Elastomeric Reset Mount

Elastic ball hinge support/slide support, how to install and maintain? Hengshui Tongxiang Bridge Hardware Co., Ltd. boasts a team of high-quality management and technical personnel, as well as a proficient marketing and after-sales service team. Equipped with advanced testing and production facilities, the company's scientific and reasonable manufacturing process guarantees product quality. The company strictly adheres to the quality system, ensuring stable and reliable product quality.

Elastic Pivot Mount/Sliding Mount

1. Elastic ball pivot mount/slide support's main technical performance

1 Elastic ball hinge support/slide support, capable of bearing vertical loads.

2. Features considerable vertical uplift resistance, ensuring the upper and lower structures do not disconnect under vertical uplift and can normally rotate.

3. Elastic ball hinge supports/slide supports have the performance of resisting horizontal shearing force, ensuring they do not detach when subjected to horizontal loads.

4. Elastic ball hinge supports/slide supports can meet horizontal displacement requirements.

5. Versatile for omnidirectional rotation and load-bearing.

6, The bracket is made of alloy cast steel, fully meeting the engineering service life requirements.

Second, design basis for elastic ball hinge support/slide support

Design Code: GB50017-2003 "Code for Design of Steel Structures"

2. National Standard: GB/T17955-2009 "Bridge Ballastless Support"

3, Traffic Standards: JTGD62-2004 "Design Specifications for Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts"

4, Architectural Design Standards: GB5001-2001 "Code for Seismic Design of Buildings."

Three, Design Parameters for Elastic Ball Pivot Support/Sliding Support

1, The vertical pressure of the supports is divided into 300KN, 500KN, 1000KN, 1500KN, 2000KN, 2500KN, 3000KN, 4000KN, 5000KN, 6000KN, 7000KN, 8000KN, 9000KN, and 10000KN.

2, The vertical uplift resistance of the support should be within 50% of its vertical load.

3. The horizontal shear resistance of the support is taken as 30% to 40% of the vertical load.

4. Elastic ball pivot/slip seat design with a turning angle of 0.02 rad, which can also be adjusted to a corresponding design within the range of 0.02 to 0.08 rad based on actual conditions.

5. The displacement-type support sets its corresponding displacement range to ±60~±100 according to its displacement form, which can also be customized according to actual requirements.

6, Elastic ball hinge/slide bearing support with sliding friction coefficient u ≤ 0.03 (-25°C ~ 60°C).

Four, things to note when selecting elastic ball hinge supports/slide supports:

When selecting elastic ball hinge supports or sliding supports, pay attention to the bearing capacity, the magnitude of the vertical tensile force, the magnitude of the horizontal force, and note the displacement and rotation angle. For shock-absorbing supports, also pay attention to the horizontal elastic stiffness.

When selecting elastic ball hinge supports or sliding supports, pay attention to the type of the support, i.e., bidirectional, unidirectional, or fixed.

3. Elastic ball hinge and sliding hinge supports are both provided with displacement and stiffness constraints for the need of engineering vibration reduction.

Five, Installation of Elastic Ball Pivot Support/Sliding Support

1. Mounting scheme for the bracket, the connection type should be specifically agreed upon with the structural designer to ensure reliable connection and functionality between the upper and lower structures and the bracket.

The grade of the concrete filled steel column in the lower section must not be lower than C40.

The reinforcement within the column should refer to the research and analysis results from the design of this support, specifically within a height range of 0.25b to 0.6b along the column axis from the top of the column to the column base (where b is the width of the column section), increasing the configuration of the horizontal stirrup cross-section, with the amount determined by the bearing capacity analysis results.

4. Elastic ball hinge or sliding support is set with an offset value between the upper support plate and the sliding plate according to design requirements.

If the connection between the bracket and the embedded steel plate is焊接, cooling measures must be taken, or use intermittent welding along the edges to prevent overheating of the bracket steel components, which could damage the polytetrafluoroethylene plate, rubber sealing rings, and 5201 silicone grease.

Before installing the elastic ball hinge or sliding support, ensure that the elevation and levelness of the lower structure meet the design requirements. The difference in height at the four corners of the support should not exceed 1mm.

7. The centerline of the support should align with the centerline of the main beam and the installation line of the lower structure.

After the bracket is installed, the base plate should be welded to the embedded steel plate to meet the design requirements. Once the beam construction is completed, the temporary connectors should be removed immediately.

Ensure the upper and lower bracket plates are properly connected during installation of the elastic ball hinge bracket/slide bracket. Remove them after the bracket is properly positioned, and immediately install the dust cover (the dust cover is made of rubber and is installed by the on-site construction unit).

Six, maintenance of elastic ball hinge supports/slide supports

1. Regularly inspect and maintain the elastic ball hinge or sliding bearing during use.

Check for any damage to the bracket and its upper and lower connecting parts, inspect if the bolts are sheared or loose, and if the welds are cracked, etc.

Check and clean the dust cover inside, removing any accumulated dust.

4, Inspect rubber seals for cracking and aging.

5, Rotate the fixed nut, clean it thoroughly, and re-oil it to prevent rusting.

6, Inspect the height variation of the elastic ball hinge or sliding support itself, as this variation reflects the wear condition of the PTFE plate. A major repair should be conducted when the height variation exceeds 4mm.

Inspect the integrity of the rust-proof paint; if any paint is peeling, sand the steel surface to reveal the metal sheen and repaint it.

8, In the event of special circumstances for elastic ball hinge supports/slide supports, such as earthquakes or destructive strong winds, it is necessary to promptly inspect the aforementioned contents.

Above is a simple introduction to the spherical hinge bearing. For any inquiries, please call to consult.

Contact: Manager Ma  15933830777