- 摘 要
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（1 同濟大學(xué)土木工程學(xué)院， 上海 200092； 2 中國電力工程顧問集團中南電力設(shè)計院有限公司， 武漢 430071）
［摘要］以國外某200m高鋼筋混凝土結(jié)構(gòu)冷卻塔為設(shè)計原型，通過有限元方法對雙曲線拋物面鋼結(jié)構(gòu)冷卻塔尺寸參數(shù)進行優(yōu)選。建立16組不同網(wǎng)格尺寸及網(wǎng)殼厚度的模型，基于國內(nèi)常見的環(huán)境條件進行內(nèi)力計算及結(jié)構(gòu)優(yōu)選以計算各模型相應(yīng)用鋼量。結(jié)果表明，當(dāng)選定網(wǎng)格尺寸為4m、網(wǎng)殼厚度為5m時，雙曲線拋物面鋼結(jié)構(gòu)冷卻塔用鋼量最小，且穩(wěn)定性也滿足《空間網(wǎng)格結(jié)構(gòu)技術(shù)規(guī)程》（JGJ 7—2010）要求，但不同網(wǎng)格尺寸及網(wǎng)殼厚度對應(yīng)結(jié)構(gòu)用鋼量及穩(wěn)定性差異不大。
［關(guān)鍵詞］鋼結(jié)構(gòu)冷卻塔； 網(wǎng)格尺寸； 網(wǎng)殼厚度； 優(yōu)選
中圖分類號：TU391文獻標識碼：A文章編號：1002-848X(2016)14-0097-03
Optimization research on size parameters of hyperbolic parabolic steel structure cooling tower
Xu Chao1, Zhang Qilin1, Du Jing2, Zhang Dong2
(1 College of Civil Engineering, Tongji University, Shanghai 200092, China; 2 Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group, Wuhan 430071, China)
Abstract:Taking a 200m high steel reinforced concrete structure cooling tower in the foreign country as the design prototype, the size parameters of hyperbolic parabolic steel structure cooling tower were optimized by using the finite element method. Sixteen groups of models with different mesh sizes or shell thicknesses were established to carry out internal force calculation and structural optimization based on the domestic common environmental conditions, in order to calculate corresponding steel amounts of the models. Results show that the hyperbolic parabolic steel structure cooling tower has the minimum steel amount with selected mesh size of 4m and shell thickness of 5m. The stability also fulfills the requirements of Technical specification for spatial grid structure (JGJ 7—2010). However, the differences in structural steel amount and stability related to different mesh sizes and shell thicknesses are small.
Keywords:steel structure cooling tower; mesh size; shell thickness; optimization
*上海市科委創(chuàng)新行動計劃“上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心（籌）”（14DZ2252300）。
作者簡介：徐超，碩士，Email：719215791@qq.com。
