CN210529940U

CN210529940U - 30m span bearing tension string wood beam layout structure

Info

Publication number: CN210529940U
Application number: CN201821870055.8U
Authority: CN
Inventors: 张东彪; 马建华; 白伟东
Original assignee: Daxing'anling Arctic Pole Wood Industry Co ltd
Current assignee: Daxing'anling Arctic Pole Wood Industry Co ltd
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2020-05-15
Anticipated expiration: 2028-11-14

Abstract

A30-meter span load-bearing beam string wood beam layout structure is characterized in that a beam string wood beam main body is an ultra-long arc beam, an oblique beam is used for supporting under each beam string, one end of the oblique beam is fixed on a building main body, the other end of the oblique beam is fixedly connected with the beam string beam through a metal piece connecting mechanism, every two beam string beams with the distance of 1m are connected through a beam with the length of 170 multiplied by 400 multiplied by 800mm at the position 6.684m and 24.684m away from one end respectively, a V-shaped metal supporting rod with the height of 1.8m is arranged respectively, a beam with the length of 170 multiplied by 400 multiplied by 800mm is connected at the position of 12.684m and 18.684m respectively, a V-shaped metal supporting rod with the height of 2.5 m is arranged respectively, and a pull lock with the length of phi 48 mm. Can be used as a main structure bearing wood beam of a large-span wood structure building roof.

Description

30m span bearing tension string wood beam layout structure

The technical field;

the utility model relates to a roof beam for building, especially large-span timber structure building roof main structure bearing wooden roof beam.

Background art:

at present, the main structure bearing wood beam of the wood structure building roof is cuboid and limited in length, and cannot be used as the main structure bearing wood beam of the large-span wood structure building roof, so that the problem is urgently needed to be solved.

The utility model has the following contents:

in order to overcome the defects of the prior art, the 30-meter-span bearing tension string wood beam layout structure for bearing the large-span wood structure building roof structure meets the bearing requirements of the main structures of the wood structure building roofs with different structural shapes. The 30-meter span load-bearing beam string wood beam layout structure main body is an ultra-long arc beam, an oblique beam is used for supporting under each beam string, one end of the oblique beam is fixed on the building main body, the other end of the oblique beam is fixedly connected with the beam string by a metal piece connecting mechanism, every two beam string beams with the distance of 1m are respectively connected with a beam with the distance of 170 multiplied by 400 multiplied by 800mm at the positions 6.684m and 24.684m away from one end, a V-shaped metal supporting rod with the height of 1.8m is respectively arranged, a beam with the distance of 170 multiplied by 400 multiplied by 800mm is connected with the positions of 12.684m and 18.684m, a V-shaped metal supporting rod with the height of 2.5 meters is respectively arranged, and a pull lock with the diameter of 48mm is used for supporting under. The metal piece connecting mechanism is characterized in that a groove is formed at the joint of the beam string and the oblique beam, a steel plate with the thickness of 10mm is arranged in the groove, holes are formed in the steel plate, the aperture is 20mm, the distance is 80mm, the wood beam at the corresponding part is also provided with the holes, and the holes are connected and fixed by a stainless steel pin with the diameter of 20 multiplied by 200mm, wherein the specification of the beam string curved beam is as follows: 200 mm. times.600 mm. times. 30.684 m. The utility model discloses through quality inspection station detection, elastic modulus can reach 9245Mpa, the biggest fracture, load is higher than 26.22KN, and bending strength reaches 45N/mm, glues line shear strength 12.89N/mm, reaches 1.5 hours through the fire prevention inspection fire endurance, satisfies 30 meters span and bears the weight of wooden beam design technical requirement. Can be used as a main structure bearing wood beam of a large-span wood structure building roof.

Description of the drawings:

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

FIG. 2 is a schematic view of the installation of the present invention;

fig. 3 is a process flow diagram of the present invention.

