阅读说明：本技术 一种用于制作碾压混凝土拱坝振动台模型的装置 (Device for manufacturing roller compacted concrete arch dam vibration table model ) 是由 张宇 卢召红 周利剑 杜伟强 于 2020-05-12 设计创作，主要内容包括：一种用于制作碾压混凝土拱坝振动台模型的装置,涉及水工工程技术领域,它包括单块拱形钢模板、单层拱形组合钢模板、拱坝整体组合钢模板、钢筋混凝土山体和钢筋混凝土底板,所述单层拱形组合钢模板是由若干单块拱形钢模板通过水平向螺栓连接而成；所述拱坝整体组合钢模板是由若干单层拱形组合钢模板通过竖向螺栓连接而成；所述的钢筋混凝土底板与通过螺栓振动台连接；所述的钢筋混凝土山体通过螺栓与钢筋混凝土底板连接,钢筋混凝土山体通过螺栓与拱坝整体组合钢模板连接。本于制作碾压混凝土拱坝振动台模型的装置解决了碾压混凝土拱坝振动台模型多层结构性质模拟的问题。(A device for manufacturing a roller compacted concrete arch dam vibrating table model relates to the technical field of hydraulic engineering and comprises a single arched steel template, a single-layer arched combined steel template, an arched dam integral combined steel template, a reinforced concrete mountain and a reinforced concrete bottom plate, wherein the single-layer arched combined steel template is formed by connecting a plurality of single arched steel templates through horizontal bolts; the arch dam integral combined steel formwork is formed by connecting a plurality of single-layer arch combined steel formworks through vertical bolts; the reinforced concrete bottom plate is connected with the vibrating table through a bolt; the reinforced concrete mountain body is connected with the reinforced concrete bottom plate through bolts, and the reinforced concrete mountain body is connected with the integral combined steel formwork of the arch dam through bolts. The device for manufacturing the roller compacted concrete arch dam shaking table model solves the problem of simulation of the multilayer structure property of the roller compacted concrete arch dam shaking table model.)

1. The utility model provides a device for making roller compacted concrete arch dam shaking table model which characterized in that: the steel formwork comprises a single arched steel formwork (1), a single-layer arched combined steel formwork (2), an arched dam integral combined steel formwork (3), a reinforced concrete mountain (4) and a reinforced concrete bottom plate (5), wherein the single-layer arched combined steel formwork (2) is formed by connecting a plurality of single arched steel formworks (1) through horizontal bolts; the arch dam integral combined steel formwork (3) is formed by connecting a plurality of single-layer arch combined steel formworks (2) through vertical bolts; the reinforced concrete bottom plate (5) is connected with the vibrating table through a bolt; the reinforced concrete mountain body (4) is connected with the reinforced concrete bottom plate (5) through bolts, and the reinforced concrete mountain body (4) is connected with the arch dam integral combined steel formwork (3) through bolts.

2. An apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the reinforced concrete bottom plate (5) is formed by casting on site on the table top of the vibrating table, the length and the width of the reinforced concrete bottom plate (5) are determined according to the size of the vibrating table, the height is 150mm, and bolt holes are reserved before casting.

3. An apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the reinforced concrete mountain body (4) is formed by casting on the reinforced concrete bottom plate (5) in situ, the height of the reinforced concrete mountain body (4) is equal to that of the arch dam model, the length and the width of the reinforced concrete mountain body (4) are determined according to the size and the bearing capacity of the vibration table, and bolt holes are reserved before casting.

4. An apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the integral combined steel formwork (3) of the arch dam is formed by connecting a plurality of single-layer arched combined steel formworks (2) through vertical bolts, the height of each single-layer arched combined steel formwork (2) is 150-300 mm, and the specific height is determined according to the shape and the size of a dam body.

5. An apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the single-layer arched combined steel templates (2) are formed by connecting a plurality of single arched steel templates (1) through horizontal bolts, and the bolts used for connecting the single arched steel templates (1) are not less than 2 and are 150mm apart.

6. An apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the single arched steel template (1) is formed by machining a steel plate with the thickness of 15mm according to the size of an arch dam, the periphery of the arched steel template is welded with steel strips with the same thickness, the width of each steel strip is 30mm, and bolt holes are reserved in the steel strips.

7. A method of making an apparatus for making a roller compacted concrete arch dam shaker table model according to claim 1, wherein: the method comprises the following steps:

manufacturing a reinforced concrete bottom plate (5), erecting a formwork on the table top of the vibration table, laying reinforcing steel bars, casting the reinforced concrete bottom plate with the thickness of 150mm in situ, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days;

and manufacturing a reinforced concrete mountain body (4), erecting a formwork on the reinforced concrete bottom plate after maintenance, paving reinforcing steel bars, casting the reinforced concrete mountain body on site, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days.

