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High-precision quickly-installation cable bent tower stiff framework and construction method

A rigid skeleton and high-precision technology, which is applied to the rigid skeleton of high-precision and rapid installation and the construction field, can solve the problems of overall skeleton stability, skeleton position deviation, and large environmental impact that affect construction efficiency, and achieve construction quality. Easy to control, improve stability and bearing capacity, reduce the effect of construction period

Pending Publication Date: 2021-09-24
中交投资南京有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the deviation of the position of the skeleton due to welding deformation during the installation of the existing rigid skeleton unit, which affects the construction efficiency and the stability of the overall skeleton; when the rigid skeleton is installed, the line hammer is used to measure the inclination, which has low accuracy and is greatly affected by the environment question

Method used

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  • High-precision quickly-installation cable bent tower stiff framework and construction method
  • High-precision quickly-installation cable bent tower stiff framework and construction method
  • High-precision quickly-installation cable bent tower stiff framework and construction method

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specific Embodiment approach 1

[0049] Specific implementation plan one: combine Figure 1 to Figure 3 As shown, the present invention provides a high-precision and fast-installed cable tower stiff framework, including a stiff framework unit 8 and a connecting piece 5, and two adjacent stiff framework units 8 are connected by several connecting pieces 5, so The rigid frame unit 8 includes an inner frame 2 and an outer frame 1, the inner frame 2 and the outer frame 1 are connected by connecting cross bars 3, and the inner frame 2 and the outer frame 1 each include several frame columns 4 and several Skeleton flat connection 6, the skeleton flat connection 6 is arranged horizontally and is used to connect several skeleton columns 4, the part where the two ends of the skeleton column 4 extend out of the skeleton flat connection 6 is a reserved section 7, and the adjacent two stiffeners The reserved sections 7 of the skeleton columns 4 corresponding to the skeleton units 8 are connected by connecting pieces 5 . ...

specific Embodiment approach 2

[0058] Specific implementation plan two: combine Figure 4 As shown, the connecting piece 5 is a sleeve 51 with threads on the inner wall, and the outer wall of the reserved section 7 is provided with threads, and both ends of the sleeve 51 are respectively threaded with the reserved section 7 . During installation, one end of the casing 51 is connected to the lower stiff frame unit through a threaded part, and the frame column 4 of the lower stiff frame unit is screwed into the casing 51 at the same distance, and then the reserved section 7 at the lower end of the upper stiff frame unit is Correspondingly, the other end of the sleeve 51 is clamped, and the sleeve 51 is rotated at the same time without displacement of the upper stiff skeleton unit and the lower stiff skeleton unit, so that the reserved section 7 is screwed into the sleeve 51, To achieve the purpose of connection. Since the bushing 51 is uniformly prefabricated according to the design scheme, the dimensions ar...

specific Embodiment approach 3

[0059] Specific implementation plan three: combination Figure 4 As shown, the connecting piece 5 is a vertical bushing or a bent bushing, which is used to adjust according to the bending angle of the pylon. The other combinations and connections of this embodiment are the same as those of the second embodiment.

[0060] Specific implementation plan four: combination Figure 5 and Figure 6 As shown, the connecting piece 5 is a connecting column 52 provided with threads on the outer wall, and the port of the reserved section 7 is provided with a connecting platform 71. The reserved section 7 is a tubular structure, and the inner wall of the reserved section 7 is provided with threads , two adjacent reserved sections 7 are connected to the connecting column 52 through threads, and two adjacent connecting platforms 71 are connected through high-strength bolts 72 . During installation, one end of the connecting column 52 is screwed into the reserved section 7 of the skeleton c...

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Abstract

The invention provides a high-precision quick-installation cable bent tower stiff framework and a construction method, and belongs to the technical field of stiff skeletons and construction methods. The problems that when an existing stiff skeleton unit is installed, the skeleton position deviates due to welding deformation, and the construction efficiency and the overall skeleton stability are affected are solved; when the stiff skeleton is installed, the inclination is measured by using a plumb bob, the accuracy is low, and the environmental influence is large. The high-precision quick-installation cable bent tower stiff framework comprises stiff skeleton units and connecting pieces, and reserved sections of corresponding skeleton stand columns of every two adjacent stiff skeleton units are connected through the corresponding connecting pieces. When the stiff skeleton units are installed, the stiff skeleton units are hoisted through a crane tower, the slope of the stiff skeleton units is adjusted through a slope meter to conduct preliminary positioning, and then splicing is performed. Through connection of the connecting pieces, deformation in the welding process is avoided, the stability and the construction efficiency are improved, the slope instrument is low in influence of environmental factors, the stability and the bearing capacity of the whole cable bent tower are improved, and the construction efficiency and the construction quality are further improved.

Description

technical field [0001] The invention relates to the technical field of a cable tower stiff frame and a construction method thereof, in particular to a high-precision and fast-installed cable tower stiff frame and a construction method. Background technique [0002] Cable-stayed bridge is a kind of cable system. The cable-stayed bridge has a greater spanning capacity than the girder bridge. It is the most important type of long-span bridge. Stayed bridges are mainly composed of cable towers, main girders, and stay cables. The types of cable towers include A-type, inverted Y-type, H-type and single columns. They are constructed of steel and concrete. surface, slope surface, etc. The cable-stayed bridge structure is a high-order statically indeterminate structure in mechanics, and it is the most complex structure in all bridge types. Due to the difference in the cable force of the stay cables and the difference in the construction method, the final stress state of the complet...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D19/14E01D11/04E01D21/00
CPCE01D19/00E01D19/14E01D11/04E01D21/00
Inventor 蒋太平张大庆牟阳姜华韦艳波
Owner 中交投资南京有限公司