CN101906871A - Simple load-bearing formwork truss - Google Patents

Abstract

The invention discloses a simple bearing type template truss, and the structure thereof is composed of a template, upper chord tendons, lower chord tendons and web bars, wherein the upper chord tendons and the lower chord tendons are arranged in an up-down parallel and spaced mode; the web bars at the two sides of the upper chord tendons and the lower chord tendons are formed by welding a plurality of inversed V-shaped first single web bars and second single web bars in a slant mode; the upper ends of the first single web bars and the second single web bars are respectively packed and welded on the upper chord tendons while the lower ends the first single web bars and the second single web bars are respectively welded on the two sides of the lower chord tendons, and the extension parts thereof are buckled and fixed on the template by welding horizontally; and the side surfaces of the two ends of the upper chord tendons and the lower chord tendons are respectively wielded and fixed with vertical bars and the bottom parts of the vertical bars are welded and fixed on the template. The invention has the following beneficial effects that a plurality of inversed V-shaped web bars are used to replace corrugated web bars, thus the structure and manufacturing process are simple, the cost is low, the processing difficulty is small and the production effieciency is high. The strength, rigidity and shearing resistance of the template truss are greatly enhanced, and the combination property and bearing capacity of the template truss are improved.

Description

Simple load-bearing formwork truss

technical field

The invention relates to a formwork truss, in particular to a simple load-bearing formwork truss.

Background technique

Formwork trusses are the main structural components such as floor slabs, roofs, and foundation slabs in multi-high-rise buildings. The structure of the formwork truss in the prior art includes: a formwork and a plurality of parallel trusses welded and fixed on the formwork. The truss includes: an upper chord bar, a lower chord bar and a web bar; the upper chord bar is one and is arranged at the top of the truss; the lower chord bar is symmetrically arranged below the upper chord bar, and the upper chord bar and the lower chord bar are located at the cross section of the truss Three points of an isosceles triangle; the abdominal ribs are corrugated and welded to the upper and lower chords on both sides of the truss.

The formwork truss of above-mentioned prior art has following shortcoming:

1. Because the abdominal ribs are corrugated, the manufacturing process is complicated, the equipment cost is high, the processing is difficult, and the production efficiency is low.

2. A plurality of parallel trusses are arranged on the formwork, and there is no connection between each truss, so there is a difference in the overall bearing capacity of the formwork trusses.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the above-mentioned technologies, and provide a simple load-bearing formwork truss with simple manufacturing process, low cost, interconnected trusses on the formwork as a whole, and high bearing capacity.

The technical solution to solve the above technical problems is: a simple load-bearing formwork truss, the simple load-bearing formwork truss includes: formwork, upper chord bars, lower chord bars and abdominal bars, the upper chord bars and lower chord bars are vertically parallel Set at intervals; the webs on both sides of the upper chord and the lower chord are composed of a plurality of Λ-shaped first single webs and second single webs obliquely welded, the first single web and the second single web The upper ends of the root ribs are respectively wrapped and welded on the upper chord bars, the lower ends of the first single web bar and the second single web bar are respectively welded on both sides of the lower chord bars, and the extension parts are bent and welded horizontally and fixed on the formwork; Vertical rods are respectively welded and fixed on the sides of the two ends of the upper chord reinforcement and the lower chord reinforcement, and the bottom of the vertical rods is welded and fixed on the formwork.

The beneficial effect of the present invention is: the present invention overcomes the defective of prior art, and the present invention replaces the corrugated type abdominal tendon with complicated structure in the prior art with multiple Λ-shaped single abdominal tendons, and the abdominal tendon structure and manufacturing process of the present invention are simple , The manufacturing cost is low, the processing difficulty is small, and the production efficiency is high.

The plurality of trusses on the cross section of the formwork truss of the present invention are welded and fixed as a whole with a plurality of single web bars and fixed on the formwork, so that the strength, rigidity and shear resistance of the formwork trusses are greatly strengthened and improved. The compression and shear resistance of the formwork truss improves the comprehensive performance of the formwork truss so that it can withstand greater construction loads; the formwork truss has good stability and high bearing capacity.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is a partial perspective view of Fig. 1 .