8. The height of the mountain is determined according to the size of the arch dam vibration table model, and the width and the length of the mountain are determined according to the size and the bearing capacity of the vibration table;

the arch dam model is designed in a layered and block mode, the dam body model is divided into a plurality of layers along the height direction according to the parting form and the body height of the arch dam, and each layer is divided into a plurality of blocks along the horizontal direction according to the arch length and the parting condition;

manufacturing a single arched steel template (1), mechanically punching and processing the steel plate with the thickness of 15mm according to the size of an arch dam, welding steel strips with the same thickness and the width of 30mm at the periphery of the arched steel template, reserving bolt connecting holes on the steel strips, and painting the steel template for rust prevention protection;

assembling a single-layer arched combined steel template (2), connecting single arched steel templates at the same height through bolts, checking whether manufacturing defects such as uneven and loose splicing exist, and if the manufacturing defects exist, repairing or manufacturing the arched steel templates at corresponding positions again until the design requirements are met;

assembling the integral combined steel formwork (3) of the arch dam, connecting the assembled single-layer arched combined steel formwork at the bottommost layer with the reinforced concrete mountain body through bolts, and then connecting the single-layer arched combined steel formwork layer by layer through the bolts until the integral combined steel formwork of the arch dam is completed.

The technical field is as follows:

the invention relates to the technical field of hydraulic engineering, in particular to a device for manufacturing a roller compacted concrete arch dam vibration table model.

Background art:

the construction material and the construction process of the roller compacted concrete dam are obviously different from those of a normal concrete dam, the occurrence of a roller compacted layer enables the dam to have the multilayer structure property, and the damage mechanism under strong shock is obviously different from that of the normal concrete dam. The earthquake damage mechanism research of the roller compacted concrete arch dam is carried out by utilizing a vibration table model test, the general vibration table model is integrally cast for a dam body structure, and the defect is that the influence of the characters of a roller compacted layer is not considered. When a concrete arch dam vibrating table model is poured, how to realize the simulation of the rolling bedding surface characters through one device is a problem to be solved urgently.

The invention content is as follows:

the invention aims to overcome the defects in the prior art, and provides the device for manufacturing the roller compacted concrete arch dam shaking table model, which is used for simulating the construction characteristics of layered rolling of the roller compacted concrete dam and solves the problem of the simulation of the multilayer structure property of the roller compacted concrete arch dam shaking table model.

The technical scheme adopted by the invention is as follows: a device for manufacturing a roller compacted concrete arch dam vibrating table model comprises a single arched steel template, a single-layer arched combined steel template, an arch dam integral combined steel template, a reinforced concrete mountain body and a reinforced concrete bottom plate, wherein the single-layer arched combined steel template is formed by connecting a plurality of single arched steel templates through horizontal bolts; the arch dam integral combined steel formwork is formed by connecting a plurality of single-layer arch combined steel formworks through vertical bolts; the reinforced concrete bottom plate is connected with the vibrating table through a bolt; the reinforced concrete mountain body is connected with the reinforced concrete bottom plate through bolts, and the reinforced concrete mountain body is connected with the integral combined steel formwork of the arch dam through bolts.

The reinforced concrete bottom plate is formed by casting on site on the table top of the vibrating table, the length and the width of the reinforced concrete bottom plate are determined according to the size of the vibrating table, the height is 150mm, and bolt holes are reserved before casting.

The reinforced concrete mountain is formed by casting on the reinforced concrete bottom plate in situ, the height of the reinforced concrete mountain is equal to that of the arch dam model, the length and the width of the reinforced concrete mountain are determined according to the size and the bearing capacity of the vibration table, and bolt holes are reserved before casting.

The integral combined steel formwork of the arch dam is formed by connecting a plurality of single-layer arched combined steel formworks through vertical bolts, the height of each single-layer arched combined steel formwork is 150-300 mm, and the specific height is determined according to the shape and the size of a dam body.

The single-layer arched combined steel formwork is formed by horizontally connecting a plurality of single arched steel formworks through bolts, the number of the bolts used for connecting the single arched steel formworks is not less than 2, and the distance between the bolts is 150 mm.

The single arched steel template is formed by machining a steel plate with the thickness of 15mm according to the size of the arch dam, the periphery of the arched steel template is welded with a steel plate strip with the same thickness, the width of the steel plate strip is 30mm, and bolt holes are reserved in the steel plate strip.

