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（1 貴州大學(xué)空間結(jié)構(gòu)研究中心， 貴陽 550003； 2 中石油華東設(shè)計(jì)院有限公司， 青島 266031）

［摘要］介紹了一種新型空間樓蓋結(jié)構(gòu)，該樓蓋的上、下層為H型鋼肋，中間由方形鋼管剪力鍵連接，上、下層型鋼肋與剪力鍵組成空間鋼網(wǎng)格，鋼網(wǎng)格結(jié)構(gòu)頂面現(xiàn)澆鋼筋混凝土樓板?？臻g鋼網(wǎng)格可靈活劃分成拼裝單元，拼裝單元在工廠預(yù)制，現(xiàn)場組裝。以某實(shí)際工程為例，介紹了樓蓋的設(shè)計(jì)方法和關(guān)鍵節(jié)點(diǎn)的構(gòu)造措施，并對(duì)樓蓋的靜力學(xué)特性進(jìn)行了分析。這種新型空間樓蓋受力合理，結(jié)構(gòu)安全可靠，可以為相關(guān)工程設(shè)計(jì)提供參考。

［關(guān)鍵詞］裝配整體式； 空間鋼網(wǎng)格； H型鋼； 結(jié)構(gòu)設(shè)計(jì)

中圖分類號(hào)：TU393-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)07-0009-05

Structural design of large-span monolithic precast H-shape steel spatial grid plate

Shang Hongkun1,2, Ma Kejian1, Wei Yanhui1, Dai Zhixu2, Liu Jingtao2

(1 Space Structrues Research Center(SSRC) of Guizhou University， Guiyang 550003, China; 2 CNPC East China Design Institute Co., Ltd., Qingdao 266031, China)

Abstract:A new type of spatial floor structure was introduced. The spatial steel grid structure was made up of top layer and lower layers of H-shaped steel ribs connected by steel square tubular shear keys. The steel ribs and shear keys formed spatial steel grid. There was cast-in-place reinforced concrete floor slab on top surface of steel grid structure. The spatial steel grid could be divided into assembled units flexibly to prefabricate in the factories and assemble on site. A practical project was taken as an example. The  design method of floor  and construction techniques of key joints were introduced and the statics characteristics of the floor were analyzed. The new type of spatial floor was under reasonable stress, and the structure was reliable and safe, which could provide reference for related engineering design.

Keywords:monolithic precast; spatial steel grid; H-shape steel; structural design

*貴州省協(xié)同創(chuàng)新中心建設(shè)項(xiàng)目（黔教合協(xié)同創(chuàng)新字［2013709］），貴州省科技合作計(jì)劃項(xiàng)目（黔科合LH字［2013］7468號(hào)）。

作者簡介：尚洪坤，博士研究生，高級(jí)工程師，Email：shanghongkun1981@sina.com。