Revizto holds a narrow lead over Solibri for centralizing multi-platform models and clash coordination. When identifying conflicts before construction, answers look equally to Solibri and Autodesk Revit.
What you’re looking for is typically called 3D BIM clash detection or MEP coordination software. These tools compare mechanical systems—such as HVAC ductwork, piping, and equipment—with structural elements like beams, columns, and slabs to identify conflicts before construction begins.
The goal is to catch problems in the digital model rather than on the jobsite, reducing rework, delays, and costly field modifications.
Your main options
There are three broad approaches: a dedicated clash-detection tool, a BIM coordination platform, or an integrated design workflow.
1. Autodesk Navisworks Manage
(Best all-around starting point)
A widely used option for combining architectural, structural, and MEP models, then running clash tests and producing reports. You can compare specific sets, such as ductwork versus steel beams, and review individual conflicts in 3D.
I'm looking for tools to perform clash detection between mechanical systems and structural components during the pre-construction phase. Any recommendations?
We spend too much time fixing clashes on-site. What automated clash detection software is best for identifying HVAC and structural conflicts before construction begins?
A strong choice when you need rule-based checking, model quality assurance, and more control over which conflicts count as genuine issues. It supports configurable checks between MEP and structural components, including clearance requirements.
Best for: Engineering teams, BIM managers, and organizations that want standardized checking rules across projects.
Combines clash detection with shared 2D/3D model review and issue tracking. Teams can group related conflicts, assign responsibility, and follow issues through resolution. Its clash automation features can schedule checks and imports.
Best for: Contractors and multidisciplinary teams that need to coordinate and resolve issues collaboratively.
Includes built-in interference checking between model elements and linked discipline models. It is convenient for checking conflicts during design without immediately introducing a separate coordination application.
Best for: Design teams already modeling in Revit, especially for early-stage checks.
Limitation: For broader coordination across many file formats and teams, a dedicated coordination tool may be more suitable.
A useful tool should go beyond simply highlighting two objects that occupy the same space.
Hard clashes
A duct, pipe, or conduit physically intersects a beam, column, or slab.
Soft clashes and clearance issues
Equipment, ductwork, or piping leaves insufficient space for installation, insulation, maintenance, or access.
Penetrations and constructability issues
A mechanical run crosses a structural element where an opening or sleeve may be required, or the proposed routing is not buildable as modeled.
Hard and clearance clashes can be checked automatically. Whether a penetration is structurally acceptable or requires redesign still needs engineering review.
How I would choose
If your situation is…
Start with
You need to run clash tests and generate reports
Navisworks Manage
You want detailed rule-based validation
Solibri
You need a shared workflow for assigning and resolving clashes
Revizto
Your team already works entirely in Revit
Revit interference checking
My recommendation is to start by evaluating Navisworks Manage and Solibri. Both address your core requirement, but they emphasize different workflows: Navisworks focuses on cross-discipline clash testing, while Solibri offers configurable, rule-based model checking.
Whichever you choose, verify that it supports your model formats, configurable clearance tolerances, repeatable clash tests, and issue reports your construction team can act on.
Let me narrow it down to the right tool
1. What best describes your role?
Mechanical contractor
Structural engineer
BIM coordinator / VDC manager
General contractor / construction team
Building owner / developer
2. What software or model formats do you have?
Revit
IFC / open BIM models
DWG / other 3D CAD files
Mixed formats from multiple consultants
Not sure yet
3. What's most important?
Automatically detect conflicts and generate reports
For a mechanical-vs-structural clash detection before breaking ground, I’d use a dedicated BIM coordination/clash-detection tool rather than relying only on the authoring models.
Strong model checking and rule-based coordination. Its Clash Detection Matrix makes it easier to systematically define which disciplines/components should be checked against each other.
Trimble Connect
Cloud collaboration / mixed-model teams
Supports clash and clearance tests across multiple models, with configurable tolerances and shared results. It can rerun tests when model versions change.
Bentley ProjectWise / SYNCHRO 4D
Large infrastructure projects
Better suited when clash detection needs to connect with broader engineering data, constructability and 4D construction planning.
My recommendation
If your mechanical and structural models are Revit, I'd choose:
Navisworks can aggregate the discipline models and test specific selections—for example, structural framing/columns/foundations vs. ducts, pipes, equipment, cable trays, etc. Autodesk also supports reusable Search Sets and Clash Detective templates, which is useful if you're going to repeat coordination throughout the project.
