CN211735098U

CN211735098U - Wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam

Info

Publication number: CN211735098U
Application number: CN202020092988.XU
Authority: CN
Inventors: 崔凤坤
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-23
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam is formed by old bridge, new bridge, seam, upper bracket and lower carriage combination, and the upper bracket includes entablature, connecting rod, entablature and connecting rod quantity be 2, on new bridge and old bridge were fixed in respectively at the both ends of entablature, two bowl-shaped recesses have been seted up on the last reason of entablature, two parallel and symmetrical placing of entablature, connecting rod parallel arrangement is between two entablatures, the both ends of connecting rod are fixed with circular steel ball, circular steel ball sets up in the bowl-shaped recess on the entablature, the lower bracket is two bottom end rails and constitutes. The utility model discloses a construction equipment installs the connecting rod between two I-steel of upper side, and it is convenient to be under construction. For the upper side I-steel, the manufacturing method is simple, the materials are easily obtained, the cost is relatively low, the operability is strong, and the social and economic benefits are higher.

Description

Wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam

Technical Field

The utility model relates to a wide construction equipment is transversely pieced together to built-up connection formula concrete T beam bridge, more specifically the theory that says so especially relates to one kind and is used for new, old concrete T beam bridge transversely to piece together wide supplementary construction equipment.

Background

With the development of economy, the national highway transportation industry develops rapidly, and the grade requirement on roads and bridges is higher and higher. Because the design load of many old bridges is low, most of the bridge decks are too small in width, the current traffic requirements cannot be met, the bridge reconstruction cost is high, and traffic interruption can be caused, the reconstruction of the old bridges is urgently needed, and the bridge widening becomes a common method for reconstructing the old bridges. The bridge widening is to connect an old bridge and a new bridge together in a mode of cast-in-place wet joints. For the normal operation of guarantee traffic, the utility model discloses a wide construction equipment is transversely pieced together to a combination connection formula concrete T beam bridge makes new, old concrete T beam bridge form external rigid connection in concatenation department under the circumstances of guaranteeing to lead to for internal wet seam concrete warp evenly in succession pouring the in-process, guarantees the quality of seam concrete from this point on, avoids causing the unnecessary loss. The device not only guarantees the quality of seam cast-in-place concrete, but also guarantees the traffic of the original concrete T-beam bridge during the construction of seam concrete pouring. The utility model discloses to the comprehensive properties that promotes concrete T beam bridge, accelerate the development of china's traffic cause and provide reference meaning.

Disclosure of Invention

The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide a new-type concrete T roof beam concatenation construction anchor clamps.

The utility model discloses a combined connection type concrete T-beam transverse widening construction device, which is formed by combining an old bridge, a new bridge, a seam, an upper bracket and a lower bracket above and below the seam, wherein the upper bracket and the lower bracket are both formed by same sectional materials; the method is characterized in that: the upper bracket comprises an upper cross beam and connecting rods, the number of the upper cross beam and the number of the connecting rods are 2, the two ends of the upper cross beam are respectively fixed on a new bridge and an old bridge, two bowl-shaped grooves are formed in the upper edge of the upper cross beam, the two upper cross beams are arranged in parallel and symmetrically, the connecting rods are arranged between the two upper cross beams in parallel, round steel balls are fixed at the two ends of the connecting rods and are arranged in the bowl-shaped grooves in the upper cross beam, the lower support is composed of two lower cross beams and corresponds to the placing position of the upper cross beam of the upper support, the upper cross beam of the upper support is connected with the lower cross beam of the lower support through screws, a foundation groove is formed in the new bridge, a foundation and a channel steel with a joint facing the opening are arranged in the foundation groove, the channel steel is arranged on the foundation and is higher.

The utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam, entablature and bottom end rail are the I-steel.

The utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam, has placed the backing plate between bottom end rail both ends and old bridge and the new bridge, and the one end that the entablature is connected with old bridge is provided with the backing plate.

The utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam, the upper bracket and the lower carriage that are located seam top and below are connected through four screw rods, and the both ends of screw rod are through the nut fastening.

The utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T roof beam, including setting up the template that is arranged in the seam below to carry out the support to the concrete that pours in the seam.

The utility model has the advantages that: the utility model discloses a wide construction equipment is transversely pieced together to built-up connection formula concrete T beam bridge, upper and lower both sides are two I-steel of parallel arrangement respectively. One end of one I-steel is directly placed on the bridge deck of the original concrete T-beam bridge, and the other end of the I-steel is fixed on a channel steel which is arranged in advance on the new bridge; the other I-steel positioned on the upper side is directly placed on the cushion blocks of the new bridge deck and the old bridge deck; the two I-shaped steels on the upper side are connected through two connecting rods positioned in the middle of the I-shaped steels. The two I-beams at the lower side are connected with the two I-beams at the upper side through high-strength bolts and screw rods. Further increasing the stability of the clamp.

