Structural engineering, the pivotal discipline underpinning the physical manifestation of architectural marvels, is in a constant state of evolution. As we cast our gaze into the haze of tomorrow, we perceive a multitude of trends and predictions shaping this critical industry. It is driven by a confluence of technological advancements, societal needs, and environmental concerns, all of which will redefine the future contours of this field.

From the towering skyscrapers that paint our cityscapes to the bridges that connect disjointed geographies, structural engineers are the unsung heroes behind these feats of human ingenuity. Their work is fundamentally grounded in the principles of physics and mathematics to ensure the stability and durability of structures, protecting them against the forces of nature and man-made disasters.

Emerging trends are set to disrupt this field as we know it. Among these is the increasing use of Building Information Modelling (BIM). BIM is a digital representation of the physical and functional characteristics of a facility. This technology enables the generation and management of data about a building throughout its life cycle. BIM is not just a three-dimensional model of a structure; it also includes time as a fourth dimension (4D), cost as a fifth dimension (5D), environmental impact as a sixth dimension (6D), and facility management as a seventh dimension (7D). In essence, BIM provides a holistic view of the project, enabling efficient management, reducing costs, and improving sustainability.

Another technological advancement anticipated to revolutionize structural engineering is Artificial Intelligence (AI). AI, with its machine learning subsets, can predict structural loads more accurately, optimize structural design, improve construction safety, and enhance the efficiency of facility management. For instance, AI can detect patterns or anomalies in data that humans might miss, predicting structural vulnerabilities and enabling preventative maintenance, thus reducing the risk of catastrophic failures.

Looking towards sustainability, structural engineers are increasingly focusing on the use of eco-friendly materials and practices. As climate change concerns mount, the emphasis on green building and sustainable design is more urgent than ever. This shift towards ecological responsibility is reflected in the growing use of recycled and bio-based materials, such as bamboo and hempcrete, and the adoption of energy-efficient building practices.

Furthermore, resilience engineering is gaining prominence as the industry confronts the reality of climate change and the increasing frequency of extreme weather events. The concept of resilience in structural engineering is defined as the capacity to absorb or avoid damage without suffering a complete loss of function. Resilient structures are designed to withstand shocks and stresses, from earthquakes and hurricanes to floods and fires, ensuring the safety and continuity of human activities.

There is also an emerging focus on the social aspects of structural engineering. This includes considering the impact of structures on the community, from aesthetics and cultural heritage to public health and safety. For instance, the growing trend towards ‘walkability’ in urban design reflects a societal shift towards healthier, more sustainable lifestyles. Structural engineers have a vital role to play in creating environments that support these objectives.

However, these advancements are not without trade-offs. Technological disruptions, like BIM and AI, require significant investment in terms of infrastructure and skills development. They also raise concerns around data security and privacy. Sustainable and resilient design can entail higher upfront costs and may be constrained by the availability of suitable materials and technologies. As for the social aspects, the challenge lies in balancing the various, often conflicting, interests and values of stakeholders.

In conclusion, as we navigate the uncharted waters of the future, structural engineering stands at the crossroads of technology, sustainability, and societal change. The role of structural engineers is expanding beyond the technical realm to encompass environmental stewardship and social responsibility. As we venture into this brave new world, the key will be to embrace these changes while skillfully managing the associated challenges and risks. For, in the words of the renowned architect, Richard Rogers, "The only way forward, if we are going to improve the quality of the environment, is to get everybody involved."