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Construction method for using prestressed glass fiber cloth to reinforce wood beam

A technology of glass fiber cloth and construction method, which is applied in the direction of joists, girders, truss beams, etc., and can solve the problems of weak control of the deflection of structural members and low utilization rate of glass fiber cloth strength

Active Publication Date: 2013-09-25
邳州东博信息技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] The outstanding problem of the method of reinforcing wooden beams with glass fiber cloth externally is that the actual strength utilization rate of glass fiber cloth is not high, and the control effect on the deflection of structural members is not strong

Method used

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  • Construction method for using prestressed glass fiber cloth to reinforce wood beam

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Embodiment Construction

[0024] The present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0025] figure 1 Schematic diagram of the construction of a wooden beam reinforced with prestressed glass fiber cloth. In this embodiment, the glass fiber cloth 7 is arranged at the bottom of the wooden beam 10, and the positioning bearing 1 is arranged at the inner corner where the wooden column 11 and the wooden beam 10 are handed over. The positioning bearing 1 has a rolling pulley to prevent the glass fiber cloth 7 from shifting during the stretching process. The glass fiber cloth 7 is turned down along the wooden column 11, and the length of the downturn is 250mm. The fixed anchorage 2 is set at the position 280mm below the top of the wooden column 11, and the fixed anchorage 2 is provided with a slot. The glass fiber cloth 7 is extended into the slot and then folded back and fixed. Anchor 2 is fixed on fixed anchor 2 with anchor bolt 3 after being compacted wi...

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Abstract

The invention discloses a construction method for using prestressed glass fiber cloth to reinforce a wood beam. The construction method is characterized in that the glass fiber cloth is arranged at the bottom of the wood beam, a positioning bearing is arranged at the internal corner where a wood column and the wood beam are connected and provided with a rolling pulley to prevent displacement of the glass fiber cloth in the process of stretching, the glass fiber cloth is turned downwards along the wood column, the downward-turning length is 200-300mm, a fixing anchor is arranged at a position 260-300mm below the top of the wood column and provided with an inserting groove, the glass fiber cloth extends into the inserting groove, then returns to wrap the fixing anchor and is compressed by using a rubber pad to be fixed on the fixing anchor by using an anchor bolt, a guide rail is arranged between the fixing anchor and the wood column, the fixing anchor is connected with a center hole jack through a force-transmitting pull rod, and a counter-force frame made of channel steel is arranged below the center hole jack.

Description

technical field [0001] The invention relates to a wooden beam, in particular to a construction method for reinforcing a wooden beam with prestressed glass fiber cloth. Background technique [0002] The prominent problem of the method of strengthening wooden beams with glass fiber cloth externally is that the actual strength utilization rate of glass fiber cloth is not high, and the control effect on the deflection of structural members is not strong. This phenomenon is essentially that the glass fiber cloth has high strength, but its elastic modulus is relatively low, and its strength can only be fully exerted when a large deformation occurs. If the glass fiber cloth reaches the deformation of fully exerting its strength, the deflection of the reinforced wooden beam often exceeds the limit value of the normal service limit state, which is not allowed in actual engineering. How to give full play to the strength advantages of glass fiber cloth and further improve the reinforc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04C3/29
Inventor 叶香竹
Owner 邳州东博信息技术有限公司
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