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王 偉，蘇小卒
(同濟大學(xué)建筑工程系，上海200092)[摘要] 溫度應(yīng)力是超長混凝土結(jié)構(gòu)面臨的挑戰(zhàn)，本文針對上海鐵路南站下部混凝土結(jié)構(gòu)的溫度應(yīng)力問題進行了探討，通過自編Fortran程序?qū)崿F(xiàn)了考慮截面配筋及開裂的影響，并與ANSYS的有機結(jié)合。分析結(jié)果表明，在溫度荷載作用下，環(huán)形結(jié)構(gòu)的內(nèi)圈環(huán)梁受力較為復(fù)雜；樓板溫度荷載對結(jié)構(gòu)溫度應(yīng)力有十分重要的影響，設(shè)計中樓板承受的溫度荷載應(yīng)給予充分的考慮。
[關(guān)鍵詞] 超長結(jié)構(gòu)；溫度應(yīng)力Analysis on Temperature Stress of the Shanghai South Railway Station
Wang Wei, Su Xiaozu
( Department of Building Engineering, Tongji University, Shanghai 200092, China)Abstract: Temperature stress is a challenge for ultralong concrete structures. The temperature stress in the concrete substructure of Shanghai railway station was studied by a FORTRAN program, which took the effects of reinforcing and cracking into consideration and could be combined with ANSYS tightly. The results indicated that the behavior of inner ring girders was more complex than outer ones under temperature load. The effect of temperature loads in the slab on temperature stress in structures is great. The enough attention should be paid to the temperature loads in the slab in design.
Keywords: ultralong structure; temperature stress
