应用研究 2025年 第卷 第02期

DOI: 10 7672 / sgjs2025020091

异形 GRC 幕墙结构卡槽式连接施工技术及有限元分析

蒋雪城,张玉建,张金鹏,张玉良,刘本奎,郑 洪

作者简介:

蒋雪城,工程师,E⁃mail:wancanglan@ 163. com

作者单位:

中国建筑第八工程局有限公司,上海 200120

基金项目:

∗中国建筑第八工程局有限公司课题:临山跨河江南特色会议会展建筑建造关键技术研究(2021⁃2⁃16)

摘要:

针对宁波国际会议中心室外廊桥外侧幕墙特殊需求,提出了复杂异形 GRC 幕墙施工技术. 通过全装配式施工工艺、BIM 模型深化技术、外伸牛腿+U 形槽的连接形式、优化幕墙组件安装顺序等,确保了 GRC 幕墙高效、可靠安装. 同时,为解决传统异形 GRC 幕墙结构设计及施工方案中存在的现场装配率低、施工工序繁琐、施工效率低及施工质量不易控制等问题,提出一种新型异形 GRC 幕墙结构卡槽式连接设计. 该连接形式包括幕墙板背附骨架结构和外伸钢牛腿+U 形槽连接节点,具有构造简单、可实现全装配式安装等优点. 通过有限元分析可知,提出的卡槽式 GRC 幕墙节点具有足够连接强度.

English:

In view of the special requirement of the outdoor gallery bridge outer curtain wall for NingboInternational Conference Center, the construction technology of complex special⁃shaped GRC curtain wallis put forward. The efficient and reliable installation of GRC curtain wall is ensured by adopting fullyprefabricated construction technology, BIM model deepening technology, overhanging bracket + U⁃shaped groove connection form, and optimization of installation sequence of curtain wall components. Atthe same time, in order to solve the problems of low on⁃site assembly rate, tedious construction process,low construction efficiency and difficult control of construction quality in the design and constructionscheme of traditional special⁃shaped GRC curtain wall structure, a new type sloted connection of special⁃shaped GRC curtain wall structure is proposed. The connection form includes the curtain wall platecarrying skeleton structure and the extended steel corbel + U⁃shaped groove connection joint, which hasthe advantages of simple structure and full prefabricated installation and construction. The finite elementanalysis results show that the proposed slotted GRC curtain wall joint has sufficient connection strength.