stress bolt 中文意思是什麼

stress bolt 解釋
拉力螺栓
  • stress : n 1 壓力,壓迫,緊迫,緊張。2 【語音】重音;重讀;【詩】揚音;語勢,著重點。3 重要(性),重點,...
  • bolt : n 1 螺釘,螺栓。2 (門窗等的)插銷;閂,鎖簧。3 箭,矢;弩箭;【軍事】槍機,槍栓。4 電光,閃電。5...
  1. Stusy on the bolt - mesh - anchor supporting technique in the high - stress soft coal roadway

    高應力軟巖煤巷錨網索支護技術研究
  2. Variation of bolt body strength under state of compound stress

    復合應力狀態下的錨桿桿體強度變化
  3. In this test, a special bolt - jack is used to exent of prestressing force to brace angles as the whole structure is under dead - load. in this state brace angles withstand partly load before twice - load and the stress and strain of concrete are decreased. in this way the aim of removal of load and strengthening can be reached

    本試驗中採用專用螺栓千斤頂在恆定荷載水平下對混凝土柱角鋼撐桿施加預壓應力,使外包角鋼在二次受力前即分擔部分荷載,使混凝土應力水平和應變水平降低,達到卸載與加固同步進行的目的。
  4. Abstract : by means of metallographical examination and sem, the microstructure characteristics, macro - and microfractographs of the brittle broken wheel hull bolt of bj212 automobile have been studied. the results show that the thin - headed screw, with excessively deep carbonitriding layer and hardening layer, has less resistance to brittle fracture in the thin area of its head. at the root of the head connecting the stem, a tensile stress may emerge owing to the non - even quenching stress. those are the two reasons for low torque fracture of bolt

    文摘:藉助金相、掃描電鏡等手段對低扭矩脆斷的bj212汽車輪殼螺栓的金相組織特徵,宏觀和微觀斷口形貌等進行了研究,結果表明:這種頭部薄的螺栓,滲層和淬透層過深,使頭部薄區脆斷抗力降低,在頭部與桿的根部,由於淬火應力不均勻導致根部產生拉應力,均是導致螺栓低扭矩斷裂的原因。
  5. Finite element stress concentration analysis of rail joint bolt

    鋼軌接頭螺栓的有限元應力集中分析
  6. Application of field stress in designing bolt supporting

    地應力在錨桿支護設計中的應用
  7. Combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao - xin line of chongqing light railway, it is set forth the methods about choosing the support system and its parameter, digging methods of underground space, measuring and testing methods for the stress of the support system ; the testing results and variation pattern were analyzed for the stress of the initial supporting i - steel axial stress of bolt, stress of shot - concrete, supporting pressure of temporary i - steel and stress of steel of the second lining, then, the reason for deformation of the support system induced by sharp increase of i - steel was determined

    摘要結合重慶市輕軌較新線大坪車站大跨度地下空間dk7 + 692斷面施工支護體應力監測的工程實例,闡述了該大跨度地下空間支護結構的參數選擇、地下空間的開挖方法、支護體結構的應力量測方法及測試手段;分析了支護體初期支護工字鋼拱應力、錨桿軸力、噴射混凝土內應力、臨時工字鋼支撐應力、二次襯砌鋼筋應力等測試結果和變化規律;確定了工字鋼拱應力急劇增大而可能引起支護體系失穩的原因。
  8. Further more, the fracture possibility is analyzed with fracture mechanics after the stress calculation of local high stress area around the bolt hole in shell flange and the measurement of fracture toughness of gray cast iron. the improving structure of bolts connected head and shell flange is brought forward

    此外,在計算獲得缸體法蘭螺栓孔局部高應力區的應力水平后,由斷裂力學分析發生脆性斷裂的可能性,並提出烘缸缸體與缸蓋聯接結構的改進方案。
  9. As the bolt tension increase, the tension of rail web, stress of joint bar and stress of joint bolt would increase accordingly, but the displacement of rail would become smaller

    螺栓扭矩增大,接頭區鋼軌軌腰拉力、夾板應力、螺桿內應力都會增大,而鋼軌位移會隨著螺栓扭矩的增大而減小。
  10. Depend on the advantage of military industry, it has been a professional company which could research, develop, design and machining pre - stress cable anchor, bolt and other machine

    藉助軍工優勢成為一家集科研設計加工預應力錨索錨具和機具的專業企業。
  11. Analysis on stress transmission and deformation of bolt in soil

    土層錨桿應力傳遞及變形分析
  12. Application and analysis of bolt stress meters in abutment construction project in yunnan provice