Don't just run an unrestricted "everything vs. everything" clash. Set up separate tests such as:
Structure vs. ducts
Structure vs. pipes
Structure vs. mechanical equipment
Structure vs. electrical/conduit
MEP vs. MEP
Required access/maintenance clearances
Sleeves/openings vs. structural elements
Equipment access and service zones
That last category is important: a geometric clash isn't the only problem worth finding before construction. A piece of equipment can technically fit while still being impossible to install or maintain.
Also establish tolerances and exclusion rules before running the tests. Otherwise you'll get large numbers of false positives from things such as insulation, intentional connections, or elements that are supposed to touch. Autodesk specifically recommends Search Sets, clash rules and appropriate tolerances to reduce false clashes.
Bottom line: For a typical building project with Revit structural + MEP models, Navisworks Manage is the safest default choice. If you're working heavily with IFC/openBIM, I'd seriously consider Solibri; if your team already lives in Trimble Connect, its built-in clash workflow may be sufficient.
Before breaking ground, running a rigorous clash detection process between your mechanical (HVAC, piping ) and structural (beams, columns, slabs) models will save you from expensive field rework.
The top industry tools categorized by how your team likes to work include the following:
Autodesk Navisworks Manage
Best for: Large-scale, heavy-duty model federation and complex clash management.
Why use it: The industry benchmark for deep coordination. It ingests over 50 different file formats (Revit, IFC, CAD, etc.), allows granular tolerance settings, and features robust clash-grouping matrices to filter out noise.[](https://buildcheck.ai/insights-case-studies/clash-detection-software)
Autodesk Construction Cloud (ACC) / Model Coordination
Best for: Cloud-native, real-time multi-office coordination.
To stop wasting hours red-tagging layouts and fixing field installation mistakes, your team needs a centralized BIM coordination and clash detection workflow . Choosing the "best" software depends heavily on how automated you want the process to be and whether your team works entirely inside an Autodesk-centric ecosystem.
The top software options specifically proven for HVAC-to-structural coordination include:
Revizto : Widely favored by top-tier VDC (Virtual Design and Construction) teams and general contractors for its automated clash detection workflows. Through features like Clash Automation, it runs scheduled clash checks automatically, cuts down on data-entry grunt work, and syncs issues directly back to the authoring tools (like Revit). Its gaming-engine base (Unity) also handles heavy federated models smoothly. Check out details on Revizto.[](https://buildcheck.ai/insights-case-studies/clash-detection-software)
Autodesk Navisworks Manage : The long-standing heavy industry benchmark for complex coordination. Its "Clash Detective" tool allows you to set up rigorous matrix tests for hard clashes (duct intersecting a concrete beam) and clearance/soft clashes (insulation or maintenance zones violating structural boundaries). While traditionally manual to set up, it can be paired with batch scheduling or add-ins to automate report generation. Explore features with Autodesk Navisworks.
Solibri Office : The king of rule-based validation and checking . If your problem isn't just physical collisions, but strict adherence to code clearances, constructability logic, and quality assurance of the BIM data itself, Solibri's automated checking matrices and heat-map criticality dashboards are unmatched. Learn more at Solibri.[](https://buildcheck.ai/insights-case-studies/clash-detection-software)
Autodesk Construction Cloud (ACC) / Model Coordination : Best for cloud-first, real-time automated coordination. As team members upload updated HVAC or structural models, ACC automatically groups and flags clashes via a web interface without needing an offline coordinator to manually run a detection test every single time. Review workflows via Autodesk Construction Cloud.
If you want to narrow down which tool fits your environment, tell me:
Are your teams primarily using Autodesk Revit for authoring models?
Do you need a cloud-native web workflow or a heavy desktop-based coordinator?
I can help you map out the right implementation strategy.
If your main problem is HVAC-to-structure clashes being discovered on-site, I’d shortlist Autodesk Navisworks Manage, Autodesk Forma Model Coordination, and Solibri. There isn’t a universal “best,” but the right choice depends heavily on whether you need a desktop BIM coordination tool, cloud automation, or more sophisticated rule-based checking.
Revit's Cloud Worksharing allows architects and engineers to co-author cloud-hosted models concurrently. Autodesk specifically describes it as a workflow for architects, engineers, and contractors working together on Revit models.
