Combined with the concept of pre-stressed equivalent load, in accordance with elastic thin plate under load-line deflection calculation relevant theory, the paper deduced the board mid-point value of the anti-arch expression when rectangular plates arranged pre-stressed in a cross.%本文结合预应力等效荷栽的概念,按照弹性薄板在线荷栽作用下挠度计算的相关理论,推导出矩形板在跨中布置预应力时,板中点反拱值的表达式.
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