集束荷載 的英文怎麼說
中文拼音 [jíshùhézǎi]
集束荷載
英文
crowd loading-
In this paper, five restrained beams with web and different longitudinal reinforcement were tested under static point loads, with the shear - span ratio being kept around 1. 5. on this basis, the overall process of cracking development under shear and the effect of longitudinal reinforcement ratio on it was investigated
本文通過集中荷載作用下五根剪跨比為1 . 5 、不同縱筋率的有腹筋約束梁的試驗,深入研究了有腹筋約束梁的受剪破壞全過程及縱筋率對其的影響。Thea, aimed at different situation and with the combination of the compatibility truss theory and limited balance principle and the truss - strut model, the shear strengthening theoretic formula for the beams under concentrated load is put forward. ground on the test data and real engineering, the simple design formula is afforded
然後,作者以桁架一拱模型和軟化桁架理論為基礎,綜合極限平衡原理,考慮了拉應變存在條件下混凝土抗壓強度的軟化,針對不同加固情況推導了集中荷載作用下的矩形截面約束梁的抗剪加固理論公式。On the basic of former research men ' s experience, 18 experimental members ( including 9 simple beams and 9 restrained beams ) are designed and tested. in the experiment, phenomena are observed and record by taking photos in the whole process from the first crack appears to test members crash completely, experimental data is attained including load values of crack - appear load, critical load and terminal load, stress values of reinforcing steel bar stress, compressed concrete stress and beam flank stress and values of deflection etc. by analyzing the crack ' s appearing and developing form and stress values of concrete and steel bars, the crash modes of test beams are defined ; shearing force - deflection curves are contrasted and analyzed ; the effects on shear strength of the three factors as shear span ratio, concrete strength and restraining moment are also analyzed
借鑒已有試驗的經驗,本文設計和完成了對18根超高強混凝土無腹筋梁(包括9根簡支梁和9根約束梁)在集中荷載下抗剪強度的試驗,觀察了試件從裂縫出現到完全破壞失去承載能力全過程的試驗現象並通過拍照進行記錄,獲得了試件的斜裂縫出現荷載、臨界斜裂縫荷載和極限荷載等荷載值和縱筋應變、混凝土受壓應變和梁側混凝土應變等應變值以及撓度值等。According to construction features of three - span prestressed concrete and continuous rigid frame box with v pier bridge, the paper demonstrates the shell finite element theories, c onstruct the spatial model, and researches its spatial stress and variable regularity under different loads including uniform load, concentrated load and prestressing force wire. morever, the paper studies vibratory modal of three - span prestressed concrete and continuous rigid frame box with v pier bridge, and sets about experimental investigation of the corresponding practical bridge
本文根據典型的三跨預應力混凝土墩連續剛構橋的特點,提出採用板殼有限元法計算理論,建立其空間分析模型,研究該橋在不同荷載(均布恆載、集中活載、預應力束)支承條件下的空間受力特性和變化規律:探討了典型三跨預應力混凝土墩連續剛構橋的空間靜動力特性及相應的振動模態;探索一般的平面理論預測值與實際空間效應的差異,並進行相應的試驗研究。分享友人