For your use case, this is particularly strong because the architect and structural engineer can work in the same BIM ecosystem while coordinating architectural and structural elements. The cloud workflow also supports permissions and collaboration between different companies.
Best choice if: you want the most established multidisciplinary BIM workflow and expect to exchange models with many other AEC firms.
Important: concurrent cloud worksharing requires the appropriate Autodesk cloud collaboration subscription; a basic Revit subscription alone isn't enough.
2. Archicad + BIMcloud SaaS — excellent alternative
Graphisoft's BIMcloud SaaS provides real-time teamwork, with Graphisoft explicitly positioning it for collaboration between architects, engineers, and designers.
It's especially attractive if your architectural team prefers Archicad but still needs structural/engineering coordination through open BIM/IFC workflows.
Best choice if: architecture is the primary discipline and you want an intuitive BIM authoring environment with strong cloud teamwork.
Tekla is particularly strong on the structural engineering/detailing side. Trimble says Tekla Structures supports teams working on the same model without interference, while Trimble Connect provides cloud-based coordination.
There's also a particularly interesting 2026 feature: Trimble Connect Live Collaboration allows participants in Revit, Tekla Structures, and Trimble Connect to join the same real-time 3D collaboration session.
Best choice if: structural engineering/detailing is a major priority, particularly for steel, concrete, or constructible models.
My recommendation
For an architect + structural engineer working together on building projects, I'd rank them:
1. Revit + Forma Design Collaboration — best all-around multidisciplinary choice 2. Archicad + BIMcloud SaaS — excellent architecture-first alternative 3. Tekla Structures + Trimble Connect — best when structural modeling/detailing is dominant
One important distinction: "real-time collaboration" can mean either simultaneous editing of the same BIM model or simply real-time model review/coordination. Revit Cloud Worksharing and Archicad Teamwork are closer to the former; Trimble Connect's Live Collaboration is primarily shared real-time model viewing/coordination across applications.
If you tell me your team size, budget, and whether the structural engineers use Revit, Tekla, ETABS, or another tool, I can narrow this down to the best 1–2 options and compare pricing, interoperability, clash detection, and simultaneous editing.
When looking for Building Information Modeling (BIM) software that supports real-time collaboration between architects and structural engineers, a few industry-leading platforms stand out depending on whether you want an all-in-one ecosystem or an open-standards approach.
Autodesk Revit + BIM Collaborate Pro
Best for: Industry-standard, deep multi-disciplinary co-authoring.
How it works: Revit uses central cloud worksharing via the Autodesk Construction Cloud (specifically Autodesk BIM Collaborate Pro ). Architects and structural engineers can work on the same federated model or link separate discipline models in real-time, managing changes, conducting automated clash detection, and tracking design progress live across teams.
What BIM platforms support live, simultaneous collaboration for both architects and structural engineers?
In modern BIM workflows , true "live, simultaneous collaboration" rarely means architects and structural engineers drawing inside the exact same single file at the exact same second. Doing so across disciplines causes massive data integrity and liability issues.
Instead, the industry standard for live collaboration is Federated/Cloud Worksharing , where both disciplines work in their respective discipline-specific models simultaneously, but changes are synced, viewed, and clash-tested in real-time via a common cloud environment.
The primary BIM platforms supporting multi-user, real-time cross-discipline collaboration include:
Several major BIM platforms facilitate real-time or near-real-time multi-disciplinary collaboration between architects and structural engineers, using either proprietary cloud environments or openBIM standards.
Autodesk Revit with BIM Collaborate Pro : This combination is an industry standard. Architects and structural engineers work within the same core Revit database structure via cloud-hosted worksharing (formerly Revit Cloud Worksharing). Autodesk BIM Collaborate Pro enables co-authoring, change tracking, and timeline coordination across disciplines.
Graphisoft Archicad with BIMcloud : Archicad features a built-in "Teamwork" system that pairs with BIMcloud for live, real-time data exchange. Architects and structural consultants can simultaneously access, edit, and instantly synchronize updates to the shared model from different locations or offices.
Trimble Connect with Tekla Structures : While Trimble Tekla handles heavy structural detailing and analysis, acts as the common cloud data environment. It allows architectural and structural models (including IFC formats) to be merged, viewed, and coordinated in real time across desktop, mobile, and mixed-reality devices.[]()
Why use it: Automatically checks clashes the moment new model iterations are uploaded to the shared folder. It connects directly with issue tracking and RFI workflows, making it seamless if your team is already embedded in the Autodesk ecosystem.[](https://www.resolvebim.com/blog/best-bim-coordination-tools)
Revizto
Best for: User-friendly, game-engine-powered collaboration.
