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（江蘇省鹽城市建筑設(shè)計(jì)研究院有限公司，鹽城 224002）
［摘要］通過對某中學(xué)學(xué)生食堂的加層改造設(shè)計(jì)，分析了此類工程設(shè)計(jì)中遇到的難點(diǎn)。針對原結(jié)構(gòu)體系不明確、層高超標(biāo)的問題，分別采用新增防震縫、設(shè)鋼筋網(wǎng)夾板墻的方法進(jìn)行加固。還采用框剪結(jié)構(gòu)的方案減小梁柱的加固工作量，用靜載試驗(yàn)來提高設(shè)計(jì)單樁承載力、減少補(bǔ)樁。
［關(guān)鍵詞］加層；改造；磚混結(jié)構(gòu)；框架結(jié)構(gòu)；框-剪結(jié)構(gòu)；鋼筋網(wǎng)夾板墻
Some technical problems in adding stories design of a middle school mess hallJi Weibing, Li Chenzhong (Yancheng Architecture Design & Research Institute Co., Ltd., Yancheng 224002, China)
Abstract:A story would be added on a mess hall in a middle school. The difficulties of the design include that the existent structural system is not clear, and the height of the story is over limit. The measures of setting seismic joint and adding bar-mat reinforcement cavity wall are adopted for the reinforcing and rebuilding. The amount of strengthened beams and columns is reduced by changing the structural system to the frameshear wall structure. The amount of added piles is reduced and the pile′s loading capacity is increased by doing the static loading test.
Keywords:adding stories; reconstruct; brick-concrete structure; frame structure; frame shear wall structure; bar-mat reinforcement cavity wall.
作者簡介：嵇蔚冰，研究員級高級工程師，Email:jwb0608@163.com。