A prefabricated reinforced concrete frame variable section column and its construction method

A technology of reinforced concrete and variable cross-section columns, which is applied in the field preparation of formwork/formwork/work frames, building components, construction, etc. It can solve problems such as the sleeve connection is not firm, achieve strong promotion and application value, and facilitate construction , good strength and stiffness effect

Active Publication Date: 2018-04-13
姚伟华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problem that the longitudinal bars of the prefabricated reinforced concrete frame columns are not firmly connected by sleeves, improve the structural design of the frame columns, realize the welding connection of the longitudinal bars, and completely solve the problem of prefabricated steel bars The problem of connection and fixation of the longitudinal reinforcement of the concrete frame, and at the same time solve the problem of the construction method of the prefabricated reinforced concrete frame column

Method used

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  • A prefabricated reinforced concrete frame variable section column and its construction method
  • A prefabricated reinforced concrete frame variable section column and its construction method
  • A prefabricated reinforced concrete frame variable section column and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 As shown, a prefabricated reinforced concrete frame variable cross-section column of the present invention includes an upper column section 11 and a lower section 12 of the column; The column inner stirrups 102 and peripheral stirrups 103 are bound firmly to each other; the longitudinal bars 101 protrude from the top of the column; the size of the concrete layer around the lower section 12 of the column is uniformly reduced to form a core column 13, and the exposed longitudinal bars 101, peripheral stirrups 103 and parts The inner stirrup 102 of the column makes the entire column a column with a variable cross-section with a large upper part and a smaller lower part; the inner stirrups of the lower section of the column 12 protrude from the periphery of the core column 13 and are integrated with the outer stirrups 103 of the column; the 12 longitudinal bars of the lower section of each column 101 and the longitudinal reinforcement 101 of the upper secti...

Embodiment 2

[0058] Such as figure 2 , image 3As shown, a manufacturing mold for a prefabricated reinforced concrete frame variable-section column described in Example 1 of the present invention, the mold includes a column upper section mold 21 and a core column mold 22, and is characterized in that: the column upper section mold 21 includes variable section upper baffle 201, variable section side baffle 202, variable section lower baffle 203, column upper section side template 211, column top outer baffle 212, column top outer baffle U-shaped hoop 213, outer mold tie rod 204 . Pull rod fastener 205, wherein, the column upper section side formwork 211 and the variable section side baffle 202 are two identical plates with left and right symmetry; the variable section upper baffle 201, the variable section side baffle 202, The lower baffle plate 203 with variable section, the side formwork 211 of the upper section of the column, the outer baffle plate 212 of the column top and the ground ...

Embodiment 3

[0060] Such as Figure 4 and Figure 5 As shown, a manufacturing mold for a prefabricated reinforced concrete frame variable-section column described in Example 1 of the present invention is based on Example 2, and several outer rails are vertically arranged along the main body width of the mold. The sleeve through-hole 2111 through which the pull rod 204 and the sleeve 208 penetrate, the sleeve through-hole 2111 runs through the upper side formwork 211 of the left and right columns or the upper formwork 221 of the core column, the middle formwork 222 of the core column, and the lower formwork 223 of the core column The casing 208 is installed in the through hole 2111 of the casing; the outer mold tie rod 204 is a pull screw, which passes through the casing 208, and after adding gaskets 2051 on both sides, fasten with corresponding supporting nuts 2052.

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PUM

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Abstract

The invention relates to an assembly-type reinforced concrete frame variable cross-section column and a construction method thereof, and belongs to the technical field of building materials and building construction. The provided assembly-type reinforced concrete frame variable cross-section column comprises a column upper section (11) and a column lower section (12); longitudinal bars (101), in-column stirrups (102) and peripheral stirrups (103) are pre-embedded and bound firmly; the longitudinal bars (101) extend out of capitals; the longitudinal bars (101) of the column lower section (12) and the longitudinal bars (101) of the column upper section (11) in a base layer are arranged in the same axial direction and are butt jointed one by one. According to the assembly-type reinforced concrete frame variable cross-section column and the construction method thereof, size of concrete layers around the column lower section (12) is evenly reduced to form variable cross-section columns, connecting of the longitudinal bars (101) of the column lower section (12) are exposed, meanwhile, connecting positions of the longitudinal bars (101) around the column lower section (12) are sequentially and alternately staggered for 35d; by adopting welded operation, the problem existed in longitudinal bar sleeve connection of the existing assembly-type reinforced concrete frame column is solved, it is guaranteed that the frame column has excellent strength and stiffness and does not crack during hoisting and carrying, detecting and acceptance of the construction quality of concrete are convenient, integrality is good, and the assembly-type reinforced concrete frame variable cross-section column has the high applying and popularizing value in current assembly-type building.

Description

technical field [0001] The invention belongs to the technical field of building materials and building construction, and relates to a frame column used for building structures, in particular to an assembled reinforced concrete frame variable-section column and a construction method thereof. Background technique [0002] Prefabricated concrete structures refer to concrete structures assembled by prefabricated concrete components through reliable connection methods, including assembled integral concrete structures, fully assembled concrete structures, etc. In construction engineering, it is referred to as prefabricated building; in structural engineering, it is referred to as prefabricated structure. Prefabricated components refer to concrete components prefabricated in factories or on site, such as beams, slabs, walls, columns, balconies, stairs, canopies, etc. [0003] The traditional housing construction technology has low production efficiency, slow construction speed, lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/20E04B1/21E04G13/02
CPCE04B1/20E04B1/215E04G13/025
Inventor 姚芳辉姚伟华
Owner 姚伟华
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