beam pulling 中文意思是什麼
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Electron type omnipotent testing machine cmt5504, hot to link card appearance xwb - 300a, pulling force testing machine lj1000, melting body flow speed appearance xrz400, simple to prop up roof beam strike testing machine xjj - 50j, etc
、電子式萬能試驗機cmt5504 、熱變形維卡儀xwb - 300a 、拉力試驗機lj1000 、熔體流動速率儀xrz400 、簡支梁沖擊試驗機xjj - 50j等 -
The calculation method of the utmost load of gray cast iron beam with rectangle section is obtained through the analysis of limit load behavior of the beam under the united action of bending and pulling, therefore the design method of limit load about forcing parts of cast iron pressure vessels is determined
通過分析灰口鑄鐵矩形截面梁在純彎曲和拉彎組合作用下極限載荷行為，提出灰口鑄鐵矩形截面梁極限載荷的計算方法，由此確定灰口鑄鐵壓力容器受壓元件的極限設計方法。 -
The distance from figure center of the parabola to the potential slide surface is less than half of the section length. mechanical conditions of this method include not only force equilibrium but also moment equilibrium. as for the beam - on - foundation, its pressure can be calculated by homogeneous hypothesis or winkler foundation hypothesis or infinite half elastic foundation hypothesis on the pulling anchor - cable step and by coulomb active earth pressure theory approximatively on the long term working step
對于樁在滑面以上段所受的坡體荷載，提出可按形心偏下的拋物線型分佈模式計算，並在滿足力的平衡條件的同時還滿足力矩平衡條件；對于地樑上作用的坡體荷載，提出在錨索張拉階段可按均布或溫克爾（ winkler ）地基假定或彈性半無限體地基假定來計算，在工作階段則一般可以近似按庫侖主動土壓力理論計算。 -
On the pulling anchor - cable step, the internal force of beam - on - foundation can be calculated by winkler hypothesis in the case of weak rock mass and infinite half elastic foundation hypothesis in the case of stratums that are of some elastic characteristics
在張拉階段，可以採用溫克爾假定計算破碎軟弱巖體上的地梁內力；對于有較好彈性性質的地層，則可按彈性半無限體地基計算地梁內力。 -
Being calculated, the frame beam - on - foundation may be disconnected to two single beams. on the pulling anchor - cable step, the internal force of single beam - on - foundation can be calculated by winkler hypothesis in the case of weak rock mass and infinite half elastic foundation hypothesis in the case of stratums that are of some elastic characteristics. the internal force of frame beam - on - foundat
在張拉階段，對于單片型地梁，可以採用溫克爾假定計算破碎軟弱巖體上的地梁內力；有較好彈性性質的地層，可按彈性半無限體地基計算地梁內力；對于框架型地梁，可按溫克爾地基模型計算其各單片梁的內力。 -
Slope pressure on the beam - on - foundation can be calculated by winkler foundation hypothesis or infinite half elastic foundation hypothesis on the pulling anchor - cable step and by coulomb active earth pressure theory approximately on the long term working step. in addition, calculation methods of internal force of prestressed anchor - cable beam - on - foundation are provided
對于作用於地樑上的坡體荷載，提出在錨索張拉階段可按winkler地基假定或彈性半無限體地基假定來計算，在工作階段則一般可以近似按庫侖主動土壓力理論計算。 -
Then we also study the effect of string on the dynamical characteristic under the symmetric load and not under the symmetric load as the prestressing is the key making beam string structure the balanceatie system, having large rigidity and embodying the superiority of dynamical characteristic of this structure, this paper studies and conceives how to deteimine the number of the prestressing in each stage of construction and through comparing between the plan of onetime and repeated pulling construction choose the suitable pulling construction plan
並且本文還研究了在對稱荷載和不對稱荷載兩種工況下，結構的受力性能隨豎向撐桿數目、結構垂跨比以及下弦索預應力等參數改變時的變化情況，總結出該結構受力方面的特徵，為實際工程設計提供依據。鑒于預應力是使張弦梁結構形成自平衡體系、具備較大剛度和體現結構性能優勢的關鍵，本文研究和探討了結構施工各階段該預應力大小的確定方法，通過一次張拉與二次張拉方案各項指標的比較，選擇適當的預應力張拉施工方案。
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