    雲南某水電站壩肩邊坡的錨桿應力計應用與分析
  13. Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further

    首先,本文在綜合分析隧道穩定性影響因素及失穩破壞模式的基礎上,對全長粘結式砂漿錨桿作用力學機理進行了深入研究,為全長粘結式砂漿錨桿的有限元模擬分析奠定了基礎;其次,針對傳統錨桿有限元模擬方法的局限性與不足,在上述全長粘結式砂漿錨桿作用力學機理研究基礎上,建立出能反映界面非線性粘結的新型復合砂漿錨桿有限單元模型;然後,運用上述復合砂漿錨桿單元模型,引進非線性有限元分析手段,開發了隧道支護穩定性分析的有限元程序,並就全長粘結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討,得到了對隧道支護設計具有指導意義的結論;最後,運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算,探討了其應用方法,並就隧道變形與應力及塑性區分佈規律進行了分析,從而提出了合理的支護方案,為隧道支護設計提供了參考依據,完善了隧道全長粘結式砂漿錨桿支護的理論與方法。
  14. Based on ansys, this paper studies stress concentration on single notch of eight kinds of high strength bolts used in grid structure, obtaining their stress concentration coefficients, discussing the effect of ascending angle, bottom radius of screw thread and bolt - ball on stress concentration, introducing their effect coefficients of a1, a2, a3, putting forward the formulae of stress concentration coefficient

    本文以ansys有限元軟體為研究手段,針對網架螺栓球節點的8種螺栓規格進行單缺口應力集中分析,定量求得相應的應力集中系數k _ t ;論述了螺紋升角、螺紋牙根圓角半徑r及球栓直徑比d / d對k _ t的影響,並引入相應的影響系數_ 1 、 _ 2及_ 3 ,最終提出了應力集中系數k的計算公式。
  15. The data from xinbi high - slope shows that it ' s a stable slope. 3. the result of elasto - plastic finite element analysis shows that : ( 1 ) excavated - slope face would induce loose belt in rock ; ( 2 ) horizontal ground stress, joined rockmass and weak sandwich would make great unfavorable influence on slope stabilization and axial force of rock bolt

    有限元數值分析結果表明:邊坡的開挖會使坡面巖體產生松動帶;構造水平地應力、結構面、軟弱夾層對坡體穩定及支護在坡體上的錨桿的受力情況有較大的不利影響。
  16. Finally, theoretical results and the fatigue test data of equal amplitude are combined, which is introduced the conception of " range of hotspot stress ", and the method of fatigue design for grid structure with bolt - sphere joints is obtained in this paper

    最後,將本文的理論研究成果與常幅疲勞試驗數據相結合,並引入「熱點應力幅」的概念,建立了螺栓球節點網架結構的疲勞驗算方法。
  17. Using the general finite element programming package of ansys10. 0, the study of gabled frames beam - column end - plate connections is made, considering synthetically nonlinear ( material, geometry and contact ), bolt pretension forces and ratio of axial compression stress to strength. elastic - plastic finite element analyses are carried out among 28 species of 3 series under monotonic loads, in order to discuss the influence of parameters including stiffness of end - plate, bolt diameter, friction coefficients and so on

    本文使用通用有限元軟體ansys10 . 0綜合考慮了三重非線性(材料非線性、幾何非線性以及狀態非線性)的影響,同時考慮了螺栓預拉力的影響,對考慮端板厚度、端板加勁肋的設置、螺栓直徑、摩擦系數等參數不同的3個系列(端板系列,螺栓直徑系列,摩擦系數系列) 28個試件進行了有限元數值模擬,對連接節點的性能進行了分析研究。
  18. The distribution features of the stress fields caused by the pretensioned stresses of bolts and cables, and the effects of steel strip to the bolt pretensioned stress diffusion were analyzed through finite difference numerical modelling

    採用有限差分數值計算軟體分析了不同預應力下錨桿、錨索產生的應力場分佈特徵,以及鋼帶對錨桿預應力擴散的作用。
  19. The new concepts, such as the active supporting coefficient, the coefficient of strength utilization, the coefficient of pretensioned bolt length, the effective compressive zone, the coefficient of pretensioned stress diffusion, the framework and mesh structure of the effective compressive zone, and the critical supporting stiffness were put forward

    提出錨桿主動支護系數、強度利用系數、預應力長度系數、有效壓應力區、預應力擴散系數、有效壓應力區骨架網狀結構及臨界支護剛度等概念。
  20. Application of high - strength pre - stress bolt supporting in deep high - stress soft rock roadways

    高強預應力錨桿支護在深部軟巖巷道的應用
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