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A platform for research: civil engineering, architecture and urbanism
Perforated inverted T-shaped steel grating-UHPC prefabricated combined bridge deck slab and construction method thereof
The invention relates to a perforated inverted-T-shaped steel grating-UHPC prefabricated combined bridge deck slab and a construction method thereof. A plurality of main inverted-T-shaped steel are arranged in parallel, and a plurality of structural inverted-T-shaped steel are perpendicularly connected with the main inverted-T-shaped steel in a crossed mode; uniformly distributed main holes are formed in a web plate of the main inverted-T-shaped steel, uniformly distributed construction holes are formed in a web plate of the construction inverted-T-shaped steel, reinforcing steel bars penetrate through the main holes and the construction holes to form a reinforcing mesh, and the reinforcing mesh, the main inverted-T-shaped steel and the construction inverted-T-shaped steel form a steel grating framework unit; uHPC is poured into the steel grating framework units to form prefabricated combined bridge deck slab units, the multiple prefabricated combined bridge deck slab units are spliced on site, high-strength concrete is used for pouring wet joints and integrated concrete on the wet joints, and an asphalt concrete pavement layer is laid on the surfaces of the prefabricated combined bridge deck slabs; while the requirements for strength and rigidity are met, on-site construction steps are reduced, the dead weight of the bridge deck slab is reduced, and the risks of fatigue cracking, pavement layer damage, concrete tensile cracking and the like are reduced.
本发明涉及一种开孔丄型钢格栅‑UHPC预制组合桥面板及其施工方法，若干主丄型钢平行布设，若干构造丄型钢与主丄型钢垂直交叉相连；在主丄型钢的腹板上开设均匀分布的主孔洞，构造丄型钢的腹板上开设均匀分布的构造孔洞，主孔洞以及构造孔洞内均穿设钢筋构成钢筋网，钢筋网与主丄型钢、构造丄型钢构成钢格栅骨架单元；向钢格栅骨架单元浇筑UHPC形成预制组合桥面板单元，若干预制组合桥面板单元现场进行拼接，并用高强混凝土浇筑湿接缝及其上的整体化混凝土，预制组合桥面板表面铺筑沥青混凝土铺装层；本发明在满足强度和刚度需求的同时，减少现场施工步骤、减轻桥面板自重，降低了疲劳开裂、铺装层损坏和混凝土受拉开裂等风险。
Perforated inverted T-shaped steel grating-UHPC prefabricated combined bridge deck slab and construction method thereof
The invention relates to a perforated inverted-T-shaped steel grating-UHPC prefabricated combined bridge deck slab and a construction method thereof. A plurality of main inverted-T-shaped steel are arranged in parallel, and a plurality of structural inverted-T-shaped steel are perpendicularly connected with the main inverted-T-shaped steel in a crossed mode; uniformly distributed main holes are formed in a web plate of the main inverted-T-shaped steel, uniformly distributed construction holes are formed in a web plate of the construction inverted-T-shaped steel, reinforcing steel bars penetrate through the main holes and the construction holes to form a reinforcing mesh, and the reinforcing mesh, the main inverted-T-shaped steel and the construction inverted-T-shaped steel form a steel grating framework unit; uHPC is poured into the steel grating framework units to form prefabricated combined bridge deck slab units, the multiple prefabricated combined bridge deck slab units are spliced on site, high-strength concrete is used for pouring wet joints and integrated concrete on the wet joints, and an asphalt concrete pavement layer is laid on the surfaces of the prefabricated combined bridge deck slabs; while the requirements for strength and rigidity are met, on-site construction steps are reduced, the dead weight of the bridge deck slab is reduced, and the risks of fatigue cracking, pavement layer damage, concrete tensile cracking and the like are reduced.
本发明涉及一种开孔丄型钢格栅‑UHPC预制组合桥面板及其施工方法，若干主丄型钢平行布设，若干构造丄型钢与主丄型钢垂直交叉相连；在主丄型钢的腹板上开设均匀分布的主孔洞，构造丄型钢的腹板上开设均匀分布的构造孔洞，主孔洞以及构造孔洞内均穿设钢筋构成钢筋网，钢筋网与主丄型钢、构造丄型钢构成钢格栅骨架单元；向钢格栅骨架单元浇筑UHPC形成预制组合桥面板单元，若干预制组合桥面板单元现场进行拼接，并用高强混凝土浇筑湿接缝及其上的整体化混凝土，预制组合桥面板表面铺筑沥青混凝土铺装层；本发明在满足强度和刚度需求的同时，减少现场施工步骤、减轻桥面板自重，降低了疲劳开裂、铺装层损坏和混凝土受拉开裂等风险。
Perforated inverted T-shaped steel grating-UHPC prefabricated combined bridge deck slab and construction method thereof
一种开孔丄型钢格栅-UHPC预制组合桥面板及其施工方法
DING HANSHAN (author) / REN PENGFEI (author) / WANG PENG (author) / CHENG YUXUAN (author)
2023-06-02
Patent
Electronic Resource
Chinese
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