CN205000244U - A waterproof crack control structure for bridge stitches in succession - Google Patents

Abstract

The utility model relates to a waterproof and crack-proof structure for continuous joints of bridges. The bridge is spliced by several beams, beam end joints are formed between adjacent beams, and concrete pavement is arranged on the beams, which is characterized in that the beam end joints Insert the expansive water-stop rubber round strip into the water-stop rubber round strip, insert the pre-embedded bolts in reverse, fill the remaining space above the rubber round strip in the beam end seam with sealant, level the top surface of the beam with cement mortar, and paste it The rubber sheet is pressed with a galvanized steel sheet, and the galvanized steel sheet is provided with a reserved hole, and the reserved hole is correspondingly penetrated into a pre-embedded bolt, and the upper end of the pre-embedded bolt is used to fix the steel plate through a nut. The utility model enables the continuous seam to be effectively waterproof and crack-proof, and is more durable, and the materials required for the structure are all common building materials in the market without special manufacture, and the installation is simple and the construction is convenient.

Description

A waterproof and anti-crack structure for bridge continuous joints

technical field

The utility model relates to the technical field of bridge structure design, in particular to a waterproof and crack-proof structure for continuous joints of bridges.

Background technique

The prefabricated simply supported beam structure is simple in structure, convenient in construction, safe and reliable, and low in cost. It is a bridge structure with wide applicability. The use of the support beam structure, so solving the cracking and water seepage of continuous joints will bring huge social benefits. For this reason, a new type of waterproof and anti-crack structure for continuous joints has been designed and developed. Its structure is simple, convenient for construction, safe and reliable, low in cost and wide in applicability.

Utility model content

The purpose of the utility model is a waterproof and anti-crack structure for bridge continuous joints with simple installation and convenient construction.

In order to achieve the above object, the technical solution of the present utility model is: a waterproof and anti-crack structure for bridge continuous joints, the bridge is spliced by several beams, beam end joints are formed between adjacent beams, and concrete is set on the beams Pavement, which is characterized in that an inflatable water-stop rubber round bar is inserted into the beam end seam, and embedded bolts are inserted in reverse in the water-stop rubber round bar, and the remaining space above the water-stop rubber round bar in the beam end seam is filled with sealant , the top surface of the beam is leveled with cement mortar, and a rubber sheet is pasted, and the galvanized steel sheet is pressed on the rubber sheet. The galvanized steel sheet is provided with a reserved hole, and the reserved hole is correspondingly inserted into the embedded bolt, and the upper end of the embedded bolt is used to fix the steel sheet with a nut .

According to a preferred embodiment of the present utility model, the rubber round strip is inserted into a place 0.08-0.15m away from the top of the beam.

According to a preferred embodiment of the present invention, steel mesh is embedded within the range of 1-2m on both sides of the corresponding beam end joints in the concrete pavement, so as to further strengthen the stiffness of the concrete pavement at the continuous joints.

The waterproof and anti-cracking continuous seam structure of the utility model installs steel plates and steel mesh sheets at the continuous seam, which is more rigid than the traditional continuous seam, reduces the cracking of the continuous seam caused by wheel rolling, thereby reducing the infiltration of bridge deck water into the continuous seam; through Tighten the bolts, compress the rubber sheet on the top of the beam, and squeeze the sealant. The waterproof performance is better than that of the traditional continuous joint. Through the above several measures, the continuous joints can be effectively waterproof and crack-proof, and more durable. The materials required for the construction are all common building materials in the market, and no special preparation is required. The installation is simple and the construction is convenient.

Description of drawings

Figure 1 is a schematic diagram of the waterproof and crack-proof continuous seam structure.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

A waterproof and anti-crack structure for bridge continuous joints, the bridge is spliced by several beams 1, beam end joints are formed between adjacent beams, and concrete pavement 2 is arranged on the beams, which is characterized in that the beam end joints are plugged Insert the horizontal through-length expansion type water-stop rubber round strip 3, fill the remaining space above the rubber round strip 3 in the beam end seam with sealant, level the top surface of the beam with cement mortar, and paste the rubber sheet 5, and press-plate the rubber sheet 5 Zinc steel plate6. The sealant is a two-component polysulfide sealant 4, and the rubber sheet 5 is a rubber sheet with a width of 1.4 m and a thickness of 2 mm.

