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Abstract
¡¡¡¡The design to the industrial factory building of steel construction adopts portal frame structure: Each span is 18 m and consists of 10 tons ,bridge type crane of A3 grade.The design is mainly according to the criterion of "CODE ROR DESIGN OF STEEL STRUCTURES" £¨GB50017-2003£©and "TECHNICAL SPECIFICATION FOR STEEL STRUCTURE OF LIGHT-WEIGHT BUILDINGS WITH GABLE FRAMES"£¨CECS102:2002£©etc. After decided the plane arrangement of frame,representative value of load is first caculated. The internal force is analyzed and combined in PKPM so as to choose the section of beam and column and neglectes the factor that earthquake is on the influence of loading etc. Based on these analysis, the section of beam and columniation is decided. Then the vibrate cycle is calculated by the peak-displacement method for structural internal force £¨bending moment,shearing force and axial force £©¡£ Next, checking stability of the plane structure. The steel beam and column employs Q235 carbon structural steel. Connection bolts are high strength of friction type with behavioral grade 8.8 and 10.9. Rod for manual welding usually adopts E43. And during calculate the internal force , a kind of most unfavorable association have been only selected,fetch the safest result to calculate. In addition, foundation of the ground has been caculated.Because the geological condition of the place of factory building is better, the design plan is adopted on the inpidual footing under the post. Having finished the roof beam , internal force and the section of members have been caculated . Finally draw the building and structure.
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¡¡¡¡¹¤Òµ³§·¿Éè¼ÆÖÐÖùÍø²¼ÖÃÍùÍù²ÉÓÃÄ£Êý»¯Öù¾à£¬¶ø¶ÔÃÅʽ¸Õ¼ÜÇáÐ͸ֽṹ¹¤Òµ³§·¿À´Ëµ£¬²»ºÏÀíµÄÄ£ÊýÖù¾à»áʹÓøÖÁ¿Ö¸±ê¹ý´ó¡£±¾Îĸù¾Ý±ÊÕß´ÓÊµļ¸¸öʵ¼Ê¹¤³Ì£¬¶ÔÇáÐ͸ֽṹ¹¤Òµ³§·¿µÄ×îÓÅÖù¾àÎÊÌâ´ÓÉè¼ÆÓøÖÁ¿µÄ½Ç¶È×÷Á˽ÏÏêϸµÄÑо¿ÌÖÂÛ¡£
¡¡¡¡¹Ø¼ü×Ö£ºÇáÐ͸ֽṹ£¬ÃÅʽ¸Õ¼Ü£¬Öù¾à
¡¡¡¡The Study on Optimumal Column Spacing of the Portal Frame Light Steel Sructure of Industrial Building.
¡¡¡¡Wang Yuantsing Wang Chunguang
¡¡¡¡£¨Department of Civil Engineering, Tsinghua University£©
¡¡¡¡Abstract: Spacing module is often used in the layout of column system of industrial building. But in the portal frame light steel structure industrial building, unsuitable module can cause too large design steel cost. This paper introduces some problem and cooresponding solutions in the several practical projects the author engaged. The optimumal column spacing in the light steel structure industrial building is discussed
¡¡¡¡in detial from the point of design steel cost.
¡¡¡¡KeyWords: light steel structure; portal frame; column spacing
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