Large-span steel arch structure arch springing installing and locating assembly
The utility model relates to a kind of Steel Structure Installation positioning component, particularly a kind of crab-bolt installing and locating assembly that is applied to steel arch structure arch springing in the steel building.
Advantages such as steel building relies on that its cost is low in recent years, large space, anti-seismic performance are good develop rapidly, especially are used widely in communal facilitieies such as public building and large stadium.The steel arch generally is installed on the base concrete capital by pre-embedded bolt, and anchor bolt preburied installation accuracy is to influence the most important factor of steel installation accuracy.Particularly land length when longer when steel arch, every Pin main arch divides multistage to install when construction, by upwards assembling of arch springing, closes up at crown center at last.The main arch span is big, therefore needs accurately to determine the position of arch springing crab-bolt.Otherwise when in the end closing up, very mistake can appear.General design arch springing is located with four crab-bolts, and when arch when there is the both direction inclination angle on space and ground, arch springing base plate and horizontal plane have the inclination of two angles, crab-bolt also will have the inclination of two angles, this moment, the crab-bolt positioning difficulty was very big during cast-in fixing bolt, be difficult to make crab-bolt to satisfy axis, absolute altitude, position and angle control requirement simultaneously, and lack reliable fixing when construction, crab-bolt is shifted easily in the concreting process.
The utility model content
The purpose of this utility model provides a kind of large-span steel arch structure arch springing crab-bolt locating, and connecting components, with the deficiency of kind traditional locate mode, guarantees the installation accuracy of steel arch.
The technical solution of the utility model is:
Large-span steel arch structure arch springing installing and locating assembly comprises the plane steel plate that is arranged on the horizontal plane, vertical junction plate and crab-bolt fixing steel plate, and the crab-bolt fixing steel plate is welded on the junction plate, and junction plate is welded on the pre-buried plane steel plate in the plane; The arch springing base plate is fixed on the crab-bolt fixation steel plate by crab-bolt, and the arch springing base plate is fixedlyed connected with the steel arch;
Described crab-bolt fixing steel plate be one with the identical steel plate of steel arch base plate shape;
Described crab-bolt fixing steel plate and the rectangular steel plates that steel arch base plate is a size, shape is identical;
The crab-bolt locating hole of being opened on the described template is identical with crab-bolt quantity, and the aperture is greater than crab-bolt diameter 1mm;
Described junction plate be shaped as right-angled trapezium;
Described junction plate is three, four or five.
The thickness of described junction plate is 8-10mm.
The beneficial effects of the utility model are: crab-bolt is by crab-bolt location-plate location, the crab-bolt location-plate is welded on the pre-buried plane steel plate in the plane by junction plate again, space orientation is converted into plane positioning, solved the pre-embedded bolt at both direction inclination angle location difficulty has been arranged, and the problem that is shifted easily in the fluid concrete process, thereby accurate positioning is simple to operate, improves work efficiency.
Description of drawings
Fig. 1 crab-bolt location-plate schematic diagram;
Fig. 2 junction plate schematic diagram;
Fig. 3 crab-bolt location-plate, junction plate assembling schematic diagram.
Among the figure, 1. steel encircles 2. steel arch base plate, 3. crab-bolt location-plates, 4. crab-bolts, 5. junction plates, 6. plane steel plates, 7. anchor hole
The specific embodiment
Embodiment sees Fig. 1-3.
In the steel arch structure positioning component, plane steel plate 7 adopts the Q345 steel to do, and is of a size of 500mm * 500mm, and thickness is 12mm; Be welded to connect 5 three of plates above the plane steel plate 7, thickness is 12mm, and the peak height is respectively 75mm, 65mm, 55mm; Crab-bolt location-plate 3 adopts the Q345 steel, and thickness is 12mm, with the junction plate welding, is of a size of 650mm * 750mm, and size is identical with the arch base plate; Crab-bolt location-plate 3 is provided with 4 crab-bolts 4, crab-bolt 4 diameter 36mm, and anchor hole 8 diameters are 37mm on the crab-bolt location-plate 3.