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Joint for enabling independent latticed column to pass through inner supporting beam and construction method for joint

A technology of supporting beams and lattice columns, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of long occupation time of foundation pits and basement structures, difficult construction of multi-storey basement structures, and late completion of positive and negative zero floor slabs, etc. problems, to achieve the effect of guaranteeing section width and construction quality, ensuring safety and stability, and simple construction

Pending Publication Date: 2019-12-20
CHINA CONSTR FIRST DIV GROUP CONSTR & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing deep foundation pit construction is mainly divided into forward construction and reverse construction. During the forward construction, the construction of the foundation pit and the basement structure takes a long time, and the completion time of the positive and negative zero floor is relatively late; although the reverse method can be the first to complete the positive and negative zero floor Construction, but multi-storey basement structure construction is difficult and time-consuming

Method used

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  • Joint for enabling independent latticed column to pass through inner supporting beam and construction method for joint
  • Joint for enabling independent latticed column to pass through inner supporting beam and construction method for joint
  • Joint for enabling independent latticed column to pass through inner supporting beam and construction method for joint

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specific Embodiment

[0044] In this embodiment, the construction method of the support device installed on the steel column of the foundation floor is as follows:

[0045] Step 1: Install polystyrene boards within the coverage of the inner support beams on the four sides of the independent lattice columns, and the polystyrene boards are fixed with binding iron wires;

[0046] Step 2: Position and set out the internal support of the independent lattice column, determine the positional relationship between the independent lattice column and the internal support beam, whether it is located at the center line and the distance from the center line, and determine the beam width L of the internal support beam.

[0047] Step 3: Bind the stirrups of the inner support beam and the main reinforcement of the inner support beam according to the requirements of the drawings. The main reinforcement of the inner support beam is disconnected when it meets the polystyrene board, and the stirrups of the inner support...

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Abstract

The invention discloses a joint for enabling an independent latticed column to pass through an inner supporting beam and a construction method for the joint. Width of the inner supporting beam is greater than longitudinal width of the independent latticed column, the outer walls of four sides, passing through the inner supporting beam, of the independent latticed column are attached with polyphenyl plates; haunching zones are arranged on the two sides, which correspond to the independent latticed column, on opposite sides of the inner supporting beam; the horizontal sections of the haunching zones are in the shapes of isosceles trapezoids; the center point of the independent latticed column and the upper sides of the two isosceles trapezoids, i.e., connecting lines of center points of sidelines of the haunching zones are positioned on the same longitudinal straight line, and the length of the side lines of the haunching zones is at least three times of the transverse width of the latticed latticed column. The joint can effectively solve the problem that the independent latticed column is not rigidly connected to the inner supporting beam, effectively guarantees inner support section width and construction quality, and ensures safety and stability of inner support.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a node where an independent lattice column passes through an inner support beam and a construction method thereof. Background technique [0002] Reinforced concrete internal support is widely used in super large deep foundation pits, and steel lattice columns are generally used as the vertical support of the internal support. The existing deep foundation pit construction is mainly divided into forward construction and reverse construction. During the forward construction, the construction of the foundation pit and the basement structure takes a long time, and the completion time of the positive and negative zero floor is relatively late; although the reverse method can be the first to complete the positive and negative zero floor construction, but the multi-storey basement structure construction is difficult and time-consuming. [0003] A certain project refers to the constr...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 李卓文张秀川耿东各喻鹏申雪伟张天宇贾子超闫鸷超刘加乐李广奇
Owner CHINA CONSTR FIRST DIV GROUP CONSTR & DEV
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