Construction method of pull rod expansion screw bolt post embedding wall lacing wire
A technology of expansion bolts and construction methods, which is applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of lack of on-site processing conditions, long processing cycle, and increased transportation volume, and achieve convenient inspection, reliable installation quality, and low cost. cheap effect
Active Publication Date: 2010-09-08
CHINA CONSTR SIXTH ENG DIV CORP +1
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Problems solved by technology
The disadvantage is that there are currently no finished products on the market for sale, and at the same time, there is no on-site processing conditions. When ordering off-site processing, all the tension bars need to be manufactured and transported to the factory for processing, and then transported to the construction site for use. The transportation volume increases. , while the sleeve needs to be customized
Long processing cycle
Method used
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Embodiment 1
[0029] Use an impact drill or an electric hammer to drill a 65mm deep Φ16 hole on the concrete structural column 9, clean the scum and dust in the hole with a brush and an air bag, put the tie rod expansion bolt 8 into the hole, and then pull the Φ6 wall The tendon 7 is inserted into the countersunk head hollow bolt rod 1 of the tie rod expansion bolt 7 and the anchor end of the wall tie bar 7 protrudes ≥ 20mm. The torque nut 5 drives the countersunk head hollow bolt rod 1, and the force is applied through the spring washer 4 and the flat washer 3. It is transmitted to the expansion tube 2, and the expansion tube 2 compresses the gap 6 of the countersunk head hollow bolt rod 1, so that the thread of the inner cavity wall of the countersunk head hollow bolt rod 1 and the wall tie bar 7 are tightly hugged, and the nut 5 is continued to be twisted Drive the countersunk head of the countersunk head hollow bolt rod 1 to expand the expansion tube 2 and the concrete structure column 9...
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The invention discloses a construction method of a reinforcing bar of a tie expansion bolt post-planted wall, which comprises the following steps: (1) after the completion of the construction of a concrete structure, a hole is drilled on the concrete structure according to the designing requirement; (2) the drilled hole is cleaned, a tie expansion bolt is inserted into the hole, and the wall reinforcing bar is inserted into a countersunk hollow bolt shank of the tie expansion bolt so as to lead the exposure of the anchor end to be more than or equal to 20mm; and (3) a nut of the tie expansionbolt is screwed so that pores between the wall reinforcing bar and the tie expansion bolt, as well as pores between the wall reinforcing bar and the concrete structure, are expanded into a whole. On the premise of ensuring quality, the construction method can utilize steel bar processing machinery to process the wall reinforcing bar, and the installation of the wall reinforcing bar requires only an electric drill or an electric hammer, a hand hammer, a brush and an open spanner, thus having simple operation.
Description
technical field [0001] The invention relates to a method for embedding tie reinforcement bars between a concrete structure and a rear wall during building construction, in particular to a construction method for tie rod expansion bolts rear wall reinforcement construction. Background technique [0002] The commonly used wall reinforcement construction methods in existing building construction are: [0003] 1 Pre-embedded in the concrete structure [0004] 1.1 Pre-embedded tension bars directly in the concrete structure [0005] In the method, in the construction process of the main concrete column wall, the tie bars of the post-built wall body and the concrete structure are embedded in the column wall concrete in advance, and the wall tie bars are removed after the concrete formwork is removed. This method has a certain impact on the force of the concrete structure during the chiseling process, especially on the visual quality; at the same time, the pre-embedded steel bars...
Claims
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IPC IPC(8): E04B1/41F16B13/06
Inventor 王存贵余流张云富郭建东王文彪王丽梅杨健民
Owner CHINA CONSTR SIXTH ENG DIV CORP