Fabricated H-shaped steel trestle plate

Abstract

The invention discloses a fabricated H-shaped steel trestle plate. The upper end face of a main body of the trestle plate is provided with guard bars, connection H-shaped steel is arranged at the inner side of the main body of the trestle plate, the connection H-shaped steel is composed of lower plate members, bearing columns, upper plate members and dovetail joints, the lower plate members, the bearing columns and the upper plate members are welded together, the dovetail joints are clamped on plate surfaces of the upper plate members, end H-shaped steel is arranged on both sides of the connection H-shaped steel, lifting ring threaded holes are formed in the outer surface of the end H-shaped steel, sealing tubes are arranged between the lifting ring threaded holes, and steel connecting parts are arranged on one sides of the sealing tubes. According to the fabricated H-shaped steel trestle plate, the main body of the trestle plate provides a stable supporting plane for the constructionside, the main body of the trestle plate has high supporting strength, the bearing is more stable, the safety performance is more prominent, the main body of the trestle plate can be quickly spliced and assembled, and a more stable trestle for transportation and traffic is constructed.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an assembled H-shaped steel trestle board. Background technique [0002] With the continuous development of China's social economy, major cities have begun to develop and use underground space. For deep foundation pits with relatively small sites and large foundation pits, or where construction platforms need to be arranged in the foundation pit, trestle boards are often arranged on the support , during the excavation of super-large and super-deep foundation pits, most of the foundation pits use concrete supports and trestle systems as the foundation pit support structure, and then use the trestle system to excavate the super-large foundation pits in sections, and earthwork transport vehicles pass through the foundation pits The concrete trestle system travels to each excavation surface, thereby increasing the speed of earthwork excavation and external transportatio...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of China's social economy, major cities have begun to develop and use underground space. For deep foundation pits with relatively small sites and large foundation pits, or where construction platforms need to be arranged in the foundation pit, trestle boards are often arranged on the support , during the excavation of super-large and super-deep foundation pits, most of the foundation pits use concrete supports and trestle systems as the foundation pit support structure, and then use the trestle system to excavate the super-large foundation pits in sections, and earthwork transport vehicles pass through the foundation pits The concrete trestle system travels to each excavation surface, thereby increasing the speed of earthwork excavation and external transportation, saving construction time and reducing construction costs. Most of the existing trestles are processed by section steel. When moving, excavators or loaders are used to move them. , the operation is extremely inconvenient, time-consuming and laborious. In order to ensure the continuous construction of the inverted arch of the tunnel, multiple sets of inverted arch trestles are required, and the connection strength between the trestles is not high, and the assembly efficiency is low, which seriously affects the construction. The driving safety of vehicles, especially heavy-duty vehicles, in the slope area of ​​trestle bridges bury safety hazards for on-site production operations, and even cause driving vehicles to slip and collide with anti-collision platforms or fall into deep foundation pits

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