CN210263164U - Steel beam for foundation static load test detection and counter-force system - Google Patents

Abstract

The utility model discloses a foundation static test detects uses girder steel and counter-force system, including girder steel girder, girder steel secondary beam and jack, girder steel girder, girder steel secondary beam horizontal parallel place on the precast concrete piece, and the precast concrete piece is placed subaerially at the level, and the girder steel girder is placed between two girder steel secondary beams, and girder steel girder, girder steel secondary beam all are perpendicular with the precast concrete piece, and girder steel girder, girder steel secondary beam top pile up precast concrete piece balancing weight. The precast concrete blocks below are combined to form two groups of buttress for supporting the upper steel beam and the balancing weight and transmitting the load to the ground. And a jack is arranged between the two groups of buttress piers, the lower end of the jack is arranged at the upper end of the pile foundation, the lower end of the pile foundation is inserted into a horizontal underground designed rock stratum, and the upper end of the jack is contacted with the bottom of the steel beam main beam. The utility model discloses a girder steel quantity obviously reduces, and the secondary beam also can be little tonnage girder or 2 secondary beams merge and replace 1 girder to use, and girder steel cost of manufacture reduces 2/3.

Description

Steel beam for foundation static load test detection and counter-force system

Technical Field

The utility model relates to a construction engineering quality detects technical field, specifically is a foundation static test detects uses girder steel and counter-force system.

Background

The clump weight adopted in the existing test system is short in size, massive, large in quantity, scattered and piled, and poor in integrity; because the balance weight block has poor integrity, a large number of secondary beams are required to bear the weight to prevent collapse and scattering; the main beam and the secondary beam are obviously different and can not be used commonly; the number of the stacking blocks and the steel beams is large, so that the hoisting times are large, the installation is complicated, the integrity is poor, and the installation and disassembly periods are long.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a foundation static test detects uses girder steel and counter-force system to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a steel beam for foundation static test detection comprises a steel beam main beam, a steel beam secondary beam and a jack, the steel beam main beam and the steel beam secondary beam are horizontally arranged on the precast concrete block in parallel, the precast concrete block is arranged on the horizontal ground, the steel beam main beam is arranged between the two steel beam secondary beams, the steel beam main beam and the steel beam secondary beam are both vertical to the precast concrete blocks, precast concrete counter weights are stacked above the steel beam main beam and the steel beam secondary beam, the lower precast concrete blocks are combined to form two groups of buttresses, used for supporting the upper steel beam and the balancing weight and transmitting the load to the ground, a jack is arranged between the two groups of buttresses, the lower end of the jack is arranged at the upper end of the pile foundation, the lower end of the pile foundation is inserted into a designed rock stratum under the horizontal ground, the jack upper end and girder steel girder bottom contact still include instrumentation, instrumentation passes through the data line with the jack and is connected.

Preferably, the girder steel girder includes first roof beam body, first roof beam body adopts the cuboid structure, the welding has many first strengthening ribs on the first roof beam body outer wall, first roof beam body length is 8000mm, highly is 1000mm, and the width is 400 mm.

Preferably, the girder steel secondary beam includes the second roof beam body, the second roof beam body adopts the cuboid structure, the welding has many second strengthening ribs on the second roof beam body outer wall, second roof beam body length is 8000mm, highly is 1000mm, and the width is 400 mm.

Preferably, the concrete balancing weight adopts a cuboid structure, and the stress reinforcing steel bars are arranged in the concrete balancing weight.

Preferably, the jack adopts an electric double-loop hydraulic jack.

Preferably, a counterforce system comprises the steel beam.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the advantages that the number of the steel beams is obviously reduced, the universality is strong, the secondary beams can be used as small-tonnage main beams or 2 secondary beams to be combined to replace 1 main beam, the manufacturing cost of the steel beams is reduced by 2/3, and the hoisting and dismounting time is obviously shortened compared with the traditional test device; in addition, the concrete balancing weight is made into a standard strip shape, the size is uniform, stress steel bars are arranged inside the concrete balancing weight, the concrete balancing weight has certain bending resistance and shearing resistance, and the stacking platform is good in overall stability, safe and reliable.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is an internal structural view of the box girder of the present invention;

FIG. 4 is another structural view of the inside of the box girder according to the present invention;

FIG. 5 is a structural view of an I-beam profile;

fig. 6 is a structural diagram of the shape of an I-shaped secondary beam.

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.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a ground foundation is girder steel for static test detection, includes girder steel girder 1, girder steel secondary beam 2 and jack 3, and girder steel girder 1, 2 horizontal parallel of girder steel secondary beam place on precast concrete piece 4, precast concrete piece 4 is placed on the level subaerial, girder steel girder 1 is placed between two girder steel secondary beams 2, just girder steel girder 1, girder steel secondary beam 2 all are perpendicular with precast concrete piece 4, girder steel girder 1, 2 tops of girder steel secondary beam pile up precast concrete balancing weight 5, precast concrete piece 4 sets up and forms two sets of buttresses for support upper portion girder steel and balancing weight, and transmit the load for ground. Install jack 3 between two sets of buttress, the 3 lower extremes of jack are installed in 6 upper ends of pile foundation, 6 lower extremes of pile foundation insert in the design rock stratum of level subaerial, 3 upper ends of jack and the contact of 1 bottoms of girder steel girder, still include instrumentation, instrumentation and jack pass through the data line and are connected. The jack 3 adopts an electric double-loop hydraulic jack.

