Cast-in-place bridge deck slab support

Abstract

The utility model discloses a cast-in-place bridge deck slab support which comprises a protective fence, a hanging bracket system and a formwork. The hanging bracket system is supported at the top of the steel box girder, the formwork is arranged in a hanging mode through the hanging bracket system, and the protective fences are fixedly arranged on the two sides of the hanging bracket system in the length direction. The formwork comprises an end formwork and an inter-beam formwork in the width direction of a bridge, the inter-beam formwork is used for pouring a bridge deck slab between adjacent steel box beams, the inter-beam formwork comprises two sets of formworks A and a set of formworks B, the formworks B are plane formworks, the middles of the formworks A are inclined planes, and the two ends of the formworks A extend to form horizontal planes. According to the utility model, the pouring of the bridge deck is completed under the condition that the passing of vehicles on the road surface under the bridge is not influenced, and meanwhile, the pouring template is improved aiming at the bottom concave linear bridge deck.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field, more specifically, the utility model relates to a cast-in-place bridge deck slab support. BACKGROUND

[0002] With the rapid progress of bridge high speed, its type is more and more, wherein, steel mixed combination beam is more in the application of highway, and its structural form is to pour concrete bridge deck on the top of steel box beam. Concrete bridge deck adopts full support and pouring formwork to pour bridge deck in the existing construction technology, but full support occupies the space under the bridge, which will affect the driving of the road surface under the bridge, and the installation and removal of full support are complicated. SUMMARY

[0003] The utility model discloses a cast-in-place bridge deck slab support, which can complete the pouring of the bridge deck slab without affecting the vehicle passing of the road surface under the bridge, and the pouring formwork is improved for the bottom concave line-shaped bridge deck slab.

[0004] The utility model discloses a cast-in-place bridge deck slab support, which can complete the pouring of the bridge deck slab without affecting the vehicle passing of the road surface under the bridge, and the pouring formwork is improved for the bottom concave line-shaped bridge deck slab.

[0005] The hanging frame system is supported on the top of the steel box beam, the formwork is suspendedly arranged through the hanging frame system, and the guardrail is fixedly arranged on the two sides of the length direction of the hanging frame system.

[0006] The formwork comprises end formworks and inter-beam formworks along the width direction of the bridge, the inter-beam formworks are used for pouring the bridge deck slab between the adjacent steel box beams, the inter-beam formwork comprises two groups of A formworks and one group of B formworks, the B formwork is a plane formwork, and the middle part of the A formwork is a slope, and the two ends of the A formwork extend to be horizontal planes.

[0007] As a further scheme of the utility model, the hanging frame system comprises a bearing beam, a finished rolled threaded steel, a cushion beam, a back side and a joist.

[0008] The cushion beam is arranged on the steel box beam, the cushion beam supports the bearing beam, the joist is arranged below the bridge deck slab, the joist is connected with the bearing beam through the finished rolled threaded steel and a nut, so that the joist is suspendedly arranged, the back side is arranged on the joist, and the formwork is arranged on the back side.

[0009] As a further scheme of the utility model, when the bridge has a cross slope, anti-skid limiting feet are arranged on the joist, and the anti-skid limiting feet are located at the lower side of the bottom of the back side.

[0010] As a further scheme of the utility model, the bottom of the A formwork and the B formwork is connected through a plurality of bolts and ear plates.

[0011] As a further scheme of the present utility model is: the middle part of A mould and both ends thereof are bonded through adhesive.

[0012] The present utility model has at least the following advantages: the cast-in-place bridge deck support is provided with a protective fence, thereby improving the safety of construction; the installation of the hanger system replaces the installation of the traditional scaffold, thereby ensuring normal traffic under the bridge; and the cast-in-place bridge deck support is reliable in case that the bridge has a cross slope.

[0013] Other advantages, objects and features of the present utility model will be illustrated in part through the following description, and will be understood by those skilled in the art through research and practice of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a cast-in-place bridge deck support construction schematic diagram of the present utility model;

[0015] Figure 2 is an enlarged schematic diagram of the cast-in-place bridge deck support of the present utility model;

[0016] Figure 3 is a formwork schematic diagram of the present utility model;

[0017] Figure 4 is a joist schematic diagram of the present utility model.

[0018] Among them, 1 is a protective fence, 2 is a bearing beam, 3 is a finished rolling threaded steel, 4 is a cushion beam, 5 is a back side, 6 is a joist, 7 is a steel box beam, 8 is a formwork, 9 is an anti-skid limiting foot, 10 is A mould, 11 is B mould, and 12 is an ear plate. DETAILED DESCRIPTION

[0019] The present utility model will be described in detail and completely in combination with the drawings. Those skilled in the art will be able to realize the present utility model based on these descriptions. Before the present utility model is described in combination with the drawings, it needs to be particularly pointed out that the technical solutions and technical features provided in each part including the following description in the present utility model can be combined with each other in the case of no conflict.

