — — — — — — — — 4.5 — — — — — — — — — — 5.0 — — — — — — — — — — 5.5 — — — — — — — — — — ≥6.0 — — — — — — — — — — 22.0 22.2 22.4 22.6 22.8 23.0 23.2 23.4 23.6 23.8 24.0 24.2 24.4 24.6 24.8 25.0 25.2 25.4 25.6 25.8 26.0 26.2 26.4 26.6 26.8 27.0 27.2 27.4 27.6 27.8 28.0 28.2 28.4 28.6 12.5 12.7 13.0 13.2 13.4 13.7 13.9 14.1 14.4 14.6 14.9 15.1 15.4 15.6 15.9 16.2 16.4 16.7 16.9 17.2 17.5 17.8 18.0 18.3 18.6 18.9 19.1 19.4 19.7 20.0 20.3 20.6 20.9 21.2 12.2 12.4 12.7 12.9 13.1 13.4 13.6 13.8 14.1 14.3 14.6 14.8 15.1 15.3 15.6 15.9 16.1 16.4 16.6 16.9 17.2 17.4 17.6 17.9 18.2 18.5 18.7 19.0 19.3 19.6 19.7 20.0 20.3 20.6 11.9 12.1 12.4 12.5 12.7 13.0 13.4 13.4 13.7 13.9 14.2 14.3 14.6 14.8 15.1 15.4 15.6 15.9 16.1 16.3 16.6 16.9 17.1 17.4 17.7 18.0 18.1 18.4 18.7 19.0 19.2 19.5 19.7 20.0 11.5 11.7 12.0 12.1 12.3 12.6 12.8 13.0 13.2 13.4 13.7 13.9 14.2 14.4 14.6 14.9 15.1 15.4 15.7 15.8 16.1 16.4 16.6 16.8 17.1 17.4 17.6 17.8 18.0 18.2 18.4 18.6 18.8 19.1 11.0 11.2 11.4 11.6 11.8 12.1 12.2 12.4 12.7 12.8 13.1 13.3 13.6 13.7 14.0 14.3 14.4 14.7 14.9 15.1 15.4 15.7 15.8 16.1 16.4 16.6 16.8 17.0 17.2 17.4 17.6 17.8 18.0 18.2 10.6 10.8 11.0 11.2 11.4 11.6 11.8 12.0 12.2 12.4 12.7 12.8 13.1 13.3 13.5 13.8 13.9 14.2 14.4 14.6 14.9 15.1 15.3 15.6 15.8 16.1 16.2 16.4 16.6 16.8 17.0 17.2 17.4 17.6 10.2 10.4 10.7 10.8 11.0 11.2 11.4 11.6 11.8 12.0 12.2 12.4 12.6 12.8 13.0 13.3 13.4 13.7 13.9 14.1 14.4 14.6 14.8 15.0 15.3 15.5 15.7 15.9 16.1 16.3 16.5 16.7 16.9 17.1 — 10.0 10.3 10.4 10.6 10.8 11.0 11.2 11.4 11.5 11.8 11.9 12.2 12.3 12.6 12.8 13.0 13.2 13.4 13.6 13.8 14.0 14.2 14.4 14.6 14.8 15.0 15.2 15.4 15.6 15.8 16.0 16.2 16.4 — — 10.0 10.2 10.3 10.5 10.7 10.9 11.1 11.2 11.5 11.6 11.9 12.0 12.2 12.5 12.6 12.9 13.0 13.2 13.5 13.7 13.9 14.1 14.3 14.6 14.7 14.9 15.1 15.3 15.4 15.6 15.8 16.0 — — — — — 10.1 10.3 10.4 10.7 10.8 11.0 11.2 11.4 11.5 11.8 12.0 12.1 12.4 12.5 12.7 13.0 13.2 13.3 13.5 13.8 14.0 14.1 14.3 14.5 14.7 14.8 15.0 15.2 15.4 — — — — — — 10.0 10.2 10.4 10.5 10.7 10.9 11.1 11.2 11.4 11.7 11.8 12.0 12.2 12.4 12.6 12.8 13.0 13.2 13.4 13.6 13.8 14.0 14.1 14.2 14.4 14.6 14.8 15.0 — — — — — — — — 10.1 10.2 10.4 10.6 10.8 10.9 11.1 11.3 11.5 11.7 11.8 12.0 12.2 12.4 12.6 12.8 12.9 13.1 13.3 13.4 13.6 13.7 