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    雷自學(xué)，李娜，張瓊，袁衛(wèi)寧
    (長(zhǎng)安大學(xué)建筑工程學(xué)院，西安710061)

[摘要] 基于預(yù)應(yīng)力混凝土受彎構(gòu)件正截面承載力的計(jì)算原理，采用MathCAD軟件進(jìn)行編程，精確計(jì)算任意截面的預(yù)應(yīng)力及非預(yù)應(yīng)力混凝土構(gòu)件的正截面受彎承載力。本文以箱形截面梁為例，對(duì)編程方法做了說明，并采用大型通用有限元軟件ANSYS創(chuàng)建實(shí)體模型，進(jìn)行了非線性有限元計(jì)算，證明了MathCAD編程計(jì)算方法的實(shí)用性和有效性。
[關(guān)鍵詞] MathCAD；正截面受彎承載力；有限元

Calculating the bending capacity of normal section of prestressed concrete beam with MathCAD
LeiZixue, LiNa, ZhangQiong, YuanWeining

Abstract: On the basis of the principle for calculating the bending capacity of normal section of prestressed concrete beam, the flexural capacity of normal section of prestressed concrete beam and reinforced concrete beam of arbitrary section was derived accurately by programming with MathCAD. With box a girder as example, this paper explains the method of programming, and an finite element calculation was carried out by modeling with ANSYS to illustrate usefulness and effectiveness of the proposed method.
Keywords: MathCAD; maximum flexural strength; firute element