Reinforced concrete sandwich beam wing plate support
The utility model relates to the highway bridge construction technical field of construction, particularly a kind of construction of implementing reinforced concrete sandwich beam wing plate.
In recent years, along with increasing continuously that the construction of highway in China road network drops into, the continuous improvement of urban highway traffic ability, make the more current city's main road axles of in the city newly-built overpass bridge girder span, newly reconstructing road, to cross over the phenomenon of the speedway that delivered uses more and more.Because the actual traffic condition restriction needs bridge not open circuit and constructs.Particularly stride the curved bridge in footpath greatly, be used to be designed to all round victory support cast-in-place concrete box girder, bigger in the construction to traffic impact.For this reason, designing unit generally often is designed to structure the reinforced concrete sandwich beam under these two kinds of conditions, to reach in the construction as much as possible with the purpose of present situation traffic impact to minimum.
In practice of construction, after the steel main cable and girder finishes, cast-in-situ concrete wing plate falsework to take construction be one of key point of whole reinforced concrete sandwich beam combination construction.The construction technology of wing plate falsework does not also have unified construction technical schemes now.Existing job practices has two kinds, and the one, directly to prop up proping from ground, establish the method that door opening is led the traffic construction, this kind method is big to traffic impact; The 2nd, adopt this method construction technology complexity of the steel work or lumps of wood suspention job practices, cost height.
Summary of the invention
The purpose of this utility model provides a kind of reinforced concrete sandwich beam wing plate support, solve the technical problem that construction is big to traffic impact, construction technology is complicated, cost is high of wing plate falsework.
For achieving the above object, the utility model adopts following technical scheme:
This reinforced concrete sandwich beam wing plate support, comprise support body, described support body is supported in reinforced concrete sandwich beam wing plate template below at interval, every Pin support body is by cross bar, montant and brace connect into the right-angled triangle steel framed structure, be connected with hound between the rod member of steel frame, cross bar is inner to be welded with vertical sleeve pipe with connected node place, montant upper end, bolt is upward through vertical sleeve pipe and is connected with wing plate template bottom surface, the cross bar outer end is connected with straight up side bar, montant lower end and brace connected node place are welded with horizontal sleeve pipe and are equipped with and adjust holder, adjusting holder is made of screw rod and supporting plate, supporting plate is fixed on the girder steel side, the supporting plate center has screw, and screw rod passes horizontal sleeve pipe and is connected with the girder steel side with screw on the supporting plate.
Both sides, connected node place between described cross bar, montant, brace, the hound are welded with strengthening steel slab.
Described hound has three, is Z-shaped and is connected between cross bar and the brace.
Described screw rod inwardly passes horizontal sleeve pipe place and is fixed with postive stop baffle.
Compared with prior art the utlity model has following characteristics and beneficial effect:
Adopt the utility model to carry out the construction of ramp bridge reinforced concrete sandwich beam wing plate, can make the reinforced concrete sandwich beam wing plate supports of a large amount of employings in the construction form unified standard.The support installing/dismounting is very convenient, but installs during the multiple spot manual interlocking, thereby the reduction of erection time, does not influence traffic substantially.Can economize on resources, be beneficial to environmental protection with steel for wood, the material turnover height reduces construction cost.
Use the support standard component to cooperate the cast-in-place wing plate concrete blinding of adjustable rest suspention bearing bar concrete folding beam, but adjustable rest regulated at will design wing plate horizontal wall inscription during construction, flexible operation.
Adopt the construction of reinforced concrete sandwich beam wing plate support method, easy and simple to handle, traffic impact can be dropped to minimum, can reach quality, cost, the security control object of construction expection, have remarkable economic efficiency and social benefit, excellent popularization use value is arranged.
The utility model is suitable for city intersection and reaches newly-built reinforced concrete sandwich beam bridge crossing wing plate construction on the speedway that is using.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an installation drawing of the present utility model.
Fig. 3 is the enlarged drawing at cross bar and montant connected node place among Fig. 2.
Fig. 4 is the enlarged drawing at montant and brace connected node place among Fig. 2.
Reference numeral: 1-cross bar, 2-montant, 3-brace, 4-hound, 5-strengthening steel slab, the vertical sleeve pipe of 6-, 7-bolt, the horizontal sleeve pipe of 8-, 9-screw rod, 10-supporting plate, 11-postive stop baffle, 12-side bar, 13-girder steel, 14-wing plate template, 15-wing plate concrete.
The specific embodiment
Embodiment is referring to shown in Fig. 1-4, this reinforced concrete sandwich beam wing plate support, comprise support body, described support body is supported in reinforced concrete sandwich beam wing plate template 14 belows at interval, every Pin support body is by cross bar 1, montant 2 and brace 3 connect into the right-angled triangle steel framed structure, be connected with hound 4 between the rod member of steel frame, hound 4 has three, being Z-shaped is connected between cross bar 1 and the brace 3, cross bar 1, montant 2, brace 3, both sides, connected node place between the hound 4 are welded with strengthening steel slab 5, cross bar 1 the inner is welded with vertical sleeve pipe 6 with connected node place, montant 2 upper end, bolt 7 is upward through vertical sleeve pipe 6 and is connected with wing plate template 14 bottom surfaces, cross bar 1 outer end is connected with straight up side bar 12, montant 2 lower ends and brace 3 connected node places are welded with horizontal sleeve pipe 8 and are equipped with and adjust holder, adjusting holder is made of screw rod 9 and supporting plate 10, supporting plate 10 is fixed on girder steel 13 sides, the supporting plate center has screw, screw rod 9 passes horizontal sleeve pipe 8 and is connected with girder steel 13 sides with screw on the supporting plate 10, and screw rod 9 inwardly passes horizontal sleeve pipe 8 places and is fixed with postive stop baffle 11.
The course of work of the present utility model: at first girder steel wing plate outward flange inwards the vertical every 60cm in 10cm-15cm position beat the hole of diameter phi 22 mm in advance, be used for support and be connected with girder steel.With φ 20 mm bolts support is installed on the girder steel successively.For removing conveniently, bolt enters wing plate concrete 15 places and two nuts outsides will be set swathe adhesive tape and prevent that concrete from infiltrating.Adopt to adjust holder press design drawing given reinforced concrete sandwich beam wing plate bottom surface horizontal wall inscription, support and girder steel connecting screw rod are tightened, carry out next step template installation.