The preparation method comprises the following steps:

1) manufacturing a reinforced concrete bottom plate, erecting a formwork on the table top of the vibration table, laying reinforcing steel bars, casting the reinforced concrete bottom plate with the thickness of 150mm in situ, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days;

2) and manufacturing a reinforced concrete mountain, erecting a formwork on the reinforced concrete bottom plate after maintenance, paving reinforcing steel bars, casting the reinforced concrete mountain on site, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days. The height of the mountain is determined according to the size of the arch dam vibration table model, and the width and the length of the mountain are determined according to the size and the bearing capacity of the vibration table;

3) the arch dam model is designed in a layered and block mode, the dam body model is divided into a plurality of layers along the height direction according to the parting form and the body height of the arch dam, and each layer is divided into a plurality of blocks along the horizontal direction according to the arch length and the parting condition;

4) manufacturing a single arched steel template, mechanically punching and processing the steel plate with the thickness of 15mm according to the size of an arch dam, welding steel plate strips with the same thickness and the width of 30mm at the periphery of the arched steel template, reserving bolt connecting holes on the steel plate strips, and painting the steel template for rust prevention protection;

5) assembling single-layer arched combined steel templates, connecting single arched steel templates at the same height through bolts, checking whether manufacturing defects such as uneven and loose splicing exist, and if the manufacturing defects exist, repairing or manufacturing the arched steel templates at corresponding positions again until the design requirements are met;

6) assembling the integral combined steel formwork of the arch dam, connecting the assembled single-layer arched combined steel formwork at the bottommost layer with a reinforced concrete mountain body through bolts, and then connecting the single-layer arched combined steel formwork layer by layer through the bolts until the integral combined steel formwork of the arch dam is completed.

The invention has the beneficial effects that: the device has the advantages of simple process, convenient operation, easy maintenance, repeated use and low cost, and can realize the simulation of the properties of the multilayer structure of the roller compacted concrete arch dam.

Description of the drawings:

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a block diagram of the present invention of a single arched steel form;

FIG. 5 is a structural diagram of a single-layer arched combined steel form of the present invention;

fig. 6 is a structural view of an integral combined steel formwork of the arch dam of the present invention.

The specific implementation mode is as follows:

referring to the figures, the device for manufacturing the roller compacted concrete arch dam vibrating table model comprises a single arched steel template 1, a single-layer arched combined steel template 2, an arched dam integral combined steel template 3, a reinforced concrete mountain 4 and a reinforced concrete bottom plate 5, wherein the single-layer arched combined steel template 2 is formed by connecting a plurality of single arched steel templates 1 through horizontal bolts; the arch dam integral combined steel formwork 3 is formed by connecting a plurality of single-layer arch combined steel formworks 2 through vertical bolts; the reinforced concrete bottom plate 5 is connected with a vibrating table through a bolt; the reinforced concrete mountain 4 is connected with the reinforced concrete bottom plate 5 through bolts, and the reinforced concrete mountain 4 is connected with the arch dam integral combined steel formwork 3 through bolts. The reinforced concrete bottom plate 5 is formed by casting on site on the table top of the vibrating table, the length and the width of the reinforced concrete bottom plate 5 are determined according to the size of the vibrating table, the height is 150mm, and bolt holes are reserved before casting. The reinforced concrete mountain body 4 is formed by casting on the reinforced concrete bottom plate 5 in situ, the height of the reinforced concrete mountain body 4 is equal to that of the arch dam model, the length and the width of the reinforced concrete mountain body 4 are determined according to the size and the bearing capacity of the vibration table, and bolt holes are reserved before casting. The integral combined steel formwork 3 of the arch dam is formed by connecting a plurality of single-layer arched combined steel formworks 2 through vertical bolts, the height of each single-layer arched combined steel formwork 2 is 150-300 mm, and the specific height is determined according to the shape and the size of the dam body. The single-layer arched combined steel template 2 is formed by connecting a plurality of single arched steel templates 1 through horizontal bolts, and the bolts used for connecting the single arched steel templates 1 are not less than 2 and are at intervals of 150 mm. The single arched steel template 1 is formed by machining a steel plate with the thickness of 15mm according to the size of an arch dam, the periphery of the arched steel template is welded with steel strips with the same thickness, the width of each steel strip is 30mm, and bolt holes are reserved in the steel strips.