In the utility model, the steel girder 1 comprises a first girder body 7, the first girder body 7 adopts a cuboid structure, a plurality of first reinforcing ribs 8 are welded on the outer wall of the first girder body 7, the length of the first girder body 7 is 8000mm, the height is 1000mm, and the width is 400 mm; the steel beam secondary beam 2 comprises a second beam body 9, the second beam body 9 is of a cuboid structure, a plurality of second strengthening ribs 10 are welded on the outer wall of the second beam body 9, the length of the second beam body 9 is 8000mm, the height of the second beam body is 1000mm, and the width of the second beam body is 400 mm. The utility model provides a girder steel girder and girder steel secondary beam bearing capacity are different, but overall dimension is unified, and the commonality is strong. When a large-tonnage static load test is met, 1 main beam can be added to form a double-main-beam system, and the rest of the double-main-beam system does not need to be changed.

Furthermore, the utility model discloses in, concrete balancing weight 5 adopts the cuboid structure, the inside configuration atress reinforcing bar of concrete balancing weight 5. The utility model discloses concrete balancing weight preparation standard rectangular shape, the size is unified, and inside configuration atress reinforcing bar has certain bending resistance, anti-shear capacity.

The utility model also discloses a counter-force system, this counter-force system include above-mentioned girder steel structure.

In the static load test process, the force transmission path for loading the test pile body (or the natural foundation and the composite foundation) is as follows: the load of the multiple precast concrete counter weights stacked on the upper part is transmitted to the jack through the main beam, and then the load is transmitted to the lower pile body through the jack, so that a static load loading test is completed. In the loading process of the test pile body (or a natural foundation and a composite foundation), the steel beam main beam and the steel beam secondary beam are not in contact with each other and directly transfer force. The upper and lower surfaces of the steel beam main beam and the steel beam secondary beam are respectively positioned on the same horizontal plane, so that the situation that the steel beam main beam and the steel beam secondary beam are stacked up and down and directly contacted with a conduction load does not exist.

To sum up, the utility model discloses a girder steel quantity obviously reduces, and the commonality is strong, and the secondary beam also can be done little tonnage girder or 2 secondary beams and merge and replace 1 girder and use, and girder steel cost of manufacture reduces 2/3, compares obviously to shorten hoist and mount, dismantlement time with traditional testing arrangement moreover.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a ground basis static test detects uses girder steel, includes girder steel girder (1), girder steel secondary beam (2) and jack (3), its characterized in that: the steel beam main beam (1) and the steel beam secondary beam (2) are horizontally and parallelly placed on a precast concrete block (4), the precast concrete block (4) is placed on the horizontal ground, the steel beam main beam (1) is placed between the two steel beam secondary beams (2), the steel beam main beam (1) and the steel beam secondary beam (2) are perpendicular to the precast concrete block (4), precast concrete balancing weights (5) are stacked above the steel beam main beam (1) and the steel beam secondary beam (2), the precast concrete block (4) is provided with two groups to form buttresses, a jack (3) is installed between the two groups of buttresses precast concrete blocks (4), the lower end of the jack (3) is installed at the upper end of a pile foundation (6), the lower end of the pile foundation (6) is inserted into a design rock stratum below the horizontal ground, the upper end of the jack (3) is in contact with the bottom of the steel beam main beam (1), the jack is characterized by further comprising a detection instrument, and the detection instrument is connected with the jack through a data line.

2. The steel beam for foundation static load test detection according to claim 1, wherein: girder steel girder (1) includes first roof beam body (7), first roof beam body (7) adopt the cuboid structure, the welding has many first strengthening ribs (8) on first roof beam body (7) outer wall, first roof beam body (7) length is 8000mm, highly is 1000mm, and the width is 400 mm.

3. The steel beam for foundation static load test detection according to claim 1, wherein: the steel beam secondary beam (2) comprises a second beam body (9), the second beam body (9) is of a cuboid structure, a plurality of second reinforcing ribs (10) are welded to the outer wall of the second beam body (9), the length of the second beam body (9) is 8000mm, the height of the second beam body is 1000mm, and the width of the second beam body is 400 mm.

4. The steel beam for foundation static load test detection according to claim 1, wherein: the concrete balancing weight (5) is of a cuboid structure, and stress steel bars are arranged inside the concrete balancing weight (5).

5. The steel beam for foundation static load test detection according to claim 1, wherein: the jack (3) adopts an electric double-loop hydraulic jack.

6. A counterforce system, characterized by: the counterforce system comprises a steel beam according to any of the claims 1-5 above.

Images