Spring damping energy dissipation and vibration reduction beam string structure, roof system and construction method

A technology of spring damping and spring damper, which is applied to girders, joists, roofs, etc., can solve the problems of large tension jack travel, high equipment requirements, and complicated equipment, so as to ensure installation stability and compensate for the reduction of cable force , to avoid the effect of fatigue damage

Active Publication Date: 2022-03-01
SHANDONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the construction and installation of string beam structures, large tension jacks are usually used for tensioning the lower string cables, which requires high equipment and difficult control of tensioning precision, especially for large spans Tension string beam structure, the stroke of the tension jack is large, and the equipment is more complicated
At the same time, the lower string cable is a flexible structure. Under the action of wind and vibration load, the vibration amplitude is large, which affects the structural performance and fatigue damage.

Method used

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  • Spring damping energy dissipation and vibration reduction beam string structure, roof system and construction method
  • Spring damping energy dissipation and vibration reduction beam string structure, roof system and construction method
  • Spring damping energy dissipation and vibration reduction beam string structure, roof system and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0048] This embodiment provides a spring-damped energy-dissipating vibration-damping string beam structure, such as figure 1 and figure 2 As shown, it includes upper run beam 1, damping strut assembly and stay cable 3, the stay cable 3 is connected between the two ends of the upper run beam 1, and a plurality of damping stay assemblies are arranged at intervals along the length direction of stay cable 3, and the damping stay assembly is connected In the tension area formed by the top run beam 1 and the stay cable 3.

[0049] Specifically, the damping strut assembly includes a strut 2 and a spring damper 4 , the strut 2 is a standard strut, one end of the strut 2 is hinged to the upper string 1 , and the other end of the strut 2 is connected to the spring damper 4 . As shown in Figure 3(a) and Figure 3(b), the strut 2 includes a steel pipe main body 22, a connecting plate 21 connected to one end of the steel pipe main body 22, and an end plate 23 connected to the other end of...

Embodiment 2

[0065] This embodiment provides a spring-damped energy-dissipating and vibration-reducing string beam structure, which differs from Embodiment 1 in that the arrangement of springs 44 is different, as shown in Figure 4(b) and Figure 5(c), the second flange A plurality of springs 44 are connected between the disk 441 and the end plate 422 , and four or more springs 44 are distributed along the circumferential direction of the second flange 441 .

[0066] Other structures are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0068] This embodiment provides a construction method for a spring-damped, energy-dissipating, and vibration-reducing tensioned string beam, using the stringed beam structure described in Embodiment 1 or Embodiment 2, including:

[0069] A. Assemble the upper string beam 1 on the temporary support frame.

[0070] B. The damping strut assemblies are sequentially connected at the corresponding positions of the upper string 1 , and the lengths and bearing capacities of the damping strut assemblies at different positions of the upper string 1 are different.

[0071] C. Connect one end of the cable 3 with the cable node at one end of the upper string beam 1, and then connect with the splint node 48 at the lower end of the spring damper 4 in turn, and finally connect the other end of the cable 3 with the cable at the other end of the upper string beam 1 node connection.

[0072] D. First construct the damping strut assembly in the middle position. Connect the oil outlet pipe of th...

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Abstract

The invention discloses a spring damping energy-dissipation vibration-reduction beam string structure, a roof system and a construction method, and belongs to the field of constructional engineering, the spring damping energy-dissipation vibration-reduction beam string structure comprises an upper beam string, damping supporting rod assemblies and an inhaul cable, the two ends of the inhaul cable are correspondingly connected with the two ends of the upper beam string respectively, a tensioning area is formed between the inhaul cable and the upper beam string, and the multiple damping supporting rod assemblies are distributed in the tensioning area at intervals; the damping supporting rod assembly comprises a supporting rod and a spring damper which are connected into a whole, one end of the supporting rod is connected with the upper chord beam, and one end of the spring damper is connected with the inhaul cable. According to the damping supporting rod assembly, tensioning of the inhaul cable can be achieved by lengthening the supporting rod in the installation stage of the beam string structure, and in the normal use stage, the spring damping energy-dissipation vibration-reduction supporting rod can dissipate vibration energy, reduce the amplitude of the inhaul cable, prevent structural fatigue damage and improve the comfort of the beam string structure.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a spring-damped, energy-dissipating, vibration-reducing tension string beam, a roof system and a construction method. Background technique [0002] The string beam structure is mainly composed of upper string beams, struts and lower string cables, and the lower string cables are made of high-strength steel strands. The tensioned lower chord cables provide support to the upper chord beam through the struts, which reduces the span and deformation of the upper chord beam, improves the bearing capacity of the upper chord beam, and reduces the amount of materials used. The structure is light and beautiful, and it is mainly used in large-span gymnasiums, exhibition halls, airport terminals, railway station waiting halls, platform canopies, etc. [0003] During the construction and installation of string beam structures, large tension jacks are usually used for tensioning the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/11E04C3/10E04B1/98E04H9/02E04B7/00E04G21/14E04G21/12
CPCE04C3/11E04C3/10E04B1/98E04H9/021E04B7/00E04G21/14E04G21/12
Inventor 于彬成刘梅王晓波王祈帅李京伟张文超闫蒙刘畅孙守东王晓坤
Owner SHANDONG UNIV
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