13.9 14.0 14.2 14.3 — — — — — — — — — — 10.1 10.3 10.4 10.6 10.7 10.9 11.0 11.2 11.3 11.5 11.6 11.8 12.0 12.1 12.3 12.4 12.6 12.7 12.9 13.0 13.2 13.3 13.5 13.6 平均 回弹 值Rm 28.8 29.0 29.2 29.4 29.6 29.8 30.0 30.2 30.4 30.6 30.8 0 21.5 21.8 22.1 22.4 22.7 23.0 23.3 23.6 23.9 24.3 24.6 0.5 20.9 21.1 21.4 21.7 22.0 22.3 22.6 22.9 23.2 23.6 23.9 1.0 20.2 20.5 20.8 21.1 21.3 21.6 21.9 22.2 22.5 22.8 23.1 1.5 19.4 19.6 19.9 20.2 20.4 20.7 21.0 21.2 21.5 21.9 22.1 2.0 18.5 18.7 19.0 19.3 19.5 19.8 20.0 20.3 20.6 20.9 21.2 测区混凝土强度换算表fccu,i(MPa) 平均碳化深度值dm(mm) 2.5 17.8 18.1 18.3 18.6 18.8 19.1 19.3 19.6 19.8 20.2 20.4 3.0 17.3 17.5 17.7 17.9 18.2 18.4 18.6 18.9 19.1 19.4 19.7 3.5 16.6 16.8 17.0 17.2 217.5 17.7 17.9 18.2 18.4 18.7 18.9 4.0 16.2 16.4 16.6 16.8 17.0 17.2 17.4 17.6 17.8 18.0 18.2 4.5 15.6 15.8 16.0 16.2 16.4 16.6 16.8 17.0 17.2 17.5 17.7 5.0 15.2 15.4 15.6 15.8 16.0 16.2 16.4 16.6 16.8 17.0 17.2 5.5 14.5 14.6 14.8 15.0 15.1 15.3 15.4 15.6 15.8 16.0 16.2 ≥6.0 13.8 13.9 14.1 14.2 14.4 14.5 14.7 14.9 15.1 15.2 15.4 31.0 31.2 31.4 31.6 31.8 32.0 32.2 32.4 32.6 32.8 33.0 33.2 33.4 33.6 33.8 34.0 34.2 34.4 34.6 34.8 35.0 35.2 35.4 35.6 35.8 36.0 36.2 36.4 36.8 37.0 37.2 37.4 37.6 37.8 38.0 24.9 25.2 25.6 25.9 26.2 26.5 26.9 27.2 27.6 27.9 28.2 28.6 28.9 29.3 29.6 30.0 30.3 30.7 31.1 31.4 31.4 32.1 32.5 32.9 33.3 33.6 34.0 34.4 35.2 35.5 35.9 36.3 36.7 37.1 37.5 24.2 24.4 24.8 25.1 25.4 25.7 26.1 26.4 26.8 27.1 27.4 27.7 28.0 28.4 28.7 29.1 29.4 29.8 30.2 30.5 30.5 31.1 31.5 31.9 32.3 32.6 33.0 33.4 34.1 34.4 34.8 35.2 35.6 36.0 36.4 23.4 23.7 24.1 24.3 24.6 24.9 25.3 25.6 25.9 26.2 26.5 26.8 27.1 27.4 27.7 28.0 28.3 28.6 28.9 29.2 29.2 29.9 30.2 30.6 31.0 31.2 31.6 32.0 32.7 33.0 33.4 33.8 34.1 34.5 34.9 22.4 22.7 23.0 23.3 23.6 23.9 24.2 24.5 24.8 25.1 25.4 25.7 26.0 26.4 26.6 26.8 27.0 27.7 27.4 27.6 27.6 28.2 28.6 29.0 29.3 29.6 29.9 30.3 31.0 31.2 31.6 31.9 32.3 32.6 33.0 21.4 21.7 22.0 22.3 22.5 22.8 23.1 23.4 23.7 24.0 24.3 24.6 24.9 25.2 25.4 25.6 25.8 26.0 26.2 26.4 26.4 27.0 27.3 27.6 28.0 28.2 28.6 28.9 29.6 29.8 30.2 30.5 30.8 31.2 31.5 20.7 20.9 21.2 21.5 21.7 22.0 22.3 22.6 22.9 23.2 23.4 23.7 24.0 24.2 24.4 24.6 24.8 25.0 25.2 25.4 25.4 26.0 26.3 26.6 27.0 27.2 27.5 27.9 28.5 28.8 29.1 29.4 