Solid-web H-shaped honeycomb steel beam for polygonal hole

Abstract

The invention discloses a solid-web H-shaped honeycomb steel beam for a polygonal hole. The solid-web H-shaped honeycomb steel beam comprises an upper flange, a lower flange, an upper web and a lower web, wherein the upper flange is connected with the upper web; the lower flange is connected with the lower web; both the upper web and the lower web are provided with a straight line section parallel to the axis of the steel beam, an inclined line section forming an acute angle alpha with the axis of the steel beam, and a circular arc tangential to the straight line section and the inclined line section; the straight line section, the inclined line section and the circular arc are formed by performing curve-cutting on the web along the straight line section, the inclined line section and the circular arc, respectively; the straight line section of the upper web and the straight line section of the lower web are arranged in a staggered manner, and then are matched to form a web butt-welding seam by welding; and the inclined line section, the straight line section and the circular arc form a round polygonal hole on the web; due to the solid-web H-shaped honeycomb steel beam, the uneven stress to a polygonal hole honeycomb beam corner and loss divergence ratio of a round hole honeycomb beam are improved, the solid-web H-shaped honeycomb steel beam has the advantages of convenience in manufacturing and reliability in use, and is suitable for a floor system in the building steel structure field.

Description

technical field [0001] The patent of the invention relates to an H-shaped honeycomb steel beam with rounded polygonal holes and solid web in the field of building steel structures. Background technique [0002] The honeycomb beam improves the bending rigidity and bearing capacity of the original solid web beam, and at the same time reduces the structural weight; the honeycomb steel beam provides passage space for pipeline equipment and reduces the height of the building; and the honeycomb beam is beautiful, light-transmitting, ventilated, and earthquake-resistant favorable. In terms of economic performance, honeycomb beams save 25% to 30% of steel than solid web beams, and save 15% to 30% of painting, transportation and installation costs; honeycomb beams have the economy of truss structures, but are simpler to manufacture than trusses. Since it was used in engineering at the beginning of the 20th century, especially with the emergence of rolled H-shaped steel, honeycomb be...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of stress concentration at the corners of the holes in the prior art, the inability to give full play to the performance of the steel, and the fact that the honeycomb beams with circular holes need to be cut twice along the web, which increases the manufacturing process and cost. Beam loss expansion ratio, the problem of wasting steel; provide a polygonal hole solid web H-shaped honeycomb steel beam; improve the unreasonable force of the polygonal hole honeycomb beam hole angle and the round hole honeycomb beam loss expansion ratio, with convenient manufacture and good practical performance , reliable use, suitable for floor systems in the field of building steel structures, such as three-dimensional garages, high-rise buildings, long-span public buildings, long-span corridors and other projects

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