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[试验检测师] 2012年广东水运工程检测工程师结构简答题 [复制链接]

1#
1、一根简支搁置的钢筋混凝土梁宽50cm,高100cm,跨距6m,单位长度重量12.4KN/m,试判别下列各题:①自重情况下,梁的路中弯矩两支座处剪力分别为;u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
②在梁的跨中施加50KN集中荷载,则梁跨中弯矩和支座剪力分别为;u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
③在梁的二个三分点处(即距2个支座各2米处)各施加30KN荷载,则梁跨中弯矩和支座剪力分别为。u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
2、某工程对一根长40m的预应力混凝土空心桩进行静载桩试验,要求进行到地基土破坏,桩身截面尺寸为500mm×500mm。空心直径200mm,桩顶和桩端各有2m空心段,预计沉桩最大试验荷载36000KN。u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
①试桩与锚桩之间中心距不得小于()u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
②试验采用快速维持荷载法,每级加载和卸载时间分别为()u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
③各级荷载及桩顶对应沉降见下表u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
荷载KNu¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
600u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
900u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
1200u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
1500u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
1800u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
2100u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
2400u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
2700u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
300u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
3300u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
3600u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
沉降mmu¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
2.1u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
3.8u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
5.7u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
8.0u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
10.5u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
13.2u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
16.3u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
19.6u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
23.4u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
44.5u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
76.8u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
沉桩极限承载力()u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
④试验时采用10根对称布置的锚桩,锚桩尺寸与试桩相同,锚桩主筋采用Φ25钢筋,抗拉强度设计值为310KPa,则每根锚桩至少配置()根Φ25钢筋,写出计算过程。u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
⑥桩的极限端阻力(),写出计算过程。u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
5、某梁跨中载面处测点布置如下图所示,已知ε1=-90με,ε2=-80με,ε3=10με,ε4=100με,ε5=110με,E=30GPa,截面宽b=100mm,截面高h=200mm,求该截面上的轴力N和弯矩Myu¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
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2#

计算题太多了呢u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
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3#

有的难度!!!1u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
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4#

真的难啊,刚出学校门的容易考,结构力学都是类似计算u¼Æˆ;ï/ޕåbbs.3c3t.comã$¶ /o(¾H%
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