- 摘 要
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孫澄潮，劉剛君
(泛華建設(shè)集團(tuán)有限公司，北京100082)[摘要] 結(jié)構(gòu)的豎向剛度是考慮基礎(chǔ)和上部結(jié)構(gòu)共同工作的重要參數(shù)。考慮上部結(jié)構(gòu)剛度對于減小基礎(chǔ)的內(nèi)力和沉降差以及調(diào)整上部結(jié)構(gòu)的內(nèi)力是不可忽視的?？蚣芙Y(jié)構(gòu)的豎向剛度是依靠框架梁的抗剪剛度提供的，并隨著柱的軸變剛度增加而增強(qiáng)。推導(dǎo)當(dāng)?shù)鼗l(fā)生非線性變形時(shí)，上部框架梁兩端的相對豎向變形隨高度的衰減系數(shù) Ψ的計(jì)算公式，從而得出框架的豎向剛度及框架結(jié)構(gòu)承受的整體彎矩。對一般規(guī)則框架制成 Ψ值表，可供工程設(shè)計(jì)應(yīng)用。
[關(guān)鍵詞] 框架結(jié)構(gòu)；豎向剛度；梁端相對變形；衰減系數(shù)Calculation of framed vertical rigidity when the subgrade deforms
Sun Chengchao, Liu Gangjun
( Pan-China Construction Group Co., Ltd., Beijing 100082, China)Abstract: The vertical rigidity of structure is an important parameter for common work of foundation and upper structure. It can not to be ignored for consideration the structure rigidity of upper structure, because it is relative to reduce internal force and disparity in settlement of foundation and adjust the internal force of upper structure. The vertical rigidity of frame structure is provided with shear rigidity of frame beam and it's strengthened with the increase of compression rigidity of the column. The formula of coefficient of attenuation along with height of relatively deflection at end of beam on upper frame is derived, when subgrade occur nonlinear deformation. Thus it is abstained the vertical rigidity of frame and the bearing whole moment of frame structure. It is compiled table of volume Ψ for general regular frame. It can be applied in engineering design.
Keywords: frame structure; vertical rigidity; relatively deflection at end ofbeam; coefficient of attenuation
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