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Steel-concrete composite continuous beam, connecting piece of hogging moment area of steel-concrete composite continuous beam and construction method
The invention discloses a steel-concrete composite continuous beam, a connecting piece of a hogging moment area of the steel-concrete composite continuous beam and a construction method. The connecting piece comprises a perforated plate, transverse steel bars and a foam filling material; the perforated plate is fixedly welded to a top plate of a hogging moment area steel beam, the length extendingdirection of the perforated plate is parallel to the bridge direction of a bridge, a row of oval holes are formed in the perforated plate in the length extending direction of the perforated plate, and the long axis direction of each oval hole is parallel to the length extending direction of the perforated plate. The number of the transverse steel bars is consistent with that of the oval holes; the length extension direction of each transverse steel bar is parallel to the transverse bridge direction of the bridge, and the transverse steel bars penetrate through the oval holes in a one-to-one correspondence mode; and the foam filling material is a filling block body with a complete circular through hole in the middle. Therefore, the steel beam in the hogging moment area and the concrete topplate in the hogging moment area can longitudinally slide, the tensile stress of a bridge deck slab in the area is effectively reduced, meanwhile, the transverse anti-shearing effect and the verticalanti-pulling capacity are reserved, and the safety and durability of the bridge are improved.
本发明公开了一种钢‑混组合连续梁及其负弯矩区的连接件、施工方法。所述连接件包括开孔板、横向钢筋及泡沫填充材料；开孔板与负弯矩区钢梁的顶板焊接固定，开孔板的长度延伸方向与桥梁的顺桥向平行，并沿着自身的长度延伸方向设置有一排椭圆形孔，每个椭圆形孔的长轴方向均与开孔板的长度延伸方向平行；横向钢筋的数量与椭圆形孔的数量一致；各横向钢筋的长度延伸方向与桥梁的横桥向平行，并一一对应地穿过各椭圆形孔设置；泡沫填充材料为中部具有完整的圆形通孔的填充块体。因此，本发明可使负弯矩区钢梁和弯矩区混凝土顶板纵向滑移，有效降低该区域的桥面板拉应力产生，同时保留了横向抗剪效果和竖向的抗拔能力，提高桥梁安全性和耐久性。
Steel-concrete composite continuous beam, connecting piece of hogging moment area of steel-concrete composite continuous beam and construction method
The invention discloses a steel-concrete composite continuous beam, a connecting piece of a hogging moment area of the steel-concrete composite continuous beam and a construction method. The connecting piece comprises a perforated plate, transverse steel bars and a foam filling material; the perforated plate is fixedly welded to a top plate of a hogging moment area steel beam, the length extendingdirection of the perforated plate is parallel to the bridge direction of a bridge, a row of oval holes are formed in the perforated plate in the length extending direction of the perforated plate, and the long axis direction of each oval hole is parallel to the length extending direction of the perforated plate. The number of the transverse steel bars is consistent with that of the oval holes; the length extension direction of each transverse steel bar is parallel to the transverse bridge direction of the bridge, and the transverse steel bars penetrate through the oval holes in a one-to-one correspondence mode; and the foam filling material is a filling block body with a complete circular through hole in the middle. Therefore, the steel beam in the hogging moment area and the concrete topplate in the hogging moment area can longitudinally slide, the tensile stress of a bridge deck slab in the area is effectively reduced, meanwhile, the transverse anti-shearing effect and the verticalanti-pulling capacity are reserved, and the safety and durability of the bridge are improved.
本发明公开了一种钢‑混组合连续梁及其负弯矩区的连接件、施工方法。所述连接件包括开孔板、横向钢筋及泡沫填充材料；开孔板与负弯矩区钢梁的顶板焊接固定，开孔板的长度延伸方向与桥梁的顺桥向平行，并沿着自身的长度延伸方向设置有一排椭圆形孔，每个椭圆形孔的长轴方向均与开孔板的长度延伸方向平行；横向钢筋的数量与椭圆形孔的数量一致；各横向钢筋的长度延伸方向与桥梁的横桥向平行，并一一对应地穿过各椭圆形孔设置；泡沫填充材料为中部具有完整的圆形通孔的填充块体。因此，本发明可使负弯矩区钢梁和弯矩区混凝土顶板纵向滑移，有效降低该区域的桥面板拉应力产生，同时保留了横向抗剪效果和竖向的抗拔能力，提高桥梁安全性和耐久性。
Steel-concrete composite continuous beam, connecting piece of hogging moment area of steel-concrete composite continuous beam and construction method
钢-混组合连续梁及其负弯矩区的连接件、施工方法
WU WENQING (author) / DAI JINXI (author) / SHI ZHONGQI (author) / WANG XINYA (author) / LIU HONGYI (author)
2021-02-19
Patent
Electronic Resource
Chinese
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