CN212897183U

CN212897183U - Inspection pit stand

Info

Publication number: CN212897183U
Application number: CN202021125449.8U
Authority: CN
Inventors: 章宏伟; 周艳斐; 傅金融; 陈啸; 杨井
Original assignee: SHANGHAI JIANKE ENGINEERING CONSULTING CO LTD
Current assignee: SHANGHAI JIANKE ENGINEERING CONSULTING CO LTD
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-04-06
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses an inspection hole stand relates to urban rail construction technical field, including precast concrete stand, precast concrete stand includes concrete cylinder, bottom plate and steel reinforcement cage, and the steel reinforcement cage sets up in concrete cylinder, and concrete cylinder sets up in bottom plate upper surface middle part, and steel reinforcement cage bottom end fixed connection is at the bottom plate upper surface, and the bottom plate is equipped with the through-hole all around, and the through-hole is used for wearing to establish bolt and the ground beam and reserves bolt hole threaded connection. The utility model provides an inspection hole stand improves construction quality to can practice thrift the time limit for a project, save the cost.

Description

Inspection pit stand

Technical Field

The utility model relates to an urban rail construction technical field especially relates to an inspection hole stand.

Background

The urban rail transit parking lot and the vehicle section have the parking and maintenance functions, wherein the column type inspection pit is the main place for train parking and train inspection, the steel rail is erected on the upright post, the train stops on the inspection pit along the steel rail, and maintenance personnel can inspect various conditions of the train bottom in the pit.

Current inspection hole stand is cast in situ concrete stand usually, reserves the reinforcing bar through underground structure and is connected with stand steel reinforcement cage, and the formwork cast in situ concrete forms all around, and some areas also adopt the prefabricated stand of producer, still need reserve the reinforcing bar and be connected with the steel reinforcement cage of ground structure, equally need the formwork to cast in situ concrete pours prefabricated stand bottom together through reserving the reinforcing bar with the terrace structure. The on-site casting concrete upright post needs a temporary formwork and steel bars are bound, the quality of the upright post is difficult to control, appearance defects such as rough surface, uneven upright post and the like easily occur, the on-site casting concrete upright post is limited by construction conditions, the on-site formwork casting space is narrow and small, the concrete is difficult to vibrate and compact, the actual bearing capacity is low, the cross section size needs to be increased to improve the bearing capacity, the upright post size is large, the consumed reinforced concrete materials are more, the on-site casting concrete upright post is firstly structured by professionals, then steel bar cages of the upright post and a ground beam under the ground post are bound, then the formwork is supported and the floor is poured, the construction period is long, a large amount of time and manpower are consumed, and the on-site construction cooperation of.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inspection hole stand to solve the problem that above-mentioned prior art exists, improve construction quality, and can practice thrift the time limit for a project, save the cost.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides an inspection pit stand, including precast concrete stand, precast concrete stand includes concrete cylinder, bottom plate and steel reinforcement cage, the steel reinforcement cage set up in the concrete cylinder, the concrete cylinder set up in bottom plate upper surface middle part, steel reinforcement cage bottom end fixed connection be in the bottom plate upper surface, the bottom plate is equipped with the through-hole all around, the through-hole is used for wearing to establish bolt and ground beam reservation bolt hole threaded connection.

Preferably, the steel reinforcement cage includes L shape muscle, straight muscle and stirrup, the minor face fixed connection of L shape muscle is in the bottom plate upper surface, the long limit perpendicular to of L shape muscle the bottom plate sets up, straight muscle perpendicular to the bottom plate sets up, along the perpendicular to the bottom plate direction is in the long limit of L shape muscle with fixedly connected with is established to straight muscle overcoat is a plurality of the stirrup.

Preferably, the bottom plate is square, the concrete cylinder is square, four sides of square with four sides of bottom plate are parallel respectively square four corner positions of post respectively are equipped with one L shape muscle, each the minor face orientation of L shape muscle square bottom surface center sets up, two of one side be equipped with one between the L shape muscle straight muscle, two of opposite side be equipped with one between the L shape muscle straight muscle, the stirrup cover is established and is fixed in four the long limit of L shape muscle and two outside the straight muscle, the stirrup is square.

Preferably, the bottom plate is a steel plate, and the reinforcement cage is welded to the bottom plate.

Preferably, the distance between two adjacent stirrups is 50-70 mm.

Preferably, the four corners of the bottom plate are respectively provided with one through hole, and the diameter of each through hole is 20-24 mm.