"Description of Serial Numbers in the Attached Drawings"

1: vertical bar; 2a: first single abdominal tendon; 2b: second single abdominal tendon; 3a: upper chord tendon; 3b: lower chord tendon; 4: template.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a front view of the present invention; Fig. 2 is a sectional view of A-A in Fig. 1; Fig. 3 is a partial perspective view in Fig. 1 .

The invention provides a simple load-bearing formwork truss, which includes: formwork, upper chord bars, lower chord bars and abdominal bars.

The upper chord ribs 3a and the lower chord ribs 3b are arranged in parallel and spaced up and down.

The abdominal muscles on both sides of the upper chord 3a and the lower chord 3b are composed of a plurality of Λ-shaped first single abdominal muscles 2a and second single abdominal muscles 2b obliquely welded, that is, the first single abdominal muscles 2a and the second single abdominal muscles 2a Two single abdominal ribs 2b are obliquely welded on both sides of the upper string rib 3a and the lower string rib 3b, and form a Λ-shaped pattern, and a plurality of Λ-shaped abdominal ribs can be formed according to different sizes on both sides of the upper string rib 3a and the lower string rib 3b .

The upper ends of the first single abdominal muscle 2a and the second single abdominal muscle 2b are respectively wrapped and welded on the upper chord 3a, and the lower ends of the first single abdominal muscle 2a and the second single abdominal muscle 2b are respectively welded on the lower chord After both sides of the rib 3b, its extended part is bent and welded horizontally and fixed on the template 4.

Vertical rods 1 are respectively welded and fixed on the sides of the two ends of the upper chord rib 3 a and the lower chord rib 3 b, and the bottom of the vertical rod 1 is welded and fixed on the formwork 4 .

As shown in Fig. 2 and Fig. 3, the template 4 is provided with a plurality of upper chord ribs 3a and lower chord ribs 3b parallel to each other and at intervals, and the first cross section of the plurality of upper chord ribs 3a and lower chord ribs 3b The parts where the first single web 2a and the second single web 2b are welded and fixed on the template 4 are respectively connected as a whole and welded on the template 4 respectively.

More specifically, a plurality of upper chord ribs 3a and lower chord ribs 3b parallel to each other and spaced apart are arranged on the template 4, and the first single abdominal rib 2a on the cross section of the plurality of upper chord ribs 3a and lower chord ribs 3b is mutually Connect; the second single web 2b on the cross-section of the plurality of upper chord ribs 3a and lower chord ribs 3b is connected to each other, and finally a plurality of upper chord ribs 3a on the formwork 4 and lower chord ribs 3b are welded on it Both a single abdominal muscle 2a and a second single abdominal muscle 2b are welded with the template 4 as a whole.

Claims (2)

1. simple bearing type template truss, described simple bearing type template truss comprises: template, the muscle that winds up, lower edge muscle and abdomen muscle is characterized in that described muscle that winds up (3a) and lower edge muscle (3b) are parallel interval setting up and down; Tilt to be welded to form at the abdomen muscle of muscle that winds up (3a) and lower edge muscle (3b) both sides first single abdomen muscle (2a) and second single abdomen muscle (2b) by a plurality of Λ of being types, the upper end of described first single abdomen muscle (2a) and second single abdomen muscle (2b) is wrapped up respectively and is welded on the muscle that winds up (3a), the lower end of first single abdomen muscle (2a) and second single abdomen muscle (2b) is welded on lower edge muscle (3b) two rear flank respectively, and its extension bending is level and is weldingly fixed on the template (4); Be welded with montant (1) respectively at muscle that winds up (3a) and lower edge muscle (3b) side faces at both ends, described montant (1) bottom is weldingly fixed on the template (4).

2. according to the simple bearing type template truss described in the claim 1, it is characterized in that, described template (4) is provided with a plurality of being parallel to each other and muscle that winds up (3a) and lower edge muscle (3b) at interval, and the part that first the single abdomen muscle (2a) on the cross section of described a plurality of muscle that wind up (3a) and lower edge muscle (3b) and second single abdomen muscle (2b) are weldingly fixed on the template (4) connects as one separately respectively and is welded on the template (4).

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