Super-long-span n-shaped portal for fabricated building

Abstract

The invention discloses a super-long-span n-shaped portal for a fabricated building. The super-long-span n-shaped portal comprises gate posts at the two ends of the portal and horizontal beams supported by the two gate posts, inhaul cables are arranged below the horizontal beams, the two ends of each inhaul cable are connected with the gate posts, vertical support arms are connected between the horizontal beams and the inhaul cables, and the upper ends of the support arms are fixed to a support arm connecting base below the horizontal beams through flange connectors; the lower ends of the support arms are hinged to inhaul cable buckles, and the support arms have the functions of energy absorption and damping. The inhaul cables are connected to the gate posts through reversing pulleys and inhaul cable end connecting mechanisms at the lower ends of the gate posts. Preferably, compound rectangular beam structures which are joined section by section are adopted for the horizontal beams. The super-long-span n-shaped portal has the advantages that the inhaul cables are arranged below the horizontal beams, the support arms are arranged between the horizontal beams and the inhaul cables below the beams, the long-span bearing portal can be formed, the upper surfaces of the horizontal beams of the portal are free of barriers, multiple portals are parallelly arranged to serve as supports,and the purpose of construction of a long-span platform is achieved. The super-long-span n-shaped portal has obvious effects of promoting the development of modern military facilities, the development of geological resources and the like.

Description

technical field [0001] The invention belongs to the field of fixed buildings, and in particular relates to a combined load-bearing mechanism in an assembled building. Background technique [0002] With the development of technology in various fields that require buildings, new issues are constantly being raised regarding the structure of buildings. In modern buildings, due to the constraints of terrain and geological conditions, or the need for large internal spaces, the design of long-span load-bearing structures has become common. However, in the prior art, long-span building structures are mostly seen in the upper cable-stayed structure on the bridge. Because the tension structure is built above the use plane (bridge deck), it can only provide a long and narrow use plane (table top) ), it is impossible to provide a platform with a width that is not limited by the width of the use surface and has no obstacles in the use plane. At present, the only way to build platforms ...

AI Technical Summary

Problems solved by technology

However, in the prior art, long-span building structures are mostly seen in the upper cable-stayed structure on the bridge. Because the tension structure is built above the use plane (bridge deck), it can only provide a long and narrow use plane (table top) ), it cannot provide a platform table whose width is not limited by the width of the surface and is unobstructed in the use plane

At present, the only way to build platforms with large spans in length and width is to increase the cross-section of beams and columns, which not only wastes construction materials and increases labor input, but also cannot increase the cross-section of beams and columns infinitely, and excessively enlarges the cross-section of beams and columns. , not only takes up space, but also has potential safety hazards

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