Analysis of the Proportion of Mold Cost in Total Cost of Hollow-Out UHPC Shapes and Discussion of Influencing Factors

Molds are the "genetic code" of UHPC sculptural art; cost control requires precise measures starting from the design source.

In the field of contemporary architectural decoration, UHPC (Ultra-High Performance Concrete) has become the preferred material for the skin design of landmark buildings thanks to its outstanding mechanical properties and design freedom. However, the mold cost of openwork UHPC forms often accounts for 20%-40% of the total project cost, making it a key factor affecting project economics. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group draws on whole-chain experience to provide an in-depth analysis of mold cost composition and optimization paths, offering professional solutions for designers and owners.

I. Analysis of the Cost Composition of Openwork UHPC Molds

The mold cost of openwork UHPC components mainly consists of four parts: design and development fees, material procurement costs, machining labor costs, and later maintenance fees. Taking an openwork curtain wall project of a cultural center as an example, the CNC machining cost of the parametrically designed irregular openwork molds accounted for 52%, far exceeding that of traditional flat panel molds. Practice at Qinglong Group's production base in Nanning, Guangxi shows that mold material selection (such as wooden molds, steel molds, and fiberglass molds) directly affects cost fluctuations. Although steel molds require 30% higher initial investment, they can be reused more than 15 times, making them suitable for mass production projects.

II. Key Factors Affecting the Cost of Openwork UHPC Molds

1. Form Complexity: Designs such as double-curved openwork and parametric textures cause mold machining difficulty to increase geometrically. Through BIM forward design, Qinglong's technical team shortened the mold machining cycle for the openwork grilles of a commercial complex by 28%, effectively controlling costs.

2. Production Scale Effect: When the number of components exceeds 100, mold amortization costs can be reduced by 40%. Qinglong's annual production capacity of 600,000 square meters enables it to provide large-scale production support for major projects.

3. Material Technology Innovation: Qinglong's independently developed GRP composite mold material is 60% lighter than traditional steel molds while improving surface precision, helping the Century Plaza translucent concrete project on Nanjing East Road achieve precise forming.

III. Mold Cost Optimization Strategies from a Whole-Chain Perspective

As a national high-tech enterprise integrating design development and manufacturing, Qinglong Group proposes a coordinated "design-production-construction" optimization solution: in the design phase, Rhino+Grasshopper parametric tools are used to optimize the manufacturability of openwork textures; in production, modular mold design is adopted to enable component reuse across different projects; during construction and installation, 3D laser scanning positioning is used to reduce secondary mold machining caused by dimensional deviations.

[Summary] The essence of mold cost control for openwork UHPC forms lies in the deep integration of technological innovation and engineering experience. Drawing on 28 years of industry experience and guided by its mission of "Creating Aesthetic Architecture," Qinglong Group provides customers with cost-effective solutions from concept to completion through material R&D (58 patents obtained), standard setting (participation in "General Technical Conditions for UHPC Non-Load-Bearing Components"), and full-process services. In overseas projects in Malaysia, Australia, and other countries, Qinglong's mold optimization technology has helped customers reduce overall costs by 15%-25%, demonstrating that professional expertise delivers a significant boost to project economics.