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李卓東¹，曹長(zhǎng)志²，李兆林²
(1 新大陸建筑設(shè)計(jì)有限公司，沈陽(yáng)110003; 2 遼寧天維紡織研究建筑設(shè)計(jì)有限公司，沈陽(yáng)110015)

[摘要] 介紹一種混凝土結(jié)構(gòu)增設(shè)支點(diǎn)加固的新方法。其主要特點(diǎn)是通過(guò)旋轉(zhuǎn)柱腳螺栓頂升鋼支柱，使樓蓋達(dá)到卸荷、減小跨度、恢復(fù)變形的目的。增設(shè)支點(diǎn)的鋼支柱既作為結(jié)構(gòu)構(gòu)件，又當(dāng)作項(xiàng)升用具。該方法用于某辦公樓屋蓋的加固工程，取得很好的經(jīng)濟(jì)技術(shù)效果。
[關(guān)鍵詞] 柱腳螺栓；項(xiàng)升；鋼支柱

    Reinforced concrete roof strengthening technology through lifting-up steel column by bolts
    Li Zhuodong¹, Cao Changzhi², Li haolin²
    (1 New World Architecture Design Co., Ltd., Shenyang 110003, China; 2 Liaoning Tianwei Textile Research & Architectural Design Co., Ltd., Shenyang 110015, China)

Abstract: A new design method by adding new bearing steel column with footing bolts at bottom to strengthen existing concrete structure was introduced. The main characteristic ofthis method is to turn the footing bolt to lift up steel column to achieve the goals of reducing span, unloading and recovering deformation of roof. The bearing steel column is not only as a structure component, but also as a lifting-up appliance. This method has been used to strengthen a roof of an office building and generates good economic and technical effects.
Keywords: footing bolt; lifting-up; bearing steel column