Large-sized closed roof formed by light steel truss arch for building

A light-weight steel and roof technology, which is applied to roofs, buildings, building components, etc., can solve the problems of large-scale building roofs that cannot be closed, and achieve the effects of reducing the weight of the roof, less interdependence, and less structural

Inactive Publication Date: 2014-02-19
张培聪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the roof of a large building with a span of more than 100 meters cannot be closed in the above-mentioned prior art, the present invention provides a structure with strong bearing capacity, good component rigidity, high earthquake resistance, high stability of the overall structure, and interdependence of structures. Closed roofs of large buildings with less flexibility and lower cost

Method used

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  • Large-sized closed roof formed by light steel truss arch for building
  • Large-sized closed roof formed by light steel truss arch for building
  • Large-sized closed roof formed by light steel truss arch for building

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1, in Figure 1-Figure 9 middle, figure 1 It is a hangar with a rectangular roof, the length of the hall (X direction) is 270 meters, and the width (Y direction) is 240 meters. There are concrete columns 1 on the three surrounding sides, and there are no concrete columns in the middle and right end. There are two rows in the X direction, 31 concrete columns in each row, a total of 30 bays, the first section of the concrete column is 1000×700, and the two sides of the end column and the top section of the rolling bearing are made into short corbels, including corbels 1. The section length of the top of the column is 1200 mm, and the spacing between each span is 9 meters, a total of 270 meters; there is a row in the Y direction, and there are 39 concrete columns in the upper span of the row, with a total of 40 spacings, and the section of the concrete columns is 500×800. Each space is 6 meters, a total of 240 meters; arch trusses 34 are arranged on the two concre...

Embodiment 2

[0035] Example 2, in Figure 10-Figure 15 middle, Figure 10 It is a gymnasium with a circular roof. The diameter of the roof is 240 meters. There are concrete columns 1 around and no concrete columns in the middle. The entire roof is provided with 24 rows of arch trusses 34 (can also be designed as 22 or 18 rows). One end of the lower beam is movable on the concrete column 1, and the other end is fixed on the concrete column. Except that the central structure is different from Embodiment 1, other structures are the same as Embodiment 1. The structure of the upper beam and the lower beam at the center of the roof is: a connecting steel disc is arranged in the middle of the roof, and the connecting steel disc includes an upper round steel disc 22 and a lower round steel disc 23, and tenons are arranged around the upper round steel disc 22 Seat 24, the tenon seat and the upper round steel plate are integral, also can be combined with last round steel plate as a whole, welded i...

Embodiment 3

[0036] Example 3, in Figure 16 with Figure 18 Among them, embodiment 3 is based on embodiment 2. In order to improve the lighting degree, indoor air flow and appearance aesthetics of the circular roof, the circular roof is provided with skylights capable of lighting and mechanical ventilation. The arc slope is higher than the circular roof surface. The skylight roof is composed of glass lighting panels 37 and triangular frames 28. The glass lighting panels are in the shape of a continuous inverted V-shaped folded surface. The triangular frame is located between the glass lighting panels and the circular roof. An exhaust fan 27 is arranged in the skylight, and the glass daylighting panel is generally made of double-layer astigmatism glass (such as embossed glass, frosted glass), and an annular drainage groove 40 is arranged around the circular roof, and the drainage groove is supported on On the ring-shaped concrete beam 39, the edge portion of the roof is formed by inclined...

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Abstract

The invention discloses a large-sized closed roof formed by a light steel truss arch for a building, which comprises truss arch racks (34) of a rectangular roof and truss arch racks (34) of a circular roof. One end of each truss arch rack (34) is movably arranged on a corresponding concrete column (1) while the other end of the truss arch rack (34) is fixedly arranged on the corresponding concrete column (1), each truss arch rack consists of a lower beam (6), an upper beam (2), a suspender (35), an inclined rod (4) and a steel cable (5), a plurality of short rectangular steel bars are connected via steel hinge pins (14) to form each arc-shaped upper beam, a plurality of short rectangular steel clamp plates (8) are connected with bolts (7) to form each lower beam, two ends of each upper beam are fixed on the corresponding lower beam via tongue-and-groove steel wedges (12), one end of each lower beam can freely stretch and retract on the corresponding concrete column via a steel drum (10), the other end of each lower beam is fixed on the corresponding concrete column, and two ends of each inclined rod are movably connected with the corresponding upper beam and the corresponding lower beam. The roof is compact in structure, light in weight, fine in rigidity, high in anti-seismic capacity and structural stability, low in construction cost, convenient in construction and short in construction period, and can meet service requirements of a large-span stadium without struts in the middle, a culture and entertainment center, wharf, a large-sized airplane roof and the like.

Description

technical field [0001] The invention relates to a building roof, in particular to a closed roof of a large building framed by lightweight steel arch trusses. Background technique [0002] At present, in construction projects, for the roofs of small and medium-sized construction projects with no pillars in the middle and spans within 100 meters, steel structures, grid structures, suspension cable structures, etc. are mostly used as closed roof structures by combining rigid material rods. For the roofs of large-scale construction projects with no pillars in the middle and a span of more than 100 meters (such as gymnasiums, cultural and entertainment centers, port terminals, large-scale aircraft manufacturing and parking places, etc.), if the above-mentioned small and medium-sized construction project roof structures are still used, it will be It will bring the following problems: First, because the size of the main load-bearing member and the cross-section of the bar must incr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B7/00E04B7/14E04B1/32E04B1/342
Inventor 张培聪
Owner 张培聪
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