 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 3 | 1/1 | 返回列表 |
| 查看: 1268 | 回復(fù): 2 | |||
| 【懸賞金幣】回答本帖問題，作者791125791125將贈(zèng)送您 50 個(gè)金幣 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
791125791125木蟲 (小有名氣)
|
[求助]
請幫忙翻譯一個(gè)中文摘要
|
||
|
近幾十年來，隨著科技的進(jìn)步，橋梁結(jié)構(gòu)的發(fā)展也取得了舉世矚目的成就，而橋梁試驗(yàn)研究對于推動(dòng)和發(fā)展橋梁結(jié)構(gòu)設(shè)計(jì)計(jì)算理論、解決生產(chǎn)實(shí)踐中出現(xiàn)的難題起到了重要的作用。為保證大量既有橋梁的正常使用，需要對橋梁進(jìn)行荷載試驗(yàn)，檢驗(yàn)其承載能力狀態(tài)及結(jié)構(gòu)特性是否符合設(shè)計(jì)標(biāo)準(zhǔn)和使用要求。本文結(jié)合鄂州市濱湖橋載荷試驗(yàn)和理論計(jì)算進(jìn)行了相關(guān)的研究。 掌握橋梁試驗(yàn)方法是荷載試驗(yàn)取得成功的先決條件，本文對橋梁靜、動(dòng)載試驗(yàn)方法進(jìn)行了深入研究。在靜載試驗(yàn)方法中，對靜載試驗(yàn)方案作了較詳細(xì)的介紹，包括試驗(yàn)對象選擇、荷載工況設(shè)計(jì)、測點(diǎn)布置原則、試驗(yàn)荷載和加載方法等的選擇與確立，并對試驗(yàn)數(shù)據(jù)處理及指標(biāo)評定進(jìn)行了敘述；在動(dòng)載試驗(yàn)方法中，對橋梁常規(guī)動(dòng)力測試項(xiàng)目進(jìn)行了介紹，給出了實(shí)際橋梁動(dòng)載試驗(yàn)最常采用的加載方法，對橋梁動(dòng)力反應(yīng)、動(dòng)力特性的評定指標(biāo)進(jìn)行了介紹與總結(jié)。 對實(shí)際工程概況進(jìn)行了相應(yīng)的介紹，根據(jù)有關(guān)橋梁檢測內(nèi)容的要求，對此橋進(jìn)行了表觀檢測及靜、動(dòng)載試驗(yàn)，綜合評定結(jié)構(gòu)的安全承載能力是否符合設(shè)計(jì)標(biāo)準(zhǔn)和使用要求。表觀檢測中針對各構(gòu)件有無破損、開裂、變形、滲水、露筋銹蝕、淤塞積水等現(xiàn)象進(jìn)行了詳細(xì)的檢查，標(biāo)測出其具體位置及范圍，對于裂縫檢測，包括裂縫分布、寬度及深度等，并對結(jié)構(gòu)線型和標(biāo)高進(jìn)行了量測。 研究根據(jù)連續(xù)剛構(gòu)橋的特點(diǎn)制定了詳細(xì)的靜動(dòng)載試驗(yàn)方案。在靜荷載作用下，獲取了中跨、邊跨各控制截面最大應(yīng)變和撓度，并對剛構(gòu)墩墩頂梁附近最大負(fù)彎矩控制截面的應(yīng)變進(jìn)行了量測。用有限元軟件MIDAS對檢測橋梁進(jìn)行建模分析計(jì)算，與實(shí)測試驗(yàn)數(shù)據(jù)加以對比分析，對整個(gè)橋梁的實(shí)際承載力狀態(tài)做出評定。在動(dòng)載試驗(yàn)中，分別采集了橋梁結(jié)構(gòu)在脈沖、跳車及不同車速狀況下的動(dòng)態(tài)反應(yīng)信號，計(jì)算出結(jié)構(gòu)的自振頻率、阻尼比和各車速下的沖擊系數(shù)。 橋梁的靜動(dòng)載試驗(yàn)研究表明，濱湖橋的整體結(jié)構(gòu)基本完好，安全性能符合要求。表觀檢查結(jié)果表明，橋面鋪裝層磨損較為嚴(yán)重，結(jié)構(gòu)多處存在裂縫，伸縮縫已基本喪失功能，影響結(jié)構(gòu)的安全性及耐久性，必須盡快處理。本文的研究成果為此橋的維護(hù)加固提供了指導(dǎo)性的意見，對以后同類橋梁的檢測也具有較大的參考價(jià)值。 關(guān)鍵詞：荷載試驗(yàn)，表觀檢測，既有橋梁，有限元 |
回復(fù)此樓» 猜你喜歡
深圳大學(xué)碩士招生（2026秋，傳感器方向，僅錄取第一志愿）
已經(jīng)有10人回復(fù)
-
278求調(diào)劑
已經(jīng)有5人回復(fù)
-
化學(xué)工程321分求調(diào)劑
已經(jīng)有15人回復(fù)
-
材料專碩306英一數(shù)二
已經(jīng)有11人回復(fù)
-
334求調(diào)劑
已經(jīng)有3人回復(fù)
-
268求調(diào)劑
已經(jīng)有5人回復(fù)
-
293求調(diào)劑
已經(jīng)有16人回復(fù)
-
302求調(diào)劑
已經(jīng)有7人回復(fù)
-
312求調(diào)劑
已經(jīng)有6人回復(fù)
-
281求調(diào)劑（0805）
已經(jīng)有9人回復(fù)
poseidon_
金蟲 (小有名氣)
- 應(yīng)助: 10 (幼兒園)
- 金幣: 665.4
- 帖子: 79
- 在線: 29.3小時(shí)
- 蟲號: 527767
- 注冊: 2008-03-18
- 性別: GG
- 專業(yè): 高分子合成化學(xué)
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★
wypward(金幣+1):謝謝參與 2010-10-20 10:37:30
wypward(金幣-10):嚴(yán)禁機(jī)器翻譯 2010-10-21 11:55:56
wypward(金幣+1):謝謝參與 2010-10-20 10:37:30
wypward(金幣-10):嚴(yán)禁機(jī)器翻譯 2010-10-21 11:55:56
| In recent decades, as technology advances, the development of bridges has also made remarkable achievements of the bridge test structure for the promotion and development of bridge design and calculation theory, solve problems arising in production practices have played an important role. To ensure the normal use of a large number of existing bridges, bridges need to load test, test its carrying capacity and structural properties of state compliance with design standards and requirements. This paper Ezhou Lake Bridge load tests and theoretical calculations carried out relevant studies. Load master bridge test is a prerequisite for successful trials, the paper bridge static and dynamic tests conducted in-depth research methods. In the static test method, on the static test program made a more detailed introduction, including the test object choice, load cases design, test point arrangement principles, methods, test load and load the selection and establishment, and the test data processing and evaluation indicators were described; in