The preparation method comprises the following steps:

1) manufacturing a reinforced concrete bottom plate 5, erecting a formwork on the table top of the vibration table, laying reinforcing steel bars, casting the reinforced concrete bottom plate with the thickness of 150mm in situ, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days;

2) and manufacturing a reinforced concrete mountain body 4, erecting a formwork on the reinforced concrete bottom plate after maintenance, paving reinforcing steel bars, casting the reinforced concrete mountain body on site, presetting bolt connecting holes before casting, and performing standard maintenance for 28 days. The height of the mountain is determined according to the size of the arch dam vibration table model, and the width and the length of the mountain are determined according to the size and the bearing capacity of the vibration table;

3) the arch dam model is designed in a layered and block mode, the dam body model is divided into a plurality of layers along the height direction according to the parting form and the body height of the arch dam, and each layer is divided into a plurality of blocks along the horizontal direction according to the arch length and the parting condition;

4) manufacturing a single arched steel template 1, mechanically punching and processing a steel plate with the thickness of 15mm according to the size of an arch dam, welding steel plate strips with the same thickness and the width of 30mm at the periphery of the arched steel template, reserving bolt connecting holes on the steel plate strips, and painting the steel template for rust prevention protection;

5) assembling the single-layer arched combined steel templates 2, connecting single arched steel templates at the same height through bolts, checking whether manufacturing defects such as uneven and loose splicing exist, and if the manufacturing defects exist, repairing or manufacturing the arched steel templates at corresponding positions again until the design requirements are met;

6) assembling the integral combined steel formwork 3 of the arch dam, connecting the assembled single-layer arch combined steel formwork at the bottommost layer with the reinforced concrete mountain body through bolts, and then connecting the single-layer arch combined steel formwork layer by layer through the bolts until the integral combined steel formwork of the arch dam is completed.

The device is formed by connecting an arch dam integral combined steel template 3, a reinforced concrete mountain body 4 and a reinforced concrete bottom plate 5 through bolts.

When the device for manufacturing the roller compacted concrete arch dam vibration table model is manufactured, the reinforced concrete bottom plate 5 is connected with the vibration table through the bolts, the reinforced concrete mountain body 4 is connected with the reinforced concrete bottom plate 5 through the bolts, and finally the reinforced concrete mountain body 3 is connected with the arch dam integral combined steel template 3 through the bolts.

The reinforced concrete bottom plate 5 is cast in situ on the table top of the vibration table and is formed by standard maintenance; the reinforced concrete mountain 4 is cast in situ on the reinforced concrete bottom plate 5 after maintenance, and is formed by standard maintenance; the table surface of the vibration table and the reinforced concrete bottom plate 5 as well as the reinforced concrete bottom plate 5 and the reinforced concrete mountain body 4 are fixedly connected through high-strength bolts; the single arched steel template 1 is machined according to the size of an arch dam, steel plate strips with the same thickness are welded around the arched steel template, and bolt holes are reserved on the steel plate strips; a single arched steel template 1 at the same elevation is connected through horizontal bolts to form a single-layer arched combined steel template 2; the single-layer arched combined steel templates 2 at different elevations are connected through vertical bolts to form an integral combined steel template 3 of the arch dam.

When the earthquake damage mechanism test research of the roller compacted concrete arch dam is carried out on the vibration table, the vibration table dam body model is generally manufactured by adopting an integral pouring method. The manufacturing method of the roller compacted concrete dam model has a plurality of defects which are not overcome, and one of the defects is the simulation problem of the roller compacted layer character. Neglecting the character simulation of the rolling layer during the earthquake force model test, the sequence and the distribution rule of the cracks of the dam body are changed, and therefore the determination of the dam failure mode and the test result is influenced.

In order to simulate the influence of the properties of a rolling layer on the earthquake damage mechanism of the rolling concrete arch dam vibration table during a model test, the combined steel template device assembled layer by layer is designed, the dam body model can be sequentially poured from bottom to top when the model dam body is poured, and the layered rolling construction characteristics are simulated. The integral combined steel formwork is formed by connecting and combining single steel formworks in a partitioning and layering mode, a bottom steel formwork is firstly assembled and connected with a reinforced concrete mountain, a model at the elevation is manufactured in a layering rolling mode, then an upper steel formwork is assembled layer by layer and the model is manufactured until the integral arch dam model is completed, and therefore the construction effect of layering and rolling of the rolled concrete dam is simulated. When the vibration table test is carried out, the roller compacted concrete dam model is manufactured by layered rolling, the existence of the rolling layer surface reduces the strength of the model material body, so that the appearance sequence and the distribution rule of cracks of the dam body are changed, and the properties of the roller compacted concrete multilayer structure can be reflected.

To sum up, this device in preparation roller compacted concrete arch dam shaking table model simple process, convenient operation can realize the simulation of roller compacted concrete arch dam multilayer structure nature, and the device is maintained easily, can used repeatedly many times, low cost.