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: 28 Mar

Pressure flow of prestressed steel composite support construction

The prestressing process of prestressed steel composite support construction and the problems to be paid attention to: 1. The order of prestressing is as follows after the layout of each component of the tool type composite support is completed
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: 26 Mar

Setting of construction datum point and positioning of pull line for prestressed steel composite support

Prestressed steel composite support construction datum point setting and cable positioning requirements: Before installing enclosing purlin, the axis datum point shall be determined, and the base point of the inner side of two adjacent corners of the foundation pit shall be calculated by the total station or theodolite through the coordinate, and the plane installation and positioning shall be carried out by the method of wire hanging through the base point. The deviation of the actual installation axis must not exceed 5mm.
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: 24 Mar

Prestressed steel composite support construction bracket and support beam installation

Prestressed steel composite support bracket and the support beam installation should pay attention to the following: installation of bracket is important to control the level of elevation, through the gusset, to hold, the stomach of beam positioning elevation pushes its top level elevation, the error must not exceed 5 mm, the top elevation difference between bracket should not be greater than L / 1500 (L) for spacing, and should not be greater than 10 mm; Upper elevation of bracket = center elevation of support structure - (1/2 H steel specification + support beam specification).
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: 22 Mar

Prestressed steel composite support construction triangle bracket

The position and elevation of the triangular bracket shall be determined according to the design drawing. If there is any change, the consent of the design unit shall be obtained and written permission shall be obtained.
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: 20 Mar

Construction of prestressed steel composite support column

Prestressed steel composite supporting pillar of construction, a project with a strong foundation in Shanghai as an example: lofting data calculation, check, construction lofting (small kind pile) using the polar coordinate method, according to the positioning drawings and to calculate each pile to pile bitmap station distance, Angle, fills in single well construction, through the calculation of independent, proofreading, respectively to review and sign.
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: 18 Mar

Cross working procedure of section steel combination support construction

(2) Ring beam construction :⑵ earth excavation: (3) steel support construction: (4) demolition construction:
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: 16 Mar

Advantages of prestressed steel composite support in foundation pit project

As a measure of foundation pit support, prestressed steel composite support is more and more used in foundation pit engineering projects as the surrounding environment of foundation pit becomes more and more complex and the underground space is used more and more fully today.
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: 12 Mar

Application of prestressed steel composite bracing in foundation pit support

The PRESTRESSED STEEL COMPOSITE SUPPORT TECHNOLOGY ADOPTED IN THE FOUNDATION PIT SUPPORT construction of Shanghai STRONG FOUNDATION is based on the principle of prestress, aiming at the shortcomings of traditional support, and developed through a lot of engineering practice and application of green deep foundation pit support system - PREstressed fish-belly FOUNDATION pit steel support.
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: 08 Mar

Prestressed steel composite support can be recycled

Prestressed steel composite support compared with traditional concrete support, because is to use steel component assembly, don't need to carry on the in situ conservation, in the last stage, the steel members is also more convenient dismantling is reinforced concrete, shorten construction period, reduce the construction noise, and steel component reuse, recycle to reduce the cost, Meet the environmental requirements of energy conservation and emission reduction.
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: 06 Mar

The prestress of a composite brace of prestressed steel sections

Compared with the traditional steel composite bracing, prestressed steel composite bracing increases the construction procedure of applying prestress. The steel support of prestressed fish-belly foundation pit adopts special fish-belly beam structure. Under the premise of ensuring the construction quality, it further reduces the number of steel components, provides a more open construction space, makes the construction of earth digging, earth transport and underground structure more convenient, improves the construction period as a whole, and reduces the cost at the same time.
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Shanghai QiangJin Foundation Engineering Co., Ltd.

Tel:400-100-2850

Address:No. 289, Huixian Road, Jiading District, Shanghai

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