the dynamic test method, conventional dynamic testing of bridge projects were introduced, given the actual bridge dynamic test loading methods most commonly used on bridge dynamic response, dynamic characteristics of the evaluation indicators were introduced and summarized. The actual profile of the corresponding project description, according to the requirements of the bridge test content, this bridge was the apparent detection and static and dynamic load test, comprehensive assessment of whether the carrying capacity of structural safety standards and meet the design requirements. Apparent whether the detection of each component for damage, cracking, deformation, seepage, exposed reinforcement corrosion, blockage of water and so a detailed examination, mapping out its exact location and extent of crack detection, including the crack distribution, width and depth, and structure of linear and elevation were measured. Research based on the characteristics of continuous rigid frame bridge developed a detailed static and dynamic test program. In the static load, obtained in the cross, while the maximum cross-section of the control strain and deflection, and the rigid frame near Pier Top of the maximum negative moment beam control section of the strain were measured. MIDAS using the finite element software to model on the test of bridge analysis and calculation to be compared with the measured test data analysis, the actual capacity of the bridge to make assessment of the state. In the dynamic test, the bridge structure were collected in the pulse, the speed bump and different conditions of the dynamic response signals, calculate the natural vibration frequency, damping ratio and the speed, the impact factor. Bridge static and dynamic test results show that the overall structure of the Lake Bridge, the basic integrity, safety performance in line with requirements. The apparent test results show that the bridge deck pavement wear more serious, there is many cracks in the structure, expansion joints have been basically destroyed, affecting the structure of the safety and durability, must be as soon as possible. The results of this study reinforce the maintenance of this bridge provides a guiding opinions on the future detection of similar bridges also have great reference value. |
2樓2010-10-17 23:56:21
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
ringzhu(金幣+30, 翻譯EPI+1): 2010-11-20 11:22:13
ringzhu(金幣+20): 2010-11-20 11:22:19
ringzhu(金幣+30, 翻譯EPI+1): 2010-11-20 11:22:13
ringzhu(金幣+20): 2010-11-20 11:22:19
|
In recent decades, with the progress of science and technology, the development of bridge structure are obtained remarkable achievement, and Bridges and experimental research on development of bridge structure design and calculation theory, to solve problems in production practice plays an important role. To ensure the normal use of both Bridges, need for bridge test, the test of load bearing capacity of the structural characteristics and compliance with design standards and requirements. Based on the EZhouShi binhu bridge load test and theoretical calculation and the related research. Master bridge load test test method is a prerequisite for success, this paper, dynamic load test prohibit bridge method is studied. In the static load test method of static load test plan for a more detailed presentation, including test object selection, load condition design, principles of measuring-point arrangement, load test and loading method to establish the choice, and the test data processing and evaluation index is described, In the dynamic load test method of dynamic test routine, bridge project are