Construction device and construction method of movable expansion type openable awning

Abstract

The invention provides a construction device and a construction method of a movable expansion type openable awning. The device comprises a middle roof truss system, an expansion roof truss system, a middle rack system and a free moving system. The middle roof truss system is supported by the middle track system and moves along a middle track in the middle track system along with the middle track system. The expansion roof truss system is fixed on the free moving system and laps the middle track system to carry out telescopic movement along the middle roof truss system. The construction methodis performed based on the construction device. Through the construction device, a movable and openable awning device can be built in a construction place, so effects on construction schedules imposedby high temperature in winter can be reduced, and effects on a foundation pit and construction workers and devices on two sides of foundation pit imposed by rain can be reduced. In addition, by controlling opening of the awning, convenience is provided for a gantry crane hoisting device, a problem that gantry crane working is affected after the awning is installed is solved, efficiency is improvedand construction period is shortened.

Description

technical field [0001] The invention relates to a construction device and a construction method in the technical field of construction engineering, in particular to a construction device and a construction method of a movable and expandable openable canopy. Background technique [0002] During the development of urban underground space, construction operations such as excavation of foundation pits are usually required. Due to the advantages of low construction cost and mature technology, the open cut method has gradually become one of the most commonly used methods in foundation pit excavation. Since the excavation of the foundation pit by the open cut method is often carried out outdoors, it is obviously affected by factors such as weather. However, in areas with abundant rainfall such as the southeast coast, the annual precipitation is often above 1000 mm and the rainy season lasts for a long time, which may easily cause water accumulation in the pit and affect the safety...

AI Technical Summary

Problems solved by technology

"Although the above-mentioned patent solves the disadvantage that the traditional canopy cannot be moved, and saves the cost of canopy assembly and movement, the construction site on both sides of the foundation pit still needs to build an additional canopy when there is a rain or sunshade requirement. Time-consuming and labor-intensive, and it will cause trouble when large machinery enters and exits the foundation pit through the gantry crane

Images