- 摘 要
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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）
［摘要］近30年來,全國范圍內(nèi)的建筑施工大多采取設(shè)置后澆帶的方法來解決建筑物的溫度、收縮和因沉降導(dǎo)致的混凝土裂縫問題，但后澆帶從進(jìn)度、質(zhì)量、環(huán)保、安全、管理等方面給施工企業(yè)帶來很大困難。超長大體積混凝土結(jié)構(gòu)跳倉施工法用施工縫取代后澆帶，其原理為“抗、放結(jié)合，先放后抗”，工藝十分簡單，施工方便，盡管僅僅是一條“帶”的變革，卻具有顯著的經(jīng)濟(jì)效益和社會(huì)效益。跳倉法需要結(jié)構(gòu)設(shè)計(jì)師的密切配合，尤其取消沉降后澆帶是其中的關(guān)鍵問題。結(jié)合工程實(shí)例，論述跳倉法工程的結(jié)構(gòu)設(shè)計(jì)要點(diǎn)，可為相關(guān)工程提供參考。
［關(guān)鍵詞］超長混凝土結(jié)構(gòu)； 大體積混凝土； 跳倉法
中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)18-0120-06
Key problems in engineering design of alternative bay construction method for super-long large volume concrete structures
Zhou Sun， Li Guosheng， Wang Xuesheng， Li Pei， Zhang Yuwei， Cai Chunjie， Han Lingxiang， Wang Xi
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:In the past 30 years, the post-pouring belts have been adopted to solve the problems of concrete crack caused by temperature, shrinkage and settlement of buildings across China. However, the post-pouring belts have brought great difficulties to construction in speed, quality, environmental protection, safety and management. The alternative bay construction method replaces the post-pouring belt method with the construction joint, and its principle is "combination of resistance and release, and release before resistance". The process is very simple and construction is convenient. Although it is only a “belt” change, it has significant economic and social benefits. It needs the close cooperation of the structural designers in the alternative bay construction. Especially, the elimination of post-settlement cast zone is the key problem. Combining with engineering examples, the main points of structural design of alternative bay construction method were discussed, to provide reference for related projects.
Keywords:super-long concrete structure; mass concrete; alternative bay construction method
作者簡介：周筍，碩士，教授級(jí)高級(jí)工程師，研究生導(dǎo)師，Email: zhousun@biad.com.cn。
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