Construction method for increasing to build multi-storey basement to original building

A construction method and basement technology, which are applied in construction, building maintenance, building construction, etc., to save construction period, save project cost, and be beneficial to urban development and construction.

Inactive Publication Date: 2009-04-01
NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for adding multi-storey basement to the original building, which solves the problem of retaining and protecti...

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  • Construction method for increasing to build multi-storey basement to original building
  • Construction method for increasing to build multi-storey basement to original building
  • Construction method for increasing to build multi-storey basement to original building

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Embodiment Construction

[0019] A kind of construction method of the present invention builds multi-storey basement to original building The specific construction process is:

[0020] (1) Excavate above the burial depth of the strip foundation under the historical building wall 1 and below the outdoor floor, clamp 2 with concrete ring beams on both sides of the root of the wall for reinforcement, and fix it with prestressed bolts 3 through the wall. In order to prevent the wall from rotating along the toe of the wall, a channel steel 4 fixed through the wall is used to weld 5 the upper embedded parts of the reinforced concrete ring beam clamped on both sides at several places above the reinforced concrete ring beam, and concrete 6 is poured to form A more rigid wall toe and fulcrum. With this node as the fulcrum, according to the force distribution of the historical building, excavate and pour a whole piece of reinforced concrete slab 7 under the wall of the historical building at the intersection of ...

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Abstract

The invention discloses a method for constructing an additional multi-layer basement for an original building, which comprises the steps of (1) carrying out underpinning of the original building and finishing the first underpinning; (2) reinforcing the structure of the original building and enhancing the overall rigidity thereof; (3) constructing the roof structure of the additionally built basement; (4) pressing the structure engineering piles of the additionally built basement and finishing the second underpinning; (5) reversely constructing the first layer under ground and cropping piles of the first underpinning in the original building foundation; (6) reversely constructing the whole additionally built underground structure; and (7) finishing all basement structures. The method has the advantages that: the method is capable of realizing effective protection of historical buildings to the most extend, requires no conventional movement or relocation of the historical buildings, does not affect the construction of the newly built basement while preserving and protecting the historical buildings, is beneficial to the development and construction of cities, is capable of shortening construction period effectively, saves construction cost and forms a whole-set of constructing technologies and methods with great social and economic benefits.

Description

technical field [0001] The invention relates to a construction method for adding multi-storey basements to original buildings in construction sites, in particular to a construction method for adding multi-storey basements to historical buildings to be preserved and protected. The present invention is a new development of the conventional reverse construction method under new construction conditions Background technique [0002] The upside-down method is a new construction technology developed in recent years and widely used in the deep foundation construction of high-rise buildings. The upside-down method is to use underground diaphragm wall or row of piles as the support system of the foundation pit. The underground diaphragm wall can also be used as the outer wall of the underground structure. A top-down reverse construction method. Since the underground diaphragm wall or row of piles is used as the support system of the foundation pit, it can also be used as the outer w...

Claims

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Application Information

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IPC IPC(8): E04G23/02
Inventor 王允恭赵琪徐庆
Owner NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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