預加應力臺 的英文怎麼說
中文拼音 [yùjiāyīnglìtái]
預加應力臺
英文
prestressing bed-
3 ^ the easiest damage area is outside of the tibial plateau and center and inboard of the complex according to the enlargement of the angle of exstrophy. exstrophy greater than 20 degree is possible critical angel of the beginning of damage and the precaution of complication after osteotomy
3 、隨膝關節外翻角度增加，最易受損傷的部位位於外側勝骨平臺和外側復合體中心和內側，外翻大於20 」可能為外翻應力破壞和截骨預防的臨界角度。Aim for the topic - study of prestressed lightweight concrete platform, from selecting style of the platform, to matching concrete material and admixture, to designing and building the model, to carrying out experiments of temperature field and stress performance, and analysis of finite element, some research work have been done as follows : 1
本文針對「輕質高強預應力混凝土平臺的研究」這一課題，從罐體結構型式的確定，混凝土基本材料及外加劑的選配，模型的設計製作，到模型結構在各種外荷載及溫度荷載作用下的受力性能試驗研究及罐體結構的有限元分析，展開了如下幾個方面的研究： 1The multi - purpose tester developed here is aim at testing the mechanics performance of the brittle material, which bases on modular design thought, it contains several modules as the machinery load component, platform of supporting, the function modules and the software system, they can be combined in different function modules to satisfies the need of different application situation. the tester can be used to measure not only general material properties such as elastic modulus, ultimate strain, strength, hardness and toughness, fatigue properties but also various special properties such as the local strength, and surface residual stress at the different location of the brittle component with non - destructive methods. thus the security and reliability of the brittle component can be evaluated and predicted
本文基於模塊化設計思想，研製了一臺專門針對脆性材料力學性能測試的多功能脆性材料試驗儀，其主要包括機械加載模塊、支撐平臺、功能模塊、測控系統、軟體系統等模塊，通過對這些模塊的不同組合可實現不同的功能及滿足不同應用場合要求;系統除了具有測試脆性材料的彈性模量、極限應變、強度、硬度、韌性等常規性能外，還具有無損測試玻璃構件不同位置的局部強度和表面預應力，進而對玻璃構件的安全可靠性和壽命進行預測等功能。Analyze and estimate the development of mobile communication industry. then we analyze the success experience of ntt docomo ' s i - mode, the failure teaches of wap promotion in europe, the - competition situation and the advantage & weakness of china mobile group, the character and development situation of china mobile group ' s data services : s ms & gprs. according to market subdivision & orientation, business operation mode, product price - making, product development, business innovation and strategic orientation of the company, we bring up six strategies that china mobile group should take in mobile data service development at present, that is, absorb icp in all aspects and develop different and creative applications & contents fast, establish the object market as soon as possible and provide services according to the demand of different market, make & apply the key technical standards and bring up technical demand to cell phone manufacturers & the other cooperation colleagues, quicken the construction of gprs network & data platform, dominate & promote the development of global mobile business by entering an alliance with the leading enterprises in the world, promote the reorganization of mobile data service section to insure the successful practice of related strategies
本文首先對中國目前的通信行業的演變歷程進行回顧和分析，特別對移動通信行業的發展進行了全面的分析和預測，通過對nttdocomoi - mode成功經驗及歐洲wap推廣失敗教訓的剖析，結合中國移動通信集團公司當前面臨的競爭態勢以及自身的優勢和弱點，並針對中國移動通信集團公司兩大移動數據業務sms和gprs的特點和發展現狀，從市場細分定位、商業運營模式、產品定價、產品開發、業務創新、運營商的戰略定位等方面，提出了近期中國移動通信集團公司在發展移動數據業務時應採取的六大應對策略，即：廣泛吸納icp ，大力開發豐富多彩、有創意的應用和內容；盡快確定目標市場，提供針對細分市場需求的服務；加快制定並實施關鍵技術標準，對手機製造商和其他合作夥伴提出技術要求；加速gprs網路及數據平臺建設；通過與全球領先的企業建立合作聯盟，主導並推動全球移動業務的發展；推進數據業務部門的組織重組，確保相關戰略的成功實施。The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation ， uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction
但大跨度橋梁混凝土索塔施工設備進場及現場管理都比較困難；塔柱多為空心變截面，且為高空作業，給模板工程及預應力張拉帶來一定困難；支撐系統連接的間隙變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫；索塔施工偏位會引起的承臺和基礎的附加應力，對加勁梁的架設影響大；懸吊結構未完體系（架設時）施工階段的風致振動往往影響到施工的安全和質量；實心塔柱部分體積較大，易產生溫度裂縫。分享友人