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yxwang2006銀蟲 (初入文壇)
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[求助]
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| 該結(jié)構(gòu)為200cm×20cm×20cm的混凝土梁，所處的環(huán)境濕度RH=70%，C50混凝土,混凝土收縮開始時間為3d；施工階段劃分為：混凝土澆筑完成后前60d混凝土梁一端固結(jié)一端自由，即靜定狀態(tài)；混凝土澆筑完成60d后，混凝土梁邊界約束條件變?yōu)閮啥斯探Y(jié)，結(jié)構(gòu)由靜定轉(zhuǎn)化為超靜定。 |
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ssssllllnnnn 
至尊木蟲 (知名作家)
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RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-09-24 12:29:16
yxwang2006(RXMCDM代發(fā)): 金幣+2, 多謝應(yīng)助！ 2014-10-27 21:52:47
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-09-24 12:29:16
yxwang2006(RXMCDM代發(fā)): 金幣+2, 多謝應(yīng)助！ 2014-10-27 21:52:47
| The size of the concrete beam of C50 class of concrete is 200cm × 20cm × 20cm. The relative humidity (RH) is 70%. The starting time for concrete shrinkage is the third day. After the completion of the concrete pouring, the construction is divided into two stages: the first stage in within 60 days in which concrete beams are in statically indeterminate state by consolidation of one end of the beams while the other end being free; the second stage is beyond 60 days (after the completion of the concrete pouring) in which concrete beams are in statically super-indeterminate state by consolidation of both end of the beams. |
2樓2014-09-24 11:40:35
wanfuping
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RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-09-24 12:29:06
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-09-24 12:29:06
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如果是“混凝土收縮開始時間為第三天” A beam, made of C50 concrete, the structural size of whom is 200cm×20cm×20cm and the environment humidity RH 70%, begins contracting from 3th day. Starting from the moment when its pouring is finished, the beam transforms from the initial statically determinate structure with one end is constrained and the other freedom, formed during the first 60 days after pouring, to statically indeterminate one with both ends constrained, formed from the 60th day after pouring. 如果是“混凝土收縮時間為三天” A beam, made of C50 concrete, the structural size of whom is 200cm×20cm×20cm and the environment humidity RH 70%, will finish contracting within 3 days. Starting from the moment when its pouring is finished, the beam transforms from the initial statically determinate structure with one end is constrained and the other freedom, formed during the first 60 days after pouring, to statically indeterminate one with both ends constrained, formed from the 60th day after pouring. |
3樓2014-09-24 12:00:43
wanfuping
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yxwang2006(RXMCDM代發(fā)): 金幣+2, 多謝應(yīng)助！ 2014-10-27 21:53:05
yxwang2006(RXMCDM代發(fā)): 金幣+2, 多謝應(yīng)助！ 2014-10-27 21:53:05
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應(yīng)該是這樣的: 如果是“混凝土收縮開始時間為第三天” A beam, made of C50 concrete, the structural size of whom is 200cm×20cm×20cm and the environment humidity RH 70%, begins contracting from 3th day. Starting from the moment when its pouring is finished, the beam transforms from the initial statically determinate structure with one end constrained and the other freedom, formed during the first 60 days after pouring, to statically indeterminate one with both ends constrained, formed from the 60th day after pouring. 如果是“混凝土收縮時間為三天” A beam, made of C50 concrete, the structural size of whom is 200cm×20cm×20cm and the environment humidity RH 70%, will finish contracting within 3 days. Starting from the moment when its pouring is finished, the beam transforms from the initial statically determinate structure with one end constrained and the other freedom, formed during the first 60 days after pouring, to statically indeterminate one with both ends constrained, formed from the 60th day after pouring. |
4樓2014-09-25 22:50:27
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