The specific implementation mode is as follows:

the utility model discloses a preferred embodiment, as shown in the figure, 30 meters span bears and opens string wooden beam layout structure and include overlength arc-shaped beam 1, uses an oblique beam 2 to do the support under the every arc-shaped beam, and oblique beam one end is fixed on building main part, and the other end links firmly with opening string for the roof beam metalwork coupling mechanism. The metal piece connecting mechanism is characterized in that a groove is formed in the connecting position of a beam string and an oblique beam, a 10mm thick steel plate is arranged in the groove, holes are formed in the steel plate, the hole diameter is 20mm, the interval is 80mm, the corresponding part of the wood beam is also formed in the hole, the stainless steel pin with the diameter of 20 multiplied by 200mm is used for connecting and fixing, an oblique beam 2 with the specification of 130mm multiplied by 300mm multiplied by 14115mm is used for supporting each beam string wood beam 1, one section of the oblique beam is fixed on a building main body, the other end of the oblique beam is connected with the beam string through a metal piece, the connecting mode is that the groove is formed in the connecting position of the beam string and the oblique beam, a 10mm thick steel plate is arranged in the groove, holes (the hole diameter is 20mm, the interval is 80 mm) are. The installation error of the metal connecting piece is within 2mm, every two string-stretching beams with the distance of 1m are respectively connected with a beam with the length of 170 multiplied by 400 multiplied by 800mm at the positions 6.684m and 24.684m away from one end, a V-shaped metal support rod 4 with the height of 1.8m is respectively arranged, a beam with the length of 170 multiplied by 400 multiplied by 800mm is connected at the positions 12.684m and 18.684m, a V-shaped metal support rod 5 with the height of 2.5 m is respectively arranged, and a pull cable 3 with the diameter of 48mm is used for supporting under the support rod, as shown in figure 2, the inclined beam, the pull lock and the support rod are used for increasing the bearing capacity and the deformation resistance of the string-stretching curved beam, the durability of the whole structure is improved, and the technical indexes such as the bearing capacity and the elastic modulus of the whole. The specification of the beam string curved beam is as follows: 200 mm. times.600 mm. times. 30.684 m. The tension-string wooden beam is spliced by adopting a standard material (38 multiplied by 235 multiplied by 4000 mm) of Canadian imported fine-grain Douglas fir (with the compressive strength along the grain of 10.1N/mm and the elastic modulus of 11000N/mm) in a form of 5-layer spliced plates, the process flow is shown in figure 3, the adhesive is made of building structure type adhesive (PUR adhesive), the weather resistance is excellent, and the tension-string wooden beam is suitable for being used in environments with the relative air humidity of the environment being always greater than 85% under the condition of being completely exposed to the atmosphere, such as large stadiums, swimming pools and the like. The two ends of the beam string are fixed on the concrete building main body by metal parts. After the wood beam is processed, the elasticity modulus can reach 9245Mpa, the maximum fracture, the load is higher than 26.22KN, the bending strength reaches 45N/mm, the shear strength of the glue line is 12.89N/mm, the fire resistance limit of the fire-proof inspection of the Sichuan fire station reaches 1.5 hours, and the design technical requirement of the bearing wood beam with the span of 30 meters is met.

Claims

1. The utility model provides a 30 meters span bears a string wooden beam layout structure which characterized in that: the main body of the beam string wood beam is an ultra-long arc beam, one oblique beam is used for supporting under each beam string, one end of each oblique beam is fixed on the building main body, the other end of each oblique beam is fixedly connected with the beam string by a metal piece connecting mechanism, every two beam string beams with the distance of 1m are respectively connected with a cross beam with the length of 170 multiplied by 400 multiplied by 800mm at the positions 6.684m and 24.684m away from one end, a V-shaped metal supporting rod with the height of 1.8m is respectively arranged, a cross beam with the length of 170 multiplied by 400 multiplied by 800mm is connected at the positions 12.684m and 18.684m, a V-shaped metal supporting rod with the height of 2.5 m is respectively arranged, and a zipper with the length of phi 48mm is used for supporting under.

2. The 30m span load-bearing tension string wooden beam layout structure of claim 1, characterized in that: the metal piece connecting mechanism is formed by slotting the joint of the beam string and the oblique beam, internally arranging a 10mm thick steel plate, perforating on the steel plate, perforating the hole with the diameter of 20mm and the distance of 80mm, perforating on the wood beam at the corresponding part, and connecting and fixing by using a stainless steel pin with the diameter of 20 multiplied by 200 mm.

3. The 30m span load-bearing tension string wooden beam layout structure of claim 1 or 2, characterized in that: the beam string specification is: 200 mm. times.600 mm. times. 30.684 m.