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Thermal power plant boiler pedestal and foundation connection structure and method thereof

A technology for connecting structures and thermal power plants, which is applied in infrastructure engineering, building construction, construction, etc., and can solve problems such as structural safety hazards and failure to meet bearing capacity requirements

Inactive Publication Date: 2010-08-25
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection between the steel column foot and the foundation is generally reserved bolts in the foundation, and then connected to the steel column bottom plate. Due to the large internal force of the steel column foot of the boiler, the bolt connection here cannot meet the bearing capacity requirements, which brings safety hazards to the entire structure

Method used

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  • Thermal power plant boiler pedestal and foundation connection structure and method thereof
  • Thermal power plant boiler pedestal and foundation connection structure and method thereof
  • Thermal power plant boiler pedestal and foundation connection structure and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0011] Embodiment 1. It includes a boiler steel column 1, a foundation insertion bar 2, and a steel column foundation 5. There is an insertion bar 2 in the foundation 5, and a steel embedded part 4 is arranged on the top of the foundation. The steel embedded part 4 is welded to the boiler steel column 1, The foundation rib 2 is welded to the boiler steel column 1.

Embodiment 2

[0012] Embodiment 2. In order to facilitate the welded connection between the boiler steel column 1 and the steel embedded parts 4 and better stress, on the basis of the above structure, a steel column foot plate 3 is added under the boiler steel column 1. The steel column foot plate 3 First weld with the boiler steel column 1, and then weld the steel column foot plate 3 with the embedded steel part 4.

Embodiment 3

[0013] Embodiment 3. In order to improve and enhance the stress situation and increase the strength of the boiler steel column 1, on the basis of the structure of the above-mentioned embodiment 1 or embodiment 2, add 4 steel column foot shoe plates 6 around the boiler steel column 1 , The steel column foot shoe plate 6 is welded and connected with the boiler steel column 1, the steel embedded part 4 or the steel column foot plate 3.

[0014] The method of the present invention is as follows: first pre-set the ribs 2 at the foundation position and then pour the foundation 5, pre-embed the embedded steel parts 4 in the foundation 5, weld the boiler steel column 1 and the embedded steel parts 4 of the foundation, and then insert the ribs 2 into the foundation. It is welded on the steel column 1, and finally the concrete short column on the upper part of the foundation 2 is poured. Foundation 1 is poured with C30 concrete. In the case of a structure such as embodiment two, the st...

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PUM

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Abstract

The invention discloses a thermal power plant boiler pedestal and foundation connection structure and method thereof. The structure thereof comprises: a steel dowel (2) is arranged in a foundation (5) on the top of which a steel embedded part (4) is arranged; the steel embedded part (4) is welded with a boiler steel column (1); and the foundation steel dowel (2) is welded with the boiler steel column (1). A steel pedestal bottom slab (3) is arranged on the steel embedded part (4) which is welded with the steel pedestal bottom slab (3); and the boiler steel column (1) is welded with the steel pedestal bottom slab (3). The method thereof comprises: the steel dowel (2) is firstly pre-arranged at a foundation location, and then the lower part of the foundation (5) is cast; the steel embedded part (4) is pre-embedded in the foundation (5); the boiler steel column (1) is welded with the foundation steel embedded part (4); later the foundation steel dowel (2) is welded on the steel column (1); finally, the short column of the concrete on the upper part of the foundation (5) is cast. The invention causes the boiler steel column pedestal to be rigidly linked with the foundation, transmits the load on the upper part structure of the boiler, and ensures the safety of the plant buildings and the functional needs thereof.

Description

technical field [0001] The invention relates to a connection structure between a steel column base of a thermal power plant boiler and a foundation and a method thereof. technical background [0002] According to the needs of thermal engineering, boilers in thermal power plants are generally 40-meter-high steel columns, and due to the expansion of water vapor, the internal force transmitted to the column feet is generally very large. In order to allow the internal force of the column foot to be transmitted to the foundation, a rigid connection is adopted between the steel column foot and the foundation. The connection between the steel column foot and the foundation is generally reserved bolts in the foundation, and then connected to the steel column bottom plate. Due to the large internal force of the steel column foot of the boiler, the bolt connection here cannot meet the bearing capacity requirements, which brings safety hazards to the entire structure. Contents of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/44E04B1/38
Inventor 宋泽恒
Owner GUIYANG AL-MG DESIGN & RES INST