The waterproof and anti-crack continuous seam structure of the utility model is composed of three major parts. The first part is inserted in the beam end seam with a horizontal expansive expansion type water-stop rubber round strip 3, which is 0.1m away from the top of the beam, and the remaining gap above the rubber round strip 3 in the seam is filled with two-component polysulfide sealant 4 Full, wherein the diameter of the rubber round bar 3 is required to be wider than the beam end seam, the rubber round bar 3 is reversely inserted into the M8 hex head bolt 7, and the nut 8 faces upward. The second part is leveled with M10 cement mortar on the top of the beam, and then the 1.4m wide and 2mm thick rubber sheet 5 is glued with resin glue, and its center is aligned with the center of the seam; 180x250x8 galvanized steel plate 6 (Q235c) is pressed on the rubber sheet 5 ), horizontally side by side and full length, when installing, the reserved holes of the steel plate should be penetrated into the hexagon head bolt 7, and the nuts should be tightened to fix the galvanized steel plate 6; the third part is to embed Ф16 steel mesh (HRB400) in the concrete pavement 2, The range is 1.5m on both sides of the beam end joints to further strengthen the stiffness of the concrete pavement at the continuous joints. The top of the concrete pavement 2 is grooved 9 corresponding to the beam end seam, and a two-component polyurethane sealant 10 is embedded in the groove.

The waterproof and anti-cracking continuous seam structure of the utility model installs steel plates and steel mesh sheets at the continuous seam, which is more rigid than the traditional continuous seam, reduces the cracking of the continuous seam caused by wheel rolling, thereby reducing the infiltration of bridge deck water into the continuous seam; by tightening Bolts, compressed beam top rubber sheet, squeezed sealant, waterproof performance is better than traditional continuous joints; when a small part of water penetrates due to the aging of sealant, the rubber round strip expands with water to prevent water from passing through. Through the above several measures, the continuous joints can be effectively waterproof and crack-proof, and more durable. The materials required for the construction are all common building materials in the market, and no special preparation is required. The installation is simple and the construction is convenient. The steel plate covering the structural joints of the utility model forms a combined structure with reinforced concrete, which improves the crack resistance, and the steel plate can be closely attached to the top surface of the main girder (cover girder), which is convenient for construction.

Claims (4)

1. A waterproof and anti-crack structure for bridge continuous joints, the bridge is spliced by several beams, beam end joints are formed between adjacent beams, and concrete pavement is set on the beams, which is characterized in that the beam end joints are plugged Insert the expansion-type water-stop rubber round strip, insert the embedded bolts in the reverse direction, fill the remaining space above the water-stop rubber round strip in the beam end seam with sealant, level the top surface of the beam with cement mortar, and paste it The rubber sheet is pressed with a galvanized steel sheet, and the galvanized steel sheet is provided with a reserved hole, and the reserved hole is correspondingly penetrated into a pre-embedded bolt, and the upper end of the pre-embedded bolt is used to fix the steel plate through a nut. 2. A waterproof and anti-crack structure for bridge continuous joints according to claim 1, characterized in that: said rubber round strip is inserted into a place 0.08-0.15m away from the top of the beam. 3. A waterproof and anti-crack structure for bridge continuous joints according to claim 1, characterized in that: in the concrete pavement, steel reinforcement meshes are embedded in the range of 1-2m on both sides of the corresponding beam end joints. 4. A waterproof and anti-crack structure for bridge continuous joints according to claim 3, characterized in that: the top of the concrete pavement is slotted corresponding to the beam end joints, and the two-component polyurethane sealant is embedded in the slots .