Preferably, the diameters of the L-shaped ribs and the straight ribs are 18-20 mm.

Preferably, the concrete column is C45 concrete.

The utility model discloses for prior art gain following technological effect:

the utility model provides an inspection pit upright post, which comprises a precast concrete upright post, and is characterized in that a special mould is utilized for reverse moulding and centralized maintenance, so that the quality and the aesthetic degree of the concrete upright post can be improved, the precast concrete upright post of a manufacturer can be made into the minimum size meeting the installation requirement, the structure bearing capacity of the post body is ensured to be basically unchanged, the material consumption is saved, the defects that the binding reinforcement cage, the template and the pouring concrete and maintenance time of the upright post can be saved due to the narrow cast-in-place space of an on-site template is avoided, the actual bearing capacity is lower, the cross-section size needs to be increased to improve the bearing capacity, and more reinforced concrete materials are consumed are avoided, the binding reinforcement cage, the template and the pouring concrete and the maintenance time of the upright post can be saved by adopting the precast concrete upright post, the binding reinforcement cage, the template and the pouring concrete and the maintenance time can, still need the formwork to cast in situ concrete, the engineering time is long, and the inspection hole stand of this application, be equipped with be used for with grade beam fixed connection's bottom plate, when the grade beam structure make the back, only need pass the through-hole on the bottom plate with the grade beam reserve bolt hole threaded connection fastening can, connect convenient and fast, can practice thrift a large amount of time cost and human cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view of an inspection pit column according to the present invention;

fig. 2 is a schematic view of a front view structure of the inspection pit column provided by the present invention;

fig. 3 is a schematic structural view of an L-shaped rib in an upright post of an inspection pit provided by the present invention;

fig. 4 is a schematic structural view of a straight rib in an inspection pit column provided by the present invention;

in the figure: 1-concrete column, 2-bottom plate, 3-reinforcement cage, 4-through hole, 5-L shaped reinforcement, 6-straight reinforcement and 7-stirrup.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing an inspection hole stand to solve the problem that prior art exists, improve construction quality, and can practice thrift the time limit for a project, save the cost.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 ~ 2, this embodiment provides an inspection hole stand, including precast concrete stand, precast concrete stand includes concrete cylinder 1, bottom plate 2 and steel reinforcement cage 3, and steel reinforcement cage 3 sets up in concrete cylinder 1, and concrete cylinder 1 sets up in 2 upper surface middle parts of bottom plate, and 3 bottom fixed connection of steel reinforcement cage are at 2 upper surfaces of bottom plate, and bottom plate 2 is equipped with through-hole 4 all around, and through-hole 4 is used for wearing to establish bolt and ground roof beam and reserves bolt hole threaded connection.

The inspection pit upright column comprises a precast concrete upright column, the precast concrete upright column can be manufactured into the minimum size meeting the installation requirement by a manufacturer, the structural bearing capacity of the column body is basically unchanged, the material consumption is saved, the defect that the consumption of reinforced concrete materials is high due to the fact that the cast-in-place space of a site formwork is narrow and small, concrete is difficult to vibrate and compact, the actual bearing capacity is low, the cross section size needs to be increased to improve the bearing capacity is overcome, the binding reinforcement cage, the formwork, the pouring concrete and the maintenance time of the upright column can be saved by adopting the precast concrete upright column, the binding reinforcement cage, the formwork, the pouring concrete and the maintenance time are saved in a precast yard, the binding reinforcement cage, the formwork, the pouring concrete and the maintenance are not needed when the construction operation is carried out in the construction site, the construction time and the labor cost are saved, moreover, traditional prefabricated stand bottom is poured as an organic wholely through reserving the reinforcing bar and terrace structure, still needs the formwork to cast in situ concrete, the construction period is long, and the inspection hole stand of this application, including the precast concrete stand, the precast concrete stand is including being used for bottom plate 2 with grade beam fixed connection, when the grade beam structure make the back, only need pass the bolt through-hole 4 on the bottom plate 2 with the grade beam reserve bolt hole threaded connection can, connect convenient and fast, can practice thrift a large amount of time cost and human cost.