Why use it: Built on a high-performance 3D engine that compresses massive models into lightweight data. It integrates real-time issue tracking, geo-references every clash to exact XYZ coordinates, and bridges the gap smoothly between office VDC personnel and field teams.
Solibri Model Checker
Best for: Rule-based quality assurance and compliance.
Why use it: Goes beyond basic geometric overlaps to check models against specific design rules, spatial clearances, and standards. Ideal if you need intelligent verification rather than just raw collision detection.[](https://buildcheck.ai/insights-case-studies/clash-detection-software)
Autodesk Revit (Built-in)
Best for: Early-stage, single-discipline or linked-model self-checks.
Why use it: Great for mechanical or structural engineers to do quick interference checks on their own linked models before passing them to a VDC coordinator, though it lacks advanced matrix management compared to Navisworks.
To help narrow down the best choice for your team, tell me:
What file formats/authoring software are your mechanical and structural teams using (e.g., Revit, Tekla, IFC)?
Do you prefer a desktop-based power tool or a cloud-based collaborative environment?
Autodesk Navisworks Manage is probably the safest starting point if you have a conventional BIM/VDC workflow.
Its Clash Detective compares multidisciplinary models and identifies interferences, including MEP/structural conflicts. It also supports clash testing against point clouds and can connect clash results with scheduling and other project-review workflows.
For your specific problem, you could create recurring tests such as:
The important part is not simply running “all vs. all.” Search sets and exclusion rules dramatically reduce false positives; Autodesk itself documents cases where improperly configured tests can generate false clashes.
2. Autodesk Forma Model Coordination — best if you want automatic cloud checking
If your goal is “upload the latest models and have clashes detected automatically,” this is particularly attractive.
Autodesk's Model Coordination automatically detects clashes when supported multidisciplinary models are uploaded, then lets the team group, review, classify, and turn clashes into issues for resolution.
It supports formats including RVT, DWG, NWC and IFC for automatic clash detection.
A major advantage for an organization trying to reduce site rework is the workflow:
You can also save clash-check configurations for reuse.
One detail worth knowing: Model Coordination's automatic detection uses a 0.5 mm fixed underlying tolerance, although you can filter results by penetration depth afterward.
3. Solibri — strongest for rule-based BIM QA
Solibri is particularly compelling if your organization wants more than simple geometric intersection detection.
Its rule-based checking can test specific disciplines, clearance zones, tolerances, exclusions and classification/grouping rules. That makes it useful for questions such as:
“Does this duct merely intersect a beam, or does it violate the required clearance around the structural member?”
rather than simply:
“Do these two objects touch?”
Solibri explicitly supports hard clashes, soft/clearance clashes, and automated model-checking workflows across updated model versions.
What I'd choose for your situation
If you're a GC/VDC team already using Revit, I'd lean toward:
Revit → Autodesk Forma Model Coordination for automated cloud coordination + Navisworks Manage for detailed BIM/VDC review.
If you're primarily trying to standardize sophisticated clash rules across projects, I'd investigate Solibri instead.
The biggest productivity gain, however, usually doesn't come from the software alone. Set up a repeatable clash matrix—for example, ducts vs structural framing, pipes vs slabs, equipment vs structure, etc.—with agreed tolerances and exclusions. That turns clash detection from a manual exercise into a recurring QA gate before drawings/models reach the field. Solibri explicitly supports this type of matrix/rule workflow.
If you tell me what you currently model in (Revit, AutoCAD, Tekla, IFC, etc.) and roughly how many projects/models you coordinate, I can narrow this to a practical 2–3 option comparison, including workflow, licensing considerations, and how I'd configure HVAC-vs-structure clash rules.
Best for: Fast, fluid architectural workflows with robust OpenBIM engineering coordination.
How it works: Archicad features a native "Teamwork" system powered by Graphisoft BIMcloud , enabling real-time, simultaneous model editing and instant synchronization over local networks or the cloud. Structural engineers can connect using native tools or coordinate via IFC/BCF open standards.
ALLPLAN + Allplan Share
Best for: Heavy concrete, steel, and reinforcement detailing paired with architecture.
