摘要
這篇文章主要講了帶有半剛性連接和半剛性柱基礎(chǔ)的鋼框架的分析和設(shè)計方法。主要分析了梁柱連接的非線性性能和梁柱構(gòu)件的P -⊿作用。Frye和Morris多項式模型是用來模擬半剛性連接的。構(gòu)件是根據(jù)美國研究所的鋼結(jié)構(gòu)建筑（AISC）容許應(yīng)力設(shè)計（ ASD ）的設(shè)計規(guī)范來設(shè)計的。設(shè)計過程是互動式的，并給了設(shè)計師選擇的機(jī)會，出于經(jīng)濟(jì)和現(xiàn)實的原因去改變構(gòu)件的橫截面和連接參數(shù)，并且設(shè)計師與電腦在不斷的交流。半剛性柱基礎(chǔ)模型也產(chǎn)生了自重較輕的框架。這也表明了連接剛度的改變，可能會得到更經(jīng)濟(jì)的解決方案，并改變了搖晃的框架 。
關(guān)鍵詞
容許應(yīng)力設(shè)計;非線性分析;半剛性連接;鋼設(shè)計;無支撐框架;半剛性柱基礎(chǔ)
1 引言
在大多數(shù)鋼框架計的設(shè)中，梁柱的連接被假定要么完全鉸接要么完全剛接。這項簡化導(dǎo)致了對框架性能的不正確估計。事實上，梁柱的連接間于兩個精確的假設(shè)，并且擁有一定合理的剛度。全面的測試解釋了這些連接的真實性能。螺栓和焊接連接的梁柱所轉(zhuǎn)動的角度，取決于適用彎矩。這些連接的變形已對框架的穩(wěn)定性產(chǎn)生了負(fù)面影響，因為它增加了框架的側(cè)移并且導(dǎo)致了連接在節(jié)點上的構(gòu)件的有效剛度的減少?？蚣艿膫?cè)移的增加將成倍增加梁柱構(gòu)件二階性（ P - ⊿ ）的影響，并會影響框架的整體穩(wěn)定

ABSTRACT
This article presents an analysis and design method for steel frames with semi-rigid connections and semi-rigid column bases. The analysis takes into account both the non-linear behaviour of beam-to-column connections and P-⊿effects of beam-column members. The Frye and Morris polynomial model is used for modelling of semi-rigid connections. The members are designed according to the specifications of American Institute of Steel Construction (AISC) Allowable Stress Design (ASD). The design process is interactive, and gives choices to the designer, to change member cross-sections and connection parameters for economical and practical reasons, interacting with computer. The semi-rigid column base modelling also results in lighter frames. It is also shown that changes in the stiffness of the connections may result in economical solutions and alteration in the sways of the frames.
KEYWORDS
Allowable stress design; Non-linear analysis; Semi-rigid connections; Steel design; Unbraced frame;Semirigid column base