Large-span V-shaped truss structure system support node

Abstract

The invention relates to a large-span V-shaped truss structure system support joint, and relates to the technical field of airport construction. The support joint comprises an upper main supporting rod arranged in the vertical direction, a plurality of first supporting pipes fixedly arranged on the upper main supporting rod, a supporting ring arranged on the outer side of the upper main supporting rod in a sleeving mode, a lower main supporting rod detachably connected to the lower portion of the upper main supporting rod, a connecting base fixedly arranged at the bottom of the lower main supporting rod and a plurality of second supporting pipes fixedly arranged on the lower main supporting rod. The supporting ring is fixedly connected with the outer side wall of the upper main supporting rod, the first supporting pipes are obliquely arranged from top to bottom, the cross sectional area of the upper main supporting rod is smaller than that of the lower main supporting rod, and the center lines of the first supporting pipes and the center lines of the second supporting pipes intersect at one point on the axis of the upper main supporting rod. The inclined truss structure has the advantages that stress of the supporting pipes at different angles is collected to one point, the connecting strength between the support joint and the supporting pipes and the stability of the inclined truss structure are improved, and meanwhile resources are saved.

Description

technical field [0001] The present application relates to the field of airport construction technology, and in particular to a support node of a large-span V-shaped truss structure system. Background technique [0002] With the rapid development of my country's economy, the fleet size of the civil aviation transportation industry continues to grow. On the one hand, domestic aircraft maintenance companies have a growing demand for building multi-seat and super-span maintenance hangars at one time; The airspace height limit of construction sites is becoming more and more stringent. [0003] At present, in the design of the super-span maintenance hangar roof in the ultra-low airspace height-limited site, the primary difficulty is the design of the roof inclined truss structure system. The keel on the support node and the column supported between the ground and the support node, the support node, a plurality of keels and the column are connected to form a whole. The support t...

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Problems solved by technology

[0003] At present, in the design of super-long-span maintenance hangar roofs in ultra-low airspace and height-limited sites, the primary difficulty is the design of the oblique truss structure system of the roof, in which the oblique truss structure system of the roof includes multiple support nodes and multiple intersection connections. The keel on the support node and the column supported between the ground and the support node, the support node, multiple keels and the column are connected to form a whole, the support node includes the main strut and multiple for connecting with the keel Multiple keels on the same support node are in one-to-one correspondence with multiple support tubes. The space structure of different support tubes on the support node is relatively complex according to the force requirements, so the angles between different support tubes are relatively complicated. The reason why it is called a support node is that the force of each support tube needs to be brought together at one point; however, if the main support is thinner, the size of the support tube is larger and the angles between multiple support tubes and the main support are different, It is difficult for multiple support tubes to be distributed centrally, so the force of multiple support tubes is difficult to gather at one point. After the support node bears a large force, the connection between the support tube and the main pole is prone to fracture, resulting in partial collapse of the oblique truss structure. If the main pole is thick, it will cause a serious waste of resources, and it is inconvenient to install

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