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Post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and construction method

A post-tensioning prestressing and prestressing technology, which is applied to building components, truss structures, and earthquake resistance, can solve problems such as low structural robustness, high cost of energy-consuming steel bars, and difficulty in transportation and hoisting. Difficulty, good seismic performance, and the effect of improving the level of green construction

Pending Publication Date: 2017-12-12
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a post-tensioned prestressed assembled concrete frame anti-seismic energy-consuming component system and construction method. On the premise of ensuring better anti-seismic performance, it is necessary to solve the problems of difficult transportation and hoisting and structural problems existing in the existing structural system. Low robust performance, large amount of wet work, complex construction, high cost of post-earthquake repair of column feet, high cost and complicated production of energy-dissipating steel bars in beams

Method used

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  • Post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and construction method
  • Post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and construction method
  • Post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and construction method

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Embodiment 1

[0075] Example 1, such as Figure 10 and 11 As shown, the anti-seismic energy dissipation component is an anti-seismic wall 3; the anti-seismic wall 3 includes a shear energy dissipator 3.2 and a shear wall 3.3; the shear wall 3.3 is integrally formed, and the The bottom of the body 3.3 is provided with vertical sleeves 3.1 at intervals, and the bottom of the shear wall 3.3 and the laminated main beam 4 below it or between the shear wall 3.3 and the foundation 1 are connected by grouting through the vertical sleeve 3.1; The shear-type energy dissipator 3.2 is installed on the top of the shear wall 3.3, and connects the shear wall 3.3 with the laminated girder 4 above it; in other embodiments, the bottom of the shear wall 3.3 is connected to the The laminated main girders 4 below or between the shear wall body 3.3 and the foundation 1 can also be connected by dry connectors 14 .

[0076] In this embodiment, the dry connector 14 is a bolt connection.

[0077] In this example,...

Embodiment 2

[0095] Example 2, such as Figure 14 As shown, when the anti-seismic energy-dissipating member in this embodiment is a buckling-constrained steel support 11; the steel support 11 provides lateral stiffness for the structure under frequent earthquakes, and provides structure for the structure under fortification earthquakes or rare earthquakes. In terms of energy dissipation capacity, the shape of the steel support 11 can be human-shaped or V-shaped or W-shaped.

[0096] The construction steps of the post-tensioned prestressed assembled concrete frame anti-seismic energy-dissipating component system in this implementation example are as follows.

[0097] Step 1, producing prefabricated components in the factory, including producing frame columns 2, precast concrete main beams 4.1, precast hollow slabs 5.1, precast concrete secondary beams 6.1 and steel supports 11; the frame columns 2 and precast concrete main beams 4.1 are buried There are node connecting plates 15 for connec...

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Abstract

A post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and a construction method are disclosed. The concrete frame anti-seismic and energy-consuming component system comprises a foundation, frame columns, composite main beams, anti-seismic and energy-consuming components and composite floor slabs. The frame columns are arranged in a layered mode, concrete connection layers are poured between the frame columns of the adjacent upper layers and the lower layers, the composite main beams comprise prefabricated concrete main beams and main beam concrete composite layers, and the composite floor slabs comprise prefabricated hollow slabs and floor slab concrete composite layers cast in situ at the tops of the prefabricated hollow slabs; and prestressing steel tendons are post-tensioned prestressing steel tendons and comprise prestressing steel tendon sticking sections and prestressing steel tendon no-sticking sections, the prestressing steel tendon sticking sections are arranged on the position of the midspans of the prefabricated concrete main beams, and the length of each prestressing steel tendon sticking section is 2-3 m. According to the post-tensioned prestressing assembling concrete frame anti-seismic and energy-consuming component system and the construction method, the technical problems that the transporting and hoisting difficulty of an existing structural system is high, the structure robust performance is not high, the wet working amount is large, the column base rehabilitation cost is high after an earthquake, and the cost is high and manufacturing is complex because energy-consuming reinforcing steel bars are arranged in the beams are solved.

Description

technical field [0001] The invention belongs to the field of assembled concrete structure buildings, in particular to a post-tensioned prestressed assembled concrete frame anti-seismic energy-consuming component system and a construction method. Background technique [0002] At present, most of the prefabricated concrete structures used in the domestic civil construction field are prefabricated integral structural systems, mainly including prefabricated integral frame structures, prefabricated integral frame-cast-in-place shear wall structures, and prefabricated integral shear wall structural systems. These systems are cast-in-place in the beam-column joint area, which requires a large amount of wet work on site and low construction efficiency. In recent years, the United States and Japan have developed several prefabricated prestressed frame dry connection joints and systems that can be applied in civil buildings, but there are still some problems that need to be improved: ...

Claims

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Application Information

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IPC IPC(8): E04B1/22E04B2/56E04C3/26E04C3/34E04B5/17E04B1/98E04H9/02
CPCE04B1/22E04B2/56E04B2/562E04B5/17E04C3/26E04C3/34E04H9/021
Inventor 郭海山李黎明刘康王冬雁齐虎田力达耿娇范昕李明李桐谢永兰
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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