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A platform for research: civil engineering, architecture and urbanism
Close-splicing laminated slab connecting structure of fiber grid reinforced prefabricated bottom slab and construction method of close-splicing laminated slab connecting structure
The invention relates to a closely-spliced laminated slab connecting structure of a fiber grid reinforced prefabricated bottom slab, which comprises a concrete prefabricated bottom slab, a bidirectional fiber fabric grid reinforced layer and an oblique bending steel bar, and is characterized in that the bidirectional fiber fabric grid reinforced layer is embedded in the bottom of the prefabricated bottom slab; every two adjacent prefabricated bottom plates in the left-right direction are tightly spliced and clamped through trapezoid protrusions and trapezoid concave holes in the two sides of the plates, plate bottom longitudinal load-bearing steel bars in the plates obliquely and upwards stretch out at the positions close to the ends of the plates to form obliquely-bent steel bars, and post-pouring concrete layers provided with plate face two-way steel bars are arranged on the upper portions of the prefabricated bottom plates. And the extending parts of the inclined bent steel bars are anchored into the post-pouring concrete layer. The bidirectional fiber fabric grid reinforcing layer is embedded in the bottom of the prefabricated bottom plate, so that the flexural capacity of the prefabricated bottom plate and the anti-cracking strength of plate bottom concrete are improved, and plate bottom supports can be properly reduced; the stress at the bottom of the plate is transmitted by obliquely bending the steel bars, so that the bearing capacity of the closely-spliced laminated plate is enhanced; and the structural integrity is better, and the bearing capacity is higher.
本发明涉及一种纤维网格增强预制底板的密拼叠合板连接结构，包括混凝土预制底板、双向纤维织物网格增强层和斜向弯折钢筋，双向纤维织物网格增强层嵌设在预制底板的底部内，左右相邻的两块预制底板通过板两侧的梯形突出和梯形凹孔密拼卡合，板内的板底纵向受力钢筋在靠近板端处斜向上伸出形成斜向弯折钢筋，预制底板上部设有配置板面双向钢筋的后浇混凝土层，斜向弯折钢筋伸出部分锚入后浇混凝土层。本发明在预制底板底部内嵌双向纤维织物网格增强层，提高预制底板的抗弯承载力和板底混凝土的抗裂强度，从而可适当减少板底支撑；通过斜向弯折钢筋传递板底应力，增强密拼叠合板的承载能力；结构整体性更好、承载能力更强。
Close-splicing laminated slab connecting structure of fiber grid reinforced prefabricated bottom slab and construction method of close-splicing laminated slab connecting structure
The invention relates to a closely-spliced laminated slab connecting structure of a fiber grid reinforced prefabricated bottom slab, which comprises a concrete prefabricated bottom slab, a bidirectional fiber fabric grid reinforced layer and an oblique bending steel bar, and is characterized in that the bidirectional fiber fabric grid reinforced layer is embedded in the bottom of the prefabricated bottom slab; every two adjacent prefabricated bottom plates in the left-right direction are tightly spliced and clamped through trapezoid protrusions and trapezoid concave holes in the two sides of the plates, plate bottom longitudinal load-bearing steel bars in the plates obliquely and upwards stretch out at the positions close to the ends of the plates to form obliquely-bent steel bars, and post-pouring concrete layers provided with plate face two-way steel bars are arranged on the upper portions of the prefabricated bottom plates. And the extending parts of the inclined bent steel bars are anchored into the post-pouring concrete layer. The bidirectional fiber fabric grid reinforcing layer is embedded in the bottom of the prefabricated bottom plate, so that the flexural capacity of the prefabricated bottom plate and the anti-cracking strength of plate bottom concrete are improved, and plate bottom supports can be properly reduced; the stress at the bottom of the plate is transmitted by obliquely bending the steel bars, so that the bearing capacity of the closely-spliced laminated plate is enhanced; and the structural integrity is better, and the bearing capacity is higher.
本发明涉及一种纤维网格增强预制底板的密拼叠合板连接结构，包括混凝土预制底板、双向纤维织物网格增强层和斜向弯折钢筋，双向纤维织物网格增强层嵌设在预制底板的底部内，左右相邻的两块预制底板通过板两侧的梯形突出和梯形凹孔密拼卡合，板内的板底纵向受力钢筋在靠近板端处斜向上伸出形成斜向弯折钢筋，预制底板上部设有配置板面双向钢筋的后浇混凝土层，斜向弯折钢筋伸出部分锚入后浇混凝土层。本发明在预制底板底部内嵌双向纤维织物网格增强层，提高预制底板的抗弯承载力和板底混凝土的抗裂强度，从而可适当减少板底支撑；通过斜向弯折钢筋传递板底应力，增强密拼叠合板的承载能力；结构整体性更好、承载能力更强。
Close-splicing laminated slab connecting structure of fiber grid reinforced prefabricated bottom slab and construction method of close-splicing laminated slab connecting structure
一种纤维网格增强预制底板的密拼叠合板连接结构及其建造方法
PENG YAPING (author) / LI WUJIAN (author) / ZHOU YIZU (author)
2024-12-24
Patent
Electronic Resource
Chinese
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