As shown in fig. 1 ~ 4, in this embodiment, steel reinforcement cage 3 includes L shape muscle 5, straight muscle 6 and stirrup 7, L shape muscle 5's minor face fixed connection is on 2 upper surfaces of bottom plate, L shape muscle 5's long limit perpendicular to bottom plate 2 sets up, straight muscle 6 perpendicular to bottom plate 2 sets up, establish a plurality of stirrups 7 of fixedly connected with along 2 directions of perpendicular to bottom plate at L shape muscle 5's long limit and the 6 overcoat of straight muscle, fix steel reinforcement cage 3 at 2 upper surfaces of bottom plate, later concreting, guarantee bottom plate 2 and concrete column 1's joint strength.

As shown in fig. 1-2, in this embodiment, bottom plate 2 is square board, concrete column body 1 is square post, four sides of square post are parallel with four sides of bottom plate 2 respectively, respectively be equipped with an L shape muscle 5 in square post four corners position, the minor face of each L shape muscle 5 sets up towards square post bottom surface center, be equipped with a straight muscle 6 between two L shape muscle 5 of one side, be equipped with a straight muscle 6 between two L shape muscle 5 of opposite side, stirrup 7 overlaps establishes outside long limit and two straight muscle 6 that are fixed in four L shape muscle 5, stirrup 7 is square, make steel reinforcement cage 3 atress more even, improve concrete column body 1's bearing capacity.

In this embodiment, bottom plate 2 is the steel sheet, and steel reinforcement cage 3 welds on bottom plate 2, convenient operation connects the fastening.

In this embodiment, two adjacent stirrup 7 intervals are 50 ~ 70mm, and concrete can set up to 60mm, when in actual use, set up different intervals according to actual conditions.

In this embodiment, 2 four corners of bottom plate position respectively are equipped with a through-hole 4, and the diameter of through-hole 4 is 20 ~ 24mm, and is specific, is connected bottom plate 2 with the grade beam with the high strength bolt that the diameter is 22mm, and the rail is installed on concrete column 1, when the rail top height is not enough, can add the height-adjusting backing plate under bottom plate 2, adjusts the rail face elevation.

In this embodiment, the diameter of L shape muscle 5 and straight muscle 6 is 18 ~ 20mm, and specific can select the diameter to be 20 mm's reinforcing bar, according to actual strength demand, selects the reinforcing bar of different diameters to carry out reinforcement cage's ligature.

In this embodiment, the concrete column 1 is C45 concrete, and concrete with other strength can be selected for casting according to actual strength requirements.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. An inspection pit stand column is characterized in that: including the precast concrete stand, the precast concrete stand includes concrete cylinder, bottom plate and steel reinforcement cage, the steel reinforcement cage set up in the concrete cylinder, the concrete cylinder set up in bottom plate upper surface middle part, steel reinforcement cage bottom end fixed connection be in the bottom plate upper surface, the bottom plate is equipped with the through-hole all around, the through-hole is used for wearing to establish bolt and the earth's beam and reserves bolt hole threaded connection.

2. Inspection pit column according to claim 1, characterized in that: the steel reinforcement cage includes L shape muscle, straight muscle and stirrup, the minor face fixed connection of L shape muscle is in the bottom plate upper surface, the long limit perpendicular to of L shape muscle the bottom plate sets up, straight muscle perpendicular to the bottom plate sets up, along the perpendicular to the bottom plate direction is in the long limit of L shape muscle with it is a plurality of to establish fixedly connected with straight muscle overcoat the stirrup.

3. Inspection pit column according to claim 2, characterized in that: the bottom plate is square, the concrete cylinder is square post, four sides of square post respectively with four sides of bottom plate are parallel square post four corners position respectively is equipped with one L shape muscle, each the minor face orientation of L shape muscle square post bottom surface center sets up, two of one side be equipped with one between the L shape muscle straight muscle, two of opposite side be equipped with one between the L shape muscle straight muscle, stirrup cover is established and is fixed in four the long limit and two of L shape muscle outside the straight muscle, the stirrup is square.

4. Inspection pit column according to claim 1, characterized in that: the bottom plate is the steel sheet, the steel reinforcement cage weld in on the bottom plate.

5. Inspection pit column according to claim 2, characterized in that: the distance between every two adjacent stirrups is 50-70 mm.

6. Inspection pit column according to claim 3, characterized in that: the bottom plate four corners position respectively is equipped with one the through-hole, the through-hole diameter is 20 ~ 24 mm.

7. Inspection pit column according to claim 2, characterized in that: the diameters of the L-shaped ribs and the straight ribs are 18-20 mm.

8. Inspection pit column according to claim 1, characterized in that: the concrete column is C45 concrete.