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    萬(wàn)墨林  韓繼云  袁  勛  張永鈞    （中國(guó)建筑科學(xué)研究院北京100013）

    湯永平    （新興集團(tuán)建筑開發(fā)總公司  北京 100039）

[提要]  介紹了一舞臺(tái)增層改造工程的設(shè)計(jì)要點(diǎn)：不增設(shè)任何豎向支撐結(jié)構(gòu)，僅加固原有結(jié)構(gòu)，避免了新舊結(jié)構(gòu)的差異沉降；采用了國(guó)際上較為先進(jìn)的后錨固技術(shù)，保證了增層結(jié)構(gòu)與原有結(jié)構(gòu)的可靠連接和有效傳力。
[關(guān)鍵詞]  房屋增層 后錨固技術(shù) 靜壓樁 外包鋼加固

The main points of design for a stage reconstruction which six new floors are enlarged in side hall are developed. The old structure is reinforced without any vertical bracing. The design avoids differential settlement between new and old structure. The more advanced post-anchorage technique in the world is used in the project, and the reliable connection and effective carry-over load between new and old structure are quaranted.
Keywords:  stage; recontruction; post-anchorage technique;strengthening; steel plate; static pressure pile