A construction method of accumulative slippage of string trusses with columns at different elevations

Abstract

The invention belongs to the field of steel structure building construction, and in particular relates to a construction method for accumulative slippage of stringed trusses with columns of different elevations. Specifically include the following steps: a. Install the long track at both ends of the truss and the short track at the middle span; b. High-altitude assembly of the truss; c. Install temporary stabilization measures for unequal-height sliding columns; d. Cable tensioning and interspersed construction; e. After the sliding is in place, the sliding steel column is docked with the lower supporting steel column, and the sliding shoe is cut off to complete the construction. In the construction process of the present invention, the force transmission is clear, the force conversion process is uniform and safe, the sliding column has high stability, and the structural sliding process is close to the design state. At the same time, temporary construction measures and large-scale mechanical equipment investment are reduced. Professional construction provides a working surface, reduces the construction safety risk of large machinery entering the site, shortens the construction period, and realizes the safe and stable placement of string trusses with different heights.

Description

technical field

[0001] The invention belongs to the field of steel structure building construction, and in particular relates to a construction method for accumulative slippage of stringed trusses with columns of different elevations. Background technique

[0002] As a new type of structure, the tension string structure is composed of rigid members with high bending rigidity (solid web beams, trusses, etc.) and high-strength cables. It has a light weight and can span a large space. It has been more and more widely used in large-span space structures such as stadiums, exhibitions, and theaters. The novel and unique shape of this type of building puts forward higher requirements for steel structure construction; the high-altitude sliding construction method should have construction measures compared with traditional construction methods, less investment in mechanical equipment, fast construction speed, safety and reliability, and the required working surface It is more and mo...

Examples

Embodiment Construction

[0037] like Figure 1~7Shown is one of the embodiments of the present invention. A section structure of a convention and exhibition center adopts a stringed truss structure, which is mainly composed of a stringed truss, a vertical support truss, and a truss-supported steel column. The projected size of the structure is 142.5m×90m. The number of tension trusses is 8, and the distance between trusses is 12m~21.7m. The seat and the fixed hinge support are connected with the steel column.

[0038] Using the construction method of accumulative slippage with columns at different heights, the cumulative sliding of the roof structure with columns at a height of 23m is 142.5m, and the installation of the structure is completed. The specific steps are as follows:

[0039] (1). Long rails on both sides, short mid-span rails and independent support frame installation:

[0040] The top elevation of the load-bearing track beam 3 is determined according to the minimum elevation of the stee...

technical field

[0001] The invention belongs to the field of steel structure building construction, and in particular relates to a construction method for accumulative slippage of stringed trusses with columns of different elevations. Background technique

[0002] As a new type of structure, the tension string structure is composed of rigid members with high bending rigidity (solid web beams, trusses, etc.) and high-strength cables. It has a light weight and can span a large space. It has been more and more widely used in large-span space structures such as stadiums, exhibitions, and theaters. The novel and unique shape of this type of building puts forward higher requirements for steel structure construction; the high-altitude sliding construction method should have construction measures compared with traditional construction methods, less investment in mechanical equipment, fast construction speed, safety and reliability, and the required working surface It is more and mo...

Examples

Embodiment Construction

[0037] like Figure 1~7Shown is one of the embodiments of the present invention. A section structure of a convention and exhibition center adopts a stringed truss structure, which is mainly composed of a stringed truss, a vertical support truss, and a truss-supported steel column. The projected size of the structure is 142.5m×90m. The number of tension trusses is 8, and the distance between trusses is 12m~21.7m. The seat and the fixed hinge support are connected with the steel column.

[0038] Using the construction method of accumulative slippage with columns at different heights, the cumulative sliding of the roof structure with columns at a height of 23m is 142.5m, and the installation of the structure is completed. The specific steps are as follows:

[0039] (1). Long rails on both sides, short mid-span rails and independent support frame installation:

[0040] The top elevation of the load-bearing track beam 3 is determined according to the minimum elevation of the stee...

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