The relationship between stress and strain of concrete in prestressed concrete bridge s is written as algebraic form within load duration and the equilibrium equations of internal force and compatibility conditions are introduced.

首先將預(yù)應(yīng)力混凝土橋梁中考慮收縮、徐變影響的任意時刻混凝土應(yīng)力99黄色视频在线观看、應(yīng)變關(guān)系在持荷時段內(nèi)寫成代數(shù)形式免费看操逼黄片av，引入內(nèi)力平衡方程及變形協(xié)調(diào)條件后，提出了計入截面上鋼筋位置欧美一级A片免费不卡全部完曰久、配筋率亚洲一区二区视频在线免费视频、預(yù)應(yīng)力鋼筋松弛、混凝土彈性模量隨時間變化等影響的徐變效應(yīng)分析的全量形式自動遞進法国产乱子伦牲交视频，并建立了計算式在线观看国产美乳视频，適用于任何形式的收縮、徐變特性表達式；基于建立的全量形式公式国产精品亚韩精品无码a在线观看，可方便地求解任意時刻混凝土免费看黄网址国产精品、鋼筋的應(yīng)力與應(yīng)變和梁體豎向變形。

It was found that the puncture strength, tensile strength and modulus as well as the inverse of relaxation coefficient of starch/dHG films pronouncedly increased with increasing dHG, accompanied with a decreasing tendency in puncture deformation, extensional creep compliance, retardation time and tensile strain at break.

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In the absence of additional cross-linker, increasing molding temperature from 25 to 125℃significantly enhances crosslinking density of the three-dimensional proteinnetwork through disulphide bonding, leading to increase of tensile strength, Young\'smodulus and relaxation time.

未添加任何交聯(lián)劑時女人与拘猛交69，僅將模壓溫度從25℃升高到125℃，可提高蛋白質(zhì)網(wǎng)絡(luò)的二硫鍵交聯(lián)密度免费黄色黄站，導(dǎo)致拉伸強度和楊氏模量增高www.国产盗摄.com、松弛時間延長。

The relaxation modulus, the relaxation time spectra and the structure parameters C 1 and C 2 in the WLF equation were derived from the dynamic mechanical temperature spectra of the cationic dyeable PET fibres after heat setting.

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