CN213740608U

CN213740608U - Truss fixing mechanism on pier stand column

Info

Publication number: CN213740608U
Application number: CN202022189919.3U
Authority: CN
Inventors: 刘举; 王雨生; 陈沣; 高扬; 吕轶波
Original assignee: Sucgm Ltd
Current assignee: Sucgm Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-07-20
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a truss fixed establishment on pier stand for be fixed in the truss in the both sides of pier stand, its characterized in that truss fixed establishment is including seting up in mounting hole on the truss the through-hole is reserved to the level on the pier stand and runs through the mounting hole with the round pin stick of through-hole is reserved to the level, the both ends of round pin stick are overlapped respectively and are equipped with support sleeve with the internal face of mounting hole with the level is reserved the internal face of through-hole and is pasted tightly and form the support, support sleeve certainly the mounting hole extends to in the through-hole is reserved to the level. The utility model has the advantages that the combined structure of the pin rod and the support sleeve is adopted between the truss and the pier upright post, the truss can be effectively fixed on the pier upright post, and the diameter and the weight of the pin rod can be reduced to the maximum extent under the condition of meeting the requirement of bearing capacity, thereby reducing the installation difficulty.

Description

Truss fixing mechanism on pier stand column

Technical Field

The utility model belongs to the technical field of the road bridge, concretely relates to truss fixed establishment on pier stand.

Background

When the urban bridge is cast in place, roads are required to be closed, construction period is long, construction quality is not easy to control, consumption of supports and templates in construction is high, construction cost is high, road traffic capacity of construction points is directly influenced, dust, noise and other pollution are brought to cities when concrete materials are constructed and transported, citizens go out and life quality are seriously influenced, great complaints are often caused, and the requirements of urban construction development cannot be met.

Based on this, in order to shorten construction period, reduce the influence to traffic and resident's life around, prefabricated bent cap is by more and more applied to urban bridge construction in-process, compares with cast in situ bent cap, and prefabricated bent cap has advantages such as prefabricated on a large scale, transportation and simple to operate, obtains more extensive application in the bridge construction field.

Before the prefabricated bent cap is erected, a fixed truss structure needs to be installed on a pier stand column, a through hole is formed in the pier stand column in a structure commonly used at present, a pin rod is arranged in the through hole to fix a truss on the pier stand column, but the pin rod arranged in the whole piece has the problems of heavy weight and high cost, and great difficulty exists in installation.

Disclosure of Invention

The utility model aims at providing a truss fixed establishment on pier stand according to the weak point of above-mentioned prior art, this truss fixed establishment establishes support sleeve through the both ends at the round pin stick cover respectively to under the condition that reaches the bearing capacity requirement, reduced the diameter and the weight of round pin stick greatly, reduced the installation degree of difficulty of round pin stick.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a truss fixed establishment on pier stand for be fixed in the truss in the both sides of pier stand, its characterized in that truss fixed establishment is including offering in mounting hole on the truss the through-hole is reserved to the level on the pier stand and runs through the mounting hole with the round pin stick of through-hole is reserved to the level, the both ends of round pin stick are overlapped respectively and are equipped with support sleeve with the internal face of mounting hole with the internal face of level reservation through-hole pastes tightly and forms the support, support sleeve certainly the mounting hole extends to in the through-hole is reserved to the level.

The extension length L of the support sleeve in the horizontal reserved through hole of the pier column is 2-3 times of the outer diameter d of the support sleeve, namely, L is more than 2d and less than 3 d.

And a circle of flange is arranged on the outer wall surface of the support sleeve, and the flange is clamped between the pier column and the truss.

The truss is provided with a fixed sleeve, the fixed sleeve comprises a flange plate and a sleeve which are connected with each other, the fixed sleeve is sleeved on the exposed end of the supporting sleeve, and the flange plate is fixedly connected with the truss.

The outer end of the pin rod protrudes out of the fixing sleeve, and a nut is arranged at the outer end of the pin rod and screwed to abut against the fixing sleeve to fix the pin rod.

The utility model has the advantages that: the combined structure of the pin rods and the support sleeves is adopted between the truss and the pier upright column, so that the truss can be effectively fixed on the pier upright column, the diameter and the weight of the pin rods can be reduced to the maximum extent under the condition of meeting the requirement of bearing capacity, and the installation difficulty is reduced.

Drawings

FIG. 1 is a schematic view of a truss of the present invention fixed on a pier column by a fixing mechanism;

fig. 2 is a cross-sectional view taken along line a-a of fig. 1 in accordance with the present invention;

fig. 3 is a schematic, enlarged, side view of the present invention in fig. 2;

fig. 4 is a partially enlarged schematic view B of fig. 1 according to the present invention.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:

referring to fig. 1-4, the labels in the figures are: the device comprises a truss 1, pier columns 2, prefabricated bent caps 3, a truss fixing mechanism 4, a pin rod 5, a support sleeve 6, a fixing sleeve 7, a nut 8, a horizontal preformed hole 9, a mounting hole 10 and a flange 11.

Example (b): as shown in fig. 1, 2, 3, 4, this embodiment concretely relates to truss fixed establishment on pier stud, this truss fixed establishment 4 is used for installing truss 1 fixed on pier stud 2, truss fixed establishment 4 is including offering the mounting hole 10 on truss 1, offer the level preformed hole 9 on pier stud and run through the round pin 5 through mounting hole 10 and level preformed hole 9, the both ends of round pin 5 overlap respectively and are equipped with support sleeve 6 and form the support with the internal wall of mounting hole 10 and the internal wall of level preformed hole 9 clinging tightly, each support sleeve 6 extends to in the level preformed hole 9 from the mounting hole 10.

