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(長(zhǎng)沙理工大學(xué)土木與建筑學(xué)院，長(zhǎng)沙 410076)

［摘要］進(jìn)行了大比例尺蜂巢芯樓蓋與密肋樓蓋的模型試驗(yàn)對(duì)比研究。分別制作了尺寸、支承條件、混凝土強(qiáng)度等級(jí)及配筋都完全相同的兩種樓蓋試驗(yàn)?zāi)Ｐ停M(jìn)行破壞性加載試驗(yàn)。研究表明，加載過程中蜂巢芯內(nèi)模與混凝土粘結(jié)良好、樓蓋整體性良好，內(nèi)模的存在也在一定程度上改善了樓蓋的受力性能，使蜂巢芯樓蓋的剛度比密肋樓蓋的大，且彈性階段的內(nèi)力比密肋樓蓋的小，極限承載力也比密肋樓蓋的大，證明其受力性能優(yōu)越。由于蜂巢芯樓蓋施工簡(jiǎn)便，其在工程中有廣闊的應(yīng)用前景。

［關(guān)鍵詞］蜂巢芯樓蓋；密肋樓蓋；蜂巢芯內(nèi)模；鋼筋混凝土；試驗(yàn)；正交各向異性板

Contrast test study on reinforced concrete honeycombed-core floor and reinforced concrete multi-ribbed floor

Yang Weijun, Zhang Zhenhao, Mai Gaobo(College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China)

Abstract:Large-scale honeycombed-core floor and multi-ribbed floor models experiment contrast research had been done. The sizes, supporting condition, concrete strength gradation and distributed steel of honeycombed-core floor and multi-ribbed floor were all same. Then destructive load test was done. The experiment results show that the honeycombed-core modules and concrete are perfect bonding and the entirety of honeycombed-core floor is good. The honeycombed-core modules inside the floor can improve the structural behavior. The rigidity of honeycombed-core floor is bigger than that of multi-ribbed floor. The elastic internal force of honeycombed-core floor is smaller than that of multi-ribbed floor. And the bearing capacity of honeycombed-core floor is higher than that of multi-ribbed floor. It indicates the superiority of honeycombed-core floor. Because the honeycombed-core floor is easy to construct, it has good application foreground.

Keywords:honeycombed-core floor; multi-ribbed floor; honeycombed-core module; reinforced concrete; experiment; analogous orthotropic plate

*國(guó)家863計(jì)劃資助項(xiàng)目(2003AA332060)。