introduced, and presents a practical bridge load test of the commonly used method for dynamic loading and dynamic characteristics of the bridge, the evaluation indexes were introduced and summarized. In practical engineering survey, the corresponding contents according to the relevant requirements of bridge detection, the apparent test and the bridge of the dynamic and static load test, the comprehensive evaluation of the structure of bearing capacity of safety compliance with design standards and requirements. For every component in the apparent test without damage, craze, deformation, seepage, reinforcement corrosion phenomenon such as water, siltation detailed inspection, measuring its location and the scope for crack detection, including crack distribution, width and depth, and the structure of the linear and elevation measurement. According to the characteristics of continuous rigid-frame bridge study for a detailed scheme of static and dynamic load test. In the static load, the span of the control section, edge across the maximum deflection and strain, and the rigid-frame structure of the pier pier beam in the negative moment control section near maximum strain were measured. Using finite element software modeling for testing bridge "MIDAS" calculation and analysis, and the actual experiment data analysis, comparison of the actual state of the bridge to assess capacity. In the dynamic load test, the bridge structure in the car and different pulse, the dynamic response speed conditions, the structure calculating the signal frequencies, damping ratio and the speed of impact coefficient. The static and dynamic load test bridge study the overall structure of the bridge, the binhu basic condition, safety performance requirements. Results show that the apparent check surfacing layer wear relatively serious, structure, many existing crack expansion joints has basic loss function, affect the safety of the structure and durability, soon. The results of this bridge maintenance provides guidance opinion reinforcement of similar Bridges with the test and reference value. Keywords: load test, the apparent test, both Bridges and finite element method |
3樓2010-10-19 18:18:45
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 791125791125 的主題更新
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 一志愿天津大學(xué)化學(xué)工藝專業(yè)（081702）315分求調(diào)劑 +7 | yangfz 2026-03-17 | 7/350 |
|
|---|---|---|---|---|
|
|
[考研] 303求調(diào)劑 +3 | 睿08 2026-03-17 | 5/250 |
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|
|
|
[考研] 工科材料085601 279求調(diào)劑 +3 | 困于星晨 2026-03-17 | 3/150 |
|
|
|
[論文投稿] 有沒有大佬發(fā)小論文能帶我個(gè)二作 +3 | 增銳漏人 2026-03-17 | 4/200 |
|
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
|
[考研] 321求調(diào)劑 +5 | 大米飯！ 2026-03-15 | 5/250 |
|
|
|
[考研] 070300化學(xué)學(xué)碩求調(diào)劑 +6 | 太想進(jìn)步了0608 2026-03-16 | 6/300 |
|
|
|
[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
|
|
|
[考研] 本科南京大學(xué)一志愿川大藥學(xué)327 +3 | 麥田耕者 2026-03-14 | 3/150 |
|
|
|
[考研] 一志愿哈工大材料324分求調(diào)劑 +5 | 閆旭東 2026-03-14 | 5/250 |
|
|
|
[考研] 308 085701 四六級已過求調(diào)劑 +7 | 溫喬喬喬喬 2026-03-12 | 14/700 |
|
|
|
[考研] 一志愿中科院，化學(xué)方向，295求調(diào)劑 +4 | 一氧二氮 2026-03-11 | 4/200 |
|
|
|
[考研] 求材料調(diào)劑 +5 | 隔壁陳先生 2026-03-12 | 5/250 |
|
|
|
[考研] ［0860］321分求調(diào)劑，ab區(qū)皆可 +4 | 寶貴熱 2026-03-13 | 4/200 |
|
|
|
[考研] 0856材料與化工301求調(diào)劑 +5 | 奕束光 2026-03-13 | 5/250 |
|
|
|
[考研] 26調(diào)劑/材料/英一數(shù)二/總分289/已過A區(qū)線 +6 | 步川酷紫123 2026-03-13 | 6/300 |
|
|
|
[考研] 四川大學(xué)085601材料工程專碩 初試294求調(diào)劑 +4 | 祝我們好在冬天 2026-03-11 | 4/200 |
|
|
|
[考研] 求調(diào)劑 +5 | 一定有學(xué)上- 2026-03-12 | 5/250 |
|
|
|
[論文投稿]
投稿問題
 5+4
|
星光燦爛xt 2026-03-12 | 6/300 |
|