As shown in fig. 1, 2, 3 and 4, the pier stud 2 of the present embodiment is used for erecting a prefabricated capping beam 3, and the trusses 1 on both sides of the pier stud 1 are used for guiding and supporting the prefabricated capping beam 3 during the erecting construction. As shown in fig. 1 and 4, two sets of truss fixing mechanisms 4 are provided on each of the pier stud 2, thereby stabilizing the truss 1 on the pier stud 2.

As shown in fig. 2 and 3, the installation holes 10 on the truss 1 correspond to the horizontal preformed holes 9 on the pier stud 2, and the hole diameters of the two holes are the same; the diameter of round pin 5 is less than the aperture of horizontal preformed hole 9 and mounting hole 10, round pin 5 runs through the mounting hole 10 on the truss 1 of one side in proper order, horizontal preformed hole 9 on the pier column 2 and the mounting hole 10 on the truss of opposite side 1, establish support sleeve 6 at the both ends cover of round pin 5, support sleeve 6's external diameter is corresponding to the aperture of horizontal preformed hole 9 and mounting hole 10, consequently can make support sleeve 6 hug closely the internal face of mounting hole 10 and the internal face of horizontal preformed hole 9 after support sleeve 6 is established to the cover at 5 both ends of round pin, form and support the atress. The middle part of the support sleeve 6 is provided with a circle of flange 11 so as to divide the support sleeve 6 into two parts in the length direction, one part extends into the horizontal preformed hole 9 of the pier upright post 2 when being installed, the other part is arranged in the installation hole 10 of the truss 1 when being installed, and the circle of flange 11 is clamped between the inner wall surface of the truss 1 and the outer wall surface of the pier upright post 2 to play a role in fixing and limiting the support sleeve 6; it should be further noted that the extension L of the support sleeve 6 in the horizontal preformed hole 9 is 2-3 times the outer diameter d of the support sleeve 6, i.e. 2d < L < 3d, and is selected such that the mechanical properties of the combination of the support sleeve 6 and the pin 5 reach the mechanical properties of the pin 5 with the same diameter d.

As shown in fig. 2 and 3, the outer end of the support sleeve 6 slightly protrudes out of the truss 1, the truss 1 is provided with a fixing sleeve 7 corresponding to each support sleeve 6, the fixing sleeve 7 comprises a flange and a sleeve which are connected with each other, the sleeve is sleeved on the exposed end of the support sleeve 6, and the flange is fixedly connected with the truss 1 through a bolt; the outer end of the pin rod 5 protrudes out of the fixed sleeve 7, and nuts are respectively sleeved at two ends of the pin rod 5 and screwed to abut against the fixed sleeve to fix the pin rod 5.

As shown in fig. 1 to 4, the installation method of the truss fixing mechanism in the present embodiment includes the following steps:

(1) respectively inserting a support sleeve 6 into each horizontal preformed hole 9 of the pier column 2, so that the front half part of the support sleeve 6 extends into the horizontal preformed hole 9, and a circle of flange 11 on the support sleeve is closely attached to the outer wall surface of the pier column 1;

(2) aligning and sleeving each mounting hole 10 on the truss 1 with each support sleeve 6 to arrange the truss 1 on the support sleeve 6;

(3) the hoisting pin rods 5 are installed, sequentially penetrate through the supporting sleeve 6 on one side, the horizontal preformed hole 9 and the supporting sleeve 6 on the other side, and after the installation is in place, the fixed sleeve 7 is sleeved on the outer side of the truss 1 and is fixed through bolts; a nut is provided on the outer end of the pin 5 and screwed against the fixed sleeve 7 to fix the pin 5.

Claims

1. The utility model provides a truss fixed establishment on pier stand for be fixed in the truss in the both sides of pier stand, its characterized in that truss fixed establishment is including offering in mounting hole on the truss the through-hole is reserved to the level on the pier stand and runs through the mounting hole with the round pin stick of through-hole is reserved to the level, the both ends of round pin stick are overlapped respectively and are equipped with support sleeve with the internal face of mounting hole with the internal face of level reservation through-hole pastes tightly and forms the support, support sleeve certainly the mounting hole extends to in the through-hole is reserved to the level.

2. The truss attachment mechanism as claimed in claim 1, wherein the support tubes extend in the horizontal pre-formed through-holes of the pier column by a length L2-3 times an outer diameter d of the support tubes, i.e., 2d < L < 3 d.

3. A truss attachment mechanism as defined in claim 2 wherein said brace sleeve has a collar on an outer wall surface thereof, said collar being disposed in clamping relation between said pier stud and said truss.

4. The truss fixing mechanism on pier stud as claimed in claim 3, wherein a fixing bushing is provided on the truss, the fixing bushing includes a flange and a sleeve connected to each other, the fixing bushing is fitted on the exposed end of the support sleeve through the sleeve and is fixedly connected to the truss through the flange.

5. The truss attachment mechanism as claimed in claim 4, wherein outer ends of said pins protrude from said fixing caps, and nuts are provided on the outer ends of said pins and screwed against said fixing caps to fix said pins.