[0020] In addition, the embodiments of the present utility model involved in the following description are usually only the embodiments of a part of the present utility model, rather than all the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments in the present utility model without making creative efforts shall belong to the protection scope of the present utility model.

[0021] The present utility model will be further described in detail in combination with the drawings and embodiments, and the specific implementation process is as follows:

[0022] AsFigures 1-4 As shown, the utility model provides a cast-in-place bridge deck support, comprising: a guardrail 1, a hanger system and a template 8;

[0023] The hanger system is supported on the top of the steel box girder 7, from which the formwork 8 is suspended. Guardrails 1 are fixed to both sides of the hanger system along its length. In this embodiment, the guardrails 1 are constructed using ø48 steel pipes. The construction platform guardrails are equipped with a fine mesh net. The height of the guardrails 1 is no less than 1.2 meters above the upper flange of the steel beam. The steel pipes can be spot welded to the upper steel sections of the bridge deck formwork 8 system.

[0024] The formwork 8 includes end formwork and inter-beam formwork along the width direction of the bridge. The formwork 8 is made of bamboo plywood. The inter-beam formwork is used for pouring the bridge deck between adjacent steel box girders 7. The inter-beam formwork includes two groups of A formworks 10 and one group of B formworks 11. The B formworks 11 are flat formworks. The middle part of the A formwork 10 is an inclined surface, and its two ends extend into horizontal planes. The end formwork is a flat bamboo plywood. The end formworks on both sides are supported by cantilever brackets. The back ribs of the end formwork are made of 10×10cm square wood in the horizontal direction, with a spacing of about 30cm.

[0025] This technical solution may also include the following technical details to better achieve the technical effect: the hanger system includes a load-bearing beam 2, a precision-rolled threaded steel bar 3, a pad beam 4, a backing beam 5 and a joist 6;

[0026] The cushion beam 4 is arranged on the steel box beam 7, and the cushion beam 4 supports the load-bearing beam 2. The load-bearing beam 2 and the cushion beam 4 are connected by bolts. The support beam 6 is arranged under the bridge deck, and the support beam 6 is connected to the load-bearing beam 2 through the precision-rolled threaded steel 3 and the nut, so that the support beam 6 is suspended. A back side 5 is provided on the support beam 6, and the template 8 is laid on the back side 5.

[0027] In this application, the length of the fine-rolled threaded steel bar 3 is 1.2m; the load-bearing beam 2 extends along the width direction of the bridge, and the length of a single beam is 6m; the cushion beam 4 is 2 workers 20a, and the length of a single beam is 0.5m; the thickness of the template 8 is 1.5cm; the back side 5 is a 10*10cm square wood, and the back side 5 is used to support the template 8, which is located at; Figure 4 As shown, the joist 6 is formed by welding two 10-shaped channel steels into a whole through a bottom steel plate.

[0028] This technical solution can also include the following technical details to better achieve the technical effect: when the bridge has a transverse slope, in view of the transverse slope of the bridge, an anti-slip limit foot 9 is fixed on the support beam 6, and the anti-slip limit foot 9 is located on the lower side of the bottom of the back 5.

[0029] The technical scheme can further include the following technical details to better achieve the technical effects: the bottoms of the A die 10 and the B die 11 are connected through a plurality of bolts and lug plates 12.

[0030] The technical scheme can further include the following technical details to better achieve the technical effects: the middle part of the A die 10 and both ends thereof are bonded through adhesive.

[0031] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be applied to various fields suitable for the present application. Those skilled in the art can easily make further modifications, and thus the present application is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A cast-in-place bridge deck panel support, characterized by Include: Guardrails, hanger systems and templates; The hanger system is supported on the top of the steel box girder, the template is suspended by the hanger system, and the guardrails are fixed on both sides of the length direction of the hanger system; The template includes end templates and beam templates along the width direction of the bridge, and the beam templates are used for pouring the bridge deck between adjacent steel box girders, the beam templates include two groups of A templates and one group of B templates, the B template is a flat template, and the middle part of the A template is inclined and the two ends extend horizontally.

2. The cast-in-place bridge deck panel support of claim 1, wherein, The hanger system includes a bearing beam, a finished rolled threaded steel, a cushion beam, a back side and a joist; The cushion beam is arranged on the steel box girder, the cushion beam supports the bearing beam, the joist is arranged below the bridge deck, the joist is connected with the bearing beam through the finished rolled threaded steel and the nut, so that the joist is suspended, the back side is arranged on the joist, and the template is laid on the back side.

3. The cast-in-place bridge deck panel support of claim 2, wherein, When the bridge has a cross slope, anti-skid limiting feet are arranged on the joist, and the anti-skid limiting feet are located on the lower side of the bottom of the back side.

4. The cast-in-place bridge deck panel support of claim 3, wherein, The bottom of the A template and the B template is connected through a plurality of bolts and ear plates.

5. The cast-in-place bridge deck panel support of claim 1, wherein, The middle part of the A template and the two ends are bonded by adhesive.

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