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超長(zhǎng)鋼管混凝土格構(gòu)柱極限承載力試驗(yàn)研究
李 莉1，趙宏康1，舒贛平2
摘 要

 

（1蘇州設(shè)計(jì)研究院股份有限公司，蘇州 215021; 2東南大學(xué)，南京 210096）
 
[摘要] 鋼管混凝土格構(gòu)柱常被用于重載大跨廠房柱、設(shè)備構(gòu)架柱等，本文對(duì)超長(zhǎng)鋼管混凝土四肢格構(gòu)柱進(jìn)行偏心受壓試驗(yàn)研究，得到了四肢鋼管混凝土格構(gòu)柱的偏壓極限承載力和構(gòu)件的受力全過(guò)程曲線，驗(yàn)證了超長(zhǎng)鋼管混凝土格構(gòu)柱的優(yōu)良性能，對(duì)鋼管混凝土長(zhǎng)柱的最終失效模式做出了分析和解釋,對(duì)試驗(yàn)過(guò)程中柱肢鋼管的縱向應(yīng)變、環(huán)向應(yīng)變和部分綴件的縱向應(yīng)變進(jìn)行量測(cè)，為分析加載過(guò)程中構(gòu)件各部位的受力情況提供數(shù)據(jù)。同時(shí)結(jié)合試驗(yàn)現(xiàn)象和測(cè)量的相關(guān)數(shù)據(jù)，為鋼管混凝土格構(gòu)長(zhǎng)柱偏壓性能的理論分析提供試驗(yàn)基礎(chǔ)。
[關(guān)鍵詞]鋼管混凝土;格構(gòu)柱;偏壓;極限承載力
中圖分類(lèi)號(hào)： TU317      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)S1-0488-05
 
Seismic design of especially irregular tall building
Li Li1，Zhao Hongkang1，Shu Ganping 2
（1 Suzhou Institute of Architectural Design Co.,Ltd.，Suzhou 215021, China; 2 Southeast University, Nanjing 210096, China）
 
Abstract: Concrete filled steel tubularlaced columns is often used in heavy large-span industrial plant and so on. Test of  super long concrete filled steel tubular column was carried out to study the bearing capacity of the column and the whole process curve of its stress, and to verify the excellent performance of super-long concrete filled steel tube lattice column, then to analysis and explain the ultimate failure mode of the column. Currently there is no unified standard for design of such high conctrete filled steel tubularlaced column, so calculation should be verified by testing its carrying capacity. This paper give results of load-deflection curves, load - compression curves for stress analysis by the test. With the related data from test and measurement, analysis and interpretation of concrete-filled steel tube column’s ultimate failure mode are presented, which could provide experimental foundation of such long columns.
Keywords: concrete filled steel;tubularlaced column; eccentricity pressure; bearing capacity
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