29.7 30.0 30.3 19.9 20.2 20.5 20.7 21.0 21.2 21.5 21.8 22.1 22.3 22.6 22.9 23.1 23.3 23.5 23.7 23.9 24.1 24.3 24.5 24.5 25.0 25.4 25.7 26.0 26.2 26.5 26.8 27.5 27.7 28.0 28.3 28.6 28.9 29.2 19.2 19.4 19.7 19.9 20.2 20.4 20.7 20.9 21.3 21.5 21.7 22.0 22.3 22.6 22.8 23.0 23.2 23.4 23.6 23.8 23.8 24.2 24.4 24.7 25.0 25.2 25.5 25.8 26.4 26.6 26.9 27.2 27.5 27.8 28.1 18.4 18.6 18.9 19.2 19.4 19.6 19.9 20.1 20.4 20.6 20.9 21.2 21.4 21.7 21.9 22.1 22.3 22.5 22.7 22.9 22.9 23.4 23.7 24.0 24.3 24.5 24.8 25.1 25.7 25.9 26.2 26.5 26.8 27.1 27.4 17.9 18.1 18.4 18.6 18.9 19.1 19.4 19.6 19.9 20.1 20.3 20.5 20.7 20.9 21.1 21.3 21.5 21.7 21.9 22.1 22.1 22.5 22.8 23.0 23.3 23.5 23.8 24.1 24.6 24.8 25.1 25.4 25.7 26.0 26.2 17.4 17.6 17.8 18.0 18.2 18.4 18.6 18.8 19.0 19.2 19.4 19.6 19.8 20.0 20.2 20.4 20.6 20.8 21.0 21.2 21.2 21.6 21.8 22.0 22.2 22.4 22.6 22.8 23.2 23.4 23.7 24.0 24.2 24.5 24.8 16.4 16.6 16.9 17.1 17.3 17.5 17.7 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 19.8 20.0 20.2 20.2 20.6 20.8 21.0 21.2 21.4 21.6 21.8 22.2 22.4 22.6 22.9 23.1 23.4 23.6 15.5 15.7 15.8 16.0 16.2 16.4 16.6 16.8 17.0 17.2 17.4 17.6 17.8 18.0 18.2 18.3 18.4 18.6 18.8 19.0 19.0 19.4 19.6 19.8 20.0 20.2 20.4 20.6 22.1 21.3 21.5 21.8 22.0 22.3 22.5 平均 回弹 值Rm 38.2 38.4 38.6 38.8 39.0 39.2 39.4 39.6 39.8 40.0 40.2 40.4 0 37.9 38.3 38.7 39.1 39.5 39.9 40.3 40.7 41.2 41.6 41.6 42.4 0.5 36.8 37.2 37.5 37.9 38.2 38.5 38.8 39.1 39.6 39.9 39.9 40.7 1.0 35.2 35.6 36.0 36.4 36.7 37.0 37.3 37.6 38.0 38.3 38.3 39.0 1.5 33.4 33.7 34.1 34.4 34.7 35.0 35.3 35.6 35.9 36.2 36.2 36.9 测区混凝土强度换算表fccu,i(MPa) 平均碳化深度值dm(mm) 2.0 2.5 3.0 3.5 4.0 31.8 30.6 29.5 28.4 27.7 32.1 32.4 32.7 33.0 33.3 33.6 33.6 34.2 34.5 34.5 35.1 30.9 31.2 31.5 31.8 32.1 32.4 32.4 33.0 33.3 33.3 33.9 29.8 30.1 30.4 30.6 30.8 31.0 31.0 31.4 31.7 31.7 32.3 28.7 29.0 29.3 29.6 29.8 30.0 30.0 30.5 30.8 30.8 31.4 28.0 28.3 28.5 28.8 29.0 29.2 29.2 29.7 30.0 30.0 30.5 4.5 26.5 26.8 27.0 27.2 27.4 27.6 27.8 27.8 28.2 28.4 28.4 28.8 5.0 25.0 25.3 25.5 25.8 26.0 26.2 26.4 26.4 26.8 27.0 27.0 27.6 5.5 23.9 24.1 24.4 24.6 24.8 25.0 25.2 25.2 25.6 25.8 25.8 26.2 ≥6.0 22.7 23.0 23.2 23.5 23.7 24.0 24.2 24.2 24.7 25.0 25.0 25.4

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