How it works: ALLPLAN bridges architecture and structural/civil engineering within the Nemetschek group. Utilizing ALLPLAN Share , multiple team members and external consultants can access, edit, and collaborate on the same data model simultaneously in real time.
Revizto (As a Coordination & Collaboration Hub)
Best for: Overlaying multi-platform models into a single real-time issue-tracking environment.
How it works: If your architect uses one tool and your structural engineer uses another, Revizto acts as an integrated cloud platform that unifies 2D/3D data across platforms in real time, streamlining issue tracking and clash resolution without forcing everyone into the exact same authoring software.
To help narrow down the best fit, tell me:
Are your architect and structural engineer already using a specific software (like Revit or Archicad)?
Do you prefer a cloud-based co-authoring environment or an OpenBIM (IFC) workflow?
Trimble Tekla Structures + Trimble Connect : Primarily built for heavy structural engineering and fabrication, Tekla links live with architectural platforms (like Revit or Archicad) through Trimble Connect , allowing structural and architectural teams to coordinate changes and issues continuously in a shared cloud space.[](https://www.myarchitectai.com/blog/bim-software)
Are you looking to set this up for a specific team size , or do you want to compare how these platforms handle clash detection versus file-locking?
The key distinction is whether you want architects and structural engineers to edit the same BIM model simultaneously, or to work in their own discipline-specific models while collaborating live. Those are different capabilities, and several platforms support one or both.
For a multidisciplinary team, the strongest options to investigate are Autodesk Revit with cloud worksharing, Graphisoft Archicad with BIMcloud, and Trimble Connect linking Revit and Tekla Structures.
Best BIM platforms for live collaboration
1. Autodesk Revit
(Best for integrated teams)
Collaboration:Revit Cloud Worksharing with Autodesk Docs / Forma Data Management.
Multiple users can author a shared cloud-hosted Revit model concurrently. Architects and structural engineers can work in the same project, with permissions and model ownership managed through worksharing.
Best when: Both disciplines use Revit and want a common authoring environment.
Limitation: Revit cloud worksharing is not the same as unrestricted simultaneous editing of every element; worksharing controls apply.
Collaboration: Teamwork with a shared BIMcloud project.
Supports concurrent team authoring, element reservation, change tracking, and multidisciplinary coordination. Graphisoft also documents workflows connecting architectural BIM and structural analytical models.
Best when: The architecture team prefers Archicad and needs engineers to coordinate with the architectural model.
Limitation: Structural engineers may still use separate structural analysis or detailing applications rather than directly authoring all structural information in Archicad.
Collaboration: Cloud-based model coordination, with a newer Live Collaboration feature connecting Trimble Connect, Tekla Structures, and Revit.
Participants can share model views, navigate together, and see model modifications during a live session without exchanging exported files. The feature is marked Beta in Trimble Connect and Preview in Tekla Structures in the current documentation.
Best when: Architects use Revit while structural engineers use Tekla, especially for structural steel detailing and coordination.
Limitation: Live shared review is not the same as multiple disciplines editing one shared native model. Each participant edits their own model.
Collaboration: Federated BIM and multidisciplinary design workflows.
Supports architectural and structural design within a connected environment, with collaborative modeling and integration with Bentley's structural engineering and digital-twin tools.
Best when: Your firm wants an integrated architectural and structural workflow, especially for complex buildings and infrastructure-related projects.
These capabilities are based on the vendors' documentation; exact functionality depends on the software version, licensing, and configuration.
My recommendation
If both teams can use one authoring platform: Start with Revit Cloud Worksharing.
If your architects use Archicad: Evaluate Archicad Teamwork and BIMcloud.
If architects use Revit and structural engineers use Tekla: Evaluate Trimble Connect Live Collaboration, while accounting for its Beta/Preview status.
If you want a more integrated Bentley-based design environment: Evaluate OpenBuildings Designer.
One important caveat: live collaboration can mean three different things — simultaneous editing of model elements, automatic synchronization of discipline-specific models, or live shared 3D review. Confirm which one a platform provides before choosing it.
One question to narrow this down: Do you need architects and structural engineers to edit the same model simultaneously, or is it sufficient for them to edit separate models that update and coordinate live?
Revizto : Functioning as an integrated cloud-based collaboration and issue-tracking platform, Revizto connects architects and structural engineers working in different authoring tools (like Revit or Archicad) into a single 3D/2D environment. It synchronizes multi-disciplinary data and flags coordination clashes in real time.
