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method of bridge expansion joint

author: Jianfeng Engineering from: ԭ date: 2017/10/3 18:00:00 hit: 6761
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Construction technology and method of bridge expansion joint:

construction technology and methods

In the surface layer of asphalt concrete paving completed, expansion joints are used after the block construction method, construction technology and methods are as follows: in the surface layer of asphalt concrete paving completed, expansion joints are used after the block construction method,

The construction technology and methods are as follows:

marking, cutting, marking, deck and asphalt concrete paving is completed, about cutting machine cutting. The asphalt concrete paving is completed, according to the reserved slot width or notch wide on each side about 5cm for cutting machine cutting.

on the basis of the actual bridge abutment (pier) at the center of the expansion joint line, then anti size to both sides according to the design requirements, from the joint center according to the actual abutment joints (the center line, and then back to the size of both sides according to the design requirements of line to the desired width on both sides of the pop-up construction, should pay attention to changes in line width abutment to both sides the pop-up construction required width (uniform design 60cm), we should pay attention to changes of abutment width; the line should be straight, to pay attention to changes of abutment width; the line should be straight, uniform width. Then use concrete cutting machine by drawing a line on the asphalt pavement joint cutting to ensure cutting; seam position, widthThe degree of consistency. Then use the concrete cutting machine by drawing a line on the asphalt pavement joint cutting; to ensure the cutting position, the painting line on Asphalt Pavement of the slit size accurate, vertical, straight, no defect. Accurate size, vertical, straight, no defect. The step of construction use "the two cut construction method at the cutting edge, the step of construction using the two slit method construction. The first time slot according to the construction requirements of variable line anti 5cm inward edge, the slit extends two times. The construction method of shrinkage after installation for detecting flatness, two slit to the requirement of crack width, to ensure the cutting edge of the order.After the device is installed, it is based on the detection of flatness, and then the two cut to the required seam width, so as to ensure the cutting edge of the cutting edge.

The use of air compressor with artificial expansion joints of asphalt pavement and concrete temporary hardening were removed and clean, and the use of air compressor with artificial notch on the expansion joint of asphalt pavement and concrete temporary hardening were removed and clean, the surface of the concrete cutting hair, the use of air compressor pipe blowing slag powder; the surface of the concrete cutting hair, the use of air compressor pipe blowing slag powder; and other sundries clip between Liang Tifeng to clean up the guarantee of the beam. The gap between the outer layer of pavement on attention to take protective measures to eliminate and prohibit destruction, the guarantee of the beam between the gap. On the pavement outside to take protective measures to eliminate and damage is strictly prohibitedEnsure, tidy corner and straight. Straight. In order to avoid the pollution of deck asphalt concrete, are the end of the color of the cloth paste in the bridge, the whole bridge layout, in order to avoid the pollution of asphalt concrete deck, we end paste the color of the cloth in bridge, the whole bridge layout, the width is 2m, the other end of the color of the cloth with wide tape the other end of the color of the cloth glued edge. Using wide adhesive tape glued edge.

  

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