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(1 浙大城市學(xué)院土木工程系, 杭州 310015; 2 浙江省建筑設(shè)計(jì)研究院, 杭州 310006;3 浙江大學(xué)空間結(jié)構(gòu)研究中心, 杭州 310058)
摘要: 鋼管混凝土斜柱體系內(nèi)部澆灌混凝土的密實(shí)度質(zhì)量是保證整體結(jié)構(gòu)承載性能的重要因素. 以 X 形平面斜柱節(jié)點(diǎn)、K 形空間斜柱節(jié)點(diǎn)為例,建立鋼管混凝土斜柱的足尺試驗(yàn)?zāi)Ｐ?通過超聲 CT 技術(shù)檢測其內(nèi)部澆灌混凝土的密實(shí)度,以獲得合理有效的澆灌工藝并應(yīng)用于工程;進(jìn)而針對(duì)斜柱網(wǎng)格體系的混凝土密實(shí)度檢測布置進(jìn)行了研究. 結(jié)果表明:試驗(yàn)?zāi)Ｐ弯摪遢^厚時(shí),采用 CT 成像檢測可獲得精確結(jié)果;試驗(yàn)?zāi)Ｐ蜐补喙に嚌M足密實(shí)度要求時(shí),實(shí)際施工應(yīng)采用相同工藝以保證質(zhì)量;對(duì)于混凝土密實(shí)度不足之處,可采用鉆孔壓漿法補(bǔ)強(qiáng),而后補(bǔ)焊封回;鋼管混凝土斜柱內(nèi)部混凝土密實(shí)度檢測布置包括斜柱構(gòu)件檢測數(shù)量、橫截面檢測位置兩方面.
關(guān)鍵詞: 鋼管混凝土斜柱; 足尺模型試驗(yàn); CT 成像檢測; 混凝土密實(shí)度; 澆灌工藝; 檢測布置方案
中圖分類號(hào):TU355,TU973 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)06-0124-07
DOI:10. 19701 / j. jzjg. 20201157
Experimental study on solid model and detection of the internal pouring concrete for the inclined column grid system
WANG Zhen1,2, YANG Xuelin2, ZHAO Yang1,3, WU Xiaoping2, QU Haochuan2
(1 Department of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China; 2 Zhejiang ProvinceInstitute of Architectural Design and Research, Hangzhou 310006, China; 3 Space Structures Research Center,Zhejiang University, Hangzhou 310058, China)
Abstract: The compactness quality of the internal pouring concrete for the concrete-filled steel tube inclined column systemis an important factor to ensure the bearing capacity of the whole structure. Taking X-type plane inclined column joint andK-type space inclined column joint as examples, a full-scale test model for the concrete-filled steel tube inclined columnwas established. Ultrasonic CT technology was used to detect the compactness of the internal pouring concrete, so as toobtain a reasonable and effective pouring technology and apply it to engineering. Furthermore, the detection arrangement ofthe concrete compactness for the inclined column grid system was studied. The results show that: when the steel plate of thetest model is relatively thick, the CT imaging detection can be used to obtain accurate results; when the pouring techniqueof the test model meets the requirement of compactness, the same technique should be adopted in the actual construction toensure the quality; for the position of insuffient concrete compactness, the drilling grouting method can be used to strength,and then repair welding sealing; the detection arrangement of the internal pouring concrete compactness for concrete-filledsteel tube inclined column includes two aspects: the detection quantity of the inclined column components and the detectionposition of the cross sections.
Keywords:concrete-filled steel tube inclined column; full-scale model test; CT imaging detection; concrete compactness;pouring technique; detection arragement scheme
∗浙江省基礎(chǔ)公益研究計(jì)劃項(xiàng)目( LGG22E080005),浙江省教育廳科研項(xiàng)目(Y202146072),浙江省水利廳重點(diǎn)科技項(xiàng)目(RB1909).
第一作者:王震,博士,副教授,主要從事超高層、大跨空間和復(fù)雜鋼結(jié)構(gòu)的設(shè)計(jì)和科研工作,Email:wzjggc@ 163. com.
[引用本文] 王震,楊學(xué)林,趙陽,等. 斜柱網(wǎng)格體系內(nèi)部混凝土澆灌實(shí)體模型及檢測試驗(yàn)研究[ J]. 建筑結(jié)構(gòu),2023,53(6):124-130. WANG Zhen,YANG Xuelin,ZHAO Yang,et al. Experimental study on solid model and detectionof the internal pouring concrete for the inclined column grid system[J]. Building Structure,2023,53(6):124-130.
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