Integral component stress diagram component stress diagram pin stress diagram what are the advantages of purlin corner connector? The purlin corner connector only needs to be connected by bolts in the construction process, and can be used as a standard part to enter the site at the same time with the purlin, which will not affect the construction period.

It can provide a large working surface for construction and is conducive to the installation and support of the surrounding purlin.

in summary, It: (1) the design theory complies with the relevant provisions of steel structure design standards; (2) the structure has high strength and small deformation after stress, which is suitable for turnover; (3) bolt connection is adopted to avoid material waste and save cost; (4) the angle adjustment range is wide, which can replace non-standard parts and be flexibly used in various complex projects; (5) It is easy to assemble and disassemble and can be reused, avoiding the waste of materials and cost of non-standard parts; (6) it can replace non-standard parts, speed up the construction progress and avoid the delay of construction period! Conscience research and development is the gospel of complex foundation pit steel support, who says not!..

The finite element analysis is carried out through ABAQUS for the stress of the corner connector of the surrounding purlin when the corner is 90 °, and the shear force of the corner member reaches 1500KN by applying concentrated force to the H400 steel beam in the model.

The corner connector of the surrounding purlin is a component that can realize repeated turnover.

Construction instructions for corner connectors of purlin 1 As shown in the figure, align one end of the corner connector of the purlin with the purlin on the ground, then connect the two with bolts with conventional bolt operation, and finally check whether all 8 bolts are connected in place.

It is a new member that can save materials, reduce waste, speed up the construction period, and has good compression and shear resistance.

Calculation and analysis of the corner connector of the surrounding purlin.

“Troublesome problem of complex foundation pit: in the irregular foundation pit with complex shape, there is a particularly troublesome problem: the bolt connection between the steel purlins at the corner can not be realized.

The corner connector of the surrounding purlin is designed based on the characteristics of simple structure, firmness and stability, convenient rotation, assembly and disassembly, strong reusability and small deformation after stress.

The non-standard parts need about ten days from drawing, processing and transportation to be put into construction, which is likely to affect the construction period and even lead to illegal operations.

Abandon non-standard parts and improve the cast purlin! Composition and characteristics of the corner connector of the surrounding purlin the corner connector of the surrounding purlin is mainly composed of four parts: the corner male end, the corner female end, the pin shaft and the safety pin: the ends of the corner male end and the female end of the surrounding purlin corner connector are respectively connected with two surrounding purlins and rotate around the pin shaft to meet the appropriate angle.

The finite element model with 90 ° corner The following figure shows the stress diagram of the corner connector from the whole to each component.

When the corner connector of the surrounding purlin is turned twice , its cost is the same as that of non-standard parts of the same length.

the side where the ear plate is far away from the pile, as shown in the figure below), other operations are carried out according to the above three steps.

4.

When this joint is adopted, the design value of joint shear force shall be strictly controlled to be less than 1500KN.

After completing the inspection, as shown in the figure, use the crane to lift the purlin to be rotated to a position about 1 cm away from the bracket support, arrange the operator to swing the movable end of the purlin left and right in the horizontal direction, and arrange a commander to stand near the corner connector for observation and command, so as to adjust the corner connector of the purlin to an appropriate angle.

Fixing Socket Cross Hole

2.

From the stress results, except that the stress at the contact between the padeye and the pin is large, the stress conditions of other parts are satisfactory, and so is the stress distribution of the pin.

3.

It can be seen that the corner connector of purlin has obvious advantages in construction.

The traditional solution is: the non-standard parts are shown in the figure for 2-3 days, the processing plant is processed for 7 days, and the material flow transportation process takes at least 10 days, and the non-standard parts can hardly be reused “With Hongxin artifact, there is no need to customize non-standard parts! Hongxin Jianfa has newly developed an artifact: the angle connector of the surrounding purlin, which can adjust the angle freely in the range of 40 ° ~ 320 °, so as to quickly complete the bolt splicing between the two surrounding purlins under non-linear conditions.

In case of construction with an angle less than 180 °, It only needs to rotate 180 ° in the horizontal direction of the corner purlin during installation (i.e.

As the thickness of the ear plate with large stress has reached 35mm, it is not recommended to continue to thicken the ear plate.

This component has the following functional characteristics: the adjustable angle range is 40 ° ~ 320 °, the design value of node stress is less than 1500KN, the single piece weight is 372kg, and the linear length is 743mm.

Hoist the connected purlin and corner connector on the bracket of the pile, align the unconnected end of the corner connector with the pre placed purlin and keep it in a straight line, so as to connect and fix them with bolts, and finally check whether all 8 bolts are connected in place.