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A platform for research: civil engineering, architecture and urbanism
Steel beam web opening rectangular hole closed reinforcing structure reinforced by angle steel
The invention provides a steel beam web opening rectangular hole closed reinforcing structure reinforced through angle steel. The steel beam web opening rectangular hole closed reinforcing structure comprises a steel beam and longitudinal angle steel stiffening ribs. The steel beam is composed of an upper flange, a lower flange and a web, a rectangular hole is formed in the middle of the web, and longitudinal angle steel stiffening ribs are arranged above and below the rectangular hole respectively. And when the height-thickness ratio of the web is larger than # imgabs0 #, transverse stiffening ribs are arranged on the left side and the right side of the rectangular hole, and fy is the yield strength of the steel. Longitudinal angle steel stiffening ribs are arranged on the upper and lower edges of the opening and extend out of the left and right edges of the opening. And the limb tips of the longitudinal angle steel stiffening ribs are respectively welded with the flanges and the web plate, so that a closed section is formed. By means of the closed section formed by the flanges, the web and the longitudinal angle steel stiffening ribs, the bending resistance and shear bearing capacity of the perforated beam section of the web can be effectively improved, and meanwhile the stable bearing capacity of the lower flange of the steel beam in the hogging moment area can be improved. The reinforcing structure can be prefabricated in a factory, and is convenient to process and install and excellent in performance.
本发明提供一种采用角钢加强的钢梁腹板开矩形孔闭口补强构造，包括钢梁和纵向角钢加劲肋；钢梁由上翼缘、下翼缘和腹板组成，其中腹板中部开设有矩形孔洞，矩形孔洞上下分别设有纵向角钢加劲肋；当腹板的高厚比大于#imgabs0#时，在矩形洞口左右两侧设置横向加劲肋，其中fy为钢材屈服强度。在开孔上下边缘设有纵向角钢加劲肋，并延长至开孔左右边缘外。纵向角钢加劲肋的肢尖分别与翼缘和腹板焊接，从而形成闭口截面。本发明通过翼缘、腹板和纵向角钢加劲肋组成的闭口截面，不仅可以有效提高腹板开孔梁段的抗弯和抗剪承载力，同时还能提高负弯矩区钢梁下翼缘的稳定承载力。该补强构造可通过工厂预制，加工安装方便，性能优异。
Steel beam web opening rectangular hole closed reinforcing structure reinforced by angle steel
The invention provides a steel beam web opening rectangular hole closed reinforcing structure reinforced through angle steel. The steel beam web opening rectangular hole closed reinforcing structure comprises a steel beam and longitudinal angle steel stiffening ribs. The steel beam is composed of an upper flange, a lower flange and a web, a rectangular hole is formed in the middle of the web, and longitudinal angle steel stiffening ribs are arranged above and below the rectangular hole respectively. And when the height-thickness ratio of the web is larger than # imgabs0 #, transverse stiffening ribs are arranged on the left side and the right side of the rectangular hole, and fy is the yield strength of the steel. Longitudinal angle steel stiffening ribs are arranged on the upper and lower edges of the opening and extend out of the left and right edges of the opening. And the limb tips of the longitudinal angle steel stiffening ribs are respectively welded with the flanges and the web plate, so that a closed section is formed. By means of the closed section formed by the flanges, the web and the longitudinal angle steel stiffening ribs, the bending resistance and shear bearing capacity of the perforated beam section of the web can be effectively improved, and meanwhile the stable bearing capacity of the lower flange of the steel beam in the hogging moment area can be improved. The reinforcing structure can be prefabricated in a factory, and is convenient to process and install and excellent in performance.
本发明提供一种采用角钢加强的钢梁腹板开矩形孔闭口补强构造，包括钢梁和纵向角钢加劲肋；钢梁由上翼缘、下翼缘和腹板组成，其中腹板中部开设有矩形孔洞，矩形孔洞上下分别设有纵向角钢加劲肋；当腹板的高厚比大于#imgabs0#时，在矩形洞口左右两侧设置横向加劲肋，其中fy为钢材屈服强度。在开孔上下边缘设有纵向角钢加劲肋，并延长至开孔左右边缘外。纵向角钢加劲肋的肢尖分别与翼缘和腹板焊接，从而形成闭口截面。本发明通过翼缘、腹板和纵向角钢加劲肋组成的闭口截面，不仅可以有效提高腹板开孔梁段的抗弯和抗剪承载力，同时还能提高负弯矩区钢梁下翼缘的稳定承载力。该补强构造可通过工厂预制，加工安装方便，性能优异。
Steel beam web opening rectangular hole closed reinforcing structure reinforced by angle steel
采用角钢加强的钢梁腹板开矩形孔闭口补强构造
LIU ZHIXIN (author) / ZHANG LEI (author) / ZHANG KEWEI (author) / SHEN WENJIE (author) / HE LIANG (author) / XU ZHAOYU (author) / XU ZHENG'AN (author) / TONG GENSHU (author) / WANG MIAOMIAO (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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