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朱慶華，許秀珍，崔鴻超，鄭良知

（上海中巍結(jié)構(gòu)設(shè)計(jì)事務(wù)所有限公司， 上海 200135）

 

［摘要］通過(guò)渤海明珠觀景臺(tái)工程論述了巨型承重長(zhǎng)懸挑鋼結(jié)構(gòu)設(shè)計(jì)的具體實(shí)施方案。分別采用3種計(jì)算程序建立了空間三維模型，對(duì)結(jié)構(gòu)進(jìn)行了全面的受力性能分析，并由此得出結(jié)論：由于建筑造型的固有特征，無(wú)法調(diào)整結(jié)構(gòu)第1振型為平動(dòng)，因此在工程中采用相應(yīng)的抗震加強(qiáng)措施來(lái)保證結(jié)構(gòu)抗震的穩(wěn)定性能。給出了結(jié)構(gòu)具體的抗震構(gòu)造措施以及基礎(chǔ)承臺(tái)配重的設(shè)計(jì)方法和計(jì)算公式。

［關(guān)鍵詞］扭轉(zhuǎn)振型； 大懸挑結(jié)構(gòu)； 風(fēng)洞數(shù)值模擬； 環(huán)向水平支撐

中圖分類號(hào)：TU393.3      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)16-0025-05

 

Zhu Qinghua, Xu Xiuzhen, Cui Hongchao, Zheng Liangzhi

（China Majesty Structure Design Office Co., Ltd., Shanghai 200135, China）

 

Abstract: Structural design method of the super huge and large cantilevered steel structure of Bohai Pearl viewing platform was introduced. Three 3D space models were set up using different softwares to check and compare with each other. Mechanical behaviors of the structure were analyzed. Results show that the first vibration mode can′t be in translation state due to properties of the architecture, and reinforcement measures are strengthened to ensure the seismic stability of the structure. The details of seismic design are introduced as well as the design method of the counter-weights of foundation.

Keywords: torsional vibration mode; large cantilevered structure; wind tunnel numerical simulation; ring lateral bracing

作者簡(jiǎn)介：朱慶華，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：qinghuazhu214@163.com。