Technology overview

The PC integrating structure by which construction period reduction and required manpower minimization can be achieved through the dry method of construction work is being reviewed. PC double beam,apartment hybrid PC system, and stairs system were also developed.The double beam PC structure is easy to apply to structures with high floor level and huge live load such as logistics centers. The hybrid PC system is a construction method for minimization of labor by which quick and convenient construction of apartment complex underground parking lot with competitive cost can be performed. The COSEC stairs system is a construction method that achieves quality improvement and construction period reduction by making the stairs PC upon core pre-construction of a high-rise building.

Effects

Cost savings and buildability improvement

Applied projects

Applied to numerous sites including Dongtan Logistics Center, Doma e-Pyunhan Sesang Forena

Intellectual Property Rights

• Patent No. 10-0875960: construction method of precast concrete stairs
• Patent No. 10-1036174: joint structure of PC beam for use in building construction using the PRC integrating method
• Patent No. 10-1036175: joint structure of PC beam for use in building construction using the PRC integrating method
• Patent No. 10-1086222: PC slave for building with reinforcement structure as a set
• Patent No. 10-1151047: Sleeve for anchorage of continuity reinforcing bar in PC structural wall
• Patent No. 10-1586385: Coupled PC composite girder for high-load long-span floor structure and construction method
• Patent No. 10-2019-0016275: Hybrid PC underground parking lot

Technology overview

As a plane truss-type shear reinforcing method to reinforce the slab-column copula of the reinforced concrete mushroom slab structure that is weak to shearing, the technology contributes to structural resistance performance in case of direct shear destruction and imbalance moment. Even after concrete slab damage, independent structural behavior is possible.

Effects

Earthquake resistance performance, cost savings, and buildability improvement

Applied projects

Some 30 sites including e-Pyunhan Sesang Yangju 4

Intellectual Property Rights

New construction technology no. 641: reinforcement method of the slab-column copula of reinforced concrete mushroom slab structure using insertion-type plane truss

Technology overview

Upon construction of the underground floor’s exterior wall (attached wall) depositing concrete to the sheathing side, a construction method improving buildability and cutting labor force by replacing the solder system with TG truss

Effects

Cost savings and construction period reduction

Applied projects

Many projects including Gimpo Gurae Knowledge Industry Center, e-Pyunhan Sesang Gwangjin Grand Park

Intellectual Property Rights

• Patent No. 10-1934520
• Patent No. 10-2011988

Technology overview

A construction method that ensures stable bearing power of soil and controls long-term sagging through ground transposition at the foundation of weak ground

Applied projects

Underground parking of apartment complex including e-Pyunhan Sesang Cheonggye, logistics warehouse, SOG floor

Intellectual Property Rights

• New Technology No. 816
• Patent No. 10-1874380

Technology overview

While the quantity of cement use is significantly reduced compared to regular concrete and the amount of industrial by-products is greatly increased, this technique has the same workability, early strength and durability as normal concrete.

Effects

Reduction of carbon emission, Cost reduction, Improving workability

Applied projects

• Applied to about 20 construction sites in addition to ePyunhansesang Gwanggyo
• Applied to about 10 construction sites in addition to H2 Hotel

Intellectual Property Rights

• Patent No. 10-1042817 : Admixture composition for promoting the ionization of concrete, and Eco-friendly low carbon concrete including thereof.
• Patent No. 10-1356967 : Eco-friendly low-cement binding material compounds containing free CaO
• Patent No. 10-1239385 : Eco-friendly low-carbon binding materials in connection with metallic salts reactionary compounds and concrete compositions using these materials

Technology overview

Upon concrete deposition in winter, a factor technology for thermal curing to cure concrete, concrete mix to harden antifreeze concrete without a tent for keeping warm and antifreeze admixture

Effects

Cost savings, buildability improvement

Applied projects

Dongtan Logistics Center, e-Pyunhan Sesang Unjeong Urban Prime

Intellectual Property Rights

Patent No. 10-1815913: concrete antifreeze admixture