The utility model discloses an increase rigid connection between new bridge and the old bridge and construction fixture's fixed convenience, install the connecting rod between two I-steel of upper side, it is convenient to be under construction. For the upper side I-steel, the manufacturing method is simple, the materials are easily obtained, the cost is relatively low, the operability is strong, and the social and economic benefits are higher. The whole construction process is easy to construct, good in stability and of great guiding significance to the construction of transverse splicing of the concrete T-beam.

Drawings

FIG. 1 is a schematic structural view of the combined connection type concrete T-beam transverse widening construction device of the present invention;

FIG. 2 is a cross-sectional view of the middle combined connection type concrete T-beam transverse widening construction device of the utility model;

fig. 3 is a sectional view taken along line a-a of fig. 1 according to the present invention;

fig. 4 is a schematic structural view of the middle support rod of the present invention.

In the figure: the structure comprises an upper cross beam 1, connecting rods 2, bowl-shaped grooves 3, an upper support 4, a lower support 5, a circular steel ball 6, an old bridge 7, a new bridge 8, a screw rod 9, a nut 10, a base plate 11, a template 12, a seam 13, channel steel 14, a foundation 15 and a foundation groove 16.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1, fig. 2 and fig. 3, a schematic structural diagram of a combined connection type concrete T-beam transverse splicing construction device, a cross-sectional view of the combined connection type concrete T-beam transverse splicing construction device and a cross-sectional view a-a of fig. 1 are respectively given, and as shown in fig. 4, a schematic structural diagram of a support rod is given; the utility model discloses a combination connection type concrete T-beam transverse widening construction device, which comprises an old bridge 7, a new bridge 8, a seam 13, an upper bracket 4, a lower bracket 5 and a screw rod 9, wherein the upper bracket 4 and the lower bracket 5 are fixed on the old bridge 7 and the new bridge 8 and are positioned at the upper end and the lower end of the seam 13, the upper bracket 4 and the lower bracket 5 are connected through the screw rod 9 and are fastened by nuts 10 at two ends of the screw rod 9, thereby realizing that the new bridge 8 and the old bridge 7 are connected into a whole, the upper bracket comprises an upper beam 1 and a connecting rod 2, the lower bracket is composed of a lower beam, the upper beam 1 and the lower beam are made of I-steel, the rigidity is better, two bowl-shaped grooves 3 are arranged on the upper edge of the upper beam, round steel balls 6 are welded at two ends of the supporting rod 2 respectively, the number of the upper beam 1 is two, one side with the bowl-shaped grooves 3 is symmetrically arranged, the circular steel balls at the two ends of the supporting rod 2 are placed in the bowl-shaped groove 3 in the upper cross beam 1, so that the supporting rod can move on the upper cross beam 1, a foundation trench 16 is formed in the position where the new bridge 8 is connected with the upper cross beam 1, a foundation 15 is made in the foundation trench again, channel steel 14 is installed in the foundation, the opening of the channel steel 14 faces a seam 13, the upper plane of the channel steel 14 is higher than the bridge floor of the new bridge, the upper cross beam is fixed on the channel steel, and the stability of the upper cross beam on the new bridge is achieved through making the new foundation.

The welding has backing plate 11 between old bridge 7 and the entablature, also is fixed with backing plate 11 simultaneously between the bottom end rail on the lower carriage and new bridge 8 and the old bridge 7 for realize the level between old bridge 7 and the new bridge 8, template 12 is installed to seam 13 lower extreme to the realization plays support and design effect to the concrete of pouring, in order to prevent that the concrete from flowing.

The utility model discloses a wide construction equipment concrete construction steps is transversely pieced together to built-up connection formula concrete T beam bridge is:

1. and manufacturing the upper side connecting module. The connecting module of the combined type connecting concrete T-beam bridge transverse splicing construction device comprises two I-shaped steels and two connecting rods, wherein the connecting rods are positioned in the middle positions of the upper edges of the two I-shaped steels, and the connecting rods are made of steel. The flange plates of the two I-shaped steel are respectively cut into bowl-shaped grooves at the position which is one third away from the end parts, and the end parts of the two connecting rods are respectively welded with a steel ball which can be put into the grooves in size and can rotate. And finally, mounting the connecting rod into the groove, finishing the manufacturing of the upper connecting module, and drilling two holes in the middle of the outer flange plate of each I-steel on the upper side and the lower side at symmetrical positions so as to fix the I-steels on the upper side and the lower side conveniently. During manufacturing, the welding quality is paid certain attention, and necessary quality detection is carried out after welding is finished.

2. And (5) manufacturing and installing channel steel at the new bridge deck. The channel-section steel that fixed end department will be prepared in advance welds to inside reinforcing bar on, channel-section steel length dimension slightly is greater than the width of single I-steel to be convenient for fix the I-steel on the channel-section steel. The channel steel is welded on the reinforcing steel bars inside the concrete T-shaped beam as much as possible so as to strengthen the connectivity of the upper side I-shaped steel and the new bridge reinforcing steel bars.