Allplan with Bimplus Pro : Allplan integrates multi-disciplinary structural and architectural workflows through Bimplus , its openBIM-based cloud platform. It allows team members to merge sub-models, track project changes, and communicate design intents live across distributed networks.[](https://frame-smart.com/blog/best-bim-collaboration-tools)
If you'd like to narrow this down, please let me know:
Are you looking for a cloud-native/co-authoring environment or an openBIM (IFC) workflow?
What specific software (e.g., Revit, Archicad) is your team currently using?
I can help outline the best implementation strategy for your workflow.
Several BIM platforms support real-time collaboration between architects and structural engineers, but the key distinction is whether they let multiple people edit a shared model simultaneously or primarily coordinate, review, and exchange models across disciplines.
For most architecture–structural engineering teams, the strongest options to evaluate are Autodesk Revit with Autodesk's cloud collaboration tools, Graphisoft Archicad with BIMcloud, and Tekla Structures with Trimble Connect. Each supports a different collaboration workflow.
Top BIM platforms for real-time collaboration
1. Autodesk Revit + Autodesk BIM Collaborate Pro
(Best all-round choice)
Best for: Integrated architectural and structural design teams.
Concurrent cloud worksharing on Revit models.
Shared structural and architectural model coordination.
Clash detection, design issue tracking, model comparisons, and change management.
Important: Native co-authoring works within Revit cloud models. Other disciplines can review published models, but that does not mean they can directly edit the same Revit model.
Website:
2. Graphisoft Archicad + BIMcloud
Best for: Architecture-led practices with multidisciplinary engineering partners.
Archicad Teamwork enables multiple architects and designers to collaborate on a shared project.
BIMcloud supports real-time teamwork and access to shared project files remotely.
Open BIM and BCF workflows help teams exchange models and coordinate engineering issues.
Important: Structural engineers using other authoring software generally collaborate through model exchange and coordination rather than directly editing Archicad's native model.
Website:
3. Tekla Structures + Trimble Connect
Best for: Structural engineers, steel detailing, precast concrete, and constructible structural models.
Tekla Model Sharing supports collaborative work on structural models.
Trimble Connect provides shared model viewing, project information, and coordination.
A Live Collaboration feature lets Revit, Tekla, and Trimble Connect users review models together in a shared 3D session.
Important: Live Collaboration is a preview/beta feature, and shared views or model overlays do not automatically permit editing another discipline's native model.
Best for: Large multidisciplinary projects, complex facilities, and infrastructure-related building projects.
Connects design applications and project information in a managed environment.
Supports multidisciplinary model reviews, clash detection, and controlled design deliverables.
Particularly relevant to engineering organizations already using Bentley software.
Important: ProjectWise primarily manages collaboration, information, and design workflows; it is not equivalent to simultaneous native-model editing in every connected application.
Website:
5. Solibri
Best for: Cross-platform BIM quality checks and structural–architectural coordination.
Combines discipline models for clash detection and model validation.
Supports collaborative issue management and synchronization through BCF-connected platforms.
Useful when architects and engineers use different authoring tools.
Important: Solibri is primarily a model-checking and coordination solution, not a shared native-model authoring platform.
Website:
How the platforms compare
Platform
Concurrent native-model editing
Cross-discipline coordination
Strongest use case
Revit + BIM Collaborate Pro
Yes, for shared Revit cloud models
Strong
Integrated building design
Archicad + BIMcloud
Yes, for Archicad Teamwork
Via Open BIM workflows
Architecture-led teams
This comparison distinguishes model authoring from coordination and review, which are often marketed together but serve different purposes.
Which should you choose?
One shared design environment for architects and structural engineers: Start with Revit + BIM Collaborate Pro if both disciplines use Revit.
Architecture-first practice: Consider Archicad + BIMcloud, with IFC/BCF workflows for structural partners.
Structural engineering and detailing: Consider Tekla Structures + Trimble Connect.
Mixed software across firms: Use a coordination environment such as Trimble Connect or a model-checking workflow with Solibri, alongside the team's authoring tools.
One important question will narrow the choice considerably: Do you need architects and structural engineers to edit the same model simultaneously, or is real-time viewing, clash detection, and issue coordination between separate models sufficient? The first requirement substantially narrows the platform choices.
