荷載變形試驗 的英文怎麼說
中文拼音 [hézǎibiànxíngshìyàn]
荷載變形試驗
英文
load-deformation test-
It can be said that the solution to the space problem of limit load and the calculation of foundation bearing capacity for deformed groundwork have some academic and scientific value. the dynamic pile testing of foundation and batholith as well as deep well load testing system has been put into use in real work environment and gained some social and economic benefit
本文關于界限荷載的空間問題解答,考慮地基變形的地基承載力工程演算法具有一定的學術價值;本文中的地基(及巖基)承載力動測法及深井載荷試驗系統已在工程實踐中應用,並取得了較好的社會和經濟效益,具有一定的工程實用意義。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。First, the generalized elastic theory is employed into in single pile analysis. the degeneration solution is accordant with poulos " results. analyzing the load - displacement behavior of the battered pile, the results agree well with meyerhof ' s model experiments and zhanglm ' s centrifuge experiments
對于直樁,退化為彈性理論的計算結果同poulos的結果一致,退化為荷載傳遞法與他人的結果基本吻合;然後研究了斜樁的荷載-變形特性,把公式用於計算meyerhof的模型試驗以及zhanglm的離心機試驗的荷載-位移關系,發現同試驗結果吻合較好。Nowadays, the ways to detect the piles are various, and all of them are limited in some aspects. for instance, coring test do large scathe on the piles, and static load test will waste much time, money and energy, while some ways are hard to operate as the limitation of the length and the diameter of the piles, and the special condition on the spots, such as high - strain, low - strain, and so on. furthermore, the result can only be gained under the complex analysis of the collected wave, and under the validation of the coring test
目前,工程中常用的樁基檢測方法很多,但都存在著一些弊端:有的對樁破壞性嚴重,例如抽芯檢測;有的耗時、耗財、耗力,例如靜載荷試驗;還有的如低應變、高應變等檢測技術由於受到樁長、樁徑以及現場一些特殊情況的限制,操作很不方便,而且採集到的波形要經過比較復雜的處理分析方能得出結論,而這個結論卻還要輔助取芯手段加以驗證。Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。Based on the destructive test of certain old pre - stressed concrete hollow slab after structural strengthening by cfs, the destructive mechanism and ultimate bearing capacity of old pre - stressed hollow slab after structural strengthening is being researched, which is useful for the strengthening design of old bridge and solvating of single slab problem
摘要通過某已使用10年的舊橋預應力混凝土空心板受拉區碳纖維布加固后的破壞荷載試驗研究,對受拉區加固后的舊橋預應力混凝土空心板的破壞機理、變形性能及極限承載能力等進行了研究,為舊橋預應力混凝土空心板的加固設計及單板受力問題的分析解決提供了試驗依據。The deformation of the waffle slab can be calcu1ated by using the tab1es of two - - way so1id s1ab. but with a changing flexural rigidity coefficient, which was very c1ose to the test va1ue in the uncracked and cracked stages
根據試驗結果,用極限平衡法可以便捷和較為準確地求得雙向密肋樓蓋的極限平衡荷載;提出了利用雙向板表格計算雙向密肋樓蓋的變形。This paper is focused on a series of experiments including two kinds of large - scale composite walls with different joint fashion under low cyclic loadings. the experiments are carried out in order to know the seismic of composite walls out - of - plane and research the impact of deformation out - of - plane on carrying ability in - plane, experimental design reference is expected to achieve and tech support provide
為了彌補這方面的研究不足,本文對兩種連接方式足尺復合墻片進行了低周反復荷載作用下的恢復力試驗,以了解配筋砌塊復合墻的平面外抗震性能,同時研究平面外變形對墻體平面內抗震性能的影響,為配筋砌塊復合墻的設計提供依據。By field loading tests and small strain measurement, the result of improving soft soil with cement power - sprayed piles is alalyzed. the author believes that the result is good and composite foundation is able to meet the superstructure ' s requirement for foundation strength and formation
通過現場荷載試驗和低應變測試,對粉噴樁加固效果作了分析。從試驗結果來看粉噴樁加固軟土路基加固效果很好,能滿足上部結構對地基強度和變形的要求。This paper presents the experimental results of typical elements of field works such as reinforced concrete beams, fiber glass reinforced plastic honeycomb sandwich plates, flexible covers ; examines the interrelationship of the loads and deformation under the condition of large deformation ; obtains the laws governing the interaction of the medium and the structure ; solves the design and calculation problems related to shallow buried structures in soil
本文在對大量試驗資料進行整理和作了大量分析計算的基礎上,選取了野戰工事中有代表性的構件即鋼筋混凝土梁,玻璃鋼蜂窩夾層梁式板和帆布被復作為研究對象進行試驗研究。深刻地考察了大變形條件下荷載和變形之間的內在關系,進而掌握了介質與結構相互作用的規律,較好地解決了土中淺埋結構的設計計算問題。The plexiglass model test is carried out by two selective shape, the stress of each test operating loads was obtained in order to validate the correctness of the finite element modeling. in this paper, a regularity of shear lag effect of main sections in two kinds of box girder is given. as the foresight project of double - level - driveway continuous box girder, this research fully utilizes the space of box girder structure and flexural and torsional properties of high - depth box girder, which have innovative significance and applied foregroundin engineering
對所選擇的結構形式進行縮尺有機玻璃模型試驗,得到實腹連續箱梁和空腹箱梁在各種試驗工況荷載下的應力,通過換算分析,驗證了本文所建立的有限元模型的準確性,由此得到兩種箱梁各主要斷面剪力滯效應的變化規律。The influence of such parameters as axial load index, aspect ratio and percentages of lateral reinforcement, on seismic performance of reinforced concrete frame column in hong kong and analyses the distribution relationships of flexural deformation, shear deformation and slippage of longitudinal reinforcement in joint zone
根據試驗結果,討論了軸壓比、配箍率、剪跨比等參數對其抗震性能的影響,分析了水平荷載作用時塑性鉸區的彎曲變形、剪切變形和縱向鋼筋粘結滑移變形所產生的位移在框架柱總水平側移中所佔的比例及其變化規律。The load transverse distribution coefficient of test is in coincidence with the calculating hypothesis. prestress is linear distribution along the section height. the deformation of the section is according with the plane hypothesis
通過對試驗結果與有限元計算結果的對比分析,得出結論如下: 1 、本文所測試的荷載橫向分佈系數符合計算假定;預應力沿截面高度分佈具有較好的線性關系,截面變形符合平面假設。Rubber components often appear interface failure due to the actions of mechanical loads and the influences of enviorment. hence, in this paper the interface failure mechanism has been studied by means of finite element method and fracture machinics. the numerical results of testpieces deformation with crack are in close agreement with experimental values
橡膠鋼雙材料試件由於機械載荷和環境的影響經常在粘接界面發生破壞而導致結構失效,藉助有限元和斷裂力學對界面破壞機理進行研究,得到的存在初始裂紋的試件變形與實驗結果吻合較好。Tow speciments of prestressed fabricated beam - column subassembly were tested under reversed cyclic loading. experimental studies were carried out to investigate the strain distribution, failure mechanism and load - bearing capacity on the beam - column connections, as well as ductility, hysteresis curves energy dissipation, displacement restoring capacity of full pc speciments
本文通過兩榀預壓裝配式樑柱組合體在低周反復荷載下的試驗,了解了預壓裝配式框架梁端截面應變分佈、破壞機理和極限承載能力;探討了全預應力配筋截面延性特徵、滯回性能、耗能能力和變形恢復能力。Doorsets - diagonal deformation test under static load
門組合件.靜載荷下的對角變形試驗Referring to the current study of cast - in - situ piles with expanded branches and plates and methods of pile foundation analysis, the paper makes a thorough research on the bearing and deformation behavior of vertically loaded piles with expanded branches and plates
本文基於已有的擠擴支盤樁研究成果及樁基荷載傳遞理論,通過現場載荷試驗、荷載傳遞法和有限單元法,對豎向荷載作用下擠擴支盤樁單樁和群樁的承載變形特性分別進行了研究。Based on the formula which is used to compute the lateral resistance of single pile deduced by wang qitong, a formula is setup whose precondition is that the pile and the lateral soil directly around the pile deform in - phase. on the basis of that the contact stress of the foundation is equal, a formula that can be used to conform the stress - ratio of the composite ground is set up, on the same time, the principles of the deformation harmony of the soil and the piles in the composite ground are also discussed. combining with results of this test, a formula which can calculate the bearing capacity that considering the effect of group piles of the composite ground is also deduced
視攪拌樁樁體為均質彈性介質,推導了復合地基中單樁有效樁長的理論計算公式;根據王啟銅柔性樁樁側摩阻力計算公式,以樁側土與樁體協調位移為前提推導了柔性樁樁側摩阻力的計算公式;以基底接觸應力均勻分佈,樁體、樁間土均質為前提,討論了樁,土協同工作原理,從而得出復合地基樁、土荷載變形特性,以及樁、土應力比計算公式;結合本次試驗,通過計算加載時樁體與土體的荷載分擔情況以及在極限狀態下樁土承載力發揮值,提出考慮群樁效應的攪拌樁復合地基承載力計算公式。To analyze the seismic behavior of the lattice type src members, look for a section patterns which is not only safety but also economic, in this paper, a experiment of seismic behavior about nine truss type src columns and three rc columns which strength, steel requirements and axial load are different, the deformation capacity and failure patterns are observed, and the hysteretic cycle are obtained. according to the experiment results, it is different between the failure patterns of src members and rc members
為了分析空腹式鋼骨混凝土的抗震性能,尋找一種即安全又經濟的src截面形式,本文對9根不同強度、不同配鋼率、不同軸力的src試件和3根普通rc試件做了抗震性能試驗,在保持軸力不變的情況下,採用荷載? ?變形混合控制方法施加往復的水平荷載,觀察其變形性能與破壞狀況,測得各試件的滯回曲線。Based on tests of three moment - resisting beam - column connections under low reversed cyclic loading, this paper inquires into the failure pattern, hysteresis loop curves, displacement - restoring capacity, displacement ductility and energy dissipation of the precast prestressed beam - to - column concrete connections with unbonded tendons
摘要通過三個框架節點在低周反復荷載下的試驗,對無粘結預應力裝配式混凝土框架連接的破壞形態、滯回曲線、變形恢復能力、位移延性、能量耗散等性能進行了研究。分享友人