3. And (4) installing the combined type connecting concrete T-beam bridge transverse splicing construction device. After the work is finished, simultaneously, the joint of the new concrete T-beam bridge and the old concrete T-beam bridge meets the requirements of a drawing, and the I-shaped steel on the upper side and the lower side is fixed. Firstly, arranging transverse splicing construction devices on the whole longitudinal bridge floor according to the calculated space; and then, firstly fixing the I-steel with the upper side needing one end to be welded, fixing the I-steel and the channel steel in a welding mode, and after the I-steel is fixed, adjusting the specific position of the other I-steel on the upper side by adjusting the connecting rod. After the upper side I-steel is fixed, the lower side I-steel is connected through the high-strength screw and the screw, and then a new bridge surface and an old bridge surface of the concrete T-beam form a whole.

4. And (5) binding steel bars at the joint. According to the drawing requirement, the steel bars at the joint of the concrete T-beam bridge are reasonably arranged and bound, the bound steel bars pay attention to the connection of the joint part, and the problem of uneven concrete pouring is also paid attention to so as to avoid causing the problem of concrete quality.

5. And erecting the template. And building a concrete pouring template according to the requirements of drawings. When the template is set up, the gap between the templates must meet the specification.

6. And (6) pouring concrete. After the formwork is erected, concrete begins to be poured, and the concrete is vibrated fully in the concrete pouring process, so that the concrete pouring quality is guaranteed.

7. And (5) concrete curing. In the concrete curing process, water is sprayed regularly according to the standard requirements strictly to achieve the curing conditions required by the concrete until the concrete reaches the curing age of 28 days.

8. Dismantling the transverse widening construction device of the combined connection type concrete T-beam bridge. And (4) after the concrete reaches the curing age, dismantling the transverse widening auxiliary construction tool for the concrete T-beam. For safety, the lower side I-steel is firstly dismantled. Firstly, cutting a high-strength screw rod connecting I-shaped steels on the upper side and the lower side at the concrete joint surfaces on the upper side and the lower side; then, cutting one end of the upper side I-steel and the welded end of the channel steel directly at the contact position of the channel steel and the I-steel, recovering the high-strength bolt, and leaving the middle part of the high-strength screw in the joint of the concrete T-beam. And finally, after the cutting and dismantling are completed, the dismantled I-steel is regulated, maintained and polished, and stored for the next use.

Claims

1. A combined connection type concrete T-beam transverse widening construction device is formed by combining an old bridge (7), a new bridge (8), a joint (13), an upper support (4) and a lower support (5) above and below the joint (13), wherein the upper support (4) and the lower support (5) are both formed by same sectional materials; the method is characterized in that: the upper support (4) comprises an upper cross beam (1) and connecting rods (2), the number of the upper cross beam (1) and the number of the connecting rods (2) are 2, two ends of the upper cross beam (1) are respectively fixed on a new bridge (8) and an old bridge (7), two bowl-shaped grooves (3) are formed in the upper edge of the upper cross beam (1), the two upper cross beams (1) are arranged in parallel and symmetrically, the connecting rods (2) are arranged between the two upper cross beams (1) in parallel, circular steel balls (6) are fixed at two ends of the connecting rods (2), the circular steel balls (6) are arranged in the bowl-shaped grooves (3) in the upper cross beam (1), the lower support (5) is composed of two lower cross beams and corresponds to the arrangement position of the upper cross beam (1) of the upper support (4), the upper cross beam (1) of the upper support (4) is connected with the lower cross beam of the lower support (5) through a screw (9), a foundation groove (16) is formed in the new, be provided with in foundation trench (16) foundation (15) and opening towards channel-section steel (14) of seam (13), channel-section steel (14) set up on the foundation, and exceed the new bridge floor, and the one end of entablature (1) is then fixed in on channel-section steel (14).

2. The combination connection type concrete T-beam transverse widening construction device according to claim 1, is characterized in that: the upper cross beam (1) and the lower cross beam are both made of I-shaped steel.

3. The combination connection type concrete T-beam transverse widening construction device according to claim 1 or 2, characterized in that: a base plate (11) is arranged between the two ends of the lower cross beam and the old bridge (7) and the new bridge (8), and the base plate (11) is arranged at one end of the upper cross beam (1) connected with the old bridge.

4. The combination connection type concrete T-beam transverse widening construction device according to claim 1 or 2, characterized in that: the upper support (4) and the lower support (5) which are positioned above and below the seam (13) are connected through four screw rods (9), and two ends of each screw rod are fastened through nuts (10).

5. The combination connection type concrete T-beam transverse widening construction device according to claim 1 or 2, characterized in that: comprises a template (12) which is arranged below the joint (13) and is used for supporting concrete poured in the joint.