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Concrete connected silo reinforcing structure and method

A technology for strengthening structures and concrete, which is applied in the direction of building construction, building maintenance, building types, etc., can solve the problems of multiple steel strand materials, improve bearing capacity and crack resistance, ensure structural durability, and have good reinforcement effects Effect

Pending Publication Date: 2020-06-05
江苏新筑同创土木工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention uses grouped steel strands, consumes more steel strand materials, and can only be applied to single silos

Method used

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  • Concrete connected silo reinforcing structure and method
  • Concrete connected silo reinforcing structure and method
  • Concrete connected silo reinforcing structure and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 The case of two silos conjoined is shown, with only one contact. A reinforced concrete silo structure in this embodiment includes prestressed tendons 100 and anchors 500 .

[0046] combine Figure 6 , 7 , 8, the contact portion 700 of the silo wall 600 of two adjacent silos is provided with a main hole 300 and a secondary hole 400, the main hole 300 is a through hole penetrating the contact portion from the tangential direction of the silo wall, and the secondary holes 400 are two groups , are arranged on both sides of the main hole 300, and in each group, there are two secondary holes 400 which are respectively arranged at both ends of the main hole 300, and the secondary holes communicate with the main hole.

[0047] combine figure 1 , taking the upper silo as an example, the prestressed tendon 100 surrounds the silo wall of one of the silos, the left end of the prestressed tendon passes through the secondary hole, the main hole, and the secondary hole fr...

Embodiment 2

[0052] figure 2 Shown is the case of three silos connected side by side, the silo in the middle forming two contacts with the adjacent silos.

[0053] The arrangement of the prestressed tendons of this embodiment can be the same as that of Embodiment 1, and a prestressed tendon 100 is passed through the secondary hole and the main hole of the two contact parts 700, and finally the end of the prestressed tendon is contacted. For example, the prestressed tendon directly passes through the hole of one of the contact parts, and the two ends are tensioned and anchored by the anchor in the main hole of the other contact part.

[0054] Since there are two contact parts, it is not convenient to use a prestressed tendon to penetrate the holes of the two contact parts. This embodiment can also use figure 2 The way shown in , that is, the prestressed tendons are divided into two sections, namely the first prestressed tendons 210 and the second prestressed tendons 220, and the two cont...

Embodiment 3

[0057] Figure 4 A situation in which 6 silos are connected is shown, wherein the two silos in the middle form 3 contact portions with the surrounding silos respectively.

[0058] For a silo with three contacts, three types of anchoring are possible. (1) Adopt the anchoring form of Embodiment 1, that is, use a prestressed tendon to surround the warehouse wall and be tensioned and anchored by the anchor. (2) adopt Figure 4 In the anchoring form shown, the three contact parts (401, 402, 403) divide the warehouse wall into three sections, including two 1 / 4 arcs and one 1 / 2 arc, using three sections of prestressed tendons, respectively Two fourth prestressed tendons 240 and one third prestressed tendon 230, the length of the fourth prestressed tendon 240 is greater than 1 / 4 of the outer perimeter of the warehouse wall, and the length of the third prestressed tendon 230 is greater than 1 / 4 of the outer perimeter of the warehouse wall 1 / 2, the three sections of prestressed tendo...

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Abstract

The invention discloses a concrete connected silo reinforcing structure and method, and belongs to the field of concrete connected silo structure reinforcement. The concrete connected silo reinforcingstructure comprises a prestressed tendon and an anchor device, wherein a connected silo comprises a plurality of silos; holes are formed in a contact part of the adjacent silos, and comprise a main hole and sub holes; the main hole is a through hole penetrating through the contact part in the tangential direction; the sub holes are divided into two groups and are respectively formed in two sidesof the main hole; each group of sub holes comprises two sub holes which are respectively positioned at two ends of the main hole and respectively communicate with the main hole; the prestressed tendonsurrounds the outer wall of the silo; and the two ends of the prestressed tendon respectively pass through the holes formed in the contact part and positioned at one side of the silo and are tensioned and anchored by the anchor device arranged in the main hole of the located contact part of two ends of the prestressed tendon. An original structure cannot be damaged; the stress is reasonable and clear; the reinforcement durability is effectively guaranteed; a mortar or concrete layer is not needed on the outer surface of the silos after reinforcement; the reinforcement construction period is short; the cost is low; and the popularization and the use are convenient.

Description

technical field [0001] The invention relates to the field of structural reinforcement of concrete connected silos, in particular to a reinforcement structure and method for concrete connected silos. Background technique [0002] Concrete conjoined silo structures are widely used in grain, cement, electric power, and metallurgical industries. Due to design and construction defects or improper use, vertical cracks that are difficult to close are often caused by the warehouse wall, which affects the structural safety and service life. The difference from the single silo structure is that the difficulty of strengthening the conjoined silo structure is that the conjoined parts cannot bear the hoop tension and the reinforcing steel bars are difficult to pass through. Therefore, traditional reinforcement methods such as enlarging the section of the silo wall and reinforcing by wrapping carbon fiber cloth on the outside , reinforcement methods such as local prestressing are difficu...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04G21/12E04H7/26
CPCE04G21/121E04G23/0218E04G23/0225E04H7/26
Inventor 周先财龚斌文栾文彬
Owner 江苏新筑同创土木工程有限公司
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