CN2747301Y - 翼缘弯折的工形截面构件 - Google Patents
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Abstract
本实用新型涉及一种广泛应用于门式刚架结构及屋面系统的檩条构件中的翼缘弯折的工形截面构件,属于钢结构工程领域。其特征在于,所述工形截面构件由弯折翼缘板1及腹板2组成,所述弯折翼缘板1是由“一”字形的冷轧板或热轧板冷弯形成的“C”形截面,所述腹板2是普通的等宽度或变宽度的冷轧板或热轧板,弯折翼缘板1与腹板2由埋弧焊或高频焊用角焊缝3连接。这种截面形式的构件,由于弱轴两侧弯折部分的存在,加大绕弱轴的惯性矩,既可以有效的防止面外屈曲,也可以通过调整腹板的高度提高面内的刚度和承载能力,它是一种高效型材,有广泛的市场应用前景。
Description
技术领域
本实用新型涉及一种广泛应用于门式刚架结构及屋面系统的檩条构件中的翼缘弯折的工形截面构件,属于钢结构工程领域。
背景技术
三块板焊接形成的普通工形构件由于其制作及连接简单而广泛应用在门式刚架结构中;但是,由于翼缘板具有“一”截面,易于发生局部屈曲,设计时常常通过限值翼缘板的宽厚比防止其局部屈曲,因而导致板的厚度较大,用钢量增高。为了提高截面的经济性,提出了一种新的构件截面形式,即翼缘弯折的工形截面构件,以提高截面的局部屈曲荷载,在不降低截面承载力的条件下达到节省材料和提高构件效率的目的。
实用新型内容
本实用新型的目的在于提供一种可提高截面的局部屈曲荷载,经济性优越的翼缘弯折的工形截面构件。这种截面型式的构件可以应用在轻型房屋门式刚架结构中,也可广泛用作屋面系统的檩条构件,特别是跨度超过12米的檩条构件;
本实用新型提供的翼缘弯折的工形截面构件,其特征在于,所述工形截面构件由弯折翼缘板1及腹板2组成,所述弯折翼缘板1是由“一”字形的冷轧板或热轧板冷弯形成的“C”形截面,所述腹板2是普通的等宽度或变宽度的冷轧板或热轧板,弯折翼缘板1与腹板2由埋弧焊或高频焊用角焊缝3连接。
在上述的翼缘弯折的工形截面构件中,所述弯折翼缘板1由平板和弯折部分组成,弯折宽度与平板宽度的比值在0.05-0.5之间变化。
在上述的翼缘弯折的工形截面构件中,所述工形截面为等截面构件或变截面构件。
由于本实用新型的翼缘弯折的工形截面构件,其弯折翼缘由平板和弯折两部分组成;平板部分受两侧弯折部分的强大约束,其局部屈曲荷载有较大的提高;由于弯折强大的约束作用,平板部分能发挥较大的局部屈曲后强度;无论是作为轴心受压构件、偏心受压构件,还是受弯构件,其截面的局部屈曲荷载和构件的稳定承载力都将明显地提高。
附图说明
图1是翼缘加强的工形截面构件示意图。
具体实施方法
在图1中,1-弯折的翼缘板,2-腹板,3-角焊缝。
通过弯折(冷成型)“一”字型的平板形成“C”形截面,即弯折的翼缘板,然后与平腹板通过埋弧焊或高频焊用角焊缝连接,便形成翼缘弯折的工形构件或檩条,见图1。
如腹板是等宽度的,则形成的翼缘弯折的工形构件是等截面的,可用作门式刚架的梁柱构件或屋面檩条;如腹板是变宽度的,则形成的翼缘弯折的工形构件是变截面的,可一般用作门式刚架的梁柱构件。
腹板及弯折翼缘板的尺寸由设计确定,其翼缘弯折宽度与翼缘平板部分的宽度之比在0.05-0.5范围之内,视轴心受压、偏心受压及纯弯曲而定;通过截面和构件的稳定性分析,决定最佳的翼缘弯折与平板宽度的比值,保证翼缘弯折部分给平板部分提供最大的约束作用,以延迟翼缘板过早的局部屈曲,以提高构件的稳定承载力。
本实用新型的这种截面形式的构件可以应用在轻型房屋门式刚架结构的梁柱构件中,能达到显著节约钢材地目的,也可广泛用作屋面系统的檩条构件,特别是跨度超过12米的檩条构件;这种截面形式的构件,由于弱轴两侧弯折部分的存在,加大绕弱轴的惯性矩,既可以有效的防止面外屈曲,也可以通过调整腹板的高度提高面内的刚度和承载能力,它是一种高效型材,有广泛的市场应用前景。
Claims (3)
1、翼缘弯折的工形截面构件,其特征在于,所述工形截面构件由弯折翼缘板(1)及腹板(2)组成,所述弯折翼缘板(1)是由“一”字形的冷轧板或热轧板冷弯形成的“C”形截面,所述腹板(2)是普通等宽度的或变宽度的冷轧板或热轧板,弯折翼缘板(1)与腹板(2)通过埋弧焊或高频焊用角焊缝(3)连接。
2.按照权利要求1所述的翼缘弯折的工形截面构件,其特征在于,所述弯折翼缘板(1)由平板和弯折部分组成。
3、按照权利要求1所述的翼缘弯折的工形截面构件,其特征在于,所述工形截面为等截面构件或变截面构件。
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-
2005
- 2005-11-23 US US11/285,398 patent/US7386093B2/en active Active
- 2005-11-24 DE DE102005056385.6A patent/DE102005056385B4/de not_active Expired - Fee Related
- 2005-11-25 GB GB0524058A patent/GB2420618B/en not_active Expired - Fee Related
- 2005-11-25 WO PCT/CN2005/001996 patent/WO2006056132A1/zh active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101270604B (zh) * | 2007-04-11 | 2011-06-01 | 张海堂 | 新断面型钢的制造方法及用途 |
CN102992190A (zh) * | 2012-10-24 | 2013-03-27 | 中船华南船舶机械有限公司 | 起重机悬臂梁 |
CN106193448A (zh) * | 2016-09-28 | 2016-12-07 | 郑州九冶三维化工机械有限公司 | 铝型材集成房屋顶梁 |
CN106193448B (zh) * | 2016-09-28 | 2018-07-31 | 郑州九冶三维化工机械有限公司 | 铝型材集成房屋顶梁 |
Also Published As
Publication number | Publication date |
---|---|
WO2006056132A1 (fr) | 2006-06-01 |
CN1779443B (zh) | 2010-09-15 |
GB0524058D0 (en) | 2006-01-04 |
GB2420618B (en) | 2010-03-17 |
GB2420618A (en) | 2006-05-31 |
DE102005056385A1 (de) | 2006-06-08 |
US20060115044A1 (en) | 2006-06-01 |
DE102005056385B4 (de) | 2014-01-23 |
US7386093B2 (en) | 2008-06-10 |
CN1779443